Histomorphological differentiation of the skin of leopard (Panthera pardus), leopard cat (Prionailurus bengalensis), Bengal tiger (Panthera tigris), and golden jackal (Canis aureus)

Research (Published online: 30-04-2020)

32. Histomorphological differentiation of the skin of leopard (Panthera pardus), leopard cat (Prionailurus bengalensis), Bengal tiger (Panthera tigris), and golden jackal (Canis aureus)

Chukkath Vijayan Rajani, Harshad Sudhir Patki, Patgiri Simanta, Kalaripparambath Surjith, Padinjare Melepat Deepa and Mampillikalam Pradeep

Veterinary World, 13(4): 827-832

ABSTRACT

Background and Aim: Leopard (Panthera pardus), leopard cat (Prionailurus bengalensis) Bengal tiger (Panthera tigris), and golden jackal (Canis aureus) are carnivores. Leopard and Bengal tiger are listed in the red list as vulnerable species by the International Union for Conservation of Nature and Natural resources. Leopard cat and golden jackal are grouped under animals of least concern. A wide variation exists in the structure of the skin and pattern of hair follicles among domestic and wild mammals. Thus, the study aims to create a baseline data on the skin of leopard, leopard cat, Bengal tiger, and golden jackal and the data so obtained may form an indispensable tool in wildlife forensics.

Materials and Methods: Skin samples of leopard (n=3), leopard cat (n=4), Bengal tiger (n=3), and golden jackal (n=4) were collected from the Department of Pathology, College of Veterinary and Animal Sciences, Pookode. The samples were processed for paraffin embedding. Horizontal and vertical sections of 5 μm thickness were used for histological staining techniques. Observations on the layers and features of epidermis, hair follicle pattern and glands, namely, sweat and sebaceous were recorded.

Results: Skin comprised an outer epidermis and an inner dermis. Keratinized stratified squamous epithelium made up the epidermis. Stratum basale, stratum spinosum, stratum granulosum, and stratum corneum were discernible in leopard, Bengal tiger, and golden jackal. In leopard cat, stratum basale, stratum spinosum, and stratum corneum were present. Compound hair follicles were a characteristic feature of all species. However, the pattern varied. In leopard, leopard cat and Bengal tiger, a single large primary guard hair was encircled by compound follicles. The number of surrounding compound follicles ranged between five to seven in leopard, two to five in leopard cat, and three to seven in Bengal tiger. Each compound follicle, in turn contained, one to two coarse primary hair follicles and several fine secondary hair follicles. Compound follicles arranged as clusters of three were a salient attribute in jackal. The central follicle was comparatively larger than the lateral ones. Each compound follicle comprised a single long, primary hair, and six to eight smaller secondary hairs.

Conclusion: Histological variation in the skin of the leopard, leopard cat, Bengal tiger, and golden jackal was established. The data form a valuable basis for comparative histology of wild carnivores. Further, the data may be of value in the identification of the unknown skin samples of wild carnivores.

Keywords: Bengal tiger, golden jackal, leopard cat, leopard, skin.

Intestinal cestodes of chicken are effectively killed by quinoline-rich extract of Spilanthes acmella

Research (Published online: 30-04-2020)

31. Intestinal cestodes of chicken are effectively killed by quinoline-rich extract of Spilanthes acmella

Pawi Bawitlung Lalthanpuii and Kholhring Lalchhandama

Veterinary World, 13(4): 821-826

ABSTRACT

Background and Aim: Spilanthes acmella is used for the treatment of intestinal helminth infections in Mizo traditional medicine. In spite of a variety of drugs developed for helminthiases, an entirely safe and absolutely effective drug is still lacking, so much so that infections remain a major problem in human and animal welfare. In this study, we attempted to substantiate S. acmella as an anticestodal agent.

Materials and Methods: The aqueous extract of the aerial parts of S. acmella was prepared and from it a bioactive fraction was obtained using column chromatography. Chemical analyses were done using thin-layer chromatography (TLC) and gas chromatography–mass spectrometry (GC–MS). Helminth survival test was performed in vitro on an intestinal cestode, Raillietina tetragona. Structural effects on the cestode were examined under scanning electron microscopy.

Results: From the bioactive fraction of S. acmella extract, TLC indicated the presence of an aromatic quinone, which was identified using GC–MS as a quinoline derivative (2,2,4-trimethyl-1,2-dihydroquinoline having a retention time of 24.97 min and chemical formula of C12H15N). The quinoline-rich fraction showed concentration-dependent activity against R. tetragona as that of albendazole. Scanning electron microscopy of the treated cestode revealed classic anthelmintic effects such as tegumental shrinkage and damage of surface organs. The scolex was shrunk, suckers were degenerated with disintegrated spines, and rostellum was completely collapsed. There were severe damages on the tegument and formation of pit-like scars on the proglottids.

Conclusion: The efficacy of S. acmella extract and structural damages it caused on the cestode indicates that it is a potential source of anthelmintic agent and that 2,2,4-trimethyl-1,2-dihydroquinoline contributes to its antiparasitic activity.

Keywords: cestode, helminthiasis, quinoline, Spilanthes acmella, tegument.

Efficacy and safety of ethanolic Curcuma longa extract as a treatment for sand tampan ticks in a rabbit model

Research (Published online: 29-04-2020)

30. Efficacy and safety of ethanolic Curcuma longa extract as a treatment for sand tampan ticks in a rabbit model

Sobhy Abdel-Shafy, Abdullah D. Alanazi, Hanan S. M. Gabr, Ahmad M. Allam, Hala A. A. Abou-Zeina, Ragab A. Masoud, Doaa E. Soliman and Mohammad Yahya Alshahrani

Veterinary World, 13(4): 812-820

Background and Aim: The soft tick Ornithodoros savignyi is distributed throughout Africa, including Egypt. It primarily attacks camels, cattle, donkeys, and cows; and rarely affects humans. This study evaluated the acaricidal efficacy of ethanolic Curcuma longa extract (Turmeric) on the second nymphs of O. savignyi and then investigated the safety of this herb in rabbits.

Materials and Methods: The nymphs were immersed in 10, 5, 2.5, 1.25, and 0.625 mg/ml ethanolic C. longa extract. An additional group was immersed in ethanol as a control. On the 1st, 7th, and 15th-day post-treatment, the mortality percentages, LC50 and LC95 were calculated. The ticks exposed to 10 mg/ml ethanol C. longa extract were investigated by scanning electron microscopy (SEM). Three male New Zealand White rabbits were orally administered 2 ml (two doses) of 10 mg/ml ethanolic C. longa extract, and another three rabbits were orally given two doses of 2 ml of absolute ethanol as a negative control. Histopathological examination of the kidney and liver hematology and the kidney and liver function was performed. Chemical analysis of the extract was determined by gas chromatography-mass spectrometry (GC-MS).

Results: The LC50 and LC95 were 1.31 and 15.07, 1.07 and 8.56, and 0.81 and 6.97 mg/ml on the 1st, 7th, and 15th day, respectively. SEM revealed that mamillae and spots on the surfaces of the treated ticks were not discriminating except for some clefts on the surfaces. The histological examination, blood profile, and biochemical analyses revealed no significant differences between the treated and untreated rabbits (p>0.05). GC/MS analysis revealed 50 compounds, and curcumene and t umerone were found to be the major constituents of this ethanolic extract.

Conclusion: The ethanolic C. longa extract produced a strong acaricidal effect on the second nymph of O. savignyi, and it was safe to use in rabbits.

Keywords: histopathology, scanning electron microscopy, soft ticks, tick control, turmeric.

Normal reference ranges of ocular physiology and sonographic biometry of Latvian Hunting dogs

Research (Published online: 28-04-2020)

29. Normal reference ranges of ocular physiology and sonographic biometry of Latvian Hunting dogs

Līga Kovaļčuka and Gundega Mūrniece

Veterinary World, 13(4): 807-811

ABSTRACT

Background and Aim: The Latvian Hunting dog is the only national dog breed in Latvia and so far, there are no data on the important ophthalmological data pertaining to clinical tests and ocular biometry. The aim of this study was to improve the ocular examination and to document normal reference ranges of the globe axial length (AXL), anterior chamber depth (ACD), lens thickness (LT), intraocular pressure (IOP), and Schirmer tear test (STT).

Materials and Methods: Sixteen Latvian Hunting dogs (32 eyes) of varying age and sex were included in this study. All dogs underwent an ophthalmic examination followed by tear production (STT) and IOP (TonoVet®) measurements. Biometric examination using A-mode ultrasonography was done under topical corneal anesthesia using 0.5% proparacaine hydrochloride. The eyes were scanned using A-mode ultrasonography with a 10 MHz transducer by transcorneal approach. The reference values of IOP, STT, AXL, ACD, and LT are expressed as mean ± standard deviation (SD).

Results: Statistical analysis using the SPSS v.23 and Microsoft Excel 2013 showed no statistically significant differences between the right and left eyes for either of the tests. The mean±SD value of STT and IOP values was 20.9±3.2 mm/min and 17.7±3.2 mmHg, respectively. The mean±SD of the AXL, ACD, and LT obtained by A-mode ultrasound was 2.21±0.1 cm, 0.35±0.1 cm, and 0.42±0.06 cm, respectively.

Conclusion: This study documents the normal reference ranges of important ophthalmological clinical tests (IOP and STT) and ocular biometry (AXL, ACD, and LT) in Latvian Hunting dogs.

Keywords: anterior chamber depth, axial length, intraocular pressure, Latvian Hunting dogs, lens thickness, Schirmer tear test.

Assessment of the nutritive value of corn stover and king grass in complete feed on Ongole steer calves productivity

Research (Published online: 28-04-2020)

28. Assessment of the nutritive value of corn stover and king grass in complete feed on Ongole steer calves productivity

Ronny Agustinus Victor Tuturoong, Sjenny Sutryaty Malalantang and Sony Arthur Ely Moningkey

Veterinary World, 13(4): 801-806

ABSTRACT

Aim: This study aimed to assess the nutritional values of corn stover and king grass (Pennisetum purpupoides) in complete feed on the productivity of male Ongole steer calves.

Materials and Methods: This study was conducted in two steps: Cattle adaptation and data collection. Cattle adaptation was carried out for 2 weeks, and the cattle were fed the experimental feed. The experimental feed was formulated into five combinations: R1 (50% king grass); R2 (12.5% corn stover +7.5% king grass 50% concentrate); R3 (25% corn stover+25% king grass); R4 (37.5% corn stover+12.5% king grass); and R5 (50% corn stover). All experimental feeds were added with 50% concentrate. Data were collected in five intervals, and each interval was of 4 weeks. In every interval, weight gain and digestibility were measured every day, beginning from the 4th week by collecting feces. Dry matter (DM), organic matter (OM), crude protein (CP) digestibility, neutral detergent fiber (NDF), acid detergent fiber (ADF), body weight gain, and feed conversion data were analyzed.

Results: R4 and R5 treatment significantly increased (p<0.05) the feed nutritional value and weight gain of male Ongole steer calves. Interestingly, treatment with R4 had the maximum increase (p<0.05) on the digestibility value of each variable: DM, 68.85%; OM, 71.89%; CP, 73.90%; NDF, 59.10%; ADF, 55.35%; and weight gain, 0.61/gr/day.

Conclusion: R4 treatment found to be the best nutritional value for improving the productivity of male Ongole steer calves.

Keywords: complete feed, corn stover, king grass, Ongole breed.

Effect of mangosteen (Garcinia mangostana L.) peel extract as an antibiotic growth promoter on growth performance and antibiotic resistance in broilers

Research (Published online: 27-04-2020)

27. Effect of mangosteen (Garcinia mangostana L.) peel extract as an antibiotic growth promoter on growth performance and antibiotic resistance in broilers

Okti Herawati, Tri Untari, Marla Anggita and Sidna Artanto

Veterinary World, 13(4): 796-800

ABSTRACT

Background and Aim: Antibiotic resistance poses a risk to human health and has therefore been the focus of research. One of the causes of this resistance is the use of antibiotics as feed additives for animal nutrition. The development of antibiotic resistance in poultry through nutrition feed has drawn attention to the need for alternative antibiotic growth promoters (AGPs). Mangosteen (Garcinia mangostana L.), as a natural source of bioactive phytochemicals, is a potential AGP, but the effect of mangosteen-based treatment on antibiotic resistance in poultry has not been reported to date. Therefore, the aim of this study was to evaluate the effects of mangosteen peel extract as an AGP on body weight gain, feed conversion rate (FCR), and the antibiotic resistance in broilers.

Materials and Methods: In this study, 30 1-day-old broiler chicks were divided into three groups. Group A (control) was not administered any treatment in the feed, Group B was treated with 0.3 g/kg colistin as the AGP in the feed, and Group C was treated with 2% mangosteen peel extract as the AGP in the feed; the treatments were administered for 30 days. The observed parameters included the effect of the treatments on body weight gain, feed intake, FCR, and the presentation of antibiotic resistance before and after the treatments (pre-treatment and post-treatment, respectively).

Results: Post-treatment, the body weight gain, and feed intake in the broilers were not significantly different among all the groups; however, the body weight gain and FCR were significantly different between the control group and the treatment groups in the 3rd week of treatment and were not significantly different between Groups B and C. The rate of antibiotic resistance to chloramphenicol increased significantly by 40% in Group B post-treatment, but no such increase was observed in Groups A and C.

Conclusion: The findings of our study indicate that compared with using colistin as an AGP using mangosteen peel extract as a natural AGP did not have any significantly different effect on body weight gain, feed intake, and FCR (p>0.05) but had a significantly different effect on the rate of antibiotic resistance in broilers (p<0.05). This study indicates the usefulness of mangosteen for improving the overall growth and production performance of broilers without increasing their antibiotic resistance.

Keywords: antibiotic resistance, antibiotics, broiler, growth promoters, mangosteen.

Effects of using essential oil of Lavandula stoechas in quail feed on growth performance, carcass characteristics, meat quality, and health status

Research (Published online: 26-04-2020)

26. Effects of using essential oil of Lavandula stoechas in quail feed on growth performance, carcass characteristics, meat quality, and health status

Ouafa Laghouati, Fodil Arbouche and Yasmine Arbouche

Veterinary World, 13(4): 789-795

Aim: The aim of this study was to determine the effects of essential oil of Lavandula stoechas (Lavender) on growth performance, carcass characteristics, meat quality, and health status of quails.

Materials and Methods: A group of 600 1-day-old Japanese quail chicks (Coturnix japonica), with an average weight of 6.8±0.2 g and a 1:1 sex ratio, were randomly assigned to four groups (150 chicks/group): three experimental groups which depend on the incorporation of lavender oil (LO) in the different phases of breeding and one control group. The experimental groups received a supplement of 1 g LO per kg of feed distributed sequentially throughout the entire 42-day breeding period.

Results: No deaths were recorded throughout the breeding period. Highly significant differences were observed among the groups with regard to body weight measured on day 20 and day 42 (p<0.001 and p<0.01, respectively). The addition of LO was accompanied by reductions in liver weights; furthermore, LO had a significant effect on the pH, water content, and fat content of the meat (p<0.05). Administration of LO had a measurable effect on the endogenous intestinal population of Lactobacillus, and the bacterial load (including those of Escherichia coli and Staphylococcus aureus) was significantly reduced.

Conclusion: Our results demonstrate that supplementing quail feed with LO has a profound effect on their growth as well as antimicrobial effects.

Keywords: fat content, Japanese quail, lavender oil, microbial load, water content, zootechnical performance.

Lice infestation and diversity in turkeys (Meleagris gallopavo) in the Special Region of Yogyakarta and Central Java, Indonesia

Research (Published online: 25-04-2020)

25. Lice infestation and diversity in turkeys (Meleagris gallopavo) in the Special Region of Yogyakarta and Central Java, Indonesia

Joko Prastowo, Dwi Priyowidodo, Wisnu Nurcahyo, Defriana Lutfi Chusnaifah, Lu'lu' Sahara Wusahaningtyas, Lintang Winantya Firdausy and Ana Sahara

Veterinary World, 13(4): 782-788

ABSTRACT

Background and Aim: Biting lice (Phthiraptera: Amblycera and Ischnocera) are ectoparasites that play important roles in the transmission of disease agents that infect turkeys and impact turkey productivity. This study aimed to determine the diversity of lice that infest turkeys in the Central Java Province and the Special Region of Yogyakarta, Indonesia.

Materials and Methods: Lice sampling was conducted at 16 different locations from April 2019 to June 2019 in turkeys aged 4 months to 2 years. The samples were stored in 70% alcohol and were identified using avian louse keys. The morphology of the specimens was macroscopically and microscopically evaluated, and the resulting data were descriptively and qualitatively analyzed.

Results: A total of 2505 lice were collected, and two families and five genera of lice were identified. Three lice genus members of the Philopteridae family (Lipeurus, Oxylipeurus, and Chelopistes) and two genera of the Menoponidae family (Colpocephalum and Menacanthus) were identified. Lipeurus was the most frequently identified genera in turkeys, whereas Menacanthus was the most rarely identified one. The White Holland breed had the highest number of lice infestations, whereas the Jersey Buff breed exhibited the highest diversity of lice genera. The average number of lice infestations was higher in male turkeys than in female turkeys.

Conclusion: The occurrence of ectoparasites in domestic turkeys indicates that the existence and diversity of lice genera in the study location can be influenced by turkey type, turkey maintenance system, enclosure sanitation measures, lack of strategic ectoparasite control, and environmental factors.

Keywords: central java, lice, Phthiraptera, turkey, Yogyakarta.

Clinical and structural changes in reproductive organs and endocrine glands of sterile cows

Research (Published online: 24-04-2020)

24. Clinical and structural changes in reproductive organs and endocrine glands of sterile cows

Evgeny Skovorodin, Ravil Mustafin, Svetlana Bogoliuk, George Bazekin and Valian Gimranov

Veterinary World, 13(4): 774-781

ABSTRACT

Aim: The study aimed to determine both macroscopic and microscopic changes in the reproductive organs of sterile cows.

Materials and Methods: Careful clinical and gynecological examinations (using histological and histochemical methods) of organs of culled sterile cows, such as ovaries, oviducts, the uterus, pars anterior adenohypophysis, thyroid body, and adrenals, were performed.

Results: It was found that 20% of the examined cows in the farms of the Republic of Bashkortostan had pathology of reproductive organs. Ovarian dysfunction was diagnosed in 31% of sterile cows. Histological and histochemical studies revealed that high atresia of all types of ovarian follicles is associated with hypofunction of the ovaries. This was related to stromal vascular dystrophy and was accompanied by atrophy of thecal endocrine elements, resulting in decrease of endocrine and generative function of ovaries.

Conclusion: Essential elements of the ovarian dysfunction pathogenesis are disorders of the functional system "ovary-pituitary-adrenal-thyroid gland" and the abnormality of utero-ovarian relationships, which differ significantly during hypofunction, in case of follicular cysts, and in case of persistent corpora lutea. This difference in abnormalities of utero-ovarian relationships should be considered when developing diagnostic and treatment methods and determining preventive measures.

Keywords: cows, endocrine glands, morphology, ovaries, reproductive organs, sterility.

Growth performance and hematological changes in growing pigs treated with Cordyceps militaris spent mushroom substrate

Research (Published online: 23-04-2020)

23. Growth performance and hematological changes in growing pigs treated with Cordyceps militaris spent mushroom substrate

Waewaree Boontiam, Chalong Wachirapakorn and Suchat Wattanachai

Veterinary World, 13(4): 768-773

ABSTRACT

Aim: This study was aimed to compare the efficacy of dietary Cordyceps militaris spent mushroom substrate (CMS) on growth performance, immunity, metabolic profiles, and antioxidant capacity in growing pigs.

Materials and Methods: Seventy-two crossbred growing pigs (Duroc×Landrace×Yorkshire) with an average initial body weight (BW) of 25.78±0.33 kg were allotted into two dietary treatments in six pens (six growing pigs each). Dietary treatments were (i) control and (ii) supplemented group with 2 g/kg CMS.

Results: Growing pigs fed with 2 g/kg CMS showed improvements in final BW (p=0.034) and average daily weight gain (p=0.039). Moreover, there were positive changes in immunoglobulin A (p=0.013), immunoglobulin G (p=0.019), total antioxidant capacity (p=0.001), and glutathione peroxidase activity (p=0.003), whereas decreased leukocyte percentage (p=0.002), cholesterol (p=0.023), and malondialdehyde (MDA) concentrations (p=0.002) were noted in the CMS supplemented treatment. Average daily feed intake, gain-to-feed ratio, glucose, aspartate aminotransferase, triglyceride, high-density lipoprotein, and low-density lipoprotein were unaffected by the treatments.

Conclusion: Supplementation of CMS at 2 g/kg of diet increases growth performance, immunoglobulin secretion, and antioxidant capacity, whereas it lowers leukocyte percentage, cholesterol, and MDA concentrations in growing pigs.

Keywords: antioxidant capacity, blood metabolites, Cordyceps militaris spent substrate, growing pigs, growth performance, immunoglobulins.

Molecular identification of Salmonella Typhimurium from village chickens based on invA and spvC genes

Research (Published online: 23-04-2020)

22. Molecular identification of Salmonella Typhimurium from village chickens based on invA and spvC genes

Mwanaisha Mkangara, Ernest R. Mbega and Musa Chacha

Veterinary World, 13(4): 764-767

ABSTRACT

Aim: This study aimed to identify Salmonella enterica serovars by polymerase chain reaction (PCR) based on virulence genes invasion A (inv A) and Salmonella plasmid virulence C (spvC).

Materials and Methods: DNA extraction of eight bacteria isolates was done using the PowerSoil® DNA Isolation Kit. The amplification of invA and spvC genes was done using conventional PCR. The positive PCR products were purified using the GeneJET Purification Kit and then sequenced using ABI 3730 XL automated genetic analyzer. The sequences obtained were compared for similarities with other Salmonella serovars deposited on the NCBI GenBank using BLASTN.

Results: Four out of eight samples were amplified by primers FS139/RS141 that target invA gene with products of about 284 bp, and three out of four of the same invA positive samples were also amplified by primers FSPV-1/RSPV-2 targeting spvC with a product of about 571 bp. One sample was not amplified by primers FSPV-1/RSPV-2 as it lacked virulence plasmid. Analysis of sequences indicated 100% homology with closely related serovars of S. enterica subspecies enterica serovar Typhimurium.

Conclusion: Salmonella Typhimurium that contained invA and spvC genes are pathogenic and virulent strains.

Keywords: invasive gene A, polymerase chain reaction, Salmonella plasmid virulence gene, Salmonella Typhimurium, sequencing.

Clinical results of an inactivated anti-brucella vaccine in combination with immunomodulators

Research (Published online: 22-04-2020)

21. Clinical results of an inactivated anti-brucella vaccine in combination with immunomodulators

Fayssal Bouchemla, Valery Alexandrovich Agoltsov, Stepan Yuryevich Veselovsky, Sergey Vasilyevich Larionov, Olga Mikhaylovna Popova and Dmitry Valentinovich Krivenko

Veterinary World, 13(4): 758-763

ABSTRACT

Aim: The aim of the study was to obtain a vaccine against animal brucellosis having high immunogenic properties by carrying an evaluation of the effectiveness of split-conjugated animal brucellosis vaccine combined with fosprenil and polypeptide C as a molecular immunomodulatory adjuvant according to the results of serological studies of the blood of animals: Agglutination reaction, complement fixation, and rose Bengal sample.

Materials and Methods: Eighteen calves of Holstein Friesians breed, aged 5 months, with a living weight of 100-150 kg, were divided into three groups of six animals each. All animals were healthy and they received a prophylactic vaccination against brucellosis. The dry split-conjugated vaccine against brucellosis in animals was dissolved in saline and for this purpose, 10 ml of saline was poured into the vaccine vial. Then the content was mixed, and afterward 1 ml was used per animal. Fosprenil was used at the rate of 1 kg of animal weight: 100 kg (calf weight) was multiplied by 0.05 (dose/1 kg of animal weight); 5 ml of fosprenil was obtained, which was collected into disposable syringes and intramuscularly sterilely injected into the croup area.

Calves in the first group (control) were intramuscularly injected with the vaccine at a dose of 1.0 ml, and fosprenil at a dose of 5.0 ml was administered intramuscularly once to the croup area. Animals from the second group were subcutaneously immunized by the vaccine with polypeptide C at a dose of 1.0 ml. Polypeptide C is a solution that was poured into a vial with a vaccine at a dose of 10.0 ml, the content was mixed, and then calves were injected subcutaneously into the middle third of the neck in 1 ml (10 doses in a vial).

Immunization of calves in the third group was carried out with a vaccine, diluted with an isotonic sodium chloride solution of 0.9%, at a dose of 1.0 ml subcutaneously once. At the 14th, 30th, and 90th days after vaccination, a blood sampling was taken for serological tests: Agglutination test, complement fixation test, and rose Bengal test.

Results: After conducting serological studies, it was noted that split-conjugated vaccine against animal brucellosis using fosprenil forms antibodies in large titers and they persist for a longer time in the body of animals compared to the other tested vaccine: The first combination with the immunomodulatory polypeptide C and the vaccine only on the physiological solution.

Conclusion: The developed complex of split-conjugated vaccine against brucellosis in animals enhances the humoral immune response of the organism against brucellosis and improves the protection of animals against the disease when it is used with the immunomodulatory fosprenil. In the future, we want to expand the use of the resulting complex in the fight against brucellosis on a larger population and to study the change in cellular immunity after the introduction of the resulting complex on an animal organism.

Keywords: brucellosis, fosprenil, polypeptide C, split-conjugated vaccine against animal brucellosis.

Response of hemocytes profile in the black tiger shrimp (Penaeus monodon) against Vibrio harveyi induced by Xylocarpus granatum leaves extract

Research (Published online: 22-04-2020)

20. Response of hemocytes profile in the black tiger shrimp (Penaeus monodon) against Vibrio harveyi induced by Xylocarpus granatum leaves extract

Gina Saptiani, A. Syafei Sidik, Fikri Ardhani and Esti Handayani Hardi

Veterinary World, 13(4): 751-757

Aim: The present study investigated hemocytes profile of black tiger shrimp (Penaeus monodon) induced with Xylocarpus granatum leaves extract to protect against Vibrio harveyi infection.

Materials and Methods: X. granatum leaves were chopped into small size, air-dried, and extracted with one of the following solvents: Ethanol, distilled water, and seawater, whereas each solvent was given in three different concentrations (750 ppm, 1.000 ppm, and 1.250 ppm, respectively). Extracts were induced to 60 post-larvae shrimp in each treatment (three replicates, 20 shrimp for each) by immersing method and subsequently challenged with V. harveyi.

Results: This study demonstrated different effectiveness among solvents used to extract X. granatum leaves, in which distilled water showed the most effective solvent as can be seen from the lowest percentage on anorexia, lethargic, and weakened reflex of shrimp compared with another solvent, positive and negative controls. Pathological symptoms for shrimp induced by X. granatum leaves extract were minimum with the highest survival rate compared with those of positive and negative control. Total hemocyte cells and its cell constituents such as semi-granular, granular, and hyaline cells on treatment group at 1.250 ppm were higher than controls.

Conclusion: Leaves extract of X. granatum extract effectively inhibited V. harveyi infection, increased survival rate, and hemocytes cell of the experimental shrimp. Distilled water extract of X. granatum at 1.250 ppm demonstrated the highest protective effect toward V. harveyi infection on P. monodon.

Keywords: hemocytes profile, mangrove plant extract, Penaeus monodon, Vibrio harveyi, Xylocarpus granatum.

Recombinant bovine somatotropin in the synchronization of ovulation in crossbred dairy cows (Bos taurus indicus × Bos taurus taurus)

Research (Published online: 21-04-2020)

19. Recombinant bovine somatotropin in the synchronization of ovulation in crossbred dairy cows (Bos taurus indicus × Bos taurus taurus)

Fabrício Albani Oliveira, Ítalo Câmara de Almeida, Larissa Marchiori Sena, Jurandy Mauro Penitente-Filho and Ciro Alexandre Alves Torres

Veterinary World, 13(4): 746-750

ABSTRACT

Aim: The aim of this study was to evaluate the effects of the administration of recombinant bovine somatotropin (rbST) at the moment of implementation of the timed artificial insemination protocol, on follicular dynamics and pregnancy rate in crossbred cows.

Materials and Methods: A total of 346 cows were used in two experiments with a factorial 2×2 design. The cycling cows (Tcycling) and the anestrous cows (Tanestrous) were considered as factor 1 and the administration of rbST (TrbST) or not (Tcontrol) as factor 2. The experimental protocol: (1) Tcontrol – day 0 (D0), insertion of a progesterone-release intravaginal device (PRID) plus 2 mg of estradiol benzoate (EB); D8, PRID removal, plus 0.150 mg of prostaglandin F2α, and 400 IU of equine chorionic gonadotropin; D9, 1 mg of EB; and with artificial insemination at day 10; (2) TrbST – similar to Tcontrol plus 500 mg of rbST on D0. In experiment I, ultrasound examinations were performed in all treatments. In experiment II, the cows' pregnancy rate was evaluated. Data were analyzed with 5% probability.

Results: There was no effect of the protocols on cows cyclicity or follicular growth rate (p>0.05). There was no interaction of the effects, administration of rbST, and the cyclicity of cows on the pregnancy rate. The total pregnancy rate observed was 49.0%. The pregnancy rate in cows receiving rbST was lower for anestrous compared with cycling cows (p<0.05).

Conclusion: The administration of rbST did not alter the patterns of follicular dynamics nor the ovulation rate. However, cows in anestrous that received rbST had lower pregnancy rates than cycling cows.

Keywords: biotechnology, dairy cows, fertility, follicle, reproduction.

Epidemiological and molecular studies on Echinococcus granulosus from free-roaming dogs in Southeast Iran

Research (Published online: 20-04-2020)

18. Epidemiological and molecular studies on Echinococcus granulosus from free-roaming dogs in Southeast Iran

Alireza Keyhani, Iraj Sharifi, Mehdi Bamorovat, Mohammad Ali Mohammadi, Asma Askari, Mohammad Ebrahimipour and Majid Fasihi Harandi

Veterinary World, 13(4): 739-745

ABSTRACT

Background and Aim: Cystic echinococcosis (CE), as a major zoonotic helminth infection, imposes remarkable socioeconomic burden on many endemic countries across the world, including Iran. Due to the high importance of free-roaming dogs in the transmission of CE, epidemiological and molecular studies in this type of hosts are required in the endemic regions. This study aimed to investigate the epidemiology and genotyping of Echinococcus granulosus isolated from stray dogs in Kerman, Southeast Iran.

Materials and Methods: Eighty-four samples were isolated from stray dogs in the city and suburbs of Kerman in coordination with the health authorities and the municipality office for rabies control and dog population management. Dog demographic data, including age and sex were collected. The worm was isolated by necropsy and genomic DNA was extracted and partial cytochrome c oxidase subunit 1 gene was amplified using specific primers. Phylogenetic and Templeton-Crandall-Sing (TCS) network analyses were carried out on the sequence data.

Results: The overall prevalence of CE in the surveyed dogs was 10.7% (9/84 cases). Out of 84 stray dogs, 33 (39.3%) and 51 (60.7%) cases were male and female, respectively. There was not a statistically significant difference between the infection and gender of dogs. However, infection is shown more in dogs under one year of age with a statistically significant difference (p<0.05). The results of molecular studies indicated E. granulosus G1 genotype for all isolates. The high presence of free-roaming dogs in urban and peri-urban areas and high frequency of parasite in this animal is a risk factor for humans in the region. Haplotype sequence analysis on the dog isolates revealed a close relationship with other E. granulosus isolates in Kerman.

Conclusion: The findings of this study provide evidence-based data about the epidemiological and molecular characteristics of CE in dog definitive hosts of Southeast Iran. Further studies are required to understand the prevalence and parasite genotypes in dogs in Iran.

Keywords: echinococcosis, free-roaming dogs, genotype, haplotype network, hydatid cyst, Iran.

Left ventricular myocardial remodeling in dogs with mitral valve endocardiosis

Research (Published online: 20-04-2020)

17. Left ventricular myocardial remodeling in dogs with mitral valve endocardiosis

Yury A. Vatnikov, Andrey A. Rudenko, Boris V. Usha, Evgeny V. Kulikov, Elena A. Notina, Irina A. Bykova, Nadiya I. Khairova, Irina V. Bondareva, Victor N. Grishin and Andrey N. Zharov

Veterinary World, 13(4): 731-738

ABSTRACT

Background and Aim: Left ventricular myocardial remodeling could play an important role in the progression of chronic heart failure (CHF) syndrome in dogs with mitral valve endocardiosis. The aim of this study was to evaluate the left ventricular myocardial remodeling in dogs with mitral valve endocardiosis and to study the dependence of the incidence of this pathological phenomenon on the functional class (FC) of progression of the CHF syndrome.

Materials and Methods: A total of 108 afflicted dogs and 36 clinically healthy dogs were examined using transthoracic echocardiography. The following structural and geometric parameters of the left ventricular remodeling were evaluated: Myocardial mass and its index, sphericity index at the end of systole and diastole, end-systolic and end-diastolic relative wall thickness, and integral remodeling index.

Results: In all clinically healthy dogs, a normal type of the left ventricular chamber geometry was revealed, whereas, in dogs with mitral valve endocardiosis, the normal geometry of the left ventricle occurred in 56.4%, eccentric hypertrophy in 24.1%, concentric remodeling in 10.2%, and concentric hypertrophy in 9.3% of the cases. In patients with endocardiosis, there was no dilatation type of cardiac remodeling observed.

Conclusion: When compared to the clinically healthy animals, the dogs with mitral valve endocardiosis presented with indicators of structural and geometric remodeling, such as increased myocardial mass, myocardial mass index, and sphericity index at the end of systole and diastole, as well as relatively reduced integral systolic index of remodeling and systolic relative thickness of the walls of the heart. The parameters of the left ventricular myocardial remodeling correlated significantly with the FC of CHF syndrome.

Keywords: dogs, endocardiosis, heart failure, mitral regurgitation, myocardial remodeling.

In vitro assessment of time-dependent changes in red cell cytoplasmic antioxidants of donkey blood preserved in citrate phosphate dextrose adenine 1 anticoagulant

Research (Published online: 19-04-2020)

16. In vitro assessment of time-dependent changes in red cell cytoplasmic antioxidants of donkey blood preserved in citrate phosphate dextrose adenine 1 anticoagulant

Okereke Henry Nnamdi, Udegbunam Rita Ijeoma, Nwobi Lotanna Gilbert, Ezeobialu Henry Toochukwu and Udegbunam Sunday Ositadinma

Veterinary World, 13(4): 726-730

ABSTRACT

Background and Aim: Stored blood is continuously exposed to oxidative stress, which affects its antioxidant protective system. Erythrocytes are naturally armed with antioxidant protective capacity. Blood antioxidant system functions to protect the blood cells against oxidative damage by free radicals. However, during storage, blood is continuously exposed to oxidative stress, which affects its antioxidant system. The aim of this work was to investigate alteration in malondialdehyde (MDA) levels, reduced glutathione (glutathione reductase [GSH-Rd]), catalase (CAT), and superoxide dismutase (SOD) activities in stored donkey blood.

Materials and Methods: Blood (250 ml) was drawn from four clinically healthy donkeys into citrate phosphate dextrose adenine 1 blood bags and preserved at 4°C. MDA, GSH-Rd, CAT, and SOD activities were assayed by colorimetric methods, over a period of 42 days.

Results: The result showed that SOD enzyme activities significantly (p<0.05) increased by day 7 post-storage (PS) while MDA levels significantly (p<0.05) increased by day 21 PS. However, activities of GSH-Rd and CAT enzymes decreased (p<0.05) by day 21 PS. Pearson's product-moment correlation showed a negative correlation between the levels of MDA and enzymatic antioxidant markers (CAT and GSH-Rd).

Conclusion: The findings revealed that GSH-Rd and CAT are the primary antioxidant defense markers in donkey red blood cells. The observed alterations in these principal antioxidants suggest a 14 days optimum keeping time of donkey blood for blood banking purposes.

Keywords: blood, citrate phosphate dextrose adenine 1, donkey, malondialdehyde, superoxide dismutase.

Opportunistic parasitic infections in patients with human immunodeficiency virus/acquired immunodeficiency syndrome: A review

Review (Published online: 17-04-2020)

15. Opportunistic parasitic infections in patients with human immunodeficiency virus/acquired immunodeficiency syndrome: A review

D. A. Laksemi, L. T. Suwanti, M. Mufasirin, K. Suastika and M. Sudarmaja

Veterinary World, 13(4): 716-725

ABSTRACT

The number of human immunodeficiency virus (HIV) cases increases annually, and Indonesia has become the country with the fastest HIV/acquired immunodeficiency syndrome (AIDS) epidemic spread among the five Southeast Asian countries. Indonesia entered the critical phase of HIV/AIDS infections after 5 out of the 33 provinces, namely, Papua, Jakarta, Bali, West Java, and East Java, reported HIV/AIDS epidemic since 2004. In AIDS pathophysiology and immune-suppression are severe, thus, opportunistic intestinal parasitic infections that cause diarrhea in HIV infection may be fatal. Several studies have suggested that Cryptosporidium parvum, Isospora belli, and Blastocystis hominis are the most common intestinal protozoan parasites categorized as AIDS associated illness. Diarrhea caused by parasites is considerably suspected in the cases of chronic and persistent diarrhea in adults, in an era of increasing HIV/AIDS cases nowadays. The present review highlights the current advances in etiologic agents of HIV/AIDS opportunistic infections among countries, epidemiology and prevalence, lifecycle, risk factors, examination methods, and treatment.

Keywords: epidemic, immune suppression, opportunistic infection, protozoa.

Carcass and meat characteristics of male Kacang goat fattened by complete silage

Research (Published online: 17-04-2020)

14. Carcass and meat characteristics of male Kacang goat fattened by complete silage

Paulus Klau Tahuk and Gerson F. Bira

Veterinary World, 13(4): 706-715

ABSTRACT

Aim: The aim of the study was to determine the carcass and meat characteristics of male Kacang goat fattened by complete silage made from natural grass, Sorghum bicolor (L.) Moench and Pennisetum purpuphoides.

Materials and Methods: This study examined 12 young male Kacang goats aged 10-12 months with an initial body weight of 10-12 kg. The livestock was divided into three groups randomly to receive feed treatments. The three treatments of this study included T1: Complete silage made from natural grass; T2: Complete silage made from S. bicolor (L.) Moench, and T3: Complete silage made from P. purpuphoides. Data were analyzed according to the analysis of variance procedure.

Results: The carcass percentage of livestock T2 and T3 treatment was relatively similar but higher (p<0.05) than the T1 group. The non-carcass percentage of T2 and T3 was relatively the same but lower than T1. The water content of T1 treatment was higher (p<0.05) than T3, but relatively the same as T2 treatment. The collagen content of T2 and T3 was relatively the same but lower (p<0.05) than T1; likewise, the cholesterol of T2 and T3 treatments was relatively similar but higher than T1 treatment. The variables of slaughter and carcass weight, and non-carcass weight, meat protein content, acidity, cooking losses, water holding capacity, and tenderness were not significantly different between groups of animals.

Conclusion: The use of S. bicolor (L.) Moench and P. purpuphoides as a basic forage in making complete silage has been shown to increase carcass percentage, the content (%) of fat, collagen, and cholesterol. Otherwise, the treatments have no effect on the content of pH, tenderness (kg/cm2), cooking loss (%), and water holding capacity (%) of male Kacang goat fattened. Therefore, S. bicolor (L.) Moench and P. purpuphoides plants have great potential to be developed by farmers/ ranchers as feed for goats.

Keywords: carcass characteristics, chemical and physical quality of meat, complete silage, fattening, male Kacang goat.