Monday, 17 June 2019

Detection of Toxoplasma gondii antibodies in trade donkeys (Equus asinus) at Ganawuri district market, Riyom Local Government area, Plateau State, North Central Nigeria

Research (Published online: 17-06-2019)
9. Detection of Toxoplasma gondii antibodies in trade donkeys (Equus asinus) at Ganawuri district market, Riyom Local Government area, Plateau State, North Central Nigeria
Ishaku Bata Shalangwa and Shalom Byencit Kumra
International Journal of One Health, 5: 60-64
ABSTRACT
Background and Aim: Toxoplasma gondii is a parasite of public health significance due to its possible transmission to humans through ingestion of tissue cysts in raw or undercooked meat or food or water contaminated with oocysts shed by felids and transplacental transmission. This study was carried out to provide information on the possible risk of transmission through eating undercooked donkey meat by conducting a market based cross-sectional study design to determine the presence of T. gondii antibodies in trade donkeys in Ganawuri district, Riyom Local Government Area, Plateau State, North Central, Nigeria.
Materials and Methods: One hundred and thirteen serum samples were collected from trade donkeys at the market and analyzed for T. gondii antibodies using latex agglutination test (LAT). Serum samples with LAT titer >10 μl/ml were considered positive.
Results: The distribution of the donkeys based on their sources showed that greater proportions (61.1%) were from North Eastern part of the country. The study showed that 31 of the serum samples collected and analyzed were positive for T. gondii antibodies given an overall prevalence of 27.4%. The prevalence ranges between 22.2 and 33.3% across the states where the donkeys were sourced. The study showed that seropositivity increases with age (p=0.003; OR=11.8) and ranges between 12.5 and 47.2%. The prevalence did not vary significantly based on sex and source/location (p=0.494, OR=0.05; 0.920, 1.45, respectively).
Conclusion: This study showed that trade donkeys at Ganawuri district market have antibodies to T. gondii and suggest a public health risk from the consumption of undercooked donkey meat.
Keywords: antibodies, cross-sectional, donkeys, prevalence, public health, Toxoplasma gondii, trade.

Saturday, 15 June 2019

Diversity of lactic acid bacteria in dadih produced by either back-slopping or spontaneous fermentation from two different regions of West Sumatra, Indonesia

Research (Published online: 15-06-2019)
15. Diversity of lactic acid bacteria in dadih produced by either back-slopping or spontaneous fermentation from two different regions of West Sumatra, Indonesia
Chandra Utami Wirawati, Mirnawati Bachrum Sudarwanto, Denny Widaya Lukman, Ietje Wientarsih and Eko Agus Srihanto
Veterinary World, 12(6): 823-829
ABSTRACT
Aim: Dadih samples from two different origins (Kamang and Gadut in West Sumatra) manufactured with different methods (back-slopping or spontaneous fermentation) were evaluated for the diversity of lactic acid bacteria (LAB).
Materials and Methods: Four dadih samples manufactured with two different fermentation methods were obtained from Kamang and Gadut regions. Both genotypic and phenotypic characteristic (16S rRNA partial gene sequence analysis and carbohydrate fermentation profile) were used to analyze the diversity of dadih LAB population.
Results: This study showed that LAB count in back-slopping fermented dadih was one log cycle higher than spontaneous fermented dadih. LAB isolates from the two regions were divided into three genera, namely LactococcusLactobacillus, and Pediococcus. Sequencing results showed that 41.6% (five isolates) were identified as Lactococcus lactis ssp. lactis, 25% (three isolates) were identified as Lactobacillus plantarum ssp. plantarum, 16.6% (two isolates) were identified as L. lactis ssp. cremoris, and 8.3% (one isolate each) were identified as Pediococcus pentosaceus and Lactobacillus pentosus.
Conclusion: Five species were determined in back-slopping fermented dadih, i.e., L. lactis ssp. lactisL. lactis ssp. cremorisL. plantarum ssp. plantarumL. pentosus, and P. pentosaceus. On the other hand, spontaneous fermented dadih only contained three different species, namely L. lactis ssp. lactisL. lactis ssp. cremoris, and L. plantarum ssp. plantarum. This research showed that back-slopping fermentation offers greater abundance and diversity compared to spontaneous fermentation in dadih.
Keywords: back-slopping, dadih, lactic acid bacteria, spontaneous fermentation.

Friday, 14 June 2019

Phenotypic parameters affecting reproduction and production performances of dairy cattle in peri-urban of Bamako, Mali

Research (Published online: 14-06-2019)
14. Phenotypic parameters affecting reproduction and production performances of dairy cattle in peri-urban of Bamako, Mali
Abdoulaye Toure, Nicolas Antoine-Moussiaux, Fikremariam Geda, Ali Kouriba, Diakaridia Traore, Bakary Traore, Pascal Leroy and Nassim Moula
Veterinary World, 12(6): 817-822
ABSTRACT
Aim: The present study was conducted to evaluate the reproduction and production performances of crossbred and local dairy cattle in peri-urban of Bamako, the capital of Mali.
Materials and Methods: A total of 17 randomly selected households with 450 dairy cattle from four peri-urban of Bamako were individually interviewed, given register format and divided into four focus group discussions. The participants were dairy farmers and they were asked to know the phenotype that seems to them the more interesting for the reproduction and production performances of their dairy cattle.
Results: The calving interval (CI) obtained exceeded 433 days in all phenotypic types with average milk yields of 5.13±1.84 kg/day, 4.76±2.41, and 3.05±1.32 kg/day, respectively, for the Holstein crossbred, Montbeliard crossbred, and the local breeds (Zebu Peul and/or Zebu Maure). Crossbred was more productive than local breeds with significant (p<0.05) differences for lactation length, CI and total production and not significant on parity. The results also showed the advantages of the crossbred cows in terms of CI (460±80 days) compared to local zebus breeds (433±115 days) to keep the time of milking as long as possible. However, the Zebu Azawak breed whose cradle is located in Northern Mali, managed under extensive peri-urban rearing conditions, has less favorable production parameters than those of other local cattle breeds in milk production (636±43.3 kg vs. 681±41.1 kg).
Conclusion: The present study revealed that crossbred dairy cattle performed better in terms of CI, lactation length, and production compared to the local breeds. The study also showed that the local Azawak breed numerically performed less compared to the other local breeds evaluated in this study, namely, Peul and Maure.
Keywords: cattle, Mali, milk production, peri-urban, reproduction.

In vivo approach on femur bone regeneration of white rat (Rattus norvegicus) with the use of hydroxyapatite from cuttlefish bone (Sepia spp.) as bone filler

Research (Published online: 14-06-2019)
13. In vivo approach on femur bone regeneration of white rat (Rattus norvegicus) with the use of hydroxyapatite from cuttlefish bone (Sepia spp.) as bone filler
Aminatun Aminatun, Fadhilah D.E. Handayani, Prihartini Widiyanti, Dwi Winarni and Siswanto Siswanto
Veterinary World, 12(6): 809-816
ABSTRACT
Background: Hydroxyapatite (HA) from bovine bone has been widely used as bone filler in many fractures cases. HA can also be made from cuttlefish bone (Sepia spp.) that has abundant availability in Indonesia and contains 84% CaCO3, which is a basic ingredient of HA. However, research on the effects of HA from cuttlefish bone on bone regeneration parameters has not been done yet.
Aim: This study aimed to determine femur bone regeneration of white rats (Rattus norvegicus) through the use of HA from cuttlefish bone (Sepia spp.) as bone filler.
Materials and Methods: HA was made using the hydrothermal method by mixing 1M aragonite (CaCO3) from cuttlefish bone and 0.6 M NH4H2PO4 at 200°C for 12 h followed by sintering at 900°C for 1 h. In vivo test was carried out in three groups, including control group, bovine bone-derived HA group, and cuttlefish bone-derived HA group. The generation of femur bone was observed through the number of osteoblasts, osteoclasts, woven bone, lamellar bone, havers system, and repair bone through anatomical pathology test for 28 days and 56 days.
Results: Anatomical pathology test results are showed that administration of bovine bone-derived HA and cuttlefish bone-derived HA increased the number of osteoblasts, osteoclasts, woven bone, lamellar bone, havers system, and bone repair at recuperation of 56 days. Statistical test using Statistical Package for the Social Sciences with Kruskal–Wallis and Mann–Whitney U-test was resulted in significant differences between the bovine bone-derived HA control group and the cuttlefish-derived HA control group. There was no significant difference toward the indication of bone formation through the growth of osteoblasts, osteoclasts, woven bone, lamellar bone, havers system, and bone repair in the bovine bone-derived HA and cuttlefish bone-derived HA groups.
Conclusion: It can be concluded that cuttlefish bone-derived HA has the potential as bone filler based on the characteristics of bone regeneration through in vivo test.
Keywords: anatomical pathology, bone filler, cuttlefish bone (Sepia spp.), hydrothermal, hydroxyapatite.

Antibacterial efficacy of Moringa oleifera leaf extract against pyogenic bacteria isolated from a dromedary camel (Camelus dromedarius) abscess

Research (Published online: 14-06-2019)
12. Antibacterial efficacy of Moringa oleifera leaf extract against pyogenic bacteria isolated from a dromedary camel (Camelus dromedarius) abscess
Ehab Ali Fouad, Azza S. M. Abu Elnaga and Mai M. Kandil
Veterinary World, 12(6): 802-808
ABSTRACT
Background: Abscess in camel is one of the most important bacterial infections. It causes anemia and emaciation, resulting in an economic loss due to carcass condemnation and a decrease in reproductive and production efficiency.
Aim: This investigation aimed to isolate the bacteria from abscesses in camels and evaluate the antibacterial activity of Moringa oleifera extracts.
Materials and Methods: Disk diffusion method and minimum inhibitory concentration were used for the evaluation of the antibacterial activity of M. oleifera extracts against isolated bacteria from camel abscesses.
Results: The isolated bacteria were displayed relatively as follows: Corynebacterium pseudotuberculosis (30.4%), Staphylococcus aureus (25.8%), Escherichia coli (17.8%), Corynebacterium ulcerans (10.5%), Klebsiella pneumoniae (8.5%), Pseudomonas aeruginosa (8.5%), Micrococcus spp. (6.7%), Proteus vulgaris (5.2%), Citrobacter spp. (4.2%), and Staphylococcus epidermidis (1.7%). The drugs of choice for Corynebacterium isolates were ciprofloxacin and trimethoprim/ sulfamethoxazole, whereas amikacin, ciprofloxacin, gentamicin, neomycin, novobiocin, streptomycin, and vancomycin were for Staphylococcus isolates. Moreover, the ethanol extracts of M. oleifera showed higher antibacterial efficacy than the cold aqueous extracts.
Conclusion: M. oleifera is considered one of the new infection-fighting strategies in controlling pyogenic bacteria responsible for camel abscesses.
Keywords: antibacterial activity, camel abscess, Moringa oleifera, pyogenic bacteria.

Wednesday, 12 June 2019

Effect of yeast cell wall supplementation on production performances and blood biochemical indices of dairy cows in different lactation periods

Research (Published online: 13-06-2019)
11. Effect of yeast cell wall supplementation on production performances and blood biochemical indices of dairy cows in different lactation periods
Min Aung, Hiromichi Ohtsuka and Kenichi Izumi
Veterinary World, 12(6): 796-801
ABSTRACT
Aim: This experiment was conducted to determine the effect of yeast cell wall (YCW) supplementation on production performances and blood biochemical indices such as liver enzyme activities, energy metabolites, and electrolyte concentrations of dairy cows in different lactation periods (LP).
Materials and Methods: Thirty-two lactating Holstein cows were assigned into 2×2 factorial arrangement, in which the factors were the treatment (TM) (control [n=16] vs. YCW [n=16]) and the LP (early lactation [n=14] vs. mid-lactation [n=18]). The cows with day in milk (DIM) <120 (81±7 DIM) were defined as early lactating cows, whereas the cows with DIM >120 (179±5 DIM) were assumed as mid-lactating cows. The YCW (SafMannan; Phileo, Lesaffre Animal Care, France) was used as the dietary supplement (10 g/cow/day) in this experiment. The statistical analysis of the data was performed by the two-way analysis of variance using the general linear model procedure to determine the main effects (TM and LP) and their interaction (TM×LP) on production performances and blood biochemical parameters of experimental cows.
Results: No significant effects (p>0.05) of YCW supplementation on production performances and blood biochemical indices of cows in TM groups (control vs. YCW) were observed; however, some obvious effects were detected in LP (early- and mid-lactation). Milk and milk component yield of cows in early lactation were significantly higher (p<0.05) than in mid-lactation, whereas somatic cell count and milk urea nitrogen were not different (p>0.05) with the YCW supplementation. The higher level (p<0.05) of serum albumin was found in mid-lactating cows after YCW supplementation. Before the experiment, the higher (p<0.05) non-esterified fatty acid (NEFA) and NEFA/total cholesterol (T-Cho) ratio, and the lower (p<0.05) calcium (Ca) concentration were observed in early lactating cows comparison with mid-lactating cows; however, there were not different after YCW supplementation.
Conclusion: The positive effects of YCW supplementation on milk and milk component yields, energy metabolite, especially NEFA and NEFA/T-Cho ratio and Ca concentration were observed in early lactating cows rather than mid-lactating cows.
Keywords: dairy cows, electrolyte indices, energy metabolites, liver enzyme activity, milk yield, yeast cell wall.

Tuesday, 11 June 2019

Clinical and ultrasonographic investigations of 30 water buffaloes (Bubalus bubalis) with hepatomegaly

Research (Published online: 12-06-2019)
10. Clinical and ultrasonographic investigations of 30 water buffaloes (Bubalus bubalis) with hepatomegaly
A. M. Abdelaal, M. Abd El Raouf, M. A. Aref and A. A. Moselhy
Veterinary World, 12(6): 789-795
ABSTRACT
Background and Aim: Knowledge of normal ultrasonographic dimensions of the liver and associated vascular structures is an important indicator for the diagnosis of hepatic diseases. Enlargement of the liver beyond its normal dimensions is the term of hepatomegaly and ultrasonography is the primary and the suitable diagnostic technique for this condition. Therefore, this study aimed to describe the clinical and ultrasonographic findings of liver diseases causing hepatomegaly in 30 buffaloes as well as to provide a range of liver dimensions and its blood vessel measurements in normal and diseased buffaloes.
Materials and Methods: The study population included 30 buffaloes that were admitted to the clinic of the Faculty of Veterinary Medicine - Zagazig University for investigation of clinical signs associated with gastrointestinal diseases such as anorexia, chronic weight loss, and variable degrees of diarrhea or constipation. The animals were subjected to thorough clinical and ultrasonographic investigations. In addition, 10 healthy buffaloes were investigated ultrasonographically and post-slaughtering for comparison of liver dimensions and physical appearance.
Results: Three conditions causing hepatomegaly were identified in this study as multiple focal hepatic lesions, diffuse fatty liver, and hepatic congestion. Clinically, it was difficult to differentiate between each condition while ultrasonography was the ideal tool for diagnosis after comparing with necropsy as a gold standard tool. Hepatomegaly was recorded in all affected animals with a significant decrease in the size of the portal vein (PV) and caudal vena cava (CVC) in animals affected with multiple focal hepatic lesions and fatty liver disease while the size of the PV and CVC was significantly increased in buffaloes with hepatic congestion.
Conclusion: Ultrasonography can aid to accurately identify buffaloes with hepatomegaly and differentiate between different lesions involved.
Keywords: buffaloes, fatty liver, hepatic congestion, hepatomegaly, ultrasonography.

Growth performance and meat characteristics of the first filial Awassi Rambouillet callipyge ram lambs

Research (Published online: 11-06-2019)
9. Growth performance and meat characteristics of the first filial Awassi Rambouillet callipyge ram lambs
Khaleel I. Z. Jawasreh, A. H. Al-Amareen and P. Y. Aad
Veterinary World, 12(6): 783-788
ABSTRACT
Aim: This study was designed to introduce the callipyge (CLPG) and 50% of Rambouillet sheep genes to improve meat quality and quantity of Awassi (AW) sheep.
Materials and Methods: The CLPG mutation was introduced into the AW sheep through frozen semen of homozygous Rambouillet rams for the CLPG mutation. Four ram lambs from the first-generation Rambouillet callipyge Awassi (F1-RCA) and five from pure AW were recruited for a fattening trial conducted in individual pens using standard ration, following which ram lambs were slaughtered for carcass and meat evaluation.
Results: Final body weight, dry matter intake, average daily gain, and feed conversion ratio were significantly higher in F1-RCA than AW. Hot and cold carcass weights and the other carcass cuts' weights, except for the fat tail, were heavier in F1-RCA than AW. There was no difference in dressing percentage between the two genetic groups (p>0.05). All non-carcass components' weights, except spleen, kidney, and testis, were higher in F1-RCA. Total lean, total bone, and intermuscular fat weight were greater in F1-RCA, but bone-to-lean ratio was lower in F1-RCA when compared with AW (p<0.01). No differences (p>0.05) were observed in all meat quality parameters for muscle longissimus with the exception of pH, redness color, and tenderness that were lower (p<0.05) in F1-RCA than AW. F1-RCA lambs had larger longissimus muscle area (30.9 vs. 16.9 cm2) and less leg fat depth (11.1 vs. 17.4 mm).
Conclusion: The implications of this research show the potential of 50% of Rambouillet genes and the CLPG mutation to improve growth and meat characteristics in AW-Rambouillet crosses and can be used further to develop a meat-type AW with improved productivity and muscle mass.
Keywords: Awassi sheep, callipyge, carcass composition, gene introgression, growth performance.

Tumors of the reproductive tract of sheep and goats: A review of the current literature and a report of vaginal fibroma in an Awassi ewe

Research (Published online: 11-06-2019)
8. Tumors of the reproductive tract of sheep and goats: A review of the current literature and a report of vaginal fibroma in an Awassi ewe
Wael M. Hananeh, Zuhair B. Ismail and Mousa H. Daradka
Veterinary World, 12(6): 778-782
ABSTRACT
Aim: This study aimed to provide a summary of all online available literature of published clinical and histopathological data regarding tumors affecting the reproductive tract of female sheep and goats. In addition, a detailed description of the clinical history, clinical findings, and gross and histopathological findings of one case of vaginal fibroma in an adult Awassi sheep is provided for the first time.
Materials and Methods: Internet search engines such as PubMed, ResearchGate, Scopus, ScienceDirect, and Google Scholar were used to collect all published articles in refereed journals from 2000 to 2018 regarding tumors and tumor-like lesions involving the reproductive tract of ewes and does.
Results: There are six published papers in sheep and nine in goats reporting various malignant and non-malignant tumors involving different parts of the reproductive tract. The most commonly diagnosed tumors of the reproductive tract were leiomyoma (six cases), adenocarcinoma (six cases), leiomyosarcoma (three cases), adenoma (one case), squamous cell carcinoma (one case), and metastatic signet ring cell carcinoma (one case). The most common sites of tumor formation were the uterus (10 cases), vulva/vagina (five cases), ovaries (four cases), cervix (four cases), and Bartholin's gland (one case). All affected animals were aged females (older than 3 years of age). In both ewes and does, the most frequently reported clinical symptoms were chronic weight loss, pyometra, hydrometra, vaginal bleeding, abnormal vaginal discharges, straining, pollakisurie, ascites, and abdominal distension.
Conclusion: Tumors of the reproductive organs in sheep and goats are not uncommon and should be considered in the differential diagnoses in cases with poor reproductive function.
Keywords: benign tumors, malignancy, reproductive tract, small ruminants.

Evaluation on the presence of Anaplasma, Ehrlichia, and Babesia spp. in goats (Capra hircus) in Cebu, the Philippines

Research (Published online: 11-06-2019)
7. Evaluation on the presence of AnaplasmaEhrlichia, and Babesia spp. in goats (Capra hircus) in Cebu, the Philippines
Adrian P. Ybañez, Orgil V. Arrabis, Dennis Justin M. Alvarez, Eloiza May S. Galon, Rhea Mae P. Jayag, Elmie S. Delan, Rochelle Haidee D. Ybañez and Xuenan Xuan
Veterinary World, 12(6): 774-777
ABSTRACT
Background: Tick-borne diseases are caused by a wide variety of viruses, pathogens, and diseases. AnaplasmaEhrlichia, and Babesia spp. are among the most known tick-borne pathogens in Asia. In the Philippines, these pathogens were already reportedly present in dogs and large ruminants, but no study has been reported yet evaluating their presence in goats.
Aim: The present study aimed to evaluate the presence of AnaplasmaEhrlichia, and Babesia spp. in goats in Cebu, the Philippines.
Materials and Methods: A total of 100 blood samples from goats were collected in Cebu, the Philippines. Profile of sampled goats including age, body score, and sex was obtained. Peripheral blood smear examination and DNA extraction were performed. Nested polymerase chain reaction assay was used to evaluate the presence of AnaplasmaEhrlichia, and Babesia spp.
Results: None of the samples were found positive with AnaplasmaEhrlichia, and Babesia spp. infection.
Conclusion: Tested goats were negative with AnaplasmaEhrlichia, and Babesia spp. and calls for continuous surveillance of these pathogens due to the reported detection of these pathogens in other livestock animals in the area.
Keywords: Anaplasma spp., Babesia spp., Ehrlichia spp., peripheral blood smear examination, polymerase chain reaction, tick-borne diseases.

Monday, 10 June 2019

Antigen of 49.6-kDa subunit pili protein of Helicobacter pylori as a potential biomarker for early and rapid detection of the infection

Research (Published online: 10-06-2019)
6. Antigen of 49.6-kDa subunit pili protein of Helicobacter pylori as a potential biomarker for early and rapid detection of the infection
Hamong Suharsono, Zainul Muttaqin, I Wayan Masa Tenaya, Kadek Karang Agustina and Sumarno Retro Prawiro
Veterinary World, 12(6): 769-773
ABSTRACT
Background and Aim: Helicobacter pylori infection has been identified as a major cause of peptic ulcer diseases, including gastric and duodenal ulcers, gastritis, chronic and gastric carcinoma, and even gastric lymphoma. In vitro studies using Western blotting analysis, hemagglutination test, adherence inhibition assays, and immunocytochemical staining revealed that the 49.6-kDa subunit pili protein of H. pylori was considered an immunogenic protein. This study aimed to develop a serological diagnostic test using 49.6 kDa for detecting antibodies against H. pylori proteins in an early phase of the infection.
Materials and Methods: An in-house immunochromatographic test (ICT) kit was developed and used to test a panel of sera sample obtained from a randomly selected symptomatic patient, in which 40 sera were H. pylori positive and 40 sera were H. pylori negative.
Results: The results showed that ICT with 49.6 kDa as an antigen was highly sensitive and specific for detecting anti-H. pylori immunoglobulin G antibodies in human serum, with a high negative predictive value.
Conclusion: The developed test could be used to exclude H. pylori infection in symptomatic patients.
Keywords: 49.6-kDa pili protein, Helicobacter pylori, immunochromatographic test.

Friday, 7 June 2019

Seroprevalence of anti-Neospora caninum antibodies in cows of North-Eastern Algeria

Research (Published online: 08-06-2019)
5. Seroprevalence of anti-Neospora caninum antibodies in cows of North-Eastern Algeria
Kamel Miroud, Amar Benlakehal and Rachid Kaidi
Veterinary World, 12(6): 765-768
ABSTRACT
Aim: The present cross-sectional study aimed at assessing the seroprevalence of Neospora caninum infection both at herd and within herd and at determining risk factors that are associated with its seropositivity.
Materials and Methods: A total of 90 cows distributed over seven herds located in two North-Eastern Algerian provinces were blood sampled in order to be tested for the presence of antibodies against N. caninumusing a commercially available enzyme-linked immunosorbent assay kit.
Results: The individual seroprevalence of N. caninum was found to be 12.22%, and six of the seven herds tested had at least one seropositive cow. The logistic regression model revealed that abortion (odds ratio [OR]=29.15) and parity (OR=7.38) were positively associated with the seropositivity of animals on an individual basis.
Conclusion: The study confirms the existence of N. caninum infection in cattle in North-Eastern Algeria. However, a widespread infection rate of 85.71% and its significant statistical association with previous abortion (OR=29.15) need further investigations.
Keywords: cows, enzyme-linked immunosorbent assay, Neospora caninum, North-Eastern Algeria, reproduction.

The efficacy of binary ethylenimine-inactivated vaccines of Gianyar-1/AK/2014 virulent strain in protecting chickens against Tabanan-1/ARP/2017 virulent Newcastle disease virus isolates

Research (Published online: 08-06-2019)
4. The efficacy of binary ethylenimine-inactivated vaccines of Gianyar-1/AK/2014 virulent strain in protecting chickens against Tabanan-1/ARP/2017 virulent Newcastle disease virus isolates
Anak Agung Ayu Mirah Adi, I Nyoman Mantik Astawa and I Gusti Agung Arta Putra
Veterinary World, 12(6): 758-764
ABSTRACT
Aim: This study aimed to prepare binary ethylenimine (BEI)-inactivated virulent Newcastle disease virus (NDV) vaccine and to examine their ability to induce a protective antibody response in commercial chickens.
Materials and Methods: A virulent NDV field isolate Gianyar-1/AK/2014 was propagated in chicken-embryonated eggs and was then inactivated with BEI at a concentration of 4 mM. Three groups of chickens with low-level (2 log2 hemagglutination inhibition [HI] units) maternally derived antibodies against NDV were then immunized with the BEI-inactivated vaccine. A commercial live vaccine (LaSota strain) was used as positive control, and phosphate-buffered saline (PBS) was used as negative control. A challenge experiment with a virulent NDV of Tabanan-1/ARP/2017 was performed at 3 weeks post-vaccination.
Results: At 2 weeks post-immunization, the mean titers of antibodies against NDV in serum samples of chickens immunized with 0.2 mL of BEI-inactivated NDV (Group I), with live commercial NDV vaccine (Group II) and with PBS (Group III) were 3±0.94 log2 HI units, 4.9±0.99 log2 HI unit, and 0.0±0.0 HI units, respectively. At week 3 post-immunization, the mean titers of the antibodies for the three groups were 5±1.09 log2 HI units, 6.9±0.32 log2 HI units, and 0.00 HI units, respectively. The antibody titer induced by inactivated NDV Gianyar-1/AK/2014 isolates examined at 2 and 3 weeks post-vaccination was still at a significantly (p<0.01) lower level as compared to those induced by commercial life vaccine. However, the challenge test with virulent NDV of Tabanan 1/ARP/2017 isolates showed that all immunized chickens (Group I and II) survived without exhibiting any clinical sign post-challenge with the protection rates of 100%, whereas all chickens injected with PBS (Group III) died with clinical signs of ND.
Conclusion: This finding shows that the BEI-inactivated vaccines prepared using virulent NDV of Gianyar-1/AK/2014 strain was able to induce protective antibody response in chickens but still at a lower level than those induce by commercial live NDV vaccine.
Keywords: genotype VII, inactivated vaccine, live vaccine, Newcastle disease virus.

Tuesday, 4 June 2019

Slaughterhouses sustainability analysis in special capital region of Jakarta Province, Indonesia

Research (Published online: 04-06-2019)
3. Slaughterhouses sustainability analysis in special capital region of Jakarta Province, Indonesia
H. A. Sidabalok, Macfud Macfud, N. Ramli and N. K. Pandjaitan
Veterinary World, 12(6): 748-757
ABSTRACT
Aim: The objective of this research was understanding slaughterhouses sustainability and the prospection status in special region of Jakarta Province Indonesia.
Materials and Methods: The concept of sustainable slaughterhouse was formed based on social, economy, ecology, technology, and institutional dimension. Research objects were three types of slaughterhouses in Special Capital Region of Jakarta Indonesia; pig slaughterhouse, chicken slaughterhouse, and ruminant slaughterhouse. Tools used were questionnaires to assess the perception of people living around slaughterhouses, assessment of the knowledge, attitude, and practice from slaughterhouse management, along with assessment and focus group discussion for sustainability test. Methods used were descriptive analysis and sustainability test by multidimensional scaling method. Data collected consisted of primary and secondary data. Primary data were obtained by field survey, interview, questionnaire, measurement of the waste threshold, and microbe contamination, whereas secondary data were obtained from slaughterhouse agency. Data were analyzed with IBM statistical package for the social sciences (SPSS®) version 18 to calculate characteristic, variables correlation, sustainability test with Rapfish® modified into Rap slaughterhouse, and prospective analysis with PPA.
Results: The level of sustainability for pig slaughterhouse was moderately sustainable with 0.5173 index value, ruminant slaughterhouse was moderately sustainable with 0.5171 index value, and chicken slaughterhouse was moderately unsustainable with 0.4530 index value.
Conclusion: Scenario on policies that should be applied in ruminant slaughterhouse was increasing the use of waste as biogas; for chicken slaughterhouse was increasing promotion and for pig slaughterhouse was increasing product quality control. The implication of this research was to provide input based on a scientific study for the local government of Jakarta in managing the slaughterhouses.
Keywords: attitude, knowledge, practice, slaughterhouse, sustainability.

Monday, 3 June 2019

Molecular survey of zoonotic Anaplasma phagocytophilum and genetic evidence of a putative novel Anaplasma species in goats from Taif, Saudi Arabia

Research (Published online: 03-06-2019)
8. Molecular survey of zoonotic Anaplasma phagocytophilum and genetic evidence of a putative novel Anaplasma species in goats from Taif, Saudi Arabia
Mohamed W. Ghafar and Sayed A. M. Amer
International Journal of One Health, 5: 54-59
ABSTRACT
Aim: Genus Anaplasma is of veterinary and public health importance, and its members utilize ruminants as key hosts in their epidemiology. To date, information about the occurrence and molecular identity of Anaplasma phagocytophilum and other Anaplasma species in Saudi Arabian goats is scarce. This study aimed to molecularly detect and characterize zoonotic A. phagocytophilum and other Anaplasma spp. in goats from Taif District, KSA.
Materials and Methods: Blood samples collected from 67 goats were polymerase chain reaction tested using common and A. phagocytophilum-specific primers targeting 16S rRNA and msp4 genes, respectively. Amplicons of common reactions were purified, sequenced, and analyzed.
Results: Six goats yielded positive results with common primers, whereas all animals proved negative for A. phagocytophilum. Analysis of the two successfully sequenced amplicons revealed the presence of a variant strain of Anaplasma ovis (99.52% ID) and a new Anaplasma organism, which was clustered with Anaplasma bovis (95.9% ID) and Aegyptianella pullorum (94.99% ID) and distinctly separated from all other recognized species of the genus Anaplasma.
Conclusion: The tested goats proved negative for A. phagocytophilum; however, we could not confirm that the area is pathogen free. A variant strain of A. ovis and a putative novel Anaplasma spp. were reported raising the concern of veterinary and zoonotic potential. Other genes should be sequenced and analyzed for complete identification of the detected organisms.
Keywords: Anaplasma ovisAnaplasma phagocytophilum, goats, phylogeny, Saudi Arabia.

Epidemiological aspects of cutaneous leishmaniasis in Southwest of Iran

Research (Published online: 03-06-2019)
7. Epidemiological aspects of cutaneous leishmaniasis in Southwest of Iran
Mohammad Darvishi, Abedin Saghafipour, Eslam Moradi-Asl, Reza Jafari, Seyed Jafar Adnani Sadati and Hossein Darabi
International Journal of One Health, 5: 49-53
ABSTRACT
Background and Aim: Zoonotic rodents (Rodentia: Muridae: Gerbillinae) and Phlebotominae sand flies are the major reservoir hosts and vectors of Leishmania major causing zoonotic cutaneous leishmaniasis, respectively. This study was carried out to evaluate the epidemiological aspects of cutaneous leishmaniasis (CL) in Tangestan County, Southwest Iran.
Materials and Methods: This descriptive cross-sectional study was carried out on human cases, probable reservoirs, and vectors of CL at Tangestan County in 2017. The data of patients were taken on health centers and analyzed. To determination faunistic of sand flies, they were collected using sticky paper traps and identified using identification keys. The rodent samples were captured using Sherman live traps and determined for amastigote infection.
Results: A total of 436 cases occurred during 2005-2017 and the incidence rate of disease was 0.2-12/100,000 people. Six species of sand flies including three species of Phlebotomus and three species of Sergentomyiaincluding Phlebotomus papatasiPhlebotomus sergentiPhlebotomus alexandriSergentomyia tiberiadisSergentomyia baghdadis, and Sergentomyia clydei were identified. From 185 trapped rodents, 9 species were identified. We founded, 2 out of 132 Tatera indica (1.53%) were positive with Leishmania spp. using the microscopic method.
Conclusion: According to the existence of human leishmaniasis cases as a host, T. indica with high abundance and infected to Leishmania as a reservoir, and existence of P. papatasi with high abundance as a suspected vector of disease; there is a potential for transmission of disease in the area. Design of exact control and prevention strategies is highly recommended.
Keywords: cutaneous leishmaniasis, Iran, rodents, sand flies.

Saturday, 1 June 2019

Echocardiographic study of healthy Indian Spitz dogs with normal reference ranges for the breed

Research (Published online: 01-06-2019)
2. Echocardiographic study of healthy Indian Spitz dogs with normal reference ranges for the breed
Deepti Bodh, Mozammel Hoque and Abhishek Chandra Saxena
Veterinary World, 12(5): 740-747
ABSTRACT
Aim: The present study was aimed to determine the normal reference values of M-mode echocardiographic measurements in healthy Indian Spitz dogs and evaluate the influence of gender and body weight on these measurements.
Materials and Methods: M-mode echocardiography was performed in twenty-four clinically healthy conscious Indian Spitz dogs, aged 3-5 years and weighing 7-18 kg. Measurements were made from the right parasternal long axis left ventricular outflow tract view of the heart. The parameters recorded were: Left ventricular internal dimension, interventricular septal thickness and left ventricular posterior wall thickness during diastole and systole, left atrial diameter, aortic root diameter, left ventricular systolic functional parameters, and indices and mitral valve parameters.
Results: M-mode echocardiographic measurements in healthy Indian Spitz dogs were standardized. Gender had no influence on echocardiographic measurements except mitral valve excursion amplitude and time interval between onset and end of mitral valve closure, which were significantly (p<0.05) higher in females than males. Left ventricular internal dimension at end-diastole, left ventricular internal dimension at end-systole, left ventricular posterior wall dimension at end-systole, end-diastolic volume, end-systolic volume, stroke volume, cardiac output, left ventricular ejection time, and mitral valve excursion amplitude correlated significantly (p<0.05) with body weight in Indian Spitz dogs.
Conclusion: Data obtained in the present study can be used as breed-specific reference values for cardiac disease diagnosis as well as for future studies in Indian Spitz dogs.
Keywords: dogs, echocardiography, Indian Spitz, M-mode.

Immunomodulatory potential of polysaccharides from Coriolus versicolor against intracellular bacteria Neisseria gonorrhoeae

Research (Published online: 01-06-2019)
1. Immunomodulatory potential of polysaccharides from Coriolus versicolor against intracellular bacteria Neisseria gonorrhoeae
Manikya Pramudya and Sri Puji Astuti Wahyuningsih
Veterinary World, 12(5): 735-739
ABSTRACT
Background and Aim: For many years, people use natural products from the plant and fungal to improve immune response against microorganism. This study aimed to investigate the immunomodulatory properties of polysaccharides (PS) from Coriolus versicolor in mice infected by intracellular bacteria Neisseria gonorrhoeae.
Materials and Methods: Thirty-six female BALB/C mice were divided into six groups: Normal control, negative control, positive control, P1 (PS before infection), P2 (PS after infection), and P3 (PS before and after infection). PS were administrated for 10 days. N. gonorrhoeae was infected twice with 2 weeks gap from the first to second exposure with a dose of 106 cells. 1 week after the end of treatment, level of oxidants, innate immune responses, and adaptive immune responses were measured.
Results: This study showed that PS administration could restore the number of leukocytes as normal but could not enhance the number of phagocytes and its activity. PS administration also showed immunosuppression activity by lowering nitric oxide levels in P2 and P3 groups (p<0.05). This result showed that PS prevent over-expression of pro-inflammatory cytokines by decreasing phagocytic activity. Contrast with innate immune response result; PS administration could significantly increase interferon-gamma level in P1, P2, and P3 groups (p<0.05). Level of antibodies was significantly increased in the P3 group (p<0.05). PS administration also showed an increased level of tumor necrosis factor-a, but the difference was not significant (p>0.05).
Conclusion: PS enhance adaptive immunity due to the capability of N. gonorrhoeae that able to survive and replicate in phagocytes. Thus, PS from C. versicolor could be potentially be used as a natural immunomodulator against intracellular bacteria.
Keywords: immune response, immunomodulator, Neisseria gonorrhoeae, polysaccharide.