Evaluation of crude larval protein and recombinant somatic protein 26/23 (rHcp26/23) immunization against Haemonchus contortus in sheep

Research (Published online: 08-07-2017)

8. Evaluation of crude larval protein and recombinant somatic protein 26/23 (rHcp26/23) immunization against Haemonchus contortus in sheep

Omnia M. Kandil, Khaled A. Abdelrahman, Hatem A. Shalaby, Seham H. M. Hendawy, Nadia M. T. Abu El Ezz, Somia A. Nassar and James E. Miller

Veterinary World, 10(7): 758-763

Abstract

Aim: The aim of this study was to evaluate the potential possibility of crude larval and recombinant (rHcp26/23) antigens of Haemonchus contortus for immunization to control sheep hemonchosis.

Materials and Methods: A total of 21 lambs were divided into five groups. Lambs were immunized with larval and recombinant (rHcp26/23) proteins at day 0 and day 14 and after that challenged with 5000 infective larvae of H. contortus on day 42. An unvaccinated positive control group was challenged with L3 in the meantime. An unvaccinated negative control group was not challenged.

Results: Fecal egg count reduction taking after challenge for rHcp26/23 and larval antigens was 92.2% and 38.2%, respectively, compared with the positive control group. Vaccine incited protection in rHcp26/23 and larval immunization was reflected in significant (p<0.05) decreases in worm burden; 59.9% and 40.1%, respectively.

Conclusion: Recombinant rHcp26/23 vaccine induced a partial immune response and had immune-protective effect against sheep hemonchosis.

Keywords: antigen, Haemonchus contortus, immunization, larval, rHcp26/23, sheep.

Repair of segmental radial defect with autologous bone marrow aspirate and hydroxyapatite in rabbit radius: A clinical and radiographic evaluation

Research (Published online: 07-07-2017)

7. Repair of segmental radial defect with autologous bone marrow aspirate and hydroxyapatite in 

rabbit radius: A clinical and radiographic evaluation

Kalbaza Ahmed Yassine, Benchohra Mokhtar, Hemida Houari, Amara Karim, and Melizi Mohamed

Veterinary World, 10(7): 752-757

ABSTRACT

Aim: Finding an ideal bone substitute to treat large bone defects, delayed union and nonunions remain a challenge for orthopedic surgeons and researchers. Several studies have been conducted on bone regeneration; each has its own advantages and disadvantages. The aim of this study was to evaluate the effect of a combination of hydroxyapatite (HA) powder with autologous bone marrow (BM) aspirate on the repair of segmental radial defect in a rabbit model.

Materials and Methods: A total of 36 male and adult New Zealand rabbit with a mean weight of 2.25 kg were used in this study. Approximately, 5 mm defect was created in the mid-shaft of the radius to be filled with HA powder in the control group "HA" (n=18) and with a combination of HA powder and autologous BM aspirate in the test group "HA+BM" (n=18). Animals were observed daily for healing by inspection of the surgical site, and six rabbits of each group were sacrificed at 30, 60, and 90 post-operative days to perform a radiographic evaluation of defect site.

Results: Obtained results revealed a better and more rapid bone regeneration in the test group: Since the defect was rapidly and completely filled with mature bone tissue after 90 days.

Conclusion: Based on these findings, we could infer that adding a BM aspirate to HA is responsible of a better regeneration process leading to a complete filling of the defect.

Keywords: autologous bone marrow aspirate, bone regeneration, hydroxyapatite, rabbit, radial defect.

Noninvasive assessment of gastrointestinal parasites infection in freeranging wild herbivores and adjoining livestock of Panna Tiger Reserve, Madhya Pradesh, India

Research (Published online: 06-07-2017)

6. Noninvasive assessment of gastrointestinal parasites infection in freeranging wild herbivores and adjoining livestock of Panna Tiger Reserve, Madhya Pradesh, India

Abhay Sengar, A. B. Shrivastav, K. P. Singh and Amol Rokde

Veterinary World, 10(7): 748-751

ABSTRACT

Aim: This study was conducted to know the epidemiology of gastrointestinal parasites of free-ranging wild herbivores and adjoining livestock of Panna Tiger Reserve, Madhya Pradesh, India.

Materials and Methods: A total of 374 fecal samples from wild herbivores (Chital Axis axis - 123, Sambar Rusa unicolor - 94, Nilgai Boselaphus tragocamelus - 86, and Chinkara Gazella bennettii - 71) and 284 fecal samples of domestic herbivores (cattle - 118, buffalo - 78, and goat - 88) were collected from common grazing land and adjoining area of tiger reserve. Detailed coprological examination for the presence of parasitic eggs/oocysts by direct smear examination, standard sedimentation, and floatation techniques was performed.

Results: Fecal samples (n=374) of four different species of wild herbivores were screened. Out of which, 55.61% (n=208) were positive for parasitic infection. Among them, 13.10% (n=49) were positive for mixed parasitic infection of two or more parasite and 42.5% (n=159) were found positive for single parasitic infection. A total of 284 fecal samples of domestic animals were screened from adjoining areas of the tiger reserve. Out of which, 66.54% (n=189) were positive for parasitic infections, out of which 19.71% (n=56) were positive for mixed infection of two or more parasites, and 46.83% (n=133) were found positive for single parasitic infection.

Conclusion: Wild herbivores at Panna Tiger Reserve were exposed to parasites including some that are known to be pathogenic; majority of wild animals had mixed infection of Eimeria spp., Trichuris spp., Monieziaspp., Amphistome, Strongyloides spp., Balantidium spp., and Fasciola spp.

Keywords: free ranging wild herbivores, gastrointestinal parasites, Panna Tiger Reserve.

Anti-diarrhea activity of the aqueous root bark extract of Byrsocarpus coccineus on castor oil-induced diarrhea in Wistar rats

Research (Published online: 05-07-2017)

5. Anti-diarrhea activity of the aqueous root bark extract of Byrsocarpus coccineus on castor oil-induced diarrhea in Wistar rats

Sunday A. Ejeh, Patrick Onyeyili and Samson E. Abalaka

Veterinary World, 10(7): 743-747

doi: 10.14202/vetworld.2017.743-747

Abstract

Aim: The use of traditional medicine as an alternative source of cure for many ailments has played an important role in health care delivery in both developing and developed countries. Byrsocarpus coccineus Schum and Thonn (Connaraceae) is used in traditional medicine for treatment of various disease conditions, including diarrhea. The anti-diarrhea activity of the root bark aqueous extract of B. coccineus was investigated in this study.

Materials and Methods: Acute toxicity evaluation of the aqueous extract of B. coccineus root bark was performed in exposed rats. Diarrhea was induced in exposed rats with castor oil, and the effect of the extract on castor oil-induced gastrointestinal motility and enteropooling was consequently investigated.

Results: In the acute toxicity study, the extract caused no death in treated rats nor produced signs of delayed toxicity, even at 5000 mg/kg. The aqueous root bark extract of B. coccineus also decreased the distance travelled by activated charcoal in the gastrointestinal tract of treated rats when compared to control rats. Results of castor oil-induced enteropooling revealed slight reduction in the weight of intestinal contents of treated rats compared to control rats. There was significant (p<0.05) decrease in the frequency of defecation as well as in the number of unformed feces produced by castor oil-induced diarrhea at 100 mg/kg dose with 74.96% inhibition of defecation.

Conclusion: The study demonstrated the anti-diarrheic property of the aqueous extract of B. coccineus root bark as currently exploited in our traditional herbal therapy.

Keywords: Byrsocarpus coccineus, castor oil, diarrhea, enteropooling.

Detection and characterization of pathogenic Pseudomonas aeruginosa from bovine subclinical mastitis in West Bengal, India

Research (Published online: 04-07-2017)

4. Detection and characterization of pathogenic Pseudomonas aeruginosa from bovine subclinical mastitis in West Bengal, India

S. Banerjee, K. Batabyal, S. N. Joardar, D. P. Isore, S. Dey, I. Samanta, T. K. Samanta and S. Murmu

Veterinary World, 10(7): 738-742

ABSTRACT

Aim: Subclinical mastitis in bovines is mainly responsible for the huge economic loss of the dairy farmers, of which Pseudomonas aeruginosa is one of the causative agents. The study was aimed at a screening of suspected milk samples from different cattle farms of West Bengal for detection and confirmation of P. aeruginosa strains followed by their characterization.

Materials and Methods: Around 422 milk samples were screened from different dairy farms primarily by on-spot bromothymol blue (BTB) test and then in the lab by somatic cell counts (SCC) to finally consider 352 samples for detection of P. aeruginosa. Selective isolation and confirmation of the isolates were done using selective media, viz., cetrimide and Pseudomonas agar followed by confirmation by fluorescent technique. Molecular characterization of the strains was done by polymerase chain reaction for the presence of toxA (enterotoxin A, 352 bp) and exoS (exoenzyme S, 504 bp) genes.

Results: Approximately, 371 (87.9%) samples were positive in on-spot BTB test among which 352 (94.8%) samples revealed high SCC values (more than 3 lakh cells/ml) showing infection when screened. Among these, 23 (6.5%) samples yielded typical Pseudomonas sp. isolates out of which only 19 (5.4%) isolates were confirmed to be P. aeruginosa which showed characteristic blue-green fluorescence due to the presence of pigment pyoverdin under ultraviolet light. Out of these 19 isolates, 11 isolates were positive for toxA, 6 isolates for exoS, and 2 for both these pathogenic genes.

Conclusion: Approximately, 5.4% cases of bovine subclinical mastitis infections in South Bengal were associated with P. aeruginosa which possess pathogenic genes such as toxA (63.2%) and exoS (36.8%).

Keywords: bovines, characterization, exoS, Pseudomonas aeruginosa, subclinical mastitis, toxA.

Cuticular surface damage of Ascaridia galli adult worms treated with Veitchia merrillii betel nuts extract in vitro

Research (Published online: 03-07-2017)

3. Cuticular surface damage of Ascaridia galli adult worms treated with Veitchia merrillii betel nuts extract in vitro

Ummu Balqis, Muhammad Hambal, Rinidar, Farida Athaillah, Ismail, Azhar, Henni Vanda and Darmawi

Veterinary World, 10(7): 732-737

ABSTRACT

Aim: The objective of this research was to in vitro evaluate the cuticular surface damage of Ascaridia galli adult worms treated with ethanolic extract of betel nuts Veitchia merrillii.

Materials and Methods: Phytochemical screening was done using FeCl3, Wagner and Dragendorff reagents, NaOH, MgHCl, and Liebermann-Burchard reaction test. Amount of 16 worms were segregated into four groups with three replicates. Four worms of each group submerged into phosphate buffered saline, 25 mg/ml, and 75 mg/ml crude ethanolic extract of V. merrillii, and 15 mg/ml albendazole. The effect of these extract was observed 40 h after incubation as soon as worms death. The worms were sectioned transversally and were explored for any cuticular histopathological changes in their body surface under microscope.

Results: We found that the ethanolic extract of V. merrillii betel nuts contains tannins, alkaloids, flavonoids, triterpenoids, and saponins. The ethanolic extract of betel nuts V. merrillii induces surface alterations caused cuticular damage of A. galli adult worms.

Conclusion: We concluded that ethanolic extract of betel nuts V. merrillii possess anthelmintic activity caused cuticular damage of A. galli adult worms.

Keywords: anthelmintics, Ascaridia galli, cuticle, Veitchia merrillii.

Performance of broiler chicken fed multicarbohydrases supplemented low energy diet

2. Performance of broiler chicken fed multicarbohydrases supplemented low energy diet

Kumar Govil, Sunil Nayak, R. P. S. Baghel, A. K. Patil, C. D. Malapure and Dinesh Thakur

Veterinary World, 10(7): 727-731

doi: 10.14202/vetworld.2017.727-731

Abstract

Aim: Objective of this study was to investigate the effect of multicarbohydrases supplementation on performance of broilers fed low energy diet.

Materials and Methods: A total of 75 days old chicks were selected and randomly divided into three treatments groups (T₁, T₂, and T₃); each group contained 25 chicks distributed in five replicates of five chicks each. T₁ group (positive control) was offered control ration formulated as per Bureau of Indian Standards recommendations. In T₂ group (negative control) ration, metabolizable energy (ME) was reduced by 100 kcal/kg diet. T₃ group ration was same as that of T₂ except that it was supplemented with multicarbohydrases (xylanase at 50 g/ton+mannanase at 50 g/ton+amylase at 40 g/ton). Feed intake and body weight of all experimental birds were recorded weekly. Metabolic trial was conducted for 3 days at the end of experiment to know the retention of nutrients.

Results: Significant improvement (p<0.01) was observed in total weight gain, feed conversion efficiency, and performance index in broilers under supplementary group T₃ as compared to T₁ and T₂ groups. Retention of crude protein and ether extract was significantly increased (p<0.05) in T₃ group supplemented with multicarbohydrases as compared to other groups. Retention of dry matter, crude fiber, and nitrogen-free extract was comparable in all the three groups. Significantly highest dressed weight, eviscerated weight, and drawn weight (% of live body weight) were observed in multicarbohydrases supplemented T₃ group, however it was comparable in T₁ and T₂ groups.

Conclusion: It was concluded that the supplementation of multicarbohydrases (xylanase at 50 g/ton+mannanase at 50 g/ton+amylase at 40 g/ton) in low energy diet improved overall performance of broilers.

Keywords: broiler, carcass traits, multicarbohydrases, performance.