A study was undertaken to determine the prevalence of poultry diseases as well as the efficacy of challenge vaccine [ND killed (Lasota)] against Newcastle disease (ND) in commercial broiler and layer farms of Chittagong Metropolitan Area (CMA) during the period from December 2016 to February, 2017. A total of 134 birds were examined from 52 commercial broiler farms and 15 layer farms (two from each farm). The diseases of 67 farms were diagnosed based on the history, clinical signs and post-mortem findings and the efficacy of the ND killed (Lasota) vaccine was determined on the basis of hemagglutination inhibition (HI) test before and after vaccination. Sixty blood samples (20 from each of 3 broiler farms) and 48 eggs (16 from each of 3 layer farms) were collected and HI tests were performed. Among the 67 farms, the prevalence of colibacillosis, salmonellosis, necrotic enteritis, Newcastle disease, infectious bursal disease, mycoplasmosis, brooder pneumonia and mixed infections of colibacillosis and coccidiosis were 11.94%, 4.48%, 7.46%, 8.95%, 16.42%, 7.46%, 5.95% and 7.46%, respectively. Due to vaccination with ND killed (Lasota) vaccine at initial stage of infection the mortality rate reduced to zero and HI titre of the broiler farms increased as 5.40 to 7.55, 4.6 to 7.25, 4.65 to 7.70 and in the layer farms as 4.56 to 7.13, 5.0 to 7.81, 4.93 to 8.13. Due to ND challenge vaccine the initial HI titre level significantly (p<0.05) varies from post HI titer level within both broiler and layer farms.Res. Agric., Livest. Fish.5(2): 201-208, August 2018
A cross-sectional study was carried out from 13th January to 15thMarch 2015 in the Upazilla Veterinary Hospital of the Sadar Upazilla under Faridpur District to estimate the dog bites, rabies, and their management in different livestock and pet animals registered for treatment. A prototype questionnaire was used to obtain the necessary information from the owners of the animals observed. Out of the total 170 animals diagnosed and treated based on gross lesion and history, 24, 13, 133 were cattle, dogs, and goats, respectively. The proportion positive of dog bite cases was 17.4% in cattle, 20.5% in goats, and 8.3% in dogs. Among the dog bitten animals, 77.8% were Category-III (single or multiple transdermal bites or scratches, licks on broken skin) bite. The prevalence of rabies in dog bitten animals was 2.50% in dogs, 0.8% in goats and no rabies case was recorded in cattle. Post-rabies vaccine was used in 46.4%, 100% and 75.0% dog-bitten goats, cattle and dogs, respectively. The occupation and literacy of the owner, types of cattle, animal’s age, and animal source etc. showed a considerable difference in prevalence. However, none of the association was statistically significant. This baseline study might be extended with a required number of samples to identify potential risk factors for the occurrence of rabies in different animals.Res. Agric., Livest. Fish.5(2): 215-224, August 2018
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