Browsing by Author "Senthilvel, Kandasamy"
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ArticleItem Open Access Detection of Sub Clinical Infection of Mycoplasma gallisepticum in Commercial Chicken by Indirect ELISA(2016-08) Udhayavel, Shanmugasundaram; Gopala Krishna Murthy, Tippichettypalayam Ramasamy; Gowthaman, Vasudevan; Senthilvel, Kandasamy; Sureshkumar, Ganesan; TANUVASChronic Respiratory disease in Poultry is mainly caused by Mycoplasma gallisepticum (MG). It causes huge economic loss to the poultry industry. The present research work has been undertaken to know the sero-prevalence of MG in commercial layers in Namakkal region of Tamil Nadu, India. A total of 103 commercial layer sera samples from 6 commercial layer farms were subjected to indirect ELISA. From 103 sera samples, overall prevalence found 53.40% for commercial layer chickens. The highest (100%) sero-prevalence of MG was recorded at 32 weeks and the lowest (0%) was recorded at 68 weeks of commercial layer chicken. This study demonstrated high sero-prevalence of MG in Commercial Layers. Therefore, routine monitoring of the commercial layer farms for MG infection should be recommended and mycoplasma control programmes must be strictly adhered.ArticleItem Open Access Occurrence of Clostridium perfringens contamination in poultry feed ingredients: Isolation, identification and its antibiotic sensitivity pattern(Elsevier, 2017) Udhayavel, Shanmugasundaram; Thippichettypalayam Ramasamy, Gopalakrishnamurthy; Gowthaman, Vasudevan; Malmarugan, Shanmugasamy; Senthilvel, Kandasamy; TANUVASThis work has been undertaken to study the occurrence of Clostridium perfringens contamination in the poultry feed ingredients and find out its in-vitro antibiotic sensitivity pattern to various antimicrobial drugs. Two hundred and ninety-eight poultry feed ingredient samples received at Poultry Disease Diagnosis and Surveillance Laboratory, Namakkal, Tamil Nadu in South India were screened for the presence of C. perfringens. The organisms were isolated in Perfringens agar under anaerobic condition and subjected to standard biochemical tests for confirmation. In vitro antibiogram assay has been carried out to determine the sensitivity pattern of the isolates to various antimicrobial drugs. One hundred and one isolates of C. perfringens were obtained from a total of 298 poultry feed ingredient samples. Overall positivity of 33.89% could be made from the poultry feed ingredients. Highest level of C. perfringens contamination was detected in fish meal followed by bone meal, meat and bone meal and dry fish. Antibiogram assay indicated that the organisms are highly sensitive to gentamicin (100%), chlortetracycline (96.67%), gatifloxacin (93.33%), ciprofloxacin (86.67%), ofloxacin (86.67%) and lincomycin (86.67%). All the isolates were resistant to penicillin-G. Feed ingredients rich in animal proteins are the major source of C. perfringens contamination.ArticleItem Open Access Seasonal Prevalence of Poultry Diseases in Namakkal District of Tamil Nadu, India(2020) Udhayavel, Shanmugasundaram; Gopala Krishna Murthy, Thippichettypalayam Ramasamy; Gowthaman, Vasudevan; Senthilvel, Kandasamy; TANUVASThe objective of the present study is to ascertain the prevalence of poultry diseases in Namakkal district of Tamil Nadu from 2011 to 2018. Necropsy examination of the sick and dead poultry birds from various poultry farms in Namakkal was carried out in Poultry Disease Diagnosis and Surveillance Laboratory (PDDSL). The diagnosis was made based on history, clinical signs, gross lesions observed during necropsy examination and by using standard microbiological techniques. During the reporting period, 20362 poultry farms were examined and a total of 35069 cases were recorded. The disease prevalence in the year 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018 was 9.04%, 12.47 %, 16.19%, 19.03%, 16.38% 8.85%, 8.40% and 9.64% respectively. The disease prevalence was high in the year 2014 (19.03%) and low in the year 2017 (8.40%). Based on Season, the disease prevalence was more in summer (34.69%) when compared to winter (33.59%) and rainy seasons (31.72%). The prevalence of egg peritonitis (12.20%), infectious laryngotracheitis (11.83%), Newcastle disease (9.56%), neoplastic viral diseases (4.34%), and colibacillosis (3.42%) was spread throughout the year. Mycotoxin induced hepatitis (4.97%), coccidiosis (2.33%) and bacterial diseases such as gangrenous dermatitis (2.95%) and necrotic enteritis (2.93%) were prevalent during the winter and rainy seasons. Heat stroke (8.90%) and Fatty liver hemorrhagic syndrome (FLHS) (2.79%) were noticed with more prevalence during the summer season.ArticleItem Open Access Sticktight flea (Echidnophaga gallinacea) infestation in desi chicken- a case report(2019-01) Udhayavel, Shanmugasundaram; Senthilvel, Kandasamy; Gopala Krishna Murthy, Tippichettypalayam Ramasamy; Gowthaman, Vasudevan; TANUVASFive numbers of 24 months old desi chicken were diagnosed with flea infestation during a clinical examination in Poultry disease diagnosis and surveillance laboratory, Namakkal. The fleas were embedded around the eyes and were identified as sticktight fleas (Echidnophaga gallinacea). The infestation was treated with manual removal of fleas combined with topical malathion dusting and environmental treatment. Subsequent recheck exams did not reveal any fleas on the affected birds or on any of the other birds housed in the same farm.