Prevalence and bacterial etiology of subclinical mastitis in goats reared in organized farms
| Autor: | Abhishek, Vijay Kumar, Abhinab Mishra, Nitika Sharma, Dinesh K. Sharma, D.D. Singh, K. Gururaj |
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| Rok vydání: | 2018 |
| Předmět: |
Veterinary medicine
coagulase-negative Staphylococci 040301 veterinary sciences medicine.drug_class Antibiotic sensitivity Antibiotics Biology medicine.disease_cause SF1-1100 0403 veterinary science California mastitis test Antibiotic resistance SF600-1100 medicine Agar diffusion test Udder subclinical mastitis General Veterinary somatic cell count goat 0402 animal and dairy science 04 agricultural and veterinary sciences 040201 dairy & animal science Animal culture medicine.anatomical_structure Staphylococcus aureus Somatic cell count Research Article |
| Zdroj: | Veterinary World, Vol 11, Iss 1, Pp 20-24 (2018) Veterinary World |
| ISSN: | 2231-0916 0972-8988 |
| Popis: | Aim: Assessment of the status of subclinical mastitis (SCM) in Jamunapari and Barbari goats in Indian organized farms, the involvement of bacterial pathogens and their sensitivity to antibiotics. Materials and Methods: A total of 181 composite milk samples were aseptically collected from the apparently healthy Barbari (n=95) and Jamunapari (n=86) goats. The California mastitis test (CMT) and somatic cell count (SCC) were used to diagnose SCM. The milk samples with CMT scores of 0 and +1 were considered as negative, while the samples with the score of +2 or +3 were taken as positive, and further, the positive samples were used for the bacteriological examination. An antibiotic sensitivity test was performed by disk diffusion method using seven commercially available antibiotic discs. Results: All the samples having CMT score of +2 or +3 demonstrated SCC more than 1 million. Overall, the prevalence of SCM in the goats was assessed as 19.89% (36/181). The prevalence of SCM in Barbari and Jamunapari goats was found as 24.21% (23/95) and 15.12% (13/86), respectively. Out of 11 isolates of Staphylococci, 9 isolates were identified as coagulase-negative Staphylococci (CNS), whereas 2 isolates were found as Staphylococcus aureus. The identified bacterial isolates (n=30) did not show antibiotic resistance. Conclusion: The current investigation showed the considerable prevalence of SCM among Jamunapari and Barbari goats which may have a negative impact on quantity and quality of the milk. CNS was found as the most prevalent cause of SCM in the goats. Negligible antibiotic resistance was found among the identified udder pathogens. |
| Databáze: | OpenAIRE |
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