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Research
(Published
online: 06-05-2014)
4. Subclinical mastitis in machine milked
dairy farms in Punjab: prevalence, distribution of bacteria and
current antibiogram
- Abdul Q. Mir, B. K. Bansal and D. K. Gupta
Veterinary World, 7(5): 291-294
doi:
10.14202/vetworld.2014.291-294
Abdul Q. Mir: Department of Veterinary Medicine, Guru Angad
Dev Veterinary and Animal Sciences University, Ludhiana- 141 004,
Punjab, India.
B. K. Bansal: Department of Veterinary Medicine, Guru Angad
Dev Veterinary and Animal Sciences University, Ludhiana- 141 004,
Punjab, India.
D. K. Gupta: Department of Veterinary Medicine, Guru Angad
Dev Veterinary and Animal Sciences University, Ludhiana- 141 004,
Punjab, India.
Received: 21-02-2014, Revised: 24-03-2014, Accepted: 28-03-2014,
Published online: 06-05-2014
Corresponding author: B.
K. Bansal, email: baljinderbansal@rediffmail.com
Abstract
Aim: Mastitis, a complex
disease, even at subclinical stage has a major economic impact on
the dairy industry. The disease pattern at machine milking which
has recently been introduced in Indian system is to be studied.
Therefore the present study was conducted to see the prevalence,
distribution and sensitivity pattern of bacteria at subclinical
level in machine milked dairy farms in Punjab state.
Materials and Methods: The study involved 10 machine milked
dairy cow herds in Ludhiana, Patiala, Moga, Bathinda and Ferozpur
districts of Punjab. A total 218 HF × Sahiwal cross-bred dairy cow
in milk were studied. About 872 quarter foremilk samples were
collected to observe the prevalence of disease, distribution of
udder pathogens and antibiotic sensitivity pattern.
Results: Prevalence of specific subclinical mastitis was
57.80 % and 30.73% on animal and quarter basis respectively. In
specific subclinical mastitis Staphylococci (41.04%) were the main
organisms while in case of latent infections Corynebacteria
(36.81%) were found to be chief isolates. Erythromycin,
Enrofloxacin and Gentamicin were found to be most sensitive, and
Streptomycin was found to be the least sensitive in vitro
antibiotic.
Conclusion: Staphylococci were the main organisms in
specific subclinical mastitis while Corynebacteria were found to
be chief isolates in case of latent infections. Erythromycin,
Enrofloxacin and Gentamicin were found to be most sensitive, and
Streptomycin was found to be the least sensitive in vitro
antibiotic.
Keywords: antibiogram, bacterial distribution, machine
milking, prevalence, subclinical mastitis.
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