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Subclinical mastitis in crossbred dairy cows: Staphylococcus spp. and risk factors in small holder dairy farms

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Title Subclinical mastitis in crossbred dairy cows: Staphylococcus spp. and risk factors in small holder dairy farms
Not Available
 
Creator Nagappa Karabasanavar
Manjunatha, L.
Naveenkumar, G. S.
Jeevan, M. N.
Sivaraman, G. K.
 
Subject Association
Crossbred cow
PCR
Staphylococcus
Subclinical mastitis
 
Description Not Available
Subclinical mastitis (SCM) is one of the major economic diseases of dairy cows. In the present cross-sectional
study, dairy cows (n=205) of small holding dairy farms were screened using California mastitis test (CMT) and
prevalence of 12.19% was recorded. Holstein Friesian and Jersey crossbred cows showed highest CMT score of 2
followed by 3, 1 and T; linear scores of somatic cell counts (SCC) of 3.14±0.08, 4.72±0.25, 6.17±0.12, 7.99±0.11
and 9.84±0.45 were observed for CMT scores N, T, 1, 2 and 3, respectively. Risk factors associated with SCM were
studied in 25 randomly selected cows. Staphylococcus species were detected in 54% of quarters based on PCR
amplification of 16s rRNA gene; thermonuclease (nuc gene) PCR categorized Staphylococcus species as S. aureus
(SA, 37%) and non-aureus Staphylococci (NAS, 26%). Significant association between CMT score 2 and
Staphylococcus species was established. Staphylococcus species, SA and NAS, were detected in 30.7, 20.5 and
17.9% of SCM negative as well as 68.85, 47.54 and 31.14% SCM positive quarters, respectively. Significant
association between SCM and Staphylococcus species and Staphylococcus aureus was observed. Study indicated
strong association between SCM, Staphylococcus aureus and certain risk factors among cows reared under small
holding dairy farms of the tropical region.
Not Available
 
Date 2023-06-06T04:05:42Z
2023-06-06T04:05:42Z
2022-01
 
Type Research Paper
 
Identifier Nagappa Karabasanavar, Manjunatha, Naveenkumar, G. S., Jeevan, M. N and Sivaraman, G. K. (2022). Subclinical mastitis in crossbred dairy cows: Staphylococcus spp. and risk factors in small holder dairy farms, Indian Journal of Animal Sciences 92 (1): 17-21.
0367-8318
http://krishi.icar.gov.in/jspui/handle/123456789/78045
 
Language English
 
Relation Not Available;
 
Publisher ICAR