Role of selective dry cow therapy in prevention of mastitis in dairy herds with high disease prevalence

B.K. Bansal; P.S. Dhaliwal; N.S. Bajwa; S.S. Randhawa

Role of selective dry cow therapy in prevention of mastitis in dairy herds with high disease prevalence

In: Mastitis in dairy production

Authors:

B.K. Bansal

B.K. Bansal Department of Clinical Veterinary Medicine, Punjab Agricultural University, Ludhiana, India

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P.S. Dhaliwal

P.S. Dhaliwal Department of Clinical Veterinary Medicine, Punjab Agricultural University, Ludhiana, India

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N.S. Bajwa

N.S. Bajwa Department of Clinical Veterinary Medicine, Punjab Agricultural University, Ludhiana, India

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S.S. Randhawa

S.S. Randhawa Department of Clinical Veterinary Medicine, Punjab Agricultural University, Ludhiana, India

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Type:: Chapter

Pages:: 695–702

DOI:: https://doi.org/10.3920/9789086865505_106

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A field trial was conducted to assess the effect of selective dry cow therapy on quarter infection, milk cell count and occurrence of clinical mastitis at three organised dairy farms housing HF×Sahiwal cows. Animals approaching dry period were screened for mastitis and assigned two groups: Treatment group cows (n=59) each with at least one diseased quarter, were infused in all quarters irrespective of quarter health status, with “Cepravin dry cow” (cephalonium 250mg) at drying off. Control group cows (n=51) each having all quarters healthy received no treatment. Quarter foremilk samples were analysed for microbiology and cell count (California mastitis test, CMT) three times before drying, and three times after calving. Cows were followed throughout dry period and until disposed off or milked for at least 7 months post-calving. Therapy could eliminate 90.67% (68/75) existing subclinical infections and cured 14/19 (73.68%) clinical mastitis cases. Significantly less new infections established in treatment group (2.81%) than in control (14.42%) indicating a prevention of 80.51%. Occurrence of clinical mastitis during dry period reduced by 75.88%. Therapy resulted an appreciable fall in average CMT score of treated quarters i.e. 1.62 to 0.10, and at calving only 5.55% quarters were CMT positive among treated cows as compare to 53.85% in control. Follow up in subsequent lactation revealed significant reduction in clinical mastitis; occurrence in treated vs. control cows being nil vs. 6.03% (by 7d), 1.91 vs. 8.54% (by 30d), and 7.65 vs. 13.07% by 3 months post-calving. Thus, selective dry cow therapy appeared an effective tool for prevention of mastitis and lowering of milk cell count.

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Mastitis in dairy production

Current knowledge and future solutions

E-Book ISBN:: 9789086865505

Publisher:: Wageningen Academic

Print Publication Date:: 24 Oct 2005

Subjects
- Life Sciences

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Role of selective dry cow therapy in prevention of mastitis in dairy herds with high disease prevalence

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Mastitis in dairy production

Current knowledge and future solutions

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