Effect of lameness on the calving-to-conception interval in dairy cows
- 15 May 2001
- journal article
- Published by American Veterinary Medical Association (AVMA) in Journal of the American Veterinary Medical Association
- Vol. 218 (10), 1611-1614
- https://doi.org/10.2460/javma.2001.218.1611
Abstract
Objective—To examine the relationship between lameness and the duration of the interval from calving to subsequent conception in lactating dairy cows.Design—Cohort study.Animals—837 dairy cows.Procedure—Cows affected with lameness were classified into 1 of 4 groups on the basis of types of disease or lesions observed, including foot rot, papillomatous digital dermatitis, claw lesions, or multiple lesions. Cows not affected with lameness were classified as healthy. Time from calving to conception was compared between lame cows and healthy cows.Results—254 (30%) cows were affected with lameness during lactation. Most lame cows (59%) had claw lesions. Lame cows with claw lesions were 0.52 times as likely to conceive as healthy cows. Median time to conception was 40 days longer in lame cows with claw lesions, compared with healthy cows. Number of breedings per conception for lame cows with claw lesions was significantly higher than that for healthy cows.Conclusion and Clinical Relevance—Claw lesions were the most important cause of lameness, impairing reproductive performance in dairy cows, as indicated by a higher incidence of affected cows and a greater time from calving to conception and a higher number of breedings required per conception, comp ared with healthy cows. (J Am Vet Med Assoc2001; 218:1611–1614)This publication has 20 references indexed in Scilit:
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