| Comparison of the calving-to-conception interval in dairy cows with different degrees of lameness during the prebreeding postpartum period. | |
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MedLine Citation:
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PMID: 16266018 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To compare calving-to-conception intervals among cows classified as nonlame, moderately lame, or lame during the prebreeding postpartum period and to examine the relationship between severity of lameness and time to conception in cows that were classified as lame. DESIGN: Longitudinal study. ANIMALS: 499 Holstein cows. PROCEDURE: Cows in the prebreeding postpartum period were classified as nonlame, moderately lame, or lame by use of a 6-point locomotion scoring system. Time to conception (days) was compared among cows. A low, medium, or high cumulative locomotion score was assigned to lame cows, and time to conception among those cows was compared. Cows classified as lame were examined on a tilt table for diagnosis and treatment of lameness. RESULTS: 154 (31%), 214 (43%), and 131 (26%) cows were classified as nonlame, moderately lame, and lame, respectively. Most cows classified as lame had laminitis (54%) or disorders of the claw (33%). Median time to conception was 36 to 50 days longer in lame cows than in nonlame cows. Among lame cows, the median time to conception was 66 days longer in cows with high cumulative locomotion scores than in cows with low scores. CONCLUSION AND CLINICAL RELEVANCE: Nonlame cows became pregnant more quickly than lame cows. Lame cows with low cumulative locomotion scores during the prebreeding postpartum period became pregnant sooner than lame cows with high scores. Early diagnosis and intervention may mitigate the effects of lameness and improve reproductive performance in lame dairy cows. |
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Authors:
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Jorge A Hernandez; Eduardo J Garbarino; Jan K Shearer; Carlos A Risco; William W Thatcher |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Journal of the American Veterinary Medical Association Volume: 227 ISSN: 0003-1488 ISO Abbreviation: J. Am. Vet. Med. Assoc. Publication Date: 2005 Oct |
Date Detail:
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Created Date: 2005-11-03 Completed Date: 2005-11-28 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7503067 Medline TA: J Am Vet Med Assoc Country: United States |
Other Details:
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Languages: eng Pagination: 1284-91 Citation Subset: IM |
Affiliation:
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Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610-0136, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cattle Cattle Diseases / physiopathology* Female Fertility* / physiology Foot Diseases / physiopathology, veterinary* Hoof and Claw / pathology* Lameness, Animal / classification, physiopathology* Longitudinal Studies Postpartum Period Pregnancy Severity of Illness Index Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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