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Modeling the Effect of Lameness on Culling of Dairy Cows in Tehran Province
Objective-To assess the effect of lameness on culling of dairy cows in Tehran province.<br /> Design- Historical cohort study.<br /> Study population and procedures- 7067 first- and second-parity Holstein dairy cows that calved from March, 21 2007 to March, 20 2008 were until next calvin...
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Главные авторы: | , , , , , |
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Формат: | Artigo |
Язык: | Inglês |
Опубликовано: |
Iranian Veterinary Surgery Association (IVSA)
2009-08-01
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Серии: | Iranian Journal of Veterinary Surgery |
Предметы: | |
Online-ссылка: | http://www.ivsajournals.com/article_3153_492ea83024746e389c384e621643fbf2.pdf |
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