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- Flores, J.M., et al. Show all 7 Authors
- Livestock science 2016 v.189 pp. 50-55
- Holstein; calving; conception rate; cows; endometritis; epidemiological studies; herds; ketosis; lactation; milk yield; odds ratio; regression analysis; retained placenta; risk analysis; risk factors
- ... Two data files consisting of 3278 (one herd) and 4393 lactations (three herds) were used to characterize milk production of high-yielding Holstein cows milked three times per day and experiencing extended lactations (up to 1399 days) in a hot environment. Additional objectives were to identify risk factors for the occurrence of extended lactations, to assess the association between lactation lengt ...