Environmental factors on the probability of pregnancy in early or conventionally weaned beef cows
Ricardo Zambarda Vaz,
José Fernando Piva Lobato,
Javier Alexander Bethancourt-Garcia
et al.
Abstract:Potential variables for the reproductive success of beef cows were evaluated. Included in the model were the age of the cow at calving; the interval between the Julian calving date and the end of the breeding season; the body weight and conditions at calving, at 75 days post-partum and at the end of the breeding season; and the mean daily variation in weight between these dates. Logistic regression was used in the analysis, with the parameters evaluated using the odds ratio statistic, estimating the chance of … Show more
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