Extent and pattern of pregnancy losses and progesterone levels during gestation in Swedish Red and Swedish Holstein dairy cows
Pregnancy loss is a major source of infertility in dairy cows. Despite a fertilization rate after insemination (AI) of approximately 90%, calving rates are 30% –50%, indicating the occurrence of extensive embry...
Source: Acta Veterinaria Scandinavica - Category: Veterinary Research Authors: Sofia Nyman, Hans Gustafsson and Britt Berglund Tags: Research Source Type: research
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