Extent and pattern of pregnancy losses and progesterone levels during gestation in Swedish Red and Swedish Holstein dairy cows

Abstract Background 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 embryonic and foetal losses. The aim of this study was to establish the exte...

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Main Authors: Sofia Nyman, Hans Gustafsson, Britt Berglund
Format: Artigo
Jezik:Inglês
Izdano: BMC 2018-10-01
Serija:Acta Veterinaria Scandinavica
Teme:
Dairy cow
Embryonic loss
Oestrus
Pregnancy loss
Progesterone
Online dostop:http://link.springer.com/article/10.1186/s13028-018-0420-6
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