Progesterone-based fixed-time artificial insemination protocols for dairy cows
In the last 50 years, milk production increased in lactating dairy cows. In contrast, reproductive efficiency has dramatically decreased. Several causes may be involved, such as management and environmental factors, physiological and nutritional factors, disease challenges and others. Steroid ho...
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| Language: | English |
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Universidade de São Paulo
2016
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| Online Access: | http://www.teses.usp.br/teses/disponiveis/11/11139/tde-30092016-150847/ |