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- Title
Estrategias de alimentación energética para acortar el anestro posparto de vacas lecheras a pastoreo.
- Authors
Mendoza, A.; Cavestany, D.; La Manna, A.; Chilibroste, P.; Meikle, A.
- Abstract
A prolonged postpartum anoestrus (PPA) is related to a low reproductive efficiency in dairy farms, independently of the calving pattern or feeding system. Postpartum luteal activity resumption is coincident with the onset of lactation when the cow is in negative energy balance, which depending on its magnitude could alter the hypothalamus - pituitary - ovary axis of the animal and prolong the PAA. In this article, some results from experiments that manipulated nutrition as a strategy to shorten the PPA, with emphasis in grazing systems, are briefly reviewed. Available information suggests that manipulation of the level and source of dietary energy are promising tools to reduce the length of the PPA in grazing dairy cows and increase the reproductive efficiency in dairy farms.
- Subjects
DAIRY cattle feeding &; feeds; NUTRITION &; reproduction; MAMMAL reproduction; ESTRUS; DAIRY cattle physiology; LIVESTOCK reproduction; BIOENERGETICS; ENERGY density
- Publication
Latin American Archives of Animal Production / Archivos Latinoamericanos de Producción Animal / Arquivos Latino-Americanos de Produção Animal, 2011, Vol 19, Issue 3-4, p42
- ISSN
1022-1301
- Publication type
Article