MOET Efficiency in a Spanish Herd of Japanese Black Heifers and Analysis of Environmental and Metabolic Determinants

Embryo transfer procedures have been widely implemented in bovine all around the world. These techniques help to accelerate the increase in the genetic merit and to keep the level of inbreeding under control, which is especially important in breeds, such as Japanese Black cattle, in areas outside of Japan, where there are scarce individuals and few herds. Our study describes an adequate embryo productivity of Japanese Black heifers under Spanish management and environmental conditions, like that which has been previously reported, demonstrating the adequate adaptation capacity of these animals. No effect on embryo production or quality was found due to plasma metabolic parameters of the donors, suggesting an optimal nutritional and body conditioning of the donors’ herd. Pregnant recipients after embryo transfer showed significantly higher levels of cholesterol-related parameters, glucose, and urea, which may be related to higher availability of nutrients for the future pregnancy. Heat stress at embryo transfer negatively impacted conception rates as expected, while larger parity and ET number corresponded to numerically higher conception rates.

Bibliographic Details

Main Authors:	Vázquez-Mosquera, Juan M., Fernández-Novo, Aitor, Bonet-Bo, Martin, Pérez-Villalobos, Natividad, Pesántez-Pacheco, Jose L., Pérez-Solana, Maria Luz, de Mercado, Eduardo, Gardón, Juan Carlos, Villagrá, Arantxa, Sebastián, Francisco, Pérez-Garnelo, Sonia Salomé, Martínez, Daniel, Astiz, Susana
Format:	artículo biblioteca
Language:	English
Published:	Multidisciplinary Digital Publishing Institute 2022-01-30
Subjects:	Donor, Recipients, Management, Cholesterol, Japanese Black,
Online Access:	http://hdl.handle.net/20.500.12792/6204 http://hdl.handle.net/10261/289858
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