Fecha/hora: 11/06/2024 23:36:26

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 31/03/2021
Fecha de la última actualización: | 31/03/2021
Autoria: | PRAVIA, M.I.; RAVAGNOLO, O.; URIOSTE, J.
Afiliación: | MARIA ISABEL PRAVIA NIN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OLGA RAVAGNOLO GUMILA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE I. URIOSTE, Facultad de Agronomía. Universidad de la República. Uruguay.
Título: | Development of selection indexes for a beef cattle production system from available EPDs.
Complemento del título: | Volume Genetic Improvement Programs: Breeding objectives, economics of selection schemes, and advances in selection theory (Posters), p. 406.
Año de publicación: | 2014
Fuente/Imprenta: | In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 10., Vancouver, BC, Canada, August 17-22, 2014. p.406.
Idioma: | Inglés

Contenido:

ABSTRACT.
Due to the complexity of selection in beef cattle where numerous traits are involved, identification of breeding objectives and developing a selection index to improve a global goal is required. A selection index was developed to maximize genetic gain for a beef cattle operation system. Breeding objective includes calving rate, carcass weight, calving ease, feed intake, direct and maternal weaning weight. Indexes were constructed from traits which EPDs are available so it can be implement to make comparisons between animals with different genetic merit. Genetic responses obtained from the use of a propose index were compared with simpler indexes. Selection through the proposed index achieved higher genetic progress in the breeding objective and resulted in an increased economic return to the system. The lack of national genetic parameters for some of the most important traits is a limitation and some implications were discussed.

Palabras-Clave: | Beef cattle; Breeding objectives; Selection index.
Categoría del tema: | L10 Genética y mejoramiento animal
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/15442/1/Pravia-et-al.-2014.-WCGALP.pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102597-1) - PXI - PC - DD - WCGALP/10/2014 -  -  - DIS