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Utilice este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/667


Título: Factors affecting actual weaning weight, preweaning average daily gain and relative growth rate in Asturiana de los Valles beef cattle breed
Autores: Goyache, Félix
Fernández, Iván
Royo Martín, Luis J.
Álvarez, Isabel
Gutiérrez, Juan P.
Palabras Claves: Environmental factors
Heritability
Maternal effects
Fecha Edición: 2003
Editor: Archiv für Tierzucht, Dummerstorf, ALLEMAGNE (1958) (Revue)
Cita Bibliográfica: Goyache, Felix; Fernánez, Iván, Royo, Luis J.; Álvarez, Isabel; Gutiérrez, Juan Pablo. Factors affecting actual weaning weight, preweaning average daily gain and relative growth rate in Asturiana de los Valles beef cattle breed. Archiv für Tierzucht. 2003; 46 (3): 235-243.
Resumen: In this paper we analyse the major environmental and genetic factors affecting actual weaning weight (WW), preweaning average daily gain (ADG) and relative growth rate (RGR) in a representative sample of field data of Asturiana de los Valles beef cattle breed. Major environmental factors affect preweaning growth performance of Asturiana de los Valles calves in the direction usually found in the literature. However RGR seems to be self-corrected for sex of calf and calving number. Heritabilities for the direct and maternal genetic effects were 0.67 and 0.29, 0.51 and 0.31 and 0.18 and 0.12 respectively for WW, ADG and RGR. The estimates of genetic parameters affecting RGR are more realistic than those estimated for the WW and ADG. Selection for RGR would lead to obtain higher growth rates and lower birth weights. RGR could be an interesting selection criterion in beef cattle improvement programs.
URI: https://ria.asturias.es/RIA/handle/123456789/667
ISSN: 0003-9438
Aparece en las Colecciones:Agroalimentación y Ganadería
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