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Abstract
Ślaska, B. and Rozempolska-Rucińska, I. 2010. Value of reproductive traits of Chinchillas in relation to animal conformation. J. Appl. Anim. Res., 38: 17–21.
To determine the effect of the phenotypic upgrading of conformation traits on changes in the additive value of reproductive performance BLUP estimates were used for evaluating the mean breeding value of the number of born and weaned kits related to the body weight and the total evaluation of conformation. The mean breeding value of fecundity was significantly higher in the group of the heaviest females, compared to the group of the lightest dams. The biggest number of born and weaned kits was noted in the group of females with the lowest hair coat quality. Selection of animals based on body weight successfully predicts the breeding value of the reproductive traits. The total estimation of conformation—a phenotypic selection criterion—leads to a decline in the additive value of reproductive traits.
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