Resumen

ROCHA, L.P. et al. Performance of the crossbreed lambs in Alagoas, Brasil. Arch. zootec. [online]. 2009, vol.58, n.221, pp.145-148. ISSN 1885-4494.

The aim of the study was to evaluate crossbred lambs and to estimate some environment effects which affect the performance of those animals in Alagoas state, Brazil. The traits studied were birth weight, weight at 15 days, weight at 30 days and weight at 45 days. In 128 calving informations, the effects of type of birth, sex of lambs, genotype and contemporary group (year, month of birth) were included. The effects of type of birth were significant for all traits studied. Animals from single birth were weighter than double birth ones. The effects of sex and genotype weren't significative for any trait. The contemporary group (year, month of birth) was significant only for birth weight.

Palabras clave : Birth weight; Cabugi; Dorper; Santa Inês.

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