Resumen

REVIDATTI, F et al. Reproductive output in laying hen and meat type breed crosses. InVet [online]. 2005, vol.7, n.1, pp.19-23. ISSN 1668-3498.

In this work we evaluate different variables in relation with the reproductive output in two traditional breed chicken types one of them semi-heavy for egg production (Negra and Rubia INTA) and the other one heavy whose offsprings are destined to meat chicken production (Campero INTA). We found significative differences in the settables egg number (191 and 110 eggs per hen per year) in the fertility percent (93 and 88) in the hatchability (88 and 83) and in the chick number per hen per year (158 and 82) between semi-heavy an heavy chickens respectively. These results agree with the references in relation with reproductive fitness in laying and meat type chickens.

Palabras clave : Poultry; Reproduction; Chickens; Backyard production.

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