International Journal of
Livestock Production

  • Abbreviation: Int. J. Livest. Prod.
  • Language: English
  • ISSN: 2141-2448
  • DOI: 10.5897/IJLP
  • Start Year: 2009
  • Published Articles: 276

Full Length Research Paper

Laying performances and egg quality characteristics of F1 crossbred hens resulting from Label Rouge (T55XSA51) and two local ecotypes as parental lines

Youssao A. K. I.1*, Senou M.2, Dahouda M.2, Idrissou N. D.3, Amoussou-Sydol E.1, Tougan U. P.1,  Ahounou S.1, Yapi-Gnaoré V. 4, Kayang B.5, Rognon X.6,Tixier-Boichard M.6 and Kpodékon M. T.1
    1Université d’Abomey-Calavi, Ecole Polytechnique d’Abomey-Calavi, Département de Production et Santé Animales, 01 BP 2009 Cotonou, Bénin.         2 Faculté des Sciences Agronomiques / Université d’Abomey d’Abomey-Calavi, 01 BP 526 Cotonou, Bénin.   3Centre de Gestion Durable des Ressources Animales et Végétales (CGDRAV_ONG), BP 1096, Parakou, Bénin.   4Centre National de Recherche Agronomique, 01 BP 1740 Abidjan 01, Côte d'Ivoire.   5Department of Animal Science, Faculty of Agriculture, University of Ghana, Legon, Ghana.   6INRA, AgroParisTech, UMR1313 "Génétique animale et biologie intégrative", Centre de Recherches INRA, 78352 Jouy-en-Josas Cedex, France.
Email: [email protected]

  •  Accepted: 17 December 2010
  •  Published: 30 June 2011

Abstract

 

The laying performances and the egg quality characteristics of hens of different genotypes were studied, namely:  the; local hens of savannah ecotype (Es) , the local hens of forest ecotype (Ef), the Label Rouge (Lr or T55xSA51) and its crossbred products with local ecotypes: LrxEs, EsxLr and EfxLr. In family poultry farms, the hatching rate (HR), the fertility rate (FR), the average brood size (ABSH) at hatching and at the weaning (ABSW), the egg weight (EW) and the chick’s body weight (BWC) were significantly higher (P<0.05) in local hens of savannah typethan those obtained in local hens of forest ecotype. The highest laying rate (RL) was obtained on station with the hens of Lr breed (41%) followed by the LsxLr crossbred (36%) and the Ls hens. The most fertile hens were those of the local ecotypes (Es, Ef) with a fertility rate (FR) “taken from  88 to 90%”followed by the hens of genotypes EsxLr and EfxLr (82 to 84%), the Lr hens (77%) and the LrxEs (68%). At the laying, the eggs of the Label Rouge were significantly heavier (P<0.001) than those of the crossbred hens. The lightest EW was obtained in the local hens of the two ecotypes. A significant (p<0.05) negative heterosis effects was found for the traits egg weight, egg yolk and egg white in the crosses involving females Lr. In crosses involving males Lr, a significant (p<0.01) heterosis was observed only for egg weight. The crossing EsxLr is the best adapted for the genetic improvement of local chickens of Benin.

 

Keys words: Hens, laying performance, egg quality, genotypes, ecotypes, heterosis.