Publications Scientifiques

[ Article ] Phenotypic characterisation and molecular polymorphism of indigenous poultry populations of the species Gallus gallus of Savannah and Forest ecotypes of Benin

Date de soumission: 10-01-2017
Année de Publication: 2009
Entité/Laboratoire Laboratoire de Recherche en Biologie Appliquée (LARBA)
Document type : Article
Discipline(s) : Productions Animales & Zootechnie
Titre Phenotypic characterisation and molecular polymorphism of indigenous poultry populations of the species Gallus gallus of Savannah and Forest ecotypes of Benin
Auteurs YOUSSAO ABDOU KARIM ISSAKA [1], TOBADA COSSI PAMPHILE [1], KOUTINHOUIN G. BENOÎT [1], DAHOUDA MOHAMADOU [1], IDRISSOU N. D. [1], BONOU A. G. [1], TOUGAN P. ULBAD [1], AHOUNOU G. SERGE [1], Yapi-Gnaoré V. [1], KAYANG B. [1], ROGNON X. [1], Tixier- Boichard M. [1],
Journal: African Journal of Biotechnology
Catégorie Journal: Africaine
Impact factor: 0
Volume Journal: 9
DOI:
Resume The study of the phenotypic characterisation and molecular polymorphism of local chicken populations was carried out in Benin on 326 chickens of the Forest ecological area and 316 of the Savannah ecological area, all were 7 months old at least. The collection of blood for the molecular typing was achieved on 121 indigenous chickens of which 60 from the Savannah ecological area and 61 from the Forest ecological area. The genotyping was carried out for 22 microsatellite loci. Weight and body measures of the Savannah chickens were significantly higher (P < 0.001) than those of the Forest chickens. In the Savannah ecological area, the most frequent plumage colours were the black (22.15%), the white (19.62%), the coppery black (7.59%) and the golden partridge (7.59%). In the Forest area, the fawn (15.34%), the black (10.43%), the white (6.8%), the silver white (6.8%) and the golden partridge (6.75%) were the dominant feather colours. Thus, phenotypic characterisation showed significant differences between Savannah and Forest local chickens. The FST calculated between the Savannah and Forest populations revealed a low genetic differentiation and the dendogram showed that Savannah and Forest chickens were quite intermingled. In conclusion, local populations from Savannah and Forest area may be considered as ecotypes, but not as two distinct breeds.
Mots clés Body weight, plumage colour, molecular polymorphism, local chickens, Benin
Pages 369 - 381
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