TAILIEUCHUNG - báo cáo khoa học: "Genotype diet interaction in Fayoumi and Rhode Island Red layers and their crosses"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Genotype diet interaction in Fayoumi and Rhode Island Red layers and their crosses | Génét. Sél. Evol. 1987 19 2 267-274 Note Genotype diet interaction in Fayoumi and Rhode Island Red layers and their crosses M. ABOU-EL-KASSEM ABD-EL-LATIF A. BORDAS p. MÉRAT . Centre de Recherches de Jouy-en-Josas Laboratoire de Génétique factorielle F 78350 Jouy-en-Josas Summary Fayoumi and Rhode Island Red . layers and their two reciprocal crosses were distributed into 2 groups which received different diets in the laying period. The diets had the same calculated energy level and their total protein content differed by less than 1 p. 100 but one of them contained 40 p. 100 barley and the other contained none. With the barley-containing diet feed consumption egg mass egg number and mean egg weight per hen were reduced bụt the effects were more marked in the . line and one of the reciprocal crosses with a significant genotype X diet interaction for egg mass average clutch length total feed intake and its residual component. Key words Hen Fayoumi Rhode Island Red egg production feed barley. Résumé Interaction génotype-réglme alimentaire chez des pondeuses Fayoumi Rhode Island et leurs croisements Des poules Fayoumi et Rhode Island . et leurs 2 croisements réciproques ont été répartis en 2 groupes recevant un regime alimentaire different en période de ponte. Les 2 régimes avaient la même teneur énergétique et un taux protéiqụe differant de moins de 1 p. 100 mais 1 un contenait 40 p. 100 d orge 1 autre n en contenait pas. En présence de la ration à base d orge la consommation alimentaire et la masse d oeufs produite par poule ainsi que le nombre et le poids moyen des ceufs étaient abaissés mais les effets etaient plus marques dans la lignée . et dans 1 un des croisements réciproques avec une interaction régime X type génétiqũe significative pour la masse d oeufs la longueur moyenne des séries de ponte la consommation alimentaire totale et sa composante résiduelle . Mots clés Poule Fayoumi Rhode Island ponte regime alimentaire orge. Permanent

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