Đang chuẩn bị liên kết để tải về tài liệu:
báo cáo khoa học: "Genotype diet interaction in Fayoumi and Rhode Island Red layers and their crosses"
Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
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 I.N.R.A. Centre de Recherches de Jouy-en-Josas Laboratoire de Génétique factorielle F 78350 Jouy-en-Josas Summary Fayoumi and Rhode Island Red R.l.R. 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 R.I.R. 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 R.I.R. 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 R.I.R. 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