V. Kosilov, Y. Yuldashbaev, E. A. Nikonova, I. Rakhimzhanova, R. G. Kalyakina, M. N. Dolgaya
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引用次数: 0
摘要
相关性。本文介绍了一项关于纯种公羊和杂交公羊消耗和利用日粮营养的研究结果。为进行研究,从新生幼畜中挑选公羊组成实验组:I组为罗曼诺夫斯卡娅品种,II组为1/2罗曼诺夫斯卡娅×1/2埃迪尔拜品种,III组为×1/4罗曼诺夫斯卡娅×3/4埃迪尔拜品种。为了研究日粮中营养物质的消耗和利用情况,使用 VIZh 方法(A.I. Ovsyannikov,1976 年)进行了平衡实验。结果表明,杂交幼畜对日粮营养物质的消耗和利用最为集中。值得注意的是,实验组 III 的幼畜对营养物质的消化系数高于实验组 I 和 II 的幼畜,平均为 0.3-1.75。结果表明,II 组和 III 组杂交幼畜对日粮营养的利用率高于纯种幼畜。同时,III 组杂交幼畜对日粮营养物质的消化能力更强。
Influence of genotype of lam on the consumption and use of nutrients in the diets
Relevance. The results of a study of the consumption and use of dietary nutrients by purebred and crossbred rams are presented.Methodology. To conduct the study, experimental groups of rams were formed from newborn young animals: I— Romanovskaya breed, II— 1/2Romanovskaya × 1/2edilbai, III— × 1/4Romanovskaya × 3/4edilbai. To study the consumption and use of nutrients in the diet, a balance experiment was carried out using the VIZh method (A.I. Ovsyannikov, 1976).Results. It has been established that crossbred young animals consume and use the nutrients of the diet most intensively. It is enough to note that the coefficient of digestibility of nutrients by young animals of the experimental group III was higher than by young animals of groups I and II, on average by 0.3–1.75. The results obtained indicate that crossbred young animals of groups II and III made better use of dietary nutrients than purebred peers. At the same time, crossbred young animals of group III were characterized by a better ability to digest nutrients in diets.