A study on the effect of low-soybean meal and low-protein ration on Nicholas turkey's growth performance
360 one-day-old Nicholas turkeys were chosen and randomized into 9 groups based on ratios of body shape and sex.In each group,there were 4 repeating subgroups(n=10).The experiment consisted of two stages,namely 0-4-week-old and 5-8-week-old.3×3 two-factor approach was employed.The whole study was to determine the effect of normal protein ration(corn-soybean meal,corn and low soybean meal,brown rice-corn-and-low-soybean-meal),ration with 2％lower protein level(corn-soybean meal,corn and low soybean meal,brown rice-corn-and-low-soybean-meal),and ration with 4％lower protein level(corn-soybean meal,corn and low soybean meal,brown rice-corn-and-low-soybean-meal)on Nicholas turkey's growth performance.The experimental results suggest compared with corn-soybean-meal and normal protein ration groups,the ration group with 2％lower protein level showed no significant difference in terms of feed intake,feed conversion rate,and liveweight gain(P＞0.05),while the ration group with 4％lower protein level appeared insignificantly different in feed intake(P＞0.05)but showed significantly higher feed conversion rate and lower liveweight gain(P＜0.05).Proper addition of such ingredients as cotton seed meal,rape seed meal,protein powder,and DDGS produced no significant effect on either turkey's liveweight gain or feed conversion rate(P＞0.05).When corn was substantially substituted with brown rice and ration nutrition was bet-ter balanced,the turkey's growth performance remained unchanged.This practice also lowered the level of soybean meal in the feed.
Nicholas turkeylow-protein rationproteingrowth performance
万方数据
维普
