首页|不同比例饲用小黑麦青贮对平凉红牛肥育效果的影响

不同比例饲用小黑麦青贮对平凉红牛肥育效果的影响

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为探究日粮添加不同比例饲用小黑麦青贮对平凉红牛肥育效果的影响,试验选择品种一致,月龄、体重相近的平凉红牛20头,随机分成5组,每组4头.对照组饲喂基础日粮;试验A组、B组、C组和D组分别以30%、50%、70%和100%甘农2号小黑麦青贮替代基础日粮中全株玉米青贮.试验预试期为10 d,正试期为90 d.结果表明:在育肥前30 d,试验组平均 日增重较对照组分别显著降低23.48%、13.64%、21.21%和27.27%(P<0.05),平均 日采食量较对照组分别显著降低了 4.10%、6.30%、5.87%和10.28%(P<0.05),料重比显著高于对照组(P<0.05).育肥30~90 d,试验组平均日增重较对照组分别显著降低了 6.11%、16.79%、29.01%和16.03%(P<0.05).平均日采食量较对照组分别显著降低了 4.63%、15.09%、4.86%和21.14%(P<0.05),和前30 d相比,A组的平均日增重和平均日采食量分别提高了 21.78%和6.44%,料重比降低了 3.19%.整个育肥期,试验组平均日采食量和平均日增重显著低于对照组(P<0.05),A组料重比最低且纯收入最高.综合考虑生产性能及经济效益,日粮粗饲料中30%甘农2号小黑麦青贮替代全株玉米青贮时,虽然日增重有所降低,但试验牛的日采食量、料重比和养殖成本最低,经济效益最高.
Effects of different proportions of forage triticale silage on the fattening effect of Pingliang red bull
In order to explore the effects of different supplemental proportions of forage triticale silage on the finishing effect of Pingliang red bull.Twenty Pingliang red bull with the same breed,month age and weight were selected and randomly divided into 5 groups,with 4 heads in each group.Beef in the control group were fed a basic diet,and those in the experimental groups were fed the basic diet supplemented with 30%,50%,70% and 100% Gannong 2 forage triticale silage instead of corn silage,respectively.The pre-experiment and formal experiment were respectively conducted 10 days and 90 days.The results showed that 30 days before fattening,the average daily gain of the test group was significantly lower than that of the control group by 23.48%,13.64%,21.21% and 27.27%(P<0.05),and the average daily feed intake was significantly lower than that of the control group by 4.10%,6.30%,5.87% and 10.28%(P<0.05),and the feed weight ratio was significantly higher than that of the control group(P<0.05).After 30~90 days of fattening,the average daily gain of the test group was significantly reduced by 6.11%,16.79%,29.01% and 16.03% compared with the control group(P<0.05).Compared with the control group,the average daily feed intake decreased by 4.63%,15.09%,4.86% and 21.14%respectively(P<0.05).Compared with the first 30 days,the average daily gain and average daily feed intake of group A increased by 21.78% and 6.44% respectively,and the feed weight ratio decreased by 3.19%.During the whole fattening period,the average daily food intake and the average daily weight gain in experiment groups were significantly lower than that in the control group(P<0.05).Group A had the lowest feed weight ratio and the highest net income.Considering the production performance and economic benefits,when 30% Gannong 2 triticale silage replaced the whole plant corn silage in the diet roughage,although the daily weight gain was reduced,the daily feed intake,feed weight ratio and breeding cost of the test cattle were the lowest,and the economic benefits were the highest.

forage triticale silagecorn silagePingliang red bullfattening

马淑梅、宋谦、张兰、余小亮、杨晓、杜文华

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平凉市农业科学院,甘肃平凉 744000

甘肃农业大学草业学院,甘肃兰州 730070

小黑麦青贮 全株玉米青贮 平凉红牛 肥育

甘肃省科技计划国家自然科学基金甘肃省高等学校产业支撑计划甘肃省重点研发计划西藏重大专项甘肃省重点研发计划

20CX9NL199322603392022CYZC-4920YF8NA129XZ202101ZD003N23YFNL0003

2023

中国饲料
中国饲料工业协会

中国饲料

北大核心
影响因子:0.577
ISSN:1004-3314
年,卷(期):2023.(23)
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