摘要
文章旨在分析日粮中发酵菜籽粕(Fermented Rapeseed Meal,FRM)替代豆粕对肉牛生长性能、表观消化率及屠宰性能的影响。试验将60头健康状况良好,日龄和体重相近的西门塔尔肉牛随机分为3组,每组4个重复,每个重复5头。对照组根据肉牛营养需要(NRC)配制全混合日粮,蛋白饲料由50%豆粕+50%发酵菜籽粕,0%豆粕+100%发酵菜籽粕组成(等氮),并记为FRM50组、FRM100组。预饲期7?d,正试期90 d。结果表明:(1)对照组、FRM50组肉牛末重、平均日增重显著高于FRM100组(P <0.05),FRM50组肉牛料重比显著低于FRM100组(P <0.05)。(2)与FRM100组相比,对照组,FRM50组肉牛的粗蛋白质和粗脂肪消化率得到显著提高(P <0.05)。(3)对照组、FRM50组肉牛宰前活重显著高于FRM100组(P <0.05),FRM50组肉牛胴体重、净肉重显著高于FRM100组(P <0.05)。综上所述,等氮替代条件下,50%豆粕+50%发酵菜籽粕作为蛋白质的饲料能提高肉牛生长性能、表观消化率,改善肉牛屠宰性能。
To analyze the effects of fermented rapeseed meal(FRM)replacing soybean meal in feed on the growth performance,apparent digestibility,and slaughter performance of beef cattle.Sixty healthy Simmental beef cattle of similar age and weight were selected for the experiment and randomly divided into three groups,with four replicates in each group and five in each replicate.The control group was allocated a full mixed diet based on the nutritional requirements(NRC)of beef cattle,Protein feed consists of 50%soybean meal+50%fermented rapeseed meal,0%soybean meal+100%fermented rapeseed meal(iso-nitrogen)and were recorded as FRM50 and FRM100 groups.The pre trial period of the experiment is 7 days,and the trial period is 90 days.The results showed that:(1)The control group and FRM50 group had significantly higher final weight and average daily gain compared to the FRM100 group(P<0.05).(2)Compared with FRM100 group,the digestibility of crude protein and crude fat of beef cattle in control group and FRM50 group were significantly increased(P<0.05).(3)The live weight before slaughter of beef cattle in the control group and FRM50 group was significantly higher than that in the FRM100 group(P<0.05).In summary,under the condition of isonitrogen substitution,50%soybean meal+50%fermented rapeseed meal is used as protein feed It can improve the growth performance,apparent digestibility and slaughter performance of beef cattle.
作者
王胜强
李志钢
WANG Shengqiang;LI Zhigang(Animal Husbandry Development Center of Linxia County,Linxia,Gansu Province 731800,China;Animal Quarantine Station of Pingdingshan City,Pingdingshan,Henan Province 467001,China)
出处
《中国饲料》
北大核心
2024年第4期81-84,共4页
China Feed
关键词
发酵菜籽粕
肉牛
生长性能
表观消化率
屠宰性能
fermented rapeseed meal
beef cattle
growth performance
apparent digestibility
slaughtering performance
