摘要
旨在研究日粮中添加发酵豆渣对湖羊生长性能、养分表观消化率、肉品质及血清生化指标的影响,探究发酵豆渣在肉羊生产中的利用价值。试验选取21头体重相近、体况良好的湖羊公羔,随机分为3组:对照组(饲喂基础日粮)、豆渣组(饲喂基础日粮+20%普通豆渣)和发酵豆渣组(饲喂基础日粮+20%发酵豆渣),每组7个重复,每个重复1头羊。预饲期7 d,试验期49 d。结果表明:1)与对照组和豆渣组相比,饲粮中添加20%发酵豆渣可显著提高湖羊的平均日增重(P<0.05),且增重成本显著降低(P<0.05);2)发酵豆渣组湖羊的干物质、粗蛋白和中性洗涤纤维的表观消化率显著高于其他各组(P<0.05);3)与豆渣组相比,发酵豆渣组湖羊的胴体重显著提高(P<0.05),且发酵豆渣组湖羊的屠宰率和红度显著高于其他两组(P<0.05),滴水损失显著低于其他两组(P<0.05);4)与对照组和豆渣组相比,发酵豆渣组湖羊的血清总蛋白含量显著提高(P<0.05),但尿素氮含量显著降低(P<0.05),而与豆渣组相比,发酵豆渣组湖羊的血清白蛋白含量显著提高(P<0.05)。因此,饲粮中添加发酵豆渣可以显著提高湖羊的平均日增重,降低饲料成本,提高日粮的干物质、粗蛋白和中性洗涤纤维的表观消化率,且对肉品质有一定的改善作用。
The experiment was conducted to study the effects of fermented soybean residues on growth performance,apparent nutrient digestibility,meat quality and blood physiological indexes of Hu sheep,and to investigate the value of fermented soybean residues in the production of meat sheep.In the present study,twenty-one healthy male Hu sheep with similar body weight were selected and randomly allocated into a basal diet(control)group,a soybean residue group(basal diet+20% soybean residue,SR)or a fermented soybean residues group(basal diet+20% fermented soybean residues,FSR),with 7 animals in each group.The experiment lasted for 49 days,including a 7-day adaptation period.The results were as follows:1)Compared with the control and SR groups,addition of 20% fermented soybean residues in the diet(FSR)significantly increased the average daily weight gain of Hu sheep(P<0.05)and significantly reduced the weight gain cost(P<0.05).2)The apparent digestibility of dry matter(DM),crude protein(CP)and neutral detergent fiber(NDF)of Hu sheep in the fermented soybean residues group was significantly higher than that in other groups(P<0.05).3)Compared with the SR group,the carcass weight of the FSR group was increased(P<0.05),while the dressing percentage,meat redness values of the FSR group were greater than those of the other groups(P<0.05),and the drip loss was lower than other groups(P<0.05).4)Compared with the control and SR groups,the serum total protein content of the FSR group was increased(P<0.05),and the urea nitrogen content was reduced(P<0.05).Compared with the SR group,the serum albumin content of the FSR group was increased significantly(P<0.05).In conclusion,the addition of fermented soybean residues in the diet significantly improved the average daily gain of Hu sheep,reduced the feed cost,improved the apparent digestibility of DM,CP and NDF,and improved the meat quality and serum biochemical indexes.
作者
范阳
齐伟彪
朱崇淼
殷雨洋
毛胜勇
FAN Yang;QI Wei-biao;ZHU Chong-miao;YIN Yu-yang;MAO Sheng-yong(College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China;Nanjing Zhirun Biotechnology Limited Company,Nanjing 211200,China;Huzhou Academy of Agricultural Sciences,Huzhou 313000,China)
出处
《草业学报》
CSCD
北大核心
2022年第11期86-93,共8页
Acta Prataculturae Sinica
基金
江苏省农业自主创新项目[CX(19)1006]资助。
关键词
发酵豆渣
湖羊
生长性能
表观消化率
肉品质
血清生化指标
fermented soybean residues
Hu sheep
growth performance
apparent digestibility
meat quality
serum biochemical indexes
