补喂大豆浓缩蛋白、精氨酸+赖氨酸对哺乳期羔羊生长和生长轴激素水平的影响  

Effect of supplemented with soybean protein concentrate,arginine and lysine on the growth and growth axis hormone levels of suckling lambs

作　　者：梅莹莹 张文杰 张亚倩 杨璐宽 刘志强 汪建国 曹志军[3] 杨开伦[1] MEI Yingying;ZHANG Wenjie;ZHANG Yaqian;YANG Lukuan;LIU Zhiqiang;WANG Jianguo;CAO Zhijun;YANG Kailun(College of Animal Science and Technology,Xinjiang Agricultural University,Urumqi,Xinjiang 830052,China;Xinjiang Shangpin Meiyang Technology Co,Ltd,Changji,Xinjiang 831100,China;College of Animal Science and Technology,China Agricultural University,Beijing 100193,China)

机构地区：[1]新疆农业大学动物科学学院,新疆乌鲁木齐830052 [2]新疆上品美羊科技有限公司,新疆昌吉831100 [3]中国农业大学动物科技学院,北京100193

出　　处：《中国饲料》2024年第5期75-82,共8页China Feed

基　　金：新疆维吾尔自治区“农区高效肉羊品种选育推广体系”(xjnqry-g-2302)。

摘　　要：为研究补喂大豆浓缩蛋白(SPC)、精氨酸+赖氨酸(Arg+Lys)对哺乳期羔羊生长和生长轴激素水平的影响,试验选用平均体重为(6.02±0.45)kg的7日龄双胎湖羊羔羊24只,随机分为3组,每组8只羊(4公4母),分别为对照组、SPC组和AA组。对照组补喂生理盐水、SPC组补喂250 mg/kg BW大豆浓缩蛋白、AA组补喂50 mg/kg BW Arg+50 mg/kg BW Lys,试验期28 d。结果表明:(1)与对照组相比,SPC组羔羊35 d体重、7~35 d平均日增重提高了10.62%、23.25%(P> 0.05),AA组羔羊35 d体重、7~35 d平均日增重显著提高了21.06%、47.16%(P <0.05)。(2)与对照组相比,SPC组和AA组羔羊血浆谷氨酰胺浓度显著降低了17.65%、20.19%(P <0.05);AA组羔羊补喂前0 h血浆尿素氮浓度显著提高了46.48%(P <0.05),SPC组与AA组羔羊补喂后1.5 h血浆尿素氮浓度显著提高了24.46%、22.86%(P <0.05)。(3)与对照组相比,SPC组羔羊补喂后1 h血浆生长抑素(SS)提高了16.30%(P>0.05),AA组羔羊显著提高了21.84%(P <0.05);SPC组和AA组羔羊补喂后2 h血浆生长激素(GH)显著提高了9.98%、11.89%(P <0.05);AA组羔羊补喂前0 h血浆胰岛素样生长因子-I (IGF-I)显著提高了6.96%(P <0.05);SPC组羔羊补喂后2 h血浆葡萄糖显著降低了18.20%(P <0.05)。由此可见,补喂250 mg/kg BW的SPC、50 mg/kg Arg+50 mg/kg Lys可提高血浆GH、IGF-I水平,提高哺乳期羔羊增重。This experiment aimed to investigate the effects of supplemented with soy protein concentrate(SPC)and Arginine+Lysine(Arg+Lys)on the growth and growth axis hormone levels of suckling lambs.Twenty four 7-days-old twin Hu lambs with similar weight of(6.02±0.45)kg were randomly divided into 3 groups,control group,SPC group and AA group,with 8 sheep(4 males and 4 females)in each group.The control group was supplemented with saline,the SPC group was supplemented with 250 mg/kg BW SPC,and the AA group was supplemented with 50 mg/kg BW Arg+50 mg/kg BW Lys.The trial lasted for 28 days.The results showed as follows:(1)Compared with the control group,the SPC group increased by 10.62%and 23.25%(P>0.05)at the 35 days of age body weight and 7~35 days of age average daily gain,while the AA group significantly increased by 21.06%and 47.16%(P<0.05)at the 35 days of age body weight and 7~35 days of age average daily gain.(2)Compared with the control group,the glutamine concentration in plasma of the SPC and AA groups significantly decreased by 17.65%and 20.19%,respectively(P<0.05);The urea nitrogen concentration of AA group significantly increased by 46.48%(P<0.05)at 0 hours before supplementation;while urea nitrogen concentration of SPC group and AA group significantly increased by 24.46%and 22.86%(P<0.05)at 1.5 hours after supplementation.(3)Compared with the control group,the somatostatin(SS)concentration in plasma of the SPC group increased by 16.30%(P>0.05)at 1 hour after supplementation,while the AA group significantly increased by 21.84%(P<0.05);the growth hormone(GH)concentration of the SPC and AA groups significantly increased by 9.98%and 11.89%at 2 hours after supplementation(P<0.05);The insulin like growth factor-I(IGF-I)concentration of AA group significantly increased by 6.96%at 0 hours before supplementation(P<0.05);The glucose in plasma of SPC group significantly reduced by 18.20%at 2 hours after supplementation(P<0.05).In conclusion,supplemented with 250 mg/kg BW SPC and 50 mg/kg Arg+50 mg/kg Lys could increase t

关 键 词：大豆浓缩蛋白 精氨酸 赖氨酸 羔羊 生长 生长轴激素 

分 类 号：S816.7[农业科学—饲料科学]