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
梅莹莹 1张文杰 1张亚倩 1杨璐宽 1刘志强 2汪建国 2曹志军 3杨开伦1
作者信息
- 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
- 折叠
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.
Abstract
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 A A 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 the GH and IGF-Ⅰ levels in plasma,and improve the weight gain of suckling lambs.
关键词
大豆浓缩蛋白/精氨酸/赖氨酸/羔羊/生长/生长轴激素Key words
soy protein concentrate/arginine/lysine/lambs/growth/growth axis hormone引用本文复制引用
基金项目
新疆维吾尔自治区"农区高效肉羊品种选育推广体系"(xjnqryg-2302)
出版年
2024
国家科技期刊平台
NSTL
万方数据