沙棘果渣对育肥羔羊生长性能、器官指数、血清生化指标和肌内脂肪酸组分的影响

发布时间：2018-08-27 19:05

【摘要】：本试验旨在研究饲粮中添加沙棘果渣对育肥羔羊生长性能、器官指数、血清生化指标和肌内脂肪酸组分的影响。选取24只3月龄杜泊×小尾寒羊杂交公羔[(25±1)kg],随机分为4组,每组6只羊。各组分别饲喂含有0(对照)、10%、20%和30%沙棘果渣的试验饲粮。试验期50 d。结果表明:1)10%和20%水平组羔羊的宰前活重显著高于对照组和30%水平组(P0.05),10%水平组羔羊的平均日增重显著高于其他各组(P0.05),20%水平组羔羊的平均日采食量显著高于其他各组(P0.05),10%水平组羔羊的料重比显著低于其他各组(P0.05)。2)30%水平组羔羊的肝脏、脾脏指数显著高于其他各组(P0.05),网胃指数显著低于其他各组(P0.05)。10%、20%和30%水平组羔羊的大肠和小肠指数显著高于对照组(P0.05)。3)30%水平组羔羊的血清高密度脂蛋白(HDL)含量显著高于其他各组(P0.05),10%、20%和30%水平组羔羊的动脉粥样硬化指数(AI)显著低于对照组(P0.05),10%、20%和30%水平组羔羊的血清总抗氧化能力(T-AOC)、谷胱甘肽过氧化物酶(GSH-Px)和超氧化物歧化酶(SOD)活性显著高于对照组(P0.05),30%水平组羔羊的血清谷草转氨酶(AST)、谷丙转氨酶(ALT)、乳酸脱氢酶(LDH)活性及肌酐(CRE)和尿素氮(UN)含量显著高于其他各组(P0.05)。4)10%、20%和30%水平组羔羊的背最长肌中亚油酸、反油酸、花生四烯酸、总多不饱和脂肪酸(ΣMUFA)和总不饱和脂肪酸(ΣUFA)比例显著高于对照组(P0.05),油酸、总饱和脂肪酸(ΣSFA)和总单不饱和脂肪酸(ΣPUFA)比例显著低于对照组(P0.05)。由此可见,育肥羔羊饲粮中添加沙棘果渣有利于其生长发育和生长性能的提高,适宜添加水平为10%~20%。
[Abstract]:The purpose of this study was to study the effects of seabuckthorn fruit residue on growth performance, organ index, serum biochemical index and intramuscular fatty acid composition of fattening lambs. 24 3-month-old Dupo 脳 small tail Han lambs [(25 卤1) kg] were randomly divided into 4 groups, 6 sheep in each group. Each group was fed with 20% and 30% seabuckthorn residue respectively. The trial period was 50 days. The results showed that the average daily gain of lambs in 10% and 20% groups was significantly higher than that in the control group and 30% group (P0.05). The average daily gain of lambs in 10% group was significantly higher than that in the other groups (P0.05) and the average daily feed intake of the lambs in 20% level group was significantly higher than that in the other groups. (P0.05) the feed weight ratio of lambs in the 10% group was significantly lower than that in the other groups (P0.05), and the liver of the lambs in the 30% level group was significantly lower than that in the other groups. Spleen index was significantly higher than that of other groups (P0.05), reticulum index was significantly lower than that of other groups (P0.05). 10% and 30% of lambs had significantly higher serum HDL (HDL) content than control group (P0.05) 30%. The atherosclerosis index (AI) of lambs in 20% and 30% groups of other groups (P0.05) was significantly lower than that in the control group (P0.05). The serum total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activity were significantly lower in the lambs of 20% and 30% groups than those in the control group (P0.05). The activities of serum glutamic oxaloacetic transaminase (AST), alanine aminotransferase (ALT),) lactate dehydrogenase (LDH), creatinine (CRE) (CRE) and urea nitrogen (UN) in the lambs were significantly higher than those in the other groups (P0.05) 20% and 30%, respectively, and linoleic acid in the longissimus dorsi muscle of the lambs was significantly higher than that of the other groups (P0.05). The ratios of reverse oleic acid, arachidonic acid, total polyunsaturated fatty acid (危 MUFA) and total unsaturated fatty acid (危 UFA) were significantly higher than those of the control group (P0.05). The ratios of oleic acid, total saturated fatty acid (危 SFA) and total monounsaturated fatty acid (危 PUFA) were significantly lower than those of the control group (P0.05). It can be seen that the addition of seabuckthorn fruit residue to the diet of fattening lambs is beneficial to the improvement of its growth development and growth performance, and the appropriate addition level is 10 ~ 20%.
【作者单位】：山西农业大学动物科技学院;山西省右玉县畜牧局;
【基金】：国家现代肉羊技术体系专项(CARS-39) 山西省重点研发专项(201603D21107-2) 山西省协同创新中心项目
【分类号】：S826.5

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