八角及其精油和残渣对肉仔鸡生长性能、肠道发育和养分利用率的影响

发布时间：2018-05-16 19:53

本文选题：八角 + 八角精油　；参考：《动物营养学报》2017年03期

【摘要】：本试验旨在研究八角及其精油和残渣对肉仔鸡生长性能、肠道发育和养分利用率的影响。采用单因素完全随机试验设计,将1日龄爱拔益加肉仔鸡384只随机分为4组,每组12个重复,每个重复8只。对照组肉仔鸡饲喂玉米-豆粕型基础饲粮,试验组肉仔鸡分别饲喂在基础饲粮的基础上添加5 g/kg八角(八角组)、0.2 g/kg八角精油(精油组)和5 g/kg八角残渣(残渣组)的饲粮。八角组和精油组饲粮中反式茴香脑含量为0.204 g/kg,对照组和残渣组饲粮中反式茴香脑含量低于0.005 g/kg。试验期21 d。结果表明:1)八角组和精油组肉仔鸡平均日增重和平均日采食量显著高于对照组(P0.05),残渣组与对照组没有显著差异(P0.05)。与对照组和残渣组相比,饲粮中添加八角和八角精油显著提高了肉仔鸡21日龄体重(P0.05)。2)与对照组和残渣组相比,八角组和精油组肉仔鸡空肠的相对长度显著提高(P0.05),同时精油组小肠的相对重量显著提高(P0.05);此外,八角组和精油组肉仔鸡空肠的相对重量显著高于对照组(P0.05)。3)与对照组和残渣组相比,饲粮中添加八角和八角精油显著提高了十二指肠和空肠的绒毛高度(P0.05)。4)精油组粗蛋白质的表观和真实利用率及表观和真实代谢能均显著高于其余各组(P0.05)。由此可见,饲粮中添加5 g/kg八角或0.2 g/kg八角精油均可改善肉仔鸡的生长性能、肠道发育,并提高肉仔鸡对养分的消化利用,而添加5 g/kg八角残渣没有此作用效果。
[Abstract]:The purpose of this experiment was to study the effects of anise, its essential oil and residue on growth performance, intestinal development and nutrient utilization efficiency of broilers. A single factor complete randomized trial design was used to divide 384 1-day-old Aipai plus broiler chickens into 4 groups with 12 replicates in each group and 8 chickens in each group. The control group was fed with corn-soybean meal diet, and the experimental group was fed with 5 g/kg anise oil (essential oil group) and 5 g/kg anise residue (residue group) on the basis of basal diet. The content of trans anisole in anise and essential oil group was 0.204 g / kg, and the content of trans anisole in diet of control group and residue group was lower than 0.005 g / kg. The experimental period was 21 days. The results showed that the average daily gain (ADG) and average daily feed intake (ADFI) of the anise group and the essential oil group were significantly higher than that of the control group (P 0.05), but there was no significant difference between the residue group and the control group. Compared with the control group and the residue group, the diet supplemented with essential oil of anise and anise significantly increased the body weight of the broilers at 21 days of age (P0.05U. 2) compared with the control group and the residue group. The relative length of jejunum in anise group and essential oil group increased significantly, while the relative weight of small intestine in essential oil group increased significantly. The relative weight of jejunum in anise group and essential oil group was significantly higher than that in control group (P0.05. 3) compared with control group and residue group. The crude protein apparent and true utilization ratio, apparent and real metabolic energy of the essential oil group were significantly higher than those of the other groups. It can be seen that adding 5 g/kg or 0.2 g/kg essential oil to the diet can improve the growth performance and intestinal development of broilers, and improve the digestibility and utilization of nutrients in broilers, but the addition of 5 g/kg anise residue has no effect on the growth performance, intestinal development and nutrient utilization of broilers.
【作者单位】：山东农业大学动物科技学院;
【基金】：公益性行业(农业)科研专项经费(201403047)
【分类号】：S831.5

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