饲粮中添加不同植物精油对肉仔鸡生长性能、肠道发育、免疫器官指数及屠宰性能的影响

发布时间：2018-02-24 02:39

本文关键词： 植物精油生长性能屠宰性能肠道发育免疫器官肉仔鸡　出处：《动物营养学报》2017年04期 　论文类型：期刊论文

【摘要】：本试验通过在基础饲粮中添加不同植物精油产品,旨在研究其对肉仔鸡生长性能、肠道发育、免疫器官指数及屠宰性能的影响。选取1日龄罗斯308商品肉仔鸡公雏2 304只,随机分为6个组,每个组12个重复,每个重复32只。1组为对照组,饲喂基础饲粮;2组为负对照组,在基础饲粮中添加抗生素(20 mg/kg维吉尼亚霉素);3~6组在基础饲粮中各添加1种植物精油产品,分别为100 mg/kg植物精油1(含5%香芹酚,EO1组)、300 mg/kg植物精油2(含5%香芹酚,EO2组)、300 mg/kg植物精油3(含8%香芹酚和百里香酚混合物,EO3组)以及300 mg/kg植物精油4(含2%香芹酚和百里香酚混合物,EO4组)。试验期39 d。结果表明:1)与对照组相比,负对照组以及EO2组肉仔鸡22~31日龄料重比显著降低(P0.05),分别降低了2.58%、3.51%;与对照组相比,负对照组肉仔鸡1~38日龄平均日增重升高,料重比降低,但差异均不显著(P0.05);饲粮中添加不同植物精油未显著影响肉仔鸡1~38日龄平均日增重、平均日采食量和料重比(P0.05)。2)与对照组相比,饲粮中添加不同植物精油有提高肉仔鸡39日龄十二指肠绒毛高度的趋势(P=0.075 3),绒毛高度/隐窝深度值也有所提高(P0.05)。3)各组之间肉仔鸡22和39日龄脾脏指数和法氏囊指数均差异不显著(P0.05)。各组之间肉仔鸡胴体出成率、胸肌率、腿肌率、翅重率以及腹脂率均差异不显著(P0.05)。由此可见,本试验条件下,饲粮中添加不同植物精油对肉仔鸡生长性能的改善不显著,但可促进十二指肠绒毛发育。
[Abstract]:In this experiment, the effects of different plant essential oil products on growth performance, intestinal development, immune organ index and slaughtering performance of broilers were studied by adding different plant essential oil products into the basal diet. 2 304 male broilers of 1 day old Roth308 commercial broiler were selected. They were randomly divided into 6 groups, each group with 12 duplicates, each with 32 repeats as the control group, and the basal diet group 2 as the negative control group. One plant essential oil product was added to the basal diet with the addition of antibiotics for 20 mg/kg to the basal diet, and one plant essential oil product was added to the basal diet. 100 mg/kg plant essential oil 1 (containing 5% carvinol EO1 group and 300 mg/kg plant essential oil 2 (5% carvinol EO 2 group) 3 (containing 8% carvinol and thymol mixture EO 3 group) and 300 mg/kg plant essential oil 4 (containing 2% carvinol and 100 mg/kg essential oil). The experimental period was 39 days. The results showed that the ratio of 1 to 1 was higher than that of the control group. Compared with the control group, the average daily gain (ADG) and feed weight ratio (FW) of the negative control group and the EO2 group were significantly lower than that of the control group, and the average daily gain and feed weight ratio of the negative control group were significantly lower than those of the control group, respectively, and the ratio of feed to weight of the negative control group was significantly lower than that of the control group. However, the difference was not significant (P 0.05), and the average daily gain (ADG) was not significantly affected by adding different plant essential oils to the diet, and the average daily gain (ADG) of broilers was higher than that of the control group (P 0.05 路2), and the average daily intake and feed weight ratio (P 0.05) were higher than those in the control group (P < 0.05). Dietary supplementation of different plant essential oils had a tendency to increase the duodenal villus height of 39-day-old broilers, and the villi height / crypt depth also increased (P0.05. 3) the spleen index and the bursa finger of bursa Fabricius at 22 and 39 days of age were also increased in broilers. There was no significant difference in the number of the broilers (P 0.05). The carcass yield of broilers among the groups was higher than that in the control group. There was no significant difference in pectoralis ratio, leg muscle rate, wing weight rate and abdominal fat rate. It can be seen that the growth performance of broilers fed with different vegetable essential oils was not significantly improved, but could promote the development of duodenal villi.
【作者单位】：新希望六和股份有限公司;中国农业大学动物科技学院;
【基金】：山东省泰山产业领军人才工程高效生态农业创新类项目(LJNY2015006)
【分类号】：S831.5

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