饲粮添加益生菌对肉鸡生长性能、屠宰性能、免疫器官指数和养分表观代谢率的影响

doi:10.16431/j.cnki.1671-7236.2025.05.018

摘要/Abstract

摘要： 【目的】试验旨在评估嗜酸乳杆菌(Lactobacillus acidophilus,LA)E、戊糖片球菌(Pediococcus pentosaceus,PP)JQ-M3和植物乳杆菌(Lactobacillus plantarum,LP)FRT4在AA肉鸡上的应用效果。【方法】选取240只1日龄爱拔益加(Arbor Acres,AA)肉鸡，随机分为4组，每组6个重复，每个重复10只鸡。其中，对照组提供基础饲粮，3个试验组分别在基础饲粮中添加5×10⁶ CFU/g嗜酸乳杆菌E(LA组)、戊糖片球菌JQ-M3(PP组)和植物乳杆菌FRT4(LP组)。试验期42 d，研究3种益生菌对肉鸡生长性能、屠宰性能、免疫器官指数和养分表观代谢率的影响。【结果】①1～21、22～42和1～42 d肉鸡终末体重(BW)、平均日增重(ADG)、平均日采食量(ADFI)和料重比(F/G)在各组之间均无显著差异(P＞0.05)。②与对照组相比，LA组肉鸡全净膛率显著升高(P＜0.05)，LP组腹脂率显著降低(P＜0.05)，其他屠宰性能指标在各组间无显著差异(P＞0.05)。③PP组肉鸡法氏囊指数显著高于对照组(P＜0.05)，脾脏指数在各组间无显著差异(P＞0.05)。④LA组肉鸡粗蛋白质表观代谢率和LP组肉鸡粗脂肪表观代谢率与对照组相比均显著提高(P＜0.05)；各组间总能和干物质表观代谢率均无显著差异(P＞0.05)。【结论】饲粮中添加戊糖片球菌JQ-M3能够提高AA肉鸡法氏囊指数，添加嗜酸乳杆菌E和植物乳杆菌FRT4有利于提高AA肉鸡消化代谢能力，改善屠宰性能。

关键词: 益生菌; AA肉鸡; 生长性能; 屠宰性能; 免疫器官指数; 表观代谢率

Abstract: 【Objective】 This study was conducted to evaluate the effects of Lactobacillus acidophilus (LA) E,Pediococcus pentosaceus (PP) JQ-M3 and Lactobacillus plantarum (LP) FRT4 on AA broilers.【Method】 Two hundred and forty 1-day-old AA broilers were selected and randomly divided into four groups with six replicates in each group and 10 chickens in each replicate.The broilers in control group were fed a basal diet,and in three experimental groups were fed diets supplemented with Lactobacillus acidophilus E (LA group),Pediococcus pentosaceus JQ-M3 (PP group),and Lactobacillus plantarum FRT4 (LP group),respectively,at a level of 5×10⁶ CFU/g in the basal diet.The experimental period was 42 d.The effects of three probiotics on growth performance,slaughter performance,immune organ index and nutrient apparent metabolic rate of broilers were studied.【Result】 ①There was no significant difference in BW,ADG,ADFI and F/G among all the groups in 1-21,22-42 and 1-42 d (P＞0.05).②Compared with control group,the rate of total clean rump was significantly higher in LA group (P＜0.05),the rate of belly fat was significantly lower in LP group (P＜0.05),and other slaughtering performance indicators had no significant difference among all the groups (P＞0.05).③Bursa of Fabricius index was significantly higher in PP group than that in control group (P＜0.05),and spleen index had no significantl difference among all the groups (P＞0.05).④The apparent metabolic rate of crude protein in broilers of LA group and the corresponding indicator of ether extract in LP group were significantly higher compared with control group (P＜0.05),and there was no significant difference in the apparent metabolic rate of total energy and dry matter between the groups (P＞0.05).【Conclusion】 Adding Pediococcus pentosaceus JQ-M3 to the feed could improve the bursa of Fabricius index in AA broilers.Adding Lactobacillus acidophilus E and Lactobacillus plantarum FRT4 were beneficial for improving the digestive capacity and slaughter performance of AA broilers.

Key words: probiotics; AA broilers; growth performance; slaughter performance; immune organ index; apparent metabolic rate

中图分类号:

S816.7

边智尧, 刘国华, 韩帅娟, 陈志敏, 郑爱娟. 饲粮添加益生菌对肉鸡生长性能、屠宰性能、免疫器官指数和养分表观代谢率的影响[J]. 中国畜牧兽医, 2025, 52(5): 2140-2148.

BIAN Zhiyao, LIU Guohua, HAN Shuaijuan, CHEN Zhimin, ZHENG Aijuan. Effect of Dietary Probiotics Supplementation on Growth Performance, Slaughter Performance,Immune Organ Index and Apparent Metabolic Rate of Nutrients in Broilers[J]. China Animal Husbandry and Veterinary Medicine, 2025, 52(5): 2140-2148.

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