研究简报 Short communications

益生菌对乳鸽生长性能、血清生化指标及肠道功能的影响

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  • 1. 东北农业大学动物科学技术学院, 哈尔滨 150030;
    2. 浙江省农业科学院畜牧兽医研究所, 杭州 310021;
    3. 湖州华嘉特种养殖有限公司, 湖州 313000;
    4. 杭州康德权饲料有限公司, 杭州 311107
袁文华(1993-),女,河南周口人,硕士研究生,研究方向为单胃动物营养与饲料科学。E-mail:18846089683@163.com

收稿日期: 2018-05-02

  网络出版日期: 2018-11-20

基金资助

浙江省农业(畜禽)新品种选育重大科技专项(2016C02054-16);浙江省农业科学院地方科技合作项目(WZ2017002)

Effects of Probiotics on Growth Performance, Serum Biochemical Indexes and Intestinal Function of Squabs

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  • 1. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China;
    2. Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;
    3. Huzhou Huajia Special Breeding Ltd., Huzhou 313000, China;
    4. Hangzhou Kangdequan Feed Ltd., Hangzhou 311107, China

Received date: 2018-05-02

  Online published: 2018-11-20

摘要

本试验旨在研究丁酸梭菌和乳酸菌对乳鸽生长性能、血清生化指标、小肠消化酶活性及肠道形态的影响。选取相同繁殖周期的种鸽84对和同日出雏的1日龄乳鸽252只,每对种鸽哺育3只乳鸽,随机分成7组,每组6个重复,每个重复2对种鸽和6只乳鸽。对照组(A组)饲喂基础饲粮,抗生素组(B组)在基础饲粮中添加150 mg/kg金霉素,试验组(C、D、E、F、G组)分别在基础饲粮中添加5×107、1×108、2×108 CFU/kg丁酸梭菌,5×109 CFU/kg乳酸菌和5×109 CFU/kg乳酸菌+1×108 CFU/kg丁酸梭菌。试验期28 d。结果表明:1)G组乳鸽15~28日龄、1~28日龄时的平均日增重及28日龄时的体重显著高于对照组(P<0.05),与抗生素组相比无显著差异(P>0.05)。2)与对照组和抗生素组相比,除E组乳鸽的血清总蛋白(TP)和总胆固醇(TC)含量外,丁酸梭菌和乳酸菌显著提高血清TP和白蛋白(ALB)含量(P<0.05),显著降低血清TC含量(P<0.05);G组的血清甘油三酯(TG)和尿素氮(UN)含量显著低于对照组(P<0.05)。3)与对照组和抗生素组相比,G组乳鸽的十二指肠内容物中胰蛋白酶、脂肪酶、淀粉酶活性和C组的十二指肠内容物中淀粉酶活性显著升高(P<0.05)。4)与对照组相比,G组乳鸽的十二指肠、空肠、回肠绒毛高度及绒毛高度/隐窝深度(V/C)显著升高,隐窝深度显著降低(P<0.05);D和G组的十二指肠黏膜厚度显著升高(P<0.05);C和D组的空肠、回肠隐窝深度显著降低(P<0.05)。与抗生素组相比,G组的十二指肠黏膜厚度及空肠、回肠V/C显著升高(P<0.05)。综上所述,在种鸽饲粮中添加丁酸梭菌和乳酸菌能促进乳鸽生长,改善血清生化指标,提高小肠消化酶活性,且对乳鸽的肠道形态有很好的改善作用。在本试验条件下,丁酸梭菌和乳酸菌复合添加的效果优于单独添加,且单独添加以D组的效果为最好。

本文引用格式

袁文华, 李国勤, 赵文文, 袁慧坤, 周雪勤, 李浙烽, 侯嘉, 卢立志, 刁新平 . 益生菌对乳鸽生长性能、血清生化指标及肠道功能的影响[J]. 动物营养学报, 2018 , 30(11) : 4721 -4728 . DOI: 10.3969/j.issn.1006-267x.2018.11.050

Abstract

This study was designed to investigate the effects of Clostridium butyrate and Lactobacillus on growth performance, serum biochemical indexes, intestinal digestive enzymes activities and intestinal morphology of squabs. Eight-four pairs of pigeons during the same breeding period and 252 1-day-old squabs were selected, and 3 squabs were fed by 1 pair of pigeons. The pigeons and squabs were randomly divided into 7 groups with 6 replicates per group and 2 pairs of pigeons and 6 squabs per replicate. Pigeons in control group (group A) were fed a basal diet, those in antibiotic group (group B) were fed the basal diet supplemented with 150 mg/kg chlortetracycline, and the others in experimental groups (groups C, D, E, F and G) were fed the basal diets supplemented with 5×107, 1×108, 2×108 CFU/kg Clostridium butyrate, 5×109 CFU/kg Lactobacillus and 5×109 CFU/kg Lactobacillus+1×108 CFU/kg Clostridium butyrate, respectively. The experiment lasted for 28 days. The results showed as follows:1) average daily gain at 15 to 28 days of age and 1 to 28 days of age and body weight at 28 days of age of squabs in group G were significantly higher than those in control group (P<0.05), but there were no significant differences between group G and antibiotic group (P>0.05). 2) Compared with control group and antibiotic group, Clostridium butyrate and Lactobacillus significantly increased the contents of total protein (TP) and albumin (ALB) in serum and significantly decreased the content of total cholesterol (TC) in serum of squabs except for the contents of TP and TC in serum in group E (P<0.05). The contents of triglyceride (TG) and urea nitrogen (UN) in serum in group G were significantly lower than those in control group (P<0.05). 3) Compared with control group and antibiotic group, the activities of trypsin, lipase and amylase in duodenal contents of squabs in group G and the activity of amylase in duodenal contents in group C were significantly increased (P<0.05). 4) Compared with control group, villus height and the ratio of villus height to crypt depth (V/C) of duodenum, jejunum and ileum of squabs in group G were significantly increased (P<0.05), and the crypt depth of duodenum, jejunum and ileum in group G was significantly decreased (P<0.05). Compared with control group, the mucosal thickness of duodenum in groups D and G was significantly increased (P<0.05), and the crypt depth of jejunum and ileum in groups C and D was significantly decreased (P<0.05). Compared with antibiotic group, the mucosal thickness of duodenum and V/C of jejunum and ileum in group G were significantly increased (P<0.05). In conclusion, adding Clostridium butyrate and Lactobacillus in pigeons diets can promote growth, improve serum biochemical indexes, increase the activities of intestinal digestive enzymes and improve intestinal morphology of squabs. Under present experimental condition, the effects of compound addition of Clostridium butyrate and Lactobacillus are better than those of single addition, and group D has the best effect among single addition.

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