猪与禽营养 Swine and poultry nutrition

枯草芽孢杆菌对石门土鸡生长性能、屠宰性能、血清抗氧化指标和肠道形态的影响

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  • 1. 湖南农业大学动物科学技术学院, 长沙 410128;
    2. 湖南省畜禽安全生产协同创新中心, 长沙 410128;
    3. 湖南家禽安全生产工程技术研究中心, 长沙 410128;
    4. 朝日可尔必思健康管理有限公司, 东京 1500022;
    5. 上海牧冠企业发展有限公司, 上海 201199
彭豫东(1992-),男,河南周口人,硕士研究生,研究方向为家禽营养与安全生产。E-mail:190323672@qq.com

收稿日期: 2018-10-12

  网络出版日期: 2019-05-15

基金资助

湖南畜禽安全生产协同创新中心专项资金(CICAPS);湖南农业大学产学研合作项目(13098)

Effects of Bacillus subtilis on Growth Performance, Slaughter Performance, Serum Antioxidant Indexes and Intestinal Morphology of Shimen Chickens

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  • 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China;
    3. Hunan Engineering Research Center of Poultry Production Safety, Changsha 410128, China;
    4. Asahi Calpis Wellness Co., Ltd., Tokyo 1500022, Japan;
    5. Shanghai Naseco Products Company, Shanghai 201199, China

Received date: 2018-10-12

  Online published: 2019-05-15

摘要

本试验旨在研究饲粮中添加枯草芽孢杆菌(Bacillus subtilis,BS)对石门土鸡生长性能、屠宰性能、血清抗氧化指标和肠道形态的影响。选取540只55日龄、体重[(0.75±0.02) kg]相近的健康石门土鸡母鸡,随机分成3组,每组6个重复,每个重复30只鸡。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮的基础上添加300和600 mg/kg BS的试验饲粮。预试期7 d,正试期28 d。结果表明:1)1~14 d时,与对照组相比,300、600 mg/kg BS组石门土鸡的平均日采食量(ADFI)和平均日增重(ADG)有提高趋势(P>0.05);15~28 d和1~28 d时,各组间的ADFI、ADG和料重比(F/G)均无显著差异(P>0.05)。2)与对照组相比,600 mg/kg BS组石门土鸡的屠宰率显著提高(P<0.05),300、600 mg/kg BS组的腹脂率有提高趋势(P>0.05);各组间的半净膛率、全净膛率、胸肌率、腿肌率均无显著差异(P>0.05)。3)与对照组相比,14 d时,300 mg/kg BS组石门土鸡的血清总超氧化物歧化酶(T-SOD)活性显著提高(P<0.05);14和28 d时,300、600 mg/kg BS组的血清谷胱甘肽过氧化物酶(GSH-Px)活性极显著提高(P<0.01)。4)与对照组相比,300、600 mg/kg BS组石门土鸡的十二指肠绒毛高度、绒毛宽度、隐窝深度均有提高趋势(P>0.05),300 mg/kg BS组的空肠绒毛宽度显著提高(P<0.05);各组间的回肠绒毛宽度、隐窝深度和绒隐比均无显著差异(P>0.05)。综上,饲粮中添加BS提高了石门土鸡的屠宰性能,增强了机体抗氧化能力,改善了肠道形态。

本文引用格式

彭豫东, 康克浪, 曲湘勇, 贺长青, 陈继发, 彭灿阳, YASUHIRO Sakai, 周学彬 . 枯草芽孢杆菌对石门土鸡生长性能、屠宰性能、血清抗氧化指标和肠道形态的影响[J]. 动物营养学报, 2019 , 31(5) : 2119 -2126 . DOI: 10.3969/j.issn.1006-267x.2019.05.018

Abstract

The purpose of this study was to investigate the effects of dietary Bacillus subtilis (BS) on growth performance, slaughter performance, serum antioxidant indexes and intestinal morphology of Shimen chickens. A total of 540 55-day-old healthy Shimen female chickens with similar body weight of (0.75±0.02) kg were randomly divided into 3 groups with 6 replicates per group and 30 chickens per replicate. Chickens in control group were fed a basal diet, and the others in experimental groups were fed the basal diet supplemented with 300 and 600 mg/kg BS, respectively. The adjustment period lasted for 7 days, and the experimental period lasted for 28 days. The results showed as follows: 1) compared with control group, average daily feed intake (ADFI) and average daily gain (ADG) of Shimen chickens in 300 and 600 mg/kg BS groups had an increasing trend from 1 to 14 days (P>0.05). There were no significant differences in ADFI, ADG and the ratio of feed to gain (F/G) among all groups from 15 to 28 days and 1 to 28 days (P>0.05). 2) Compared with control group, dressing percentage of Shimen chickens in 600 mg/kg BS group was significantly increased (P<0.05), and abdominal fat percentage in 300 and 600 mg/kg BS groups had an increasing trend (P>0.05). There were no significant differences in semi-eviscerated percentage, eviscerated percentage, breast muscle percentage and leg muscle percentage among all groups (P>0.05). 3) Compared with control group, the activity of total superoxide dismutase (T-SOD) in serum of Shimen chickens in 300 mg/kg BS group was significantly increased at 14 days (P<0.05), and the activity of glutathione peroxidase (GSH-Px) in serum in 300 and 600 mg/kg BS groups was significantly increased at 14 and 28 days (P<0.01). 4) Compared with control group, villus height, fluff width and crypt depth of duodenum of Shimen chickens in 300 and 600 mg/kg BS groups had an increasing trend (P>0.05), and fluff width of jejunum in 300 mg/kg BS group was significantly increased (P<0.05). There were no significant differences in fluff width, crypt depth and the ratio of villus height to crypt depth of ileum among all groups (P>0.05). In conclusion, dietary BS improves slaughter performance, enhances antioxidant capacity and improves intestinal morphology of Shimen chickens.

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