酿酒酵母和地衣芽孢杆菌对绵羊生长性能和营养物质消化代谢的影响

郑玮才; 郝小燕; 张宏祥; 陈彦华; 贺继峰; 郭沐昀; 张建新

doi:10.3969/j.issn.1006-267x.2020.11.036

动物营养学报 >

2020 , Vol. 32 >Issue 11: 5314 - 5321

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.11.036

反刍与草食动物营养与饲料 RUMINANT AND HERBIVORE NUTRITION AND FEED

酿酒酵母和地衣芽孢杆菌对绵羊生长性能和营养物质消化代谢的影响

郑玮才 ,
郝小燕 ,
张宏祥 ,
陈彦华 ,
贺继峰 ,
郭沐昀 ,
张建新

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1. 山西农业大学动物科技学院, 太谷 030801;
2. 山西祥和岭上农牧开发有限公司, 右玉 037200;
3. 山西安弘检测技术有限公司, 太原 030008

郑玮才(1995-),女,山西临汾人,硕士研究生,从事饲料资源开发和利用的研究。E-mail:928156387@qq.com

收稿日期: 2020-04-05

网络出版日期: 2020-11-16

基金资助

国家肉羊产业技术体系专项（CARS-38）；国家重点研发计划（2018YFD0502104）；山西省1331工程建设项目；山西省重点研发计划项目（201903D211012）；山西省科技成果转化引导专项（201904D131026）；现代农业产业技术体系建设专项（CARS-38）；山西农业大学畜牧学学科建设专项

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Effects of Saccharomyces cerevisiae and Bacillus licheniformis on Growth Performance and Nutrient Digestion and Metabolism in Sheep

ZHENG Weicai ,
HAO Xiaoyan ,
ZHANG Hongxiang ,
CHEN Yanhua ,
HE Jifeng ,
GUO Muyun ,
ZHANG Jianxin

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1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China;
2. Shanxi Xianghelingshang Farm Animal Husbandry Development Co., Ltd., Youyu 037200, China;
3. Shanxi Anhong Testing Technology Co., Ltd., Taiyuan 030008, China

Received date: 2020-04-05

Online published: 2020-11-16

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摘要

本试验旨在研究饲粮中添加酿酒酵母和地衣芽孢杆菌对绵羊生长性能、营养物质消化代谢和能量代谢的影响。选用48只4月龄、体重为（22.96±2.00）kg的杜泊×小尾寒羊杂交F1代公羔，随机分为4组：D组（对照组，饲喂基础饲粮）、D1组（在基础饲粮中添加6×10¹⁰ CFU/kg酿酒酵母）、D2组（在基础饲粮中添加2×10¹⁰ CFU/kg地衣芽孢杆菌）、D3组（在基础饲粮中添加6×10¹⁰ CFU/kg酿酒酵母+2×10¹⁰ CFU/kg地衣芽孢杆菌），每组12只羊。正试期结束后，采用全收粪收尿法进行消化代谢试验，连续3 d采集粪样和尿样，测定常规营养物质、尿嘌呤衍生物含量及能量。结果表明：1）饲粮中添加酿酒酵母和地衣芽孢杆菌对试验羊的终末体重及平均日采食量的影响均不显著（P>0.05），D3组的平均日增重（ADG）比D组显著提高了20.32%（P<0.05），D3组的料重比（F/G）显著低于D组（P<0.05）。2）D3组的干物质（DM）、有机物（OM）、中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）表观消化率显著高于D组（P<0.05）。3）D3组的氮表观消化率、沉积氮和氮沉积率与D组相比分别显著提高了12.04%、41.39%和40.95%（P<0.05）。4）试验组的尿囊素、黄嘌呤和次黄嘌呤和微生物蛋白含量均显著高于D组（P<0.05）。D3组的总尿嘌呤衍生物含量显著高于D组（P<0.05）。5）D组的粪能和尿能均显著高于其他3组（P<0.05），D组的甲烷能显著高于D3组（P<0.05）。综上所述，饲粮中单独添加6×10¹⁰ CFU/kg酿酒酵母和2×10¹⁰ CFU/kg地衣芽孢杆菌均会对营养物质消化代谢和能量代谢产生积极影响，可提高营养物质和能量的利用率，改善绵羊的生长性能，且二者组合饲喂效果更加显著。

关键词： 酿酒酵母; 地衣芽孢杆菌; 消化代谢; 营养物质; 能量

本文引用格式

郑玮才 , 郝小燕 , 张宏祥 , 陈彦华 , 贺继峰 , 郭沐昀 , 张建新 . 酿酒酵母和地衣芽孢杆菌对绵羊生长性能和营养物质消化代谢的影响[J]. 动物营养学报, 2020 , 32(11) : 5314 -5321 . DOI: 10.3969/j.issn.1006-267x.2020.11.036

Abstract

The objective of this experiment was to study the effects of dietary supplementation of Saccharomy cescerevisiae and Bacillus licheniformis on growth performance, nutrient digestion and metabolism and energy metabolism in sheep. A total of 48 four-month-old healthy Dorper×Small Tail Han lambs with similar body weight of (22.96±2.00) kg were randomly divided into 4 groups: D (the control group, fed a basal diet); D1 (only 6×10¹⁰ CFU/kg Saccharomyces cerevisiae was added to the basal diet), D2 (only 2×10¹⁰ CFU/kg Bacillus licheniformis was added to the basal diet) and D3 (6×10¹⁰ CFU/kg Saccharomyces cerevisiae+2×10¹⁰ CFU/kg Bacillus licheniformis were added to the basal diet), each group with 12 lambs. At end of the experiment, the digestive and metabolic tests were carried out by the method of total fecal collection and urine collection for three days, and the nutrient contents of feces, urinary purine derivatives, and energy were measured. The results showed as follows:1) the addition of Saccharomyces cerevisiae and Bacillus licheniformis in the diet had no significant effect on the final body weight and daily average feed intake of the test lambs (P>0.05), average daily gain (ADG) of group D3 was significantly higher than that of group D by 20.32% (P<0.05), and feed/gain of group D3 was significantly lower than that of group D (P<0.05). 2) The apparent digestibility of dry matter, organic matter, neutral detergent fiber and acid detergent fiber of group D3 was significantly higher than that of group D (P<0.05). 3) Compared with group D, the apparent digestibility of nitrogen, retained nitrogen and nitrogen deposition rate of group D3 were significantly increased by 12.04%, 41.39% and 40.95%, respectively (P<0.05). 4) The contents of allantoin, xanthine, hypoxanthine and microprotein in the experimental groups were significantly higher than those of group D (P<0.05). The total urine derivatives content of group D3 was significantly higher than that of group D (P<0.05). 5) The fecal energy and urine energy of group D were significantly higher than those of other three groups (P<0.05), and the methane energy of group D was significantly higher than that of group D3 (P<0.05). In conclusion, the dietary supplementation of Saccharomyces cerevisiae (6×10¹⁰ CFU/kg) and Bacillus licheniformis (2×10¹⁰ CFU/kg) has positive effects on nutrient digestion and energy metabolism, improves the utilization of nutrients and energy, improves the growth performance of lambs and promotes animal digestion and absorption. Moreover, the combination of Saccharomyces cerevisiae and Bacillus licheniformis has better effects.

Key words： Saccharomyces cerevisiae; Bacillus licheniformis; digestion and metabolism; nutrient; energy

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