Potential of a combined diet containing probiotics and enzymes modulates the performance of fattening goats

IF 1.9 3区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Jiawei Lu , Zili Chen , Qin Gao , Peizhen Li , Jingang Wang , Yu Cai , Zhibo Wang , Dongxu Li , Zongyou Wei , Feng Wang , Yanli Zhang
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Abstract

This study aimed at exploring the effects of the probiotic and enzyme administration on nutrient digestibility, rumen morphology, meat quality, and carcass traits in fattening (Yangtse River Delta White) goats. Sixty goats were randomly distributed into three groups, the CON group (a basal diet), the PRO group (a probiotics diet), and the COM group (a combined diet of probiotics and enzymes). The additives amount of B. subtilis, B. licheniformis, and enzymes was 0.06 %, 0.06 %, and 0.02 %, respectively. Probiotics consisted of B. subtilis and B. licheniformis. The composition of compound enzymes was cellulase, β-glucanase, amylase, xylanase, β-mannanase, and protease. Compared with the CON group, the COM group significantly increased the NFC digestibility (P < 0.05) and tended to enlarge the NDF and ADF digestibility (P < 0.10). Rumen morphology manifested that supplementation with probiotics and enzymes predominantly elongated the width of rumen papillae and the thickness of the muscle layer and epithelial cell layer (P < 0.001). Simultaneously, the PRO group and COM group dramatically improved the intensities of b* (yellowness) (P = 0.001) and H* (hue angle) (P < 0.001) in the meat of goats. The combined diet also enriched the carcass traits of goats. Summarily, these results indicate that the combined diet improves nutrient digestibility, meat quality, and carcass traits and modulates the rumen morphology of Yangtse River Delta White goats.
含有益生菌和酶的组合饲粮的潜力调节育肥山羊的生产性能
本试验旨在探讨饲粮中添加益生菌和酶对育肥山羊营养物质消化率、瘤胃形态、肉品质和胴体性状的影响。试验选用60只山羊,随机分为CON组(基础饲粮)、PRO组(益生菌饲粮)和COM组(益生菌和酶混合饲粮)。枯草芽孢杆菌添加量为0.06%,地衣芽孢杆菌添加量为0.06%,酶添加量为0.02%。益生菌包括枯草芽孢杆菌和地衣芽孢杆菌。复合酶的组成为纤维素酶、β-葡聚糖酶、淀粉酶、木聚糖酶、β-甘露聚糖酶和蛋白酶。与CON组相比,COM组显著提高了NFC消化率(P <;0.05),并有提高NDF和ADF消化率的趋势(P <;0.10)。瘤胃形态显示,添加益生菌和酶显著延长了瘤胃乳头的宽度、肌肉层和上皮细胞层的厚度(P <;0.001)。同时,PRO组和COM组显著提高了b*(黄度)强度(P = 0.001)和H*(色相角)强度(P <;0.001)。组合日粮还丰富了山羊的胴体性状。综上所述,组合饲粮提高了长三角白山羊营养物质消化率,改善了肉品质,改善了胴体性状,调节了瘤胃形态。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Livestock Science
Livestock Science 农林科学-奶制品与动物科学
CiteScore
4.30
自引率
5.60%
发文量
237
审稿时长
3 months
期刊介绍: Livestock Science promotes the sound development of the livestock sector by publishing original, peer-reviewed research and review articles covering all aspects of this broad field. The journal welcomes submissions on the avant-garde areas of animal genetics, breeding, growth, reproduction, nutrition, physiology, and behaviour in addition to genetic resources, welfare, ethics, health, management and production systems. The high-quality content of this journal reflects the truly international nature of this broad area of research.
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