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

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

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

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

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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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

Cite this article

ZHENG Weicai , HAO Xiaoyan , ZHANG Hongxiang , CHEN Yanhua , HE Jifeng , GUO Muyun , ZHANG Jianxin . Effects of Saccharomyces cerevisiae and Bacillus licheniformis on Growth Performance and Nutrient Digestion and Metabolism in Sheep[J]. Chinese Journal of Animal Nutrition, 2020 , 32(11) : 5314 -5321 . DOI: 10.3969/j.issn.1006-267x.2020.11.036

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