FEED SCIENCE AND TECHNOLOGY

Effects of Baclicus lincheniformis on Methane Emission, Digestion and Metabolism of Mutton Sheep

  • XIAO Yi ,
  • TAO Dayong ,
  • ZHAO Mingming ,
  • ZHAO Jiangbo ,
  • MA Tao ,
  • TU Yan ,
  • DIAO Qiyu
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  • 1. College of Animal Science, Tarim University, Alaer 843300, China;
    2. Feed Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture, Beijing 100081, China

Received date: 2015-08-14

  Online published: 2016-02-19

Abstract

This study was conducted to investigate the effects of dietary supplementation of different levels of Baclicus lincheniformis on methane emission, digestion and metabolism of mutton sheep, with an aim to provide reference of probiotics for reducing methane emission and improving energy efficiency. Twenty-four healthy Dorper ()×thin-tailed Han (♀) crossbred adult wethers (F1) with an average body weight of (45.00±1.96) kg were randomly divided into 4 groups with 6 sheep in each group and each wether as one replicate by an one-factor design, and fed one of the following 4 diets:a basal diet (control group) and the basal diet supplemented with 2.4×108 (low dose group), 2.4×109 (medium dose group) and 2.4×1010 CFU/d (high dose group) Baclicus lincheniformis per lamb. The experiment lasted for 20 days, including an 8-day adaptation period, and for the following 12 days, methane emission was measured using open-circuit respirometry system and the feces and urine were collected for measuring digestion and metabolism indices. The results showed as follows:1) compared with control group, the supplementation of Baclicus lincheniformis with 2.4×108 and 2.4×109 CFU/d significantly reduced methane emission on the basis of dry matter intake and metabolic body weight[L/(kg W0.75·kg DMI)] by 5.18% and 9.33% (P<0.05), respectively. 2) Compared with control group, the supplementation of Baclicus lincheniformis significantly increased the apparent digestibility of dry matter, organic matter, neutral detergent fibre, acid detergent fibre (ADF, except low dose group) and nitrogen, and retained nitrogen (P<0.05), and significantly improved dietary digestible and metabolizable energy (P<0.05). In conclusion, dietary supplementation of Baclicus lincheniformis can effectively reduce methane emission of sheep, and improve the digestibility of nutrients, all together improve utilization efficiency of dietary energy.

Cite this article

XIAO Yi , TAO Dayong , ZHAO Mingming , ZHAO Jiangbo , MA Tao , TU Yan , DIAO Qiyu . Effects of Baclicus lincheniformis on Methane Emission, Digestion and Metabolism of Mutton Sheep[J]. Chinese Journal of Animal Nutrition, 2016 , 28(2) : 515 -523 . DOI: 10.3969/j.issn.1006-267x.2016.02.025

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