Molecular Nutrition

Effects of Betaine and L-Carnitine on Growth Performance, Slaughter Performance, Organ Development and Fat Deposition of Mongolia Hybrid Sheep

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  • 1. Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    2. Inner Mongolia He Tao Institute of Agriculture and Animal Husbandry Technology, Bayannur 015000, China;
    3. Bayannur Academy of Agricultural and Animal Husbandry Sciences, Bayannur 015000, China

Received date: 2018-05-17

  Online published: 2018-12-19

Abstract

The aim of this study was to evaluate the effects of betaine and L-carnitine on growth performance, slaughter performance, organ development and fat deposition of Mongolia hybrid sheep. The single factor design was used in the experiment, a total of 270 Mongolia hybrid sheep with a body weight of (29.0±0.4) kg were randomly assigned into 3 groups with 3 replicates in each group and 30 sheep in each replicate. Sheep in the control group (CON group) were fed a basal diet, and others in the betaine group (BN group) and the L-carnitine group (L-CN group) were fed the basal diets supplemented with 1‰ betaine and 0.4‰ L-carnitine, respectively. The pre-experimental period lasted for 15 days, and the experimental period lasted for 40 days. The results showed as follows: 1) the average daily feed intake of L-CN group was significantly lower than that of CON group and BN group (P<0.05), and the rest growth performance indicators were no significant differences among all groups (P>0.05). 2) There were no significant differences in live weight before slaughter, carcass weight, dressing percentage, eye muscle area and carcass fat content value among all groups (P>0.05). 3) There were no significant differences in internal organ development indices among all groups (P>0.05). 4) The large intestine weight and its percentage of live weight before slaughter of L-CN group were significantly lower than those of CON group (P<0.05), and the rest gastrointestinal development indices were no significant differences among all groups (P>0.05). 5) The total fat weight and its percentage of live weight before slaughter of BN group and L-CN group were significantly lower than those of CON group (P<0.05), the total fat weight and its percentage of live weight before slaughter of L-CN group were significantly higher than those of BN group (P<0.05); the tail fat weight and its percentage of live weight before slaughter of CON group were significantly higher than those of BN group (P<0.05); there were no significant differences in rumen fat, intestines fat, pericardial fat and perirenal fat weight and their percentage of live weight before slaughter among all groups (P>0.05). The results shows that dietary betaine and L-carnitine can reduce the fat deposition of Mongolia hybrid sheep, and mainly reduce the weight of tail fat, which provs that betaine and L-carnitine play an important role in reducing body fat in Mongolia hybrid sheep.

Cite this article

YANG Dong, WANG Wenyi, MA Tao, WAN Fan, WANG Yunfei, TAN Jun, ZHANG Juan, DIAO Qiyu . Effects of Betaine and L-Carnitine on Growth Performance, Slaughter Performance, Organ Development and Fat Deposition of Mongolia Hybrid Sheep[J]. Chinese Journal of Animal Nutrition, 2018 , 30(12) : 5134 -5144 . DOI: 10.3969/j.issn.1006-267x.2018.12.042

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