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当前位置: 首页 > 文章 > Dietary supplementation with betaine or glycine improves the carcass trait, meat quality and lipid metabolism of finishing mini-pigs 动物营养(英文) 2021,7 (2)
Position: Home > Articles > Dietary supplementation with betaine or glycine improves the carcass trait, meat quality and lipid metabolism of finishing mini-pigs Animal Nutrition 2021,7 (2)

Dietary supplementation with betaine or glycine improves the carcass trait, meat quality and lipid metabolism of finishing mini-pigs

作  者：
Yinzhao Zhong;Zhaoming Yan;Bo Song;Changbing Zheng;Yehui Duan;Xiangfeng Kong;JinPing Deng;Fengna L
单  位：
Guangdong Provincial Key Laboratory of Animal Nutrition Regulation, South China Agricultural University, Guangzhou 510642, China; University of Chinese Academy of Sciences, Beijing 100039, China;Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha 410125, China; Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha 410125, China; Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha 410125, China; Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha 410125, China;College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; Corresponding author; Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha 410125, China
关键词：
Betaine;Glycine;Meat quality;Lipid metabolism;Huan jiang mini-pi
摘  要：
The objective of the study is to evaluate and compare the effects of betaine or glycine on carcass trait, meat quality and lipid metabolism of finishing Huan Jiang mini-pigs. Betaine called trimethylglycine is a methyl derivative of glycine, but few researches were conducted to compare the impact of dietary betaine and glycine on pigs. One hundred and forty-four Huan Jiang mini-pigs (body weight = 10.55 ± 0.15 kg; 70 d) were randomly divided to 3 treatment groups (basal diet, glycine or betaine). Results indicated that dietary betaine increased the average daily gain (ADG) and final weight (P < 0.05). Dietary glycine or betaine markedly reduced average backfat thickness (P < 0.05) and heightened lean percentage (P < 0.01) compared to the control group. Moreover, in comparison with the control group, betaine significantly improved the redness (a∗) and tenderness (shear force) of the longissimus dorsi (LD) muscle (P < 0.05), whereas glycine only raised the value of a∗ of the LD muscle (P < 0.05). These results showed that diet supplemented with 0.25% betaine and equimolar amounts of glycine could regulate cascass trait and meat quality of finishing Huan Jiang mini-pigs, and the effect of betaine was superior to that of glycine.

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