Effects of Dietary Betaine on Growth Performance and Its Regulating Factors of Geese

  • YANG Yu ,
  • YANG Jingjing ,
  • WAN Yu ,
  • ZHANG Hang ,
  • YANG Zhi ,
  • YANG Haiming ,
  • WANG Zhiyue
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  • 1. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
    2. Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China

Received date: 2020-03-21

  Online published: 2020-09-17

Abstract

This experiment was conducted to study the effects of dietary betaine on growth performance, serum contents of growth hormone (GH) and insulin-like growth factor-Ⅰ (IGF-Ⅰ), slaughter performance and organ indexes of geese. A total of 360 one-day-old healthy male Jiangnan geese with similar body weight were randomly divided into 5 groups with 6 replicates per group and 12 geese per replicate. Geese in the control group (group A) were fed a basal diet,and geese in experimental groups were fed the basal diets supplemented with 0.06% (group B), 0.12% (group C), 0.18% (group D) and 0.24% betaine (group E), respectively. The experiment lasted for 28 days. The results showed as follows:1) the body weight increased linearly with the rise of betaine at 42 days of age (P<0.05); the body weight in groups C, D and E was significantly lower than that in groups A and B (P<0.05). The average daily feed intake (ADFI), average daily gain (ADG) decreased linearly with the increase of betaine, however, the feed/gain (F/G) increased linearly with the rise of betaine at 43 to 63 days of age (P<0.05). 2) The serum contents of GH and IGF-Ⅰ increased linearly with the rise of betaine at 42 days of age (P<0.05). 3) The percentage of abdominal fat and thickness of the sebum of geese decreased linearly with the increase of betaine at 63 days of age (P<0.05). 4) The liver index of geese increased linearly with the rise of betaine at 63 days of age (P<0.05). It is concluded that the diets supplemented with betaine in different periods have different effects on geese. At 1 to 42 days of age, diets supplemented with betaine can significantly increase growth performance. At 43 to 63 days of age, diets supplemented with betaine can significantly promote fat metabolism, which in turn contributes to improving carcass quality. It is suggested that the optimal betaine level in geese should be 0.18% at 1 to 42 days of age, and 0.12% at 43 to 63 days of age.

Cite this article

YANG Yu , YANG Jingjing , WAN Yu , ZHANG Hang , YANG Zhi , YANG Haiming , WANG Zhiyue . Effects of Dietary Betaine on Growth Performance and Its Regulating Factors of Geese[J]. Chinese Journal of Animal Nutrition, 2020 , 32(9) : 4140 -4147 . DOI: 10.3969/j.issn.1006-267x.2020.09.023

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