Effects of Normal Corn Replacement by High Amylose Corn on Growth Performance, Nutrient Apparent Digestibility and Blood Biochemical and Physiological Indexes of Weaning Goats

  • CHEN Kai ,
  • LIU Yong ,
  • RAN Tao ,
  • HE Jianhua ,
  • HE Zhixiong ,
  • TAN Zhiliang
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  • 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. South Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory for Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China;
    3. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2020-07-20

  Online published: 2021-02-04

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Abstract

This experiment was conducted to study the effects of normal corn replacement by high amylose corn on growth performance, nutrient apparent digestibility and blood biochemical and physiological indexes of weaning goats. Twenty-seven Xiangdong black goats with an average body weight of (8.97±0.19) kg were divided into 3 groups with 4 male goats and 5 female goats and each of them was raised in a single column. The weaning goats in the 3 groups were fed experimental diets, and the experimental diets were formulated by replacing 0 (A group, as control group), 50% (B group) and 100% (C group) normal corn with high amylose corn, respectively. Preliminary period lasted for 7 d, and test period lasted for 28 d. The results showed that, compared with control group, the average daily gain in B and C groups was significantly increased (P<0.05), as well as the apparent digestibility of dry matter, crude protein, neutral detergent fiber (NDF) and acid detergent fiber (ADF) was significantly improved (P<0.05). The contents of serum vascular endothelial growth factor (VEGF) and lactic acid (LAC) in B group were higher than those of control group, but the differences were not significant (P>0.05); however, the contents of serum VEGF and LAC in C group were significantly higher than those of control group (P<0.05). In conclusion, the replacement of 50% or 100% normal corn with high amylose corn in weaning goats' diets have a positive effect on growth and nutrient digestibility.

Cite this article

CHEN Kai , LIU Yong , RAN Tao , HE Jianhua , HE Zhixiong , TAN Zhiliang . Effects of Normal Corn Replacement by High Amylose Corn on Growth Performance, Nutrient Apparent Digestibility and Blood Biochemical and Physiological Indexes of Weaning Goats[J]. Chinese Journal of Animal Nutrition, 2021 , 33(2) : 965 -973 . DOI: 10.3969/j.issn.1006-267x.2021.02.037

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