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Effects of Different Types of Manufacturing Corn Meal on Nutrient Digestion and Metabolism, Plasma Biochemical Indices and Body Weight Gain of 12-Month-Old Yili Horses

  • ZHAO Fang ,
  • YANG Jingtao ,
  • DENG Haifeng ,
  • LI Xiaobin ,
  • YANG Kailun
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  • Xingjiang Agriculture University, Xinjiang Key Laboratory of Meat & Milk Production Herbivore Nutrition, Urumqi 830052, China

Received date: 2015-12-18

  Online published: 2016-06-27

Abstract

This experiment aimed to study the effects of different types of manufacturing corn meal on nutrient digestion and metabolism, plasma biochemical indices and body weight gain of 12-month-old Yili horses, and provided a reference for steam-flaked corn meal and extruded corn meal in horses' feeding practice. Twenty-four healthy Yili male horses with the age of 12 months old and the average body weight of (261.95±14.73) kg were randomly divided into 3 groups, and each group had 8 horses. One group was control group, the others were trial groups Ⅰ and Ⅱ. Each horse was fed 1.5 kg concentrated feed and 8 kg alfalfa hay per day. Besides, each horse of control group, trial groups Ⅰ and Ⅱ was fed with 1.5 kg grinding corn meal, steam-flaked corn meal and extruded corn meal, respectively. The digestion and metabolism experiment lasted for 26 d comprised a 19 d adaptation and 7 d trial period. The results showed that the apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) of trial group Ⅱ was higher than that of control group, and were increased by 4.93% (P>0.05), 5.84% (P>0.05), 7.10% (P>0.05), 14.78% (P<0.05) and 17.45%(P<0.05), respectively, but the digestibility of DM, OM, CP and NDF of trial group Ⅰ was not significantly different compared with control group (P>0.05). Nitrogen retention, nitrogen retention rate of trial group Ⅱ were significantly higher than those of control group and trial group Ⅰ (P<0.05), and were increased by 81.19% and 79.86%, 104.78% and 97.50%, respectively, but there were no significant differences between control group and trial group Ⅰ (P>0.05). The calcium (Ca) retention, phosphorus (P) retention, Ca retention rate and P retention rate of trial group Ⅱ were higher than those of control group and trial group Ⅰ (P>0.05). The content of plasma glucose of trial group Ⅱ was increased by 10.04% and 20.79% (P<0.05), respectively, compared with control group and trial group Ⅰ. Feeding steam-flaked corn meal and extruded corn meal had no significant effects on body weight gain and average daily gain (ADG) of 12-month-old Yili horses, but body weight gain and ADG of trial group Ⅱ were increased by 18.88% and 20.37%, 20.43% and 20.37%, respectively, compared with control group and trial group Ⅰ. Therefore, feeding extruded corn meal can improve the apparent digestibility of dietary nutrients, increase the energy metabolism and promote horse grow, but feeding steam-flaked corn has no significant effects on nutrient digestion and metabolism, plasma biochemical indices and body weight gain of 12 month-old Yili horse.

Cite this article

ZHAO Fang , YANG Jingtao , DENG Haifeng , LI Xiaobin , YANG Kailun . Effects of Different Types of Manufacturing Corn Meal on Nutrient Digestion and Metabolism, Plasma Biochemical Indices and Body Weight Gain of 12-Month-Old Yili Horses[J]. Chinese Journal of Animal Nutrition, 2016 , 28(6) : 1832 -1840 . DOI: 10.3969/j.issn.1006-267x.2016.06.026

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