›› 2016, Vol. 43 ›› Issue (3): 656-661.doi: 10.16431/j.cnki.1671-7236.2016.03.014

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Effects of Dietary Supplemental Different Levels of Sugar Beet Pulp on the Digestion and Metabolism of Nutrients of Yanqi Horse

ZANG Chang-jiang1,2, XU Xiang-jun1,2,3, LI Hai-ying1,2, LIN Meng-yang1,2, ZHAO Guo-dong1,2, ZHOU Gui-zhen1,2, DONG Ya-fei1,2, WANG Chuan-kun1,2   

  1. 1. College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Xinjiang Key Laboratory of Meat-and-milk-production Herbivore Nutrition, Urumqi 830052, China;
    3. Technology Center of Feed Division, Xinjiang Tycoon Group Co., Ltd., Changji 831100, China
  • Received:2015-05-06 Online:2016-03-20 Published:2016-03-30

Abstract: This experiment was conducted to study the effects of supplemental different levels of sugar beet pulp on the nutrients of digestion and metabolism in Yanqi horse.12 Yanqi horses were randomly divided into three groups according to performance,body weight,body measurement and age.The groups were referred to as the control group,group Ⅰ and group Ⅱ,each group with 4 Yanqi horses.Yanqi horses in the control group,group Ⅰ and group Ⅱ were supplied with 0,0.6,1.2 kg/d of sugar beet pulp on the condition of feeding the same basal diet and roughage (oat straw).The total duration of the experiment was 20 days,the first 15 days of the experiment was the preliminary period,and the formal experiment lasted for 5 days.The results showed that compared with the control group,the apparent digestibility of OM,NDF,ADF and digestibility amount of NDF,ADF in group Ⅱ was extremely significantly improved (P<0.01),the digestibility amount of crude protein,calcium and the apparent digestibility of OM in group Ⅱ was significant difference (P<0.05);The digestibility amount of NDF,ADF of group Ⅰ was increased by 8.19% (P<0.05) and 9.43% (P<0.05),respectively,and the apparent digestibility (amount) of OM,crude protein,calcium were no significant difference (P>0.05).Compared with group Ⅰ,the apparent digestibility (amount) of OM,NDF,ADF of group Ⅱ were significantly or extremely significant difference (P<0.05;P<0.01),but the apparent digestibility (amount) of crude protein,calcium were no significant difference (P>0.05).Compared with the control group and group Ⅰ,the digestible engergy of group Ⅱ was increased by 14.92% (P<0.01) and 11.23% (P<0.01),but no significant difference was observed between group Ⅰ and control group (P>0.05);The metabolic engergy of group Ⅱ was increased by 11.73% (P<0.05) and 14.83% (P<0.05),respectively.Therefore,the digestion amount of OM,CP of Yanqi horse and the digestion amount and the apparent digestibility of NDF,ADF could be significantly or extremely significantly improved by the supplementation of 1.2 kg/d of sugar beet pulp,and the ability to use the nutrients were obviously improved for Yanqi horse.

Key words: Yanqi horse; sugar beet pulp; digestion; metabolism

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