China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (10): 4336-4342.doi: 10.16431/j.cnki.1671-7236.2024.10.014

• Nutrition and Feed • Previous Articles    

Effects of Vitamin D3 on Growth Performance,Apparent Digestibility of Nutrients and Serum Biochemical Indexes of 10-12 Months Old Sika Deer (Cervus nippon)

ZHANG Ting, HUANG Yao, YUAN Weitao, GUO Xiaolan, WANG Kaiying, XU Chao   

  1. Institute of Special Animal and Plant Science, Chinese Academy of Agricultural Sciences, Changchun 130112, China
  • Revised:2024-03-22 Published:2024-09-30

Abstract: 【Objective】 To investigate the effects of vitamin D3(VD3) supplementation on growth performance,apparent digestibility of nutrients and serum biochemical indexes of 10-12 months old sika deer (Cervus nippon).【Method】 Twenty-four healthy male sika deers aged 10 months with an average body weight of 45.32 kg±5.23 kg were randomly divided into 4 groups with 6 deers in each group and 1 deer per replicate,which were fed basal diet supplemented with 0 (control group),2 000,4 000 and 8 000 IU/kg VD3,respectively. The experiment lasted for 90 days. At the ending of the experiment,the body weight and feed intake of sika deer were counted to determine the growth performance.Blood samples were collected to determine the serum levels of glutathione peroxidase,total superoxide dismutase(T-SOD) and alkaline phosphatase, and the levels of malondialdehyde,immunoglobulin A,immunog-lobulin G,immunoglobulin M,parathyroid,calcitonin,1,25 hydroxyvitamin D3,calcium and phosphorus. Since the 75th day,fecal samples were collected for 3 days,and the contents of dry matter,crude protein,crude fat,acid detergent fiber,neutral detergent fiber,calcium and phosphorus were determined.【Result】 ①Compared with control group,diet supplemented with 4 000 IU/kg VD3 significantly increased the average daily gain of sika deer (P<0.05),but there was no significant difference among other groups (P>0.05). ②The apparent digestibility of Ca in 4 000 IU/kg group was significantly higher than that in control group (P<0.05),but there was no significant difference among other groups (P>0.05).③The serum T-SOD levels of sika deer in 2 000,4 000 and 8 000 IU/kg groups were significantly higher than that in control group (P<0.05),but there was no significant difference among 2 000,4 000 and 8 000 IU/kg groups (P>0.05). Diet supplemented with 8 000 IU/kg VD3 significantly increased serum 1,25 hydroxyvitamin D3 level (P<0.05),but there was no significant difference among other groups (P>0.05).【Conclusion】 Dietary VD3 supplementation was beneficial to improve growth performance,antioxidant capacity and serum 1,25 hydroxyvitamin D3 content of sika deer. According to the indexes determined in this experiment,4 000 IU/kg VD3 had a good application effect on 10-12 months old sika deer.

Key words: vitamin D3; sika deer; growth performance; serum biochemical indexes

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