Effect Of Different Concentrate Supplements On Performance Of Sika Deer

The effect of different concentrate supplements on the sika deer nutrient digestibility, the serum biochemical indicators and production performance was studied. The optimal concentrate feed formula of sika deer was determined, thus providing reference for the diet preparation of sika deer.Experiment I: A feeding trial was conducted with growing sika doe in Jilin Agricultural University’s deer farm from July 15, 2013 to August 30, 2013. Three concentrate supplements used in Jilin Agricultural University deer farm, Jilin province Shuang yang deer breeding company limited and Changchun City Shuang yang District of Hong qiao Deer industry company limited were tested. Twenty one healthy young sika does of the same age, similar weight were randomly allocated into 3 groups(groups A, B and C) of 7. The three different concentrate supplements were fed to each group of animals, respectively for 7 days. The ratio of concentrate supplement and roughage were 35:65. The results were as follows:1. There were significant differences in dry matter intake among treatments(P<0.05) with group C was the highest.2. Dry matter, organic matter and crude fiber digestibility were not significantly affected by different concentrate supplements(P>0.05), crude protein digestibility for group C was significantly higher than those for groups A and B(P<0.05). Calcium and phosphorus intakes in turn from high to low were groups C, B and A.3. The average daily gain was significantly affected by feeding different concentrate supplements(P<0.05), with group C being the highest(118.50g).Experiment II: Effect of different concentrate supplements on nutrient digestibility, blood physiological and biochemical parameters in antler growing stags was investigated from June 10, 2014-2014 July 17 at Jilin Agricultural University deer farm, Shuangyang Deer Breeding Company, Shuangyang District in Changchun City, Company and Hongqiao Deer industry Company respectively. Forty eight, 45 and 48 stags of 4 to 5 years old were selected in the three farms, respectively. The results are as follows:1. Dry and organic matter intakes of stags during antler growing stage were significantly different(P<0.05) among treatments, with group Ⅱ being the highest.2. Dry matter and crude protein digestibility by antler growing stags differed significantly(P<0.05) when fed different concentrate supplements, with groupⅡbeing higher than that for groupⅠand group I higher than that for groupⅢ.3. Effects of different concentrate supplements feed on serum total protein and urea nitrogen concentrations of antler growing deer were significantly(P<0.05). Dietary protein contents were closely related with serum urea levels.4. Antler yield was not affected by feeding different concentrate supplements(P>0.05), group Ⅱ being slightly higher(low energy high protein group).To conclude, in the range of the experiment, the suitable protein level of concentrate supplement for growing does was 21.43%, for antler growing stags, 20.05%, and total energy was 16.74MJ?kg-1. Optimal performance can be achieved by feeding this concentrate supplement.