This experiment was conducted to study the effects of rapeseed meal on growth performance, nutrient utilization and serum biochemical indexes of Zhedong white geese aged from 7 to 9 weeks. A total of 160 seven-week-old Zhedong white geese were randomly divided into 4 groups with 4 replicates per group and 10 geese per replicate. Geese in the control group (group Y0) were fed a basal diet, and the others in the experimental groups (group Y1, Y2 and Y3) were fed experimental diets which used 4%, 7% and 10% rapeseed meal replaced soybean meal in the basal diet. The experiment lasted for 21 days. The results showed as follows: 1) compared with the control group, the average daily gain of geese in experimental groups showed a decreased tendency, but there were no significant differences among all groups (P>0.05). The average daily feed intake of geese in groups Y1, Y2 and Y3 was significantly lower than that in control group (P<0.01). There were no significant differences in the ratio of feed to gain among all groups (P>0.05). 2)The utilization of energy, crude protein, crude fiber and phosphorus were the highest in group Y2, and significantly higher than that in control group (P<0.01), also the crude fat utilization was significantly higher than that in control group (P<0.05), however, the calcium utilization had no significant difference compared with the control group (P>0.05). 3) The glycine utilization in group Y2 was significantly higher than that in control group (P<0.01), the utilization of tryptophan, glycine, arginine and leucine was significantly lower than that in control group (P<0.05 or P<0.01), the glycine utilization in group Y3 was significantly higher than that in control group (P<0.01). 4) There were no significant differences in the contents of total protein, glucose, total cholesterol, triiodothyronine, thyroxine of serum among all groups (P>0.05). The serum glycerin trilaurate content in group Y3 was significantly lower than that in control group (P<0.05), the serum glutamic-pyruvic transaminase activity in experimental groups was significantly lower than that in control group (P<0.01), and the serum glutamic-oxaloacetic transaminase activity in groups Y1 and Y2 was significantly higher than that in control group (P<0.05). It is concluded that 7% to 10% rapeseed meal replaced soybean meal in the basal diet can improve mostly nutrient utilization, and can improve the economic benefits of geese industry.
WANG Huiying, JIANG Tao, LIU Yi, GONG Shaoming, WU Huali, HE Daqian, ZHANG Shiyuan, WANG Liangjun
. Effects of Rapeseed Meal on Growth Performance, Nutrient Utilization and Serum Biochemical Indexes of Zhedong White Geese Aged from 7 to 9 Weeks[J]. Chinese Journal of Animal Nutrition, 2015
, 27(2)
: 400
-407
.
DOI: 10.3969/j.issn.1006-267x.2015.02.010
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