摘要
本试验旨在研究黄粉虫对冬毛期水貂体重变化、营养物质消化率、氮代谢及毛皮质量的影响。采用单因子试验设计，选取125日龄健康雄性水貂60只，随机分成5组。Ⅰ组饲喂基础饲粮（不含黄粉虫）；Ⅱ组、Ⅲ组、Ⅳ组、Ⅴ组水貂的饲粮中分别添加2％、4％、8％和16％的黄粉虫。预试期7 d，试验期80 d。结果表明：1）2013-11-17时，Ⅳ组和Ⅴ组水貂的体重显著高于Ⅲ组（P＜0．05）；各组平均日增重差异不显著（P＞0．05）。2）Ⅳ组水貂的采食量极显著高于Ⅰ组和Ⅱ组（ P＜0．01）；Ⅱ组和Ⅴ组水貂粗蛋白质消化率极显著高于Ⅳ组（ P＜0．01）；各组粗脂肪消化率和粗灰分消化率差异不显著（ P＞0．05）。3）Ⅲ组、Ⅳ组和Ⅴ组水貂的食入氮显著高于Ⅰ组和Ⅱ组（P＜0．05）；Ⅲ组、Ⅳ组水貂的粪氮极显著高于Ⅰ组和Ⅱ组（P＜0．01）；Ⅴ组水貂的尿氮极显著高于Ⅱ组和Ⅳ组（ P＜0．01），Ⅳ组水貂的氮沉积、净蛋白质利用率和蛋白质生物学价值显著高于Ⅰ组（P＜0．05）。4）Ⅴ组水貂的皮长显著高于Ⅰ组（P＜0．05）；Ⅴ组水貂的鲜皮重显著高于Ⅲ组（ P＜0．05）；Ⅲ组水貂的针毛长显著高于Ⅳ组（ P＜0．05）。由此可见，饲粮中添加黄粉虫能够减少鱼粉、肉骨粉和豆油的添加量，饲粮中添加8％～16％的黄粉虫能够改善毛皮质量。
This experiment was conducted to study the effects of Tenebrio molitor L. on body weight change, nutrient digestibility,nitrogen metabolism and fur quality of minks during winter hair period. The single factor method was taken in the trial,and sixty minks were randomly assigned into 5 groups. Minks in group Ⅰ were fed a basal diet（without Tenebrio molitor L.）,and the others in groupsⅡtoⅤwere fed the experimental di-ets supplemented with 2%,4%,8% and 16% Tenebrio molitor L.,respectively. The pre-test period lasted for 7 days and the trial period lasted for 80 days. The results showed as follow：1）on 17-11-13,the body weight of minks in groups Ⅳ and Ⅴ was significantly higher than that in group Ⅲ（ P〈0.05）. There was no differ-ence on average daily gain among all groups（ P〉0.05）. 2）The feed intake of minks in group Ⅳ was signifi-cantly higher than that in groups Ⅰ and Ⅱ（ P〈0.01）,the crude protein digestibility of minks in groups Ⅱand Ⅴ was significantly higher than that in group Ⅳ（ P〈0.01）. There were no differences in the crude fat di-gestibility and ash digestibility among all groups（ P〉0.05）. 3）The nitrogen intake of minks in groupsⅢ,Ⅳand Ⅴwas significantly higher than that in groupsⅠandⅡ（ P〈0.05）,the fecal nitrogen of minks in groupsⅢ and Ⅳ was significantly higher than that in groups Ⅰ and Ⅱ（ P〈0.01）,the urine nitrogen of minks in group Ⅴwas significantly higher than that in groupⅠ（ P〈0.01）,and the nitrogen retention,net protein utili-zation and biological value of protein of minks in group Ⅳ were significantly higher than those in group Ⅰ（ P〈0.05）. 4）The fur length of minks in group Ⅴ was significantly higher than that in group Ⅰ（ P〈0.05）, the fresh fur weight of minks in group Ⅴ was significantly higher than that in group Ⅲ（ P〈0.05）,and the guard hair length of minks in groupⅢwas significantly higher than that in groupⅣ（ P〈0.05）. In conclusion, dietary supplemented with Tenebrio molitor L. can reduce the use of fish meal,meat and bone meal and bean oil,and dietary supplemented with 8% to 16% Tenebrio molitor L. can enhance the fur quality.
出处
《动物营养学报》
CAS
CSCD
北大核心
2014年第8期2414-2420,共7页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
公益性行业(农业)科研专项(200903014)
关键词
黄粉虫
水貂
体重
消化率
氮代谢
毛皮质量
Tenebrio molitor L.
minks
body weight
digestibility
nitrogen metabolism
fur quality
