【作者】 张春梅； 王成章； 高永革； 李振田； 刘祥； 史莹华； 何云； 刘圈炜；

【Author】 Zhang Chun-mei~1 Wang Cheng-zhang~1 Gao Yong-ge~2 Li Zhen-tian~1 Liu Xiang~2 Shi ying-hua~1 He Yun~1 Liu Quan-wei~1 (1.Henan Agricultural University,college of animal husbandry and veterinary,Zhengzhou 450002,China; 2.Forage Grass and Feedstuff Station of Animal Husbandry Bureau of Henan Province,Zhengzhou,Henan 450011,China)

【机构】 河南农业大学牧医工程学院； 河南省饲草饲料站；

【摘要】 通过在日粮中添加不同水平的紫花苜蓿草粉和鲜草,研究苜蓿草粉及其鲜草对禾花鲤生长性能、鱼肉品质、消化酶活性及经济效益的影响。选取整齐一致的二龄禾花鲤1440尾,随机分为6个处理,每处理3个重复,每重复80尾,分置于18个试验池中饲养。各处理饲粮中苜蓿草粉的添加量分别为0(对照组)、4%(试验Ⅰ组)、8%(试验Ⅱ组)、12%(试验Ⅲ组)、160(试验Ⅳ组)和0+鲜草(试验Ⅴ组),正试期50d。研究结果显示:(1)添加苜蓿草粉后,试验Ⅱ组的尾均日增重和增重率显著高于对照组(P<0.05)。试验Ⅰ、Ⅲ组的上述两项指标高于对照组,试验Ⅳ组低于对照组,苜蓿鲜草组低于对照组,但差异均不显著(P>0.05)。(2)和对照组相比,添加苜蓿草粉显著(试验Ⅳ组,P<0.05)或极显著(试验Ⅰ、Ⅱ、Ⅲ组,P<0.01)提高了禾花鲤肌肉中粗蛋白质含量,随着苜蓿草粉添加水平的增加,肌肉中粗脂肪和胆固醇水平线性下降(P<0.05),肌肉中水分含量呈先降后升的二次变化趋势,苜蓿鲜草组的肌肉中粗蛋白质、粗脂肪含量和胆固醇水平无显著变化。(3)添加苜蓿草粉后对消化道各部位蛋白酶活性及淀粉酶活性有促进作用,均呈先升后降的变化趋势,其中试验Ⅱ组的酶活最高。添加苜蓿鲜草对消化道各部位酶活无显著影响。(4)与对照组相比,试验Ⅰ、Ⅱ、Ⅲ组经济效益均有所提高,但以试验Ⅱ组最好。以上结果表明,在鲤鱼饲粮中添加8%紫花苜蓿草粉对鲤鱼生产性能、鱼肉品质及消化酶活性指标有较显著的改善,但紫花苜蓿鲜草不适宜直接投喂鲤鱼。结合生产实际,建议在鲤鱼饲粮中添加8%紫花苜蓿草粉。更多还原

【Abstract】 An experiment was conducted using 1440 C.Ccarpio to study the effect of M.Sativa meal and fresh M.Sativa on the growing performance,meat quality and the digestive enzymes.C.Ccarpio were randomly divided into six treatments according to a random design,three replicates each treatment and 80 C.Ccarpio each replicate.C.Ccarpio were fed with diets containing 0,4%,8%, 12% and 16% M.Sativa meal and fresh M.Sativa respectively during 50 days.The results showed that:(1)Comparing with the control group,average daily gain of C.Ccarpio fed with 8% M.Sativa meal increased extremely significantly (P<0.01),the weight gain rate,relative growth rate of C.Ccarpio increased significantly (P<0.05).The above index of fish fed 4% and 12% M.Sativa meal was higher and those of fish fed 16% M.Sativa meal and fresh M.Sativa lower than that of the control group.(2)With the increasing level of M.Sativa meal in the diets,crude protein content in the muscle of the fish fed M.Sativa meal increased significantly,while EE and cholesterol were significantly decreased (P<0.05),moisture shown the quadric curve variation.Fish fed fresh M.Sativa had no improvement in comparison to the control group.(3)Protease and amylase in foregut,midgut,hindgut and hepatopancrac of C.Ccarpio increased with the M.Sativa meal increasing but the variation was not linearly,the activity of fish fed 8% M.Sativa meal was the best among all the groups.(4)Compared with the control group,economic benefit was also improved, and group 2 was the best. In conclusion,M.Sativa meal could improve the growing performance,fish meat quality,digestive enzymes activity of C.Ccarpio,and the level of 8% was the best,and feeding fresh M.Sativa directly was not suitable for the C.Ccarpio.Combined all indexes,it was recommended that addition of M.Sativa meal at 8% was optimum in C.Ccarpio diet.更多还原