摘要
本试验旨在研究黑麦草颗粒饲粮对扬州鹅生长性能、屠宰性能和血清生化指标的影响。试验选用1日龄扬州鹅300只,随机分成5组,每组3个重复,每个重复20只。各组饲粮黑麦草添加水平分别为0(对照组)、2%(Ⅰ组)、4%(Ⅱ组)、6%(Ⅲ组)和8%(Ⅳ组)。试验期为21 d。结果表明:1)7日龄时,Ⅱ、Ⅳ组平均日采食量显著低于对照组(P<0.05),Ⅰ组平均日增重显著高于对照组(P<0.05);14日龄时,Ⅱ组平均日采食量显著低于对照组(P<0.05),Ⅱ、Ⅲ组料重比显著低于对照组(P<0.05);21日龄时,Ⅳ组平均日采食量显著高于对照组(P<0.05)。2)Ⅰ、Ⅱ、Ⅲ、Ⅳ组屠体重、半净膛重、全净膛重和腿肌重均高于对照组(P>0.05),各组胃pH无显著差异(P>0.05)。3)各组血清谷草转氨酶和碱性磷酸酶活性差异不显著(P>0.05);Ⅰ、Ⅲ和Ⅳ组血清总蛋白含量显著高于对照组(P<0.05);Ⅰ、Ⅱ组血清葡萄糖含量显著低于对照组(P<0.05);Ⅰ、Ⅱ和Ⅳ组血清谷丙转氨酶活性显著低于对照组(P<0.05)。由此可见,黑麦草颗粒饲粮能够提高扬州鹅生长性能,改善屠宰性能和血清生化指标,黑麦草适宜添加水平为6%。
This experiment was conducted to study the effects of ryegrass pellet diet on growth performance, slaughter performance and serum biochemical indexes of Yangzhou geese.A total of 300 one-day-old Yangzhou geese were randomly divided into 5 groups with 3 replicates per group and 20 geese per replicate.Geese in the groups were fed the diets supplemented with 0 （ control group ） , 2% （ group Ⅰ） , 4% （ group Ⅱ） , 6%（ group Ⅲ） and 8%（ groupⅣ） ryegrass, respectively.The experiment lasted for 21 days.The results showed as follow：1） at 7 days of age, the average daily feed intake （ ADFI） in groups Ⅱ and Ⅳ was significantly lower than that in control group （P〈0.05）, the average daily gain in group Ⅰ was significantly higher than that in control group （ P〈0.05）; at 14 days of age, the ADFI in groupⅡwas significantly lower than that in control group （ P〈0.05） , the ratio of feed to gain in groupsⅡandⅢwas significantly lower than that in control group （ P〈0.05）; at 21 days of age, the ADFI in group Ⅳ was significantly higher than that in control group （ P〈0.05） .2） The carcass weight, semi-eviscerated weight, eviscerated weight and leg muscle weight in groups Ⅰ, Ⅱ, Ⅲ and Ⅳ were higher than those in control group （ P〉0.05 ） , there was no significant difference on stomachic pH among all groups （ P〉0.05） .3） There was no significant difference on the activi-ties of glutamic oxalocetie transaminase and alkaline phosphatase in serum among all groups （ P〉0.05）;the se-rum total protein content in groups Ⅰ, Ⅲ and Ⅳ was significantly higher than that in control group （ P〈0.05）; the serum glucose content in groups Ⅰ and Ⅱ was significantly lower than that in control group （ P〈0.05）; the serum glutamic-pyruvic transaminase activity in groupsⅠ,Ⅱand Ⅳwas significantly lower than that in control group （ P〈0.05）.In conclusion, ryegrass pellet diet can improve the growth performance, slaughter performance and serum biochemical indexes of Yangzhou geese, and the optimal supplemental level of ryegrass is 6%.
出处
《动物营养学报》
CAS
CSCD
北大核心
2014年第5期1333-1339,共7页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
"十二五"国家科技支撑计划课题(2011BAD17B02)
关键词
黑麦草
扬州鹅
生长性能
屠宰性能
血清生化指标
ryegrass
Yangzhou geese
growth performance
slaughter performance
serum biochemical indexes
