摘要
通过研究青绿甜高粱秸秆替代不同比例的基础饲粮对四川白鹅生长性能、屠宰性能及肉品质的影响,探索建立利用青绿甜高粱秸秆替代鹅部分全价基础饲粮的饲喂技术。选取360只28日龄的四川白鹅(公母各半,(1.11±0.008)kg),随机分为对照组、试验I组、试验II组、试验III组、试验IV组、试验Ⅴ组6个处理组,每个组6个重复,每个重复10只鹅。对照组自由采食全价基础饲粮,不补饲青绿甜高粱秸秆;试验Ⅰ~Ⅴ组分别饲喂对照组日采食量96%、92%、88%、84%和80%的基础饲粮,同时自由采食青绿甜高粱秸秆。试验至70日龄结束。结果表明:1)试验I、II组末重和平均日增重与对照组相比无显著差异(P>0.05),对照组、试验I组平均日增重显著高于试验III、IV、Ⅴ组(P<0.05)。2)试验Ⅰ~Ⅴ组屠宰率、胸肌率、腿肌率与对照组相比无显著差异(P>0.05);与对照组相比,试验Ⅰ~Ⅴ组腹脂率均显著降低(P<0.05),试验I、IV和V组皮脂率显著降低(P<0.05),试验Ⅰ~Ⅴ组的肌胃指数均显著升高(P<0.05)。3)与对照组相比,试验Ⅰ~Ⅴ组胸肌粗蛋白质、肌内脂肪和肌苷酸含量均无显著差异(P>0.05),试验I^III组总氨基酸、必需氨基酸、鲜味氨基酸,饱和脂肪酸、不饱和脂肪酸含量均无显著差异(P>0.05)。综合考虑生长性能、屠宰性能和肌肉品质等指标,对于28~70日龄四川白鹅,利用青绿甜高粱秸秆替代部分全价饲粮是可行的,替代比例以4%~8%最好。
This experiment was conducted to study the substitution effect of green sweet sorghum stalks for diet on the growth performance,carcass yields and meat quality in geese,and explore the feeding technology using green sweet sorghum stalks substituting diet.Three hundred and sixty 28-day-old Sichuan White geese（male and female in half）with an initial average bodyweight of（1.11±0.008）kg were randomly allocated into 6treatments（control group,experimental group Ⅰ-Ⅴ）containing 6replicates with 10 birds per pen.The birds in control group was provided the basal diet ad libitum without the green sweet sorghum stalks;the birds in group Ⅳ were fed 96%,92%,88%,84%and 80% of basal diet fed in control group,respectively,and green sweet sorghum stalks were provided ad libitum.The experiment lasted until 70 days of age.The results showed that：1）The final body weight and average daily gain in control group was not significantly different from those in group Ⅰ and Ⅱ（P〉0.05）,the average daily gain in control group and group Ⅰ were higher than those in group Ⅲ,Ⅳand Ⅴ（P〈0.05）.2）No significant difference was observed in dressing percentage,breast muscle percentage and leg muscle percentage among the 6treatment groups（P〉0.05）;compared with control group,abdominal fat percentage in group Ⅰ-Ⅴ and skin subcutaneous fat percentage in group I,IV and Ⅴ were significantly decreased（P〈0.05）,the gizzard index in group Ⅰ-Ⅴ was significantly higher than that in control group（P〈0.05）.3）No significant difference was observed in the content of crude protein,intramuscular fat and inosine monophosphate in breast muscle among the 6treatment groups（P〉0.05）;the content of total amino acids,essential amino acids,delicious amino acids,saturated fatty acids and unsaturated fatty acids in the breast muscle in group Ⅰ-Ⅲ were not different from those in control group（P〉0.05）.Collectively,it seems to be feasible to replace partial diet with green sweet sorghum stalks for geese,and 4%-8% of diet can be replaced with green sweet sorghum stalks without negative effects on growth performance,carcass yields and meat quality in Sichuan White geese from 28 to 70days of age.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
2017年第3期483-491,共9页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
基金
国家水禽产业技术体系专项基金(CARS-43)
国家公益性行业(农业)科研专项(201303143)
重庆市农业发展资金(15402)
关键词
青绿甜高粱秸秆
四川白鹅
生长性能
屠宰性能
肉品质
green sweet sorghum stalks
Sichuan White geese
growth performance
carcass yields
meat quality
