摘要
本试验旨在研究糖化玉米秸秆(SCS)对肉仔鸡生长性能、养分代谢率、器官指数、血清指标及肠道菌群的影响。选择1日龄健康的雌性爱拔益加(AA)肉仔鸡250只,随机分为5个组,每组5个重复,每个重复10只鸡。基础饲粮组饲喂基础饲粮,试验组分别在饲粮中添加4%、8%和12%SCS及8%SCS(高油)替代部分能量饲料。试验期21 d。结果表明:1)8%SCS(高油)组的平均日采食量显著高于8%SCS组(P<0.05),8%SCS组和12%SCS组的末重和平均日增重显著低于基础饲粮组(P<0.05),8%SCS组、12%SCS组和8%SCS(高油)组的料重比显著高于基础饲粮组和4%SCS组(P<0.05)。2)8%SCS(高油)组的饲粮代谢能显著高于其他各组(P<0.05),12%SCS组的能量代谢率显著低于基础饲粮组和4%SCS组(P<0.05),4%SCS组的粗蛋白质代谢率显著高于其他各组(P<0.05),4%SCS组的钙代谢率显著高于基础饲粮组(P<0.05)。3)8%SCS组的肝脏指数显著高于其他各组(P<0.05),12%SCS组的腺胃指数显著低于8%SCS组(P<0.05),4%SCS组的盲肠指数显著低于8%SCS组和12%SCS组(P<0.05)。4)12%SCS组的血清碱性磷酸酶活性显著高于其他各组(P<0.05),8%SCS组的血清尿酸、尿素、总蛋白、白蛋白和总胆红素含量显著高于8%SCS(高油)组(P<0.05),8%SCS(高油)组的血清总超氧化物歧化酶活性显著低于其他各组(P<0.05)。5)4%SCS组、8%SCS组和12%SCS组的回肠中大肠杆菌数量显著低于基础饲粮组和8%SCS(高油)组(P<0.05)。由此可见,饲粮中添加4%SCS对肉仔鸡生长性能、大部分养分代谢率、器官指数、血清生化和抗氧化指标无显著影响,显著降低回肠中大肠杆菌数量。1~21日龄肉仔鸡饲粮中添加4%SCS替代部分能量饲料是可行的。
This study was conducted to investigate the effects of saccharification corn straw(SCS)on growth performance,nutrient metabolic rates,organ indices,serum indices and intestinal microflora of broilers.A total of 250 healthy one-day-old female Arbor Acres(AA)broilers were randomly divided into 5 groups with 5 replicates per group and 10 broilers per replicate.Broilers in the basal diet group were fed a basal diet,and the others in the experimental were fed the diets which supplemented with 4%,8%,12%SCS and 8%SCS(high oil)replaced partial energy feed,respectively.The experiment lasted 21 days.The results showed as follows:1)the average daily feed intake of 8%SCS(high oil)group was significantly higher than that of 8%SCS group(P<0.05),the final weight and average daily gain of 8%SCS group and 12%SCS group were significantly lower than those of basal diet group(P<0.05),and the feed to gain ratio of 8%SCS group,12%SCS group and 8%SCS(high oil)group was significantly higher than that of basal diet group and 4%SCS group(P<0.05).2)The dietary metabolic energy of 8%SCS(high oil)group was significantly higher than that of other groups(P<0.05),the energy metabolic rate of 12%SCS group was significantly lower than that of basal diet group and 4%SCS group(P<0.05),the crude protein metabolic rate of 4%SCS group was significantly higher than that of other groups(P<0.05),and the calcium metabolic rate of 4%SCS group was significantly higher than that of basal diet group(P<0.05).3)The liver index of 8%SCS group was significantly higher than that of other groups(P<0.05),the proventriculus index of 12%SCS group was significantly lower than that of 8%SCS group(P<0.05),and the cecum index of 4%SCS group was significantly lower than that of8%SCS group and 12%SCS group(P<0.05).4)The serum alkaline phosphatase activity of 12%SCS group was significantly higher than that of other groups(P<0.05),the contents of uric acid,urea,total protein,albumin and total bilirubin in serum of 8%SCS group were significantly higher than those of 8%SCS(high oil)group(P<0.05),and the serum total superoxide dismutase activity of 8%SCS(high oil)group was significantly lower than that of other groups(P<0.05).5)The ileum Escherichia coli number of 4%SCS group,8%SCS group and 12%SCS group was significantly lower than that of basal diet group and 8%SCS(high oil)group(P<0.05).In conclusion,dietary 4%SCS has no significant effects on growth performance,most nutrient metabolic rates,organ indices,serum biochemical and antioxidant indices of broilers,significantly decrease the ileum Escherichia coli number.Diets adding 4%SCS replacing partly energy feed for broilers during1 to 21 days of age is feasible.
作者
王平
常娟
刘超齐
尹清强
邵栓
孙贵宾
党晓伟
高天增
WANG Ping;CHANG Juan;LIU Chaoqi;YIN Qingqiang;SHAO Shuan;SUN Guibin;DANG Xiaowei;GAO Tianzeng(College of Animal Science and Veterinary Medicine,Henan Agricultural University,Zhengzhou 450002,China;Henan Delin Biological Products Co.,Ltd.,Xinxiang 453000,China;Henan Guangan Biotechnological Co.,Ltd.,Zhengzhou 450001,China)
出处
《动物营养学报》
CAS
CSCD
北大核心
2019年第8期3843-3852,共10页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
国家自然科学基金项目(31702148)
河南省科技攻关项目(182102110062)
河南省重大科技专项(171100110500)
关键词
糖化玉米秸秆
肉仔鸡
生长性能
养分代谢率
器官指数
血清指标
微生物
saccharification corn straw
broilers
growth performance
nutrient metabolic rates
organ indices
serum indices
microorganism
