摘要
试验旨在研究发酵黄芪—甘草水提物对817肉鸡生长性能、免疫器官指数和肉品质的影响。选用1日龄健康817肉鸡90只,利用单因子完全随机试验设计,将90只肉鸡随机分为空白对照组、试验Ⅰ组和试验Ⅱ组,每组3个重复,每个重复10只鸡。对照组饲喂基础日粮+清水、试验Ⅰ组饲喂基础日粮+未发酵黄芪—甘草水提物(饮水给药)、试验Ⅱ组饲喂基础日粮+发酵黄芪—甘草水提物(饮水给药),未发酵中药、发酵中药均用水稀释2 000倍。在试验第21和42天,分别测定肉鸡的平均日增重、料肉比、免疫器官指数及肌肉(胸肌、腿肌)营养成分含量、肉色、滴水损失等肉品质指标。结果显示:1~42日龄时,与对照组相比,Ⅰ、Ⅱ组平均日增重分别提高5.09%(P<0.05)和12.72%(P<0.05),料肉比分别降低10.84%(P<0.05)和22.09%(P<0.05)。21日龄时,与对照组相比,Ⅰ、Ⅱ组脾脏指数分别提高4.40%(P>0.05)和13.19%(P>0.05),法氏囊指数分别提高32.39%(P<0.05)和37.09%(P<0.05);42日龄时,与对照组相比,Ⅰ、Ⅱ组脾脏指数分别提高31.97%(P<0.05)和50.82%(P<0.05),法氏囊指数分别提高16.25%(P>0.05)和38.13%(P<0.05)。21、42日龄,Ⅰ、Ⅱ组肝脏指数均高于对照组。42日龄时,与对照组相比,Ⅰ、Ⅱ组胸肌肌肉水分含量(P<0.05)、粗脂肪含量(P<0.05)、肉色a*值和肌苷酸含量均提高,肉色b*值和滴水损失均降低;Ⅰ、Ⅱ组腿肌肌肉水分含量、粗蛋白质含量、肉色a*值和肌苷酸含量(P<0.05)均高于对照组,肉色b*值和滴水损失(P<0.05)均降低;对照组、Ⅰ组和Ⅱ组胸肌和腿肌肉色L*值均差异不显著(P>0.05)。综上所述,发酵黄芪—甘草水提物可在一定程度上提高817肉鸡的生长性能和免疫功能,改善肉品质,且作用效果优于未发酵中药。
The purpose of this experiment was to study the effects of aqueous extract of fermented Astragalia and Glycyrrhiza on growth performance,immune organ indexes and meat quality of 817 broilers.90 one-day-old healthy 817 broilers were chosen and randomly divided into three groups by one-factor completely random design with 3 repetitions each group and 10 broilers per repetition.The broilers in control group were fed basal diet+fresh water,that in groupsⅠandⅡwere fed basal diet+unfermented or fermented Astragalia and Glycyrrhiza with a dilution ratio of 1∶2 000,respectively.On the 21 and 42 d,the average daily gain,F/G,the immune organ indexes and the meat quality such as muscle nutrient content,the meat color and drip loss were all measured.The results showed that during 1 to 42 days,compared with control group,the average daily gain of groupsⅠandⅡincreased by 5.09%(P<0.05)and 12.72%(P<0.05)and F/G was reduced by 10.84%(P<0.05)and 22.09%(P<0.05),respectively.At the age of 21 days,compared with control group,the spleen and bursa of Fabricius indexes of groupsⅠandⅡwere raised by 4.40%(P>0.05),13.19%(P>0.05)and 32.39%(P<0.05),37.09%(P<0.05),respectively.At the age of 42 days,the spleen and bursa of Fabricius indexes were raised by 31.97%(P<0.05),50.82%(P<0.05)and 16.25%(P>0.05),38.13%(P<0.05),respectively.The liver index of groupsⅠandⅡat 21 and 42 days were higher than control group.At the age of 42 days,compared with control group,the moisture content(P<0.05),crude fat content(P<0.05),a*value and inosinic acid content of breast muscle in groupsⅠandⅡwere all raised,b*value and drip loss were declined.The moisture content,crude protein content,a*value and inosinic acid content(P<0.05)of thigh muscle in groupsⅠandⅡwere higher,both b*value and drip loss(P<0.05)were declined.The differences in the breast and thigh muscle of L*values among the groups was not significant(P>0.05).In conclusion,aqueous extract of fermented Astragalia and Glycyrrhiza could improve the growth performance,immune indexes and meat quality of 817 broilers,and the effect was better than the unfermented group.
作者
张晓静
史洪涛
牛湘楠
宋予震
汤法银
边传周
乔宏兴
ZHANG Xiaojing;SHI Hongtao;NIU Xiangnan;SONG Yuzhen;TANG Fayin;BIAN Chuanzhou;QIAO Hongxing(Henan University of Animal Husbandry and Economy,Zhengzhou 450046,China;Engineering Laboratory of Microbial Bioconversion Traditional Chinese Medicine of Henan Province,Zhengzhou 450046,China;Key Laboratory of Probiotics Fermentation Traditional Chinese Medicine of Zhengzhou City,Zhengzhou 450046,China)
出处
《中国畜牧兽医》
CAS
北大核心
2018年第4期933-939,共7页
China Animal Husbandry & Veterinary Medicine
基金
河南省自然科学基金(162300410128)
河南牧业经济学院预防兽医重点学科(MXK2016102)
河南省科技开放合作项目(172106000009
182106000042)
关键词
发酵黄芪-甘草水提物
肉鸡
生长性能
免疫器官指数
肉品质
aqueous extract of fermented Astragalia and Glycyrrhiza
broiler
growth performance
immune organ index
meat quality
