饲料研究2025，Vol.48Issue(2)：32-36,5.DOI:10.13557/j.cnki.issn1002-2813.2025.02.007
蒲公英提取物对犊牛生长性能、腹泻率及肠道健康的影响
Effects of dandelion extract on growth performance,diarrhea rate,and intestinal health of calves
摘要
Abstract
The study aimed to investigate the effects of dandelion extract on the growth performance,diarrhea rate,and intestinal health of calves.A total of 40 healthy calves at five days of age were selected and randomly divided into four groups,with 10 replicates per group and one calf per replicate.The control group was fed a basal diet,while the experimental groups were fed the basal diet supplemented with 0.2%,0.4%,and 0.8%dandelion extract,respectively.The trial included a one-week pre-experimental period and an eight-week formal experimental period.The results showed that dandelion extract had no significant effect on the average daily feed intake of calves(P＞0.05).Compared with the control group,the final body weight of calves in the 0.4%dandelion extract group increased by 3.08%(P＜0.05),and the average daily gain increased by 8.45%(P＜0.05).The diarrhea rate of calves in the 0.2%,0.4%,and 0.8%dandelion extract groups was significantly reduced(P＜0.05),and the fecal scores of calves in the 0.4%and 0.8%dandelion extract groups was significantly lower(P＜0.05).Compared with the control group,the number of Lactobacillus and Bacillus in the intestines of calves in the 0.4%and 0.8%dandelion extract groups were significantly increased(P＜0.05),and the number of Bifidobacteria in the intestines of calves in the 0.4%dandelion extract group was significantly increased(P＜0.05).The number of E.coli in the intestines of calves in the 0.2%,0.4%,and 0.8%dandelion extract groups was significantly decreased(P＜0.05).Dandelion extract had no significant effect on the total intestinal bacteria and Prevotella ruminicola numbers in calves(P＞0.05).Compared with the control group,the activity of aspartate aminotransferase,cholesterol,and urea nitrogen in the serum of calves in the 0.4%dandelion extract group were significantly decreased(P＜0.05),while the total protein level was significantly increased(P＜0.05).The globulin level in the serum of calves in the 0.4%and 0.8%dandelion extract groups was significantly increased(P＜0.05).The study indicates that adding 0.4%dandelion extract to the diet of calves can improve growth performance,reduce the diarrhea rate and fecal score,increase the number of beneficial intestinal bacteria,reduce the number of harmful bacteria,and improve overall health.关键词
蒲公英提取物/犊牛/生长性能/腹泻率/肠道健康Key words
dandelion extract/calves/growth performance/diarrhea rate/intestinal health分类
农业科技引用本文复制引用
张召兴,王亚男,韩平,李校栋,周英昊,毛森,郭建军..蒲公英提取物对犊牛生长性能、腹泻率及肠道健康的影响[J].饲料研究,2025,48(2):32-36,5.基金项目
承德市科技计划项目(项目编号:202403A006) （项目编号:202403A006）
承德市绿色食品产业研究院建设项目(项目编号:202205B088) （项目编号:202205B088）
承德国家可持续发展议程创新示范区建设科技专项(项目编号:202104F026C、202202F016) （项目编号:202104F026C、202202F016）
