饲料工业2026，Vol.47Issue(7)：95-100,6.DOI:10.13302/j.cnki.fi.2026.07.013
膨化玉米秸秆发酵饲料对肉犊牛生长性能、养分表观消化率及血清生化指标的影响
Effects of Extruded Corn Stalk Fermented Feed on Growth Performance,Apparent Nutrient Digestibility,and Serum Biochemical Parameters of Beef Calves
摘要
Abstract
The study aimed to investigate the effects of extruded corn stalk fermented feed on growth performance,apparent digestibility of nutri-ents,and serum biochemical parameters of beef calves,and to screen the appropriate amount of extruded corn stalk fermented feed to replace corn straw.A total of 75 healthy 7-8 month old F1 beef calves(female)of Simmental×local yellow cattle with a body weight of(200.45±5.22)kg were selected for the experiment and randomly divided into 5 groups,with 15 replicates in each group and 1 calf in each replicate.The control group was fed corn straw,while groups Ⅰ,Ⅱ,Ⅲ and Ⅳ were fed extruded corn straw fermented feed to replace 40%,60%,80%,and 100%of corn straw,respectively.The pre experiment lasted for 10 days and the experimental period lasted for 60 days.The results showed that:① compared with the control group,the average daily feed intake of hybrid F1 beef calves in groups Ⅰ,Ⅱ,Ⅲ and Ⅳ increased,but the differences were not sig-nificant(P>0.05).The average daily weight gain in groups Ⅱ and Ⅲ significantly increased(P<0.05),and the feed-to-gain ratio significantly decreased(P<0.05).② Compared with the control group,the apparent digestibility of dry matter,crude fat,calcium,phosphorus,and organic matter nutrients in hybrid F1 beef calves in groups Ⅰ,Ⅱ,Ⅲ and Ⅳ increased,but the differences were not significant(P>0.05).The appar-ent digestibility of crude protein,neutral detergent fiber,and acid detergent fiber nutrients in groups Ⅱ and Ⅲ significantly increased(P<0.05).③ Compared with the control group,the serum albumin(ALB)content in hybrid F1 beef calves in groups Ⅰ,Ⅱ,Ⅲ and Ⅳ increased,but the differences were not significant(P>0.05).The contents of alanine aminotransferase(ALT),total cholesterol(TG),triglycerides(TC),and creati-nine(Cr)decreased(P>0.05).The total protein(TP)and globulin(GLB)contents in the serum of hybrid F1 beef calves in groups Ⅱ and Ⅲ significantly increased(P<0.05),and the contents of aspartate aminotrans-ferase(AST)and blood urea nitrogen(BUN)significantly decreased(P<0.05).In summary,the addition of 60%and 80%extruded corn stalk fermented feed as a substitute for corn stalk can improve the growth per-formance,apparent digestibility of nutrients,and serum biochemical parameters of hybrid F1 beef calves.关键词
犊牛/膨化玉米秸秆发酵饲料/生长性能/养分表观消化率/血清生化指标Key words
beef calves/extruded corn stalk fermented feed/growth performance/apparent nutrient digest-ibility/serum biochemical parameters分类
农业科技引用本文复制引用
张召兴,张洪伟,闫港,黄雷,王利冉,刘计双,杨巍..膨化玉米秸秆发酵饲料对肉犊牛生长性能、养分表观消化率及血清生化指标的影响[J].饲料工业,2026,47(7):95-100,6.基金项目
承德市绿色食品产业研究院建设项目[202205B088] （）
