乳酸菌和果寡糖对育成早期北极狐生长性能、营养物质消化率及血清生化指标的影响  

Effects of Lactic Acid Bacteria and Fructooligosaccharides on Growth Performance,Nutrient Digestibility and Serum Biochemical Indices of Arctic Foxes(Alopex lagopus)during Early Growth Period

作　　者：张婷[1] 袁伟涛 郭肖兰 王凯英[1] 徐超[1] ZHANG Ting;YUAN Weitao;GUO Xiaolan;WANG Kaiying;XU Chao(Special Animal Microbial Feed Engineering Research Center of Jilin Province,Special Animal Breeding and Comprehensive Utilization Innovation Engineering Center,Institute of Special Animal and Plant Science,Chinese Academy of Agricultural Science,Changchun 130112,China)

机构地区：[1]中国农业科学院特产研究所,特种动物饲养及综合利用创新工程中心,吉林省特种动物微生物饲料工程研究中心,长春130112

出　　处：《动物营养学报》2023年第4期2571-2579,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：吉林省科技厅发展计划项目(20200301019RQ);中国农业科学院创新工程(CAAS-ASTIP-2021-ISAPS)。

摘　　要：本试验旨在研究饲粮添加乳酸菌和果寡糖对育成早期北极狐生长性能、营养物质消化率及血清生化指标的影响。选取60只平均体重为(1.16±0.15)kg的分窝后雄性北极狐[(45±3)日龄],随机分成4组,每组3个重复,每个重复5只,分别饲喂以下饲粮:基础饲粮(对照组)、基础饲粮+3×10^(9) CFU/kg乳酸菌(LAB组)、基础饲粮+5 g/kg果寡糖(FOS组)、基础饲粮+3×10^(9) CFU/kg乳酸菌+5 g/kg果寡糖(LAB+FOS组)。试验期30 d。结果显示:1)在试验第1~15天,LAB组和LAB+FOS组腹泻率较对照组和FOS组显著降低(P<0.05)。在试验第16~30天,LAB+FOS组北极狐平均日增重显著高于对照组和FOS组(P<0.05),但与LAB组差异不显著(P>0.05);LAB+FOS组北极狐腹泻率显著低于对照组和FOS组(P<0.05),但与LAB组差异不显著(P>0.05);与FOS组相比,LAB+FOS组蓝狐料重比显著下降(P<0.05)。2)LAB+FOS组干物质消化率显著高于对照组和FOS组(P<0.05),但与LAB组差异不显著(P>0.05);各组食入氮、粪氮、尿氮、氮沉积、净蛋白质利用率和蛋白质生物学效价差异不显著(P>0.05)。3)LAB+FOS组血清总蛋白(TP)含量显著高于FOS组(P<0.05),但与对照组和LAB组差异不显著(P>0.05);LAB组血清白蛋白(ALB)含量显著高于对照组和FOS组(P<0.05),但与LAB+FOS组差异不显著(P>0.05);与对照组相比,LAB+FOS组血清尿素氮(UN)含量显著降低(P<0.05)。综上所述,饲粮中同时添加3×10^(9) CFU/kg乳酸菌和5 g/kg果寡糖有利于降低育成早期北极狐的腹泻率,提高干物质消化率,改善机体免疫水平,进而促进生长。This experiment was conducted to study the effects of dietary lactic acid bacteria(LAB)and fructooligosaccharides(FOS)on growth performance,nutrient digestibility and serum biochemical indices of Arctic foxes(Alopex lagopus)during early growth period.Sixty male post-litter Arctic foxes with the average body weight of(1.16±0.15)kg and at the age of(45±3)days were randomly assigned to 4 groups with 3 replicates per group and 5 foxes per replicate.The foxes were fed the following diets,respectively:basal diet(control group),basal diet+3×10^(9) CFU/kg LAB(LAB group),basal diet+5 g/kg FOS(FOS group)and basal diet+3×10^(9) CFU/kg LAB+5 g/kg FOS(LAB+FOS group).The experiment lasted for 30 days.The results showed as follows:1)on the days 1 to 15,the diarrhea rate of foxes in the LAB group and LAB+FOS group was significantly lower than that in the control group and FOS group(P<0.05).On the days 16 to 30,the average daily gain of foxes in the LAB+FOS group was significantly higher than that in the control group and FOS group(P<0.05),but had no significant difference with LAB group(P>0.05);the diarrhea rate of foxes in the LAB+FOS group was significantly lower than that in the control group and FOS group(P<0.05),but had no significant difference with LAB group(P>0.05);compared with the FOS group,the feed to gain ratio of foxes in the LAB+FOS group was significantly decreased(P<0.05).2)The dry matter digestibility of foxes in the LAB+FOS group was significantly higher than that in the control group and FOS group(P<0.05),but had no significant difference with LAB group(P>0.05).There were no significant differences in nitrogen intake,fecal nitrogen,urine nitrogen,nitrogen deposition,net protein utilization and protein biological value among all groups(P>0.05).3)Serum total protein(TP)content of foxes in the LAB+FOS group was significantly higher than that in the FOS group(P<0.05),but had no significant difference with control group and LAB group(P>0.05).Serum albumin(ALB)content of foxes in the LAB group was significantly

关 键 词：北极狐 乳酸菌 果寡糖 生长性能 营养物质消化率 

分 类 号：S816[农业科学—饲料科学]