摘要
选择28日龄断奶仔猪54头 ,随机分为9组 ,分别饲喂3种不同日粮处理 ,每种日粮处理组为3个重复。3种日粮分别为添加0.05 %异麦芽低聚糖组(IMO组)、添加110mg/kg阿散酸组(抗生素组)和对照组。各组基础日粮相同。分别于35和42日龄从各重复中选1头屠宰 ,测定盲肠、结肠内容物中挥发性脂肪酸(VFA)浓度、pH值及盲肠、结肠粘膜上皮绒毛高度和隐窝深度。结果表明 ,35日龄时 ,IMO组盲肠乙酸、丙酸 ,结肠乙酸、丙酸及总VFA浓度均显著高于对照组(P<0.05) ;42日龄时 ,IMO组盲肠乙酸、丁酸及总VFA浓度 ,结肠乙酸浓度均显著或极显著(P<0.01)高于对照组 ;结肠绒毛高度受处理影响显著 ,在两次测定中 ,IMO组结肠绒毛高度均显著大于(P<0.05)对照组。35日龄时 ,抗生素组结肠绒毛高度也显著高于对照组(P<0.05)。
Fifty four piglets weaned at 28 days were divided into three groups,the antibiotic,the control and the 0.05% Isomaltooligosaccharides (IMO) groups respectively,the basic diet of the three groups was the same.The experiment experienced 21 days.One piglet of each replicate was slaughtered on 35 and 42-day-old respectively to measure caecal and colonic VFA,pH and morphology.The result showed that acetic acid,propionic acid and total VFA concentrations in caecal and colonic digesta of the IMO group were higher(P<0.05) comparing with the control group.IMO group had lower caecum and colon pH than the other two,but the difference was not significant.The colonic villus length of the IMO group and antibiotic group was significant longer than the control group on 42-day-old,crypt depth was not affected by treatments.
出处
《动物营养学报》
CAS
CSCD
2002年第1期19-24,共6页
CHINESE JOURNAL OF ANIMAL NUTRITION
