摘要
本研究旨在探讨不同剂型中链甘油三酯（medium—chaintriglycerides，MCT）对断奶仔猪生长性能、养分消化率、肠道吸收能力及血液指标的影响。试验选用90头22日龄的断奶仔猪（杜×长×大），随机分成3组，每组3个重复，每个重复10头仔猪。对照组饲喂含2．9％豆油的基础饲粮，试验组分别以1．4％液体MCT、1．4％固体MCT替代同一水平的豆油，试验期28d。结果表明：与对照组相比，试验1～14d，固体MCT使断奶仔猪平均日增重显著提高了13．15％（P〈0．05），显著提高了试验第14天断奶仔猪血液中D一木糖的含量（P〈0．05）；2种剂型MCT均显著提高了试验第14天断奶仔猪血液中总蛋白的含量（P〈0．05）；固体MCT显著降低了试验第14天断奶仔猪血液中尿素氮的含量（P〈0．05）。试验15—28d及试验全期（1～28d）的各项指标，3组间均无显著差异（P〉0．05）。结果提示，MCT替代部分豆油可促进断奶后2周内仔猪肠道吸收能力的恢复，改善蛋白质代谢，进而对断奶仔猪生长性能有一定促进作用。
The objective of this experiment was to investigate the effects of different formulations of medium- chain triglycerides （MCT） on growth performance, nutrient digestibility, capacity of intestinal absorption and blood parameters of weaner piglets. Ninety piglets （Duroc x Landrace x Yorkshire） weaned at 22 days of age were selected for the study. They were randomly divided into 3 groups, and the dietary treatments of these three groups were as follows ： a based diet contained 2.9 % soybean oil （ CT group）, the basal diet contained l. 4 % MCT oil （ MO group）, and the basal diet contained 1.4 % MCT powder （ MP group）, respectively. The experiment lasted for 28 days. The results showed as follows ： compared with CT group, the average daily gain of MP group was significantly higher than that of CT group by 13.15% from 1 to 14 days （P 〈0.05） ; MCT powder significantly enhanced the content of D-xylose in plasma on day 14 （ P 〈 0.05 ） ; the different formulations of MCT significantly increased the content of total protein （ P 〈 0.05） and MCT powder signifi- cantly decreased the content of urea nitrogen in plasma on day 14 （P 〈 0.05 ）. There were no significant differences in above parameters among these three groups from 15 to 28 days and during the whole experimen- tal period （P 〉 0.05 ）. In conclusion, replacing part of soybean oil with MCT can improve intestinal absorp- tion capacity and protein metabolism, and enhance the growth performance of weaner piglets during the first 2 weeks post-weaning.
出处
《动物营养学报》
CAS
CSCD
北大核心
2014年第4期1077-1084,共8页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
国家自然科学基金(31272454)
关键词
中链甘油三酯
断奶仔猪
生长性能
消化功能
血液指标
medium-chain triglycerides
weaner piglet
growth performance
digestive function
blood pa-rameters
