Growth Performance, Plasma Fatty Acids, Villous Height and Crypt Depth of Preweaning Piglets Fed with Medium Chain Triacylglycerol

作者：Loh Teck Chwen1,2,*, Hooi Ling Foo3,4, Nguyen Tien Thanh1 and D. W. Choe1  Department of Animal Science, Faculty of Agriculture, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

来源：Asian Australas. J. Anim. Sci. Vol. 26, No. 5 : 700-704 May 2013

 翻译：肠动力研究院

摘要：本实验是为了评估断奶前仔猪饲喂中链脂肪酸甘油酯（MCT）对生长性能、血浆脂肪酸、绒毛高度和隐窝深度的影响。150头初生仔猪随机分为三组：i) 对照组（无MCT）；ii) MCT+母乳；iii) MCT组（空腹）。测定体重、血浆脂肪酸组成、绒毛高度和隐窝深度。实验期末，对照组和MCT组（空腹）的显著体重低于(p<0.05) MCT+母乳组。饲喂MCT的仔猪血浆中的中链脂肪酸的含量显著高于对照组，不管是哺乳还是空腹。与此相反，对照组比饲喂MCT的组血浆中含有更高的长链脂肪酸和不饱和脂肪酸。饲喂MCT6小时后，仔猪的十二指肠和空肠的绒毛高度更高，不管是哺乳还是空腹；仔猪饲喂MCT6-8天后，发现类似的结果。本实验显示：断奶前仔猪饲喂MCT提高了生长性能、提高血浆中的中链脂肪酸浓度作为能量来源、增加十二指肠、空肠、回肠的绒毛高度。

关键词：中链脂肪酸甘油酯 绒毛  脂肪酸  仔猪

以下是实验中相关图表    

表1. MCT的脂肪酸组成（总脂肪酸中的平均百分比）

表2. 分娩后第1天、第6天、第8天仔猪的体重和增重

表3.  各组仔猪饲喂MCT后在不同时间点的血浆脂肪酸组成

表4.  各组仔猪饲喂MCT后在不同时间点的绒毛高度和隐窝深度

结论 ：饲喂MCT的仔猪生长性能比对照组提高。在哺乳或不哺乳的情况下，MCT能提高增重。当母猪哺乳时，饲喂MCT提高仔猪增重的作用更加明显。血浆更高的中链脂肪酸和总脂肪酸的浓度，可以解释上述正向的实验效果。MCT的MCFA的吸收优于对照组，在MCT+空腹组进一步得到证实。饲喂MCT的仔猪的绒毛高度比对照组更高，从而增加营养物质的吸收表面积，正如血浆中的中链脂肪酸和总脂肪酸的浓度增高。


 

Abstract

A study was conducted to investigate the effects of feeding medium chain triacylglycerol (MCT) on growth performance, plasma fatty acids, villus height and crypt depth in preweaning piglets. A total of 150 new born piglets were randomly assigned into one of three treatments: i) Control (no MCT); ii) MCT with milk (MCT+milk); iii) MCT without milk (MCT+fasting). Body weight, plasma fatty acid profiles, villus height and crypt depth were measured. Final BW for the Control and MCT+fasting was lower (p<0.05) than MCT+milk. The piglets fed with MCT regardless of milk provision or fasting had greater medium chain fatty acids (MCFA) than the Control. In contrast, the Control had greater long chain fatty acid (LCFA) and unsaturated fatty acid (USFA) than the MCT piglets. The piglets fed with MCT regardless of milk provision or fasting had higher villus height for the duodenum and jejunum after 6 h of feeding. Similar observations were found in piglets fed with MCT after 6 and 8 days of treatment. This study showed that feeding MCT to the piglets before weaning improved growth performance, with a greater concentration of MCT in blood plasma as energy source and a greater height of villus in duodenum, jejunum and ileum.

Keywords:Medium Chain Triacylglycerol, Villus, Fatty Acids, Piglets

Conclusion

The piglets treated with MCT had a better growth performance than the control. MCT may help to improve the weight gain of piglets in the situations of milk or non- milk. The benefits of MCT in improving the weight gain are more pronounced when fed in conjunction with milk from the mother. These positive effects could be explained by the greater concentrations of MCFA and overall FA in the plasma of MCT. This indicates the absorption of MCFA in MCT is better than the control. These were further shown in the results of MCT+fasting. The MCT piglets had a greater villus height compared with the control piglets which would increase surface area for absorption of nutrients as seen in the MCFA and overall FA in the plasma. 








 

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