第22期：饲喂中链和长链脂肪酸甘油酯对体重轻的新生仔猪存活率的影响
 
Effect of medium- and long-chain triglyceride supplementation on small newborn-pig survival
 
作者：J. Casellas^a,*, X. Casas^c, J. Piedrafita^a, X. Manteca^b
aDepartament de Cie`ncia Animal i dels Aliments, Universitat Autonoma de Barcelona,
08193 Bellaterra, Barcelona, Spain
bDepartament de Biolog ́ıa Cel lular, de Fisiologia i d’Immunologia, Universitat Auto`noma de Barcelona, 08193 Bellaterra, Barcelona, Spain                                                                            
  cDivasa Farmavic S.A., 08503 Gurb-Vic, Barcelona, Spain

来源：Preventive Veterinary Medicine 67 (2005) 213–221

翻译：肠动力研究院 梁琦
 

启示

该研究表明集中补充低剂量的MCT-LCT给出生体重较轻的那部分仔猪，能够提高出生体重最轻的仔猪从出生到21日龄的存活率。

 


 
Abstract

 

The pre-weaning survival of 508 piglets was studied with a categorical survival analysis, evaluating the effect of medium–long-chain triglyceride (MCT–LCT) supplementation on small newborn pigs, and determining additional risk factors. Half of the 98 piglets born with birth weight (BW) < 1250 g received 1.95 g of MCT–LCT each 24 h during the first 3 days of life, and their death hazard was reduced 1.9-fold in relation with small unsupplemented siblings. The death hazard ratio (HR) of supplemented animals compared to 410 heavier littermates was not different. However, the HR for newborn pigs that were small in relation with their siblings was 2.8, and the HR for litters with >12 piglets born alive was 4.5. There was variation across months, and also piglets from primiparous sows had increased hazard of death (HR = 4.0).

 

Keywords: Pig-feeding and nutrition; Energetic supplement; Medium-chain fatty acids; Pre-weaning mortality; Survival analysis

 
Conclusion
 

Our results suggest that concentrating the supplementation on a relatively small proportion of piglets and with a reduced dose of MCT–LCT we can improve survival to day 21 of the smallest piglets.