富含DHA的未提取微藻作为日粮补充剂对生长育肥猪生产性能、胴体性状和肉脂肪酸组成的影响。

Effects of a DHA-rich unextracted microalgae as a dietary supplement on performance, carcass traits and meat fatty acid profile in growing-finishing pigs.

作者信息

Moran C A, Morlacchini M, Keegan J D, Delles R, Fusconi G

机构信息

Alltech SARL, Vire, France.

Cerzoo Centro di Ricerche per la Zootecnia e l'Ambiente SRL, Piacenza, Italy.

出版信息

J Anim Physiol Anim Nutr (Berl). 2018 Aug;102(4):1026-1038. doi: 10.1111/jpn.12911. Epub 2018 Apr 19.

DOI:10.1111/jpn.12911

PMID:29671902

Abstract

Two 125-day experiments of the same design were conducted to evaluate the effects of a heterotrophically grown microalgae (AURA) containing docosahexaenoic acid (DHA) on pig performance, carcass traits and the fatty acid composition of lean and adipose tissue. In each experiment, 144 Hypor pigs were blocked by sex, allocated to three treatment groups, and fed 0, 0.25% or 0.50% AURA in isonutritive, isocaloric diets. Pigs were weighed on days 0, 28, 56, 84 and 112. Feed and water intakes were measured every 28 days. Pigs were slaughtered on day 125. Data from the two studies were analysed as a single data set. Performance and carcass traits did not differ between treatments. Both microalgae treatment levels enriched (p < .05) Longissimus lumborum (LL) and backfat in DHA and improved (p < .05) their ratios of n-6 to n-3 fatty acids.

摘要

进行了两项设计相同的为期125天的实验，以评估含有二十二碳六烯酸（DHA）的异养生长微藻（AURA）对猪的生产性能、胴体性状以及瘦肉和脂肪组织脂肪酸组成的影响。在每项实验中，144头海波尔猪按性别进行分组，分配到三个处理组，并在营养均衡、热量相等的日粮中分别饲喂0%、0.25%或0.50%的AURA。在第0、28、56、84和112天对猪进行称重。每28天测量一次采食量和饮水量。在第125天对猪进行屠宰。将两项研究的数据作为一个数据集进行分析。各处理组之间的生产性能和胴体性状没有差异。两个微藻处理水平均使腰大肌（LL）和背膘中的DHA含量增加（p<0.05），并改善了（p<0.05）它们的n-6与n-3脂肪酸比例。