Son Ah Reum, Park Chan Sol, Park Kyu Ree, Kim Beob Gyun
Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea.
Monogastric Animal Feed Research Institute, Konkuk University, Seoul 05029, Korea.
Asian-Australas J Anim Sci. 2019 Nov 1;32(11):1745-1752. doi: 10.5713/ajas.19.0037. Epub 2019 Mar 7.
The objective was to determine standardized ileal digestibility (SID) of amino acids (AA) in 11 plant protein sources fed to growing pigs.
Eleven feed ingredients used were sesame meal, two sources of soybean meal (SBM) produced in the Republic of Korea, a source of SBM produced in India, high-protein distillers dried grains (HPDDG), perilla meal, canola meal, copra meal, corn germ meal, palm kernel expeller, and tapioca distillers dried grains (TDDG). Experimental diets were prepared to contain each test ingredient as a sole source of AA, and a nitrogen-free diet was also prepared to estimate the basal ileal endogenous losses of AA. Twelve barrows surgically fitted with T-cannulas the distal ileum with an initial body weight of 29.0 kg (standard deviation = 3.0) were individually housed in metabolism crates equipped with a feeder and a nipple drinker. A 12 × 9 incomplete Latin square design was employed with 12 experimental diets, 12 animals, and 9 periods. After a 5-d adaptation period, ileal digesta were collected on d 6 and 7 in each experimental period.
Values for apparent ileal digestibility of most indispensable AA in three sources of SBM were greater compared with other test ingredients except HPDDG and canola meal (p<0.05). Pigs fed diets containing SBM sources had also greater SID of most indispensable AA compared with those fed diets containing other test ingredients (p<0.05) except for HPDDG and canola meal. There was no difference in the apparent ileal digestibility and SID of AA among sources of SBM. The TDDG had the least value for the SID of methionine among test ingredients (p<0.05).
Standardized ileal digestibility of most amino acids in soybean meal, high-protein distillers dried grains, and canola meal were greater than those in sesame meal, perilla meal, copra meal, and tapioca distillers dried grains.
本研究旨在测定11种植物蛋白源中氨基酸（AA）的标准化回肠消化率（SID），这些蛋白源用于饲喂生长猪。
所使用的11种饲料原料为芝麻粕、两种韩国产豆粕（SBM）、一种印度产SBM、高蛋白干酒糟（HPDDG）、紫苏粕、油菜籽粕、椰肉粕、玉米胚芽粕、棕榈仁粕和木薯干酒糟（TDDG）。配制实验日粮，使每种测试原料作为AA的唯一来源，同时还配制了无氮日粮以估计AA的基础回肠内源损失。12头体重29.0 kg（标准差=3.0）、手术安装有回肠末端T型套管的公猪，单独饲养在配备有喂食器和乳头饮水器的代谢笼中。采用12×9不完全拉丁方设计，有12种实验日粮、12只动物和9个试验期。经过5天的适应期后，在每个实验期的第6天和第7天收集回肠食糜。
与除HPDDG和油菜籽粕外的其他测试原料相比，三种SBM来源中大多数必需AA的表观回肠消化率值更高（p<0.05）。与饲喂含其他测试原料日粮的猪相比，饲喂含SBM来源日粮的猪大多数必需AA的SID也更高（p<0.05），但HPDDG和油菜籽粕除外。不同SBM来源之间AA的表观回肠消化率和SID没有差异。在测试原料中，TDDG的蛋氨酸SID值最低（p<0.05）。
豆粕、高蛋白干酒糟和油菜籽粕中大多数氨基酸的标准化回肠消化率高于芝麻粕、紫苏粕、椰肉粕和木薯干酒糟。
