Ileal digestibility of amino acids in conventional, fermented, and enzyme-treated soybean meal and in soy protein isolate, fish meal, and casein fed to weanling pigs
Ileal digestibility of amino acids in conventional, fermented, and enzyme-treated soybean meal and in soy protein isolate, fish meal, and casein fed to weanling pigs
复制标题
DOI：
10.2527/jas.2009-2677
复制
发表时间：
2010-08-01
影响因子：
3.3
通讯作者：
Stein, H. H.
中科院分区：
文献类型：
--
作者：
Cervantes-Pahm, S. K.;Stein, H. H.
进行了一项实验，测定断奶仔猪对 4 种豆制品、鱼粉和酪蛋白的 CP 和 AA 的表观 (AID) 和标准化 (SID) 回肠消化率。这4种大豆产品分别是传统脱壳豆粕（SBM）、大豆分离蛋白（SPI）、发酵豆粕（FSBM）和酶处理豆粕（ESBM）。七头断奶仔猪（初始体重：10.9 +/- 2.3 kg）在回肠远端分别安装了 T 形插管。手推车被分配为 7 x 7 拉丁方设计，有 7 个饮食和 7 个 7 天周期。使用每种蛋白质来源作为 CP 和 AA 的唯一来源制备了六种基于玉米淀粉的饮食。使用无氮饮食来测量 CP 和 AA 的基础内源性损失。结果表明，除Lys外，FSBM中AA的AID和SID与SBM没有差异，并且除少数例外，SBM、FSBM和ESBM中大多数AA的AID和SID彼此之间以及与鱼粉中AA的AID和SID没有差异。同样，ESBM 和 SPI 中 AA 的 AID 和 SID 没有差异，但 SPI 中大多数 AA 的 AID 和 SID 大于 SBM 和 FSBM 中的 (P < 0.05)。 SPI中大多数AA的AID和SID与酪蛋白中AA的AID和SID没有差异。总之，FSBM 和 ESBM 的大多数 AA 的 SID 与 SBM 相似，但 SPI 在 4 种豆制品中具有最大的 AA SID。在所研究的蛋白质来源中，酪蛋白具有最大的 AA SID。
An experiment was conducted to determine the apparent ( AID) and standardized (SID) ileal digestibility of CP and AA in weanling pigs of 4 soybean products, fish meal, and casein. The 4 soybean products were conventional dehulled soybean meal (SBM), soy protein isolate (SPI), fermented soybean meal (FSBM), and enzyme-treated soybean meal (ESBM). Seven weanling barrows (initial BW: 10.9 +/- 2.3 kg) were individually fitted with a T-cannula in the distal ileum. The barrows were allotted to a 7 x 7 Latin square design with 7 diets and seven 7-d periods. Six cornstarch-based diets were prepared using each of the protein sources as the sole source of CP and AA. An N-free diet was used to measure basal endogenous losses of CP and AA. Results showed that except for Lys, the AID and SID of AA in FSBM was not different from SBM, and with a few exceptions, the AID and SID of most AA in SBM, FSBM, and ESBM were not different from each other and from the AID and SID of AA in fish meal. Likewise, the AID and SID of AA in ESBM and SPI were not different, but the AID and SID of most AA in SPI were greater (P < 0.05) than in SBM and FSBM. The AID and SID of most AA in SPI were not different from the AID and SID of AA in casein. In conclusion, FSBM and ESBM had similar SID of most AA as SBM, but SPI has the greatest SID of AA among the 4 soybean products. Casein had the greatest SID of AA among the protein sources studied.