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Efficacv of the fermented soybean meal with high phytase activity on phosphorus availability in monogastric animals.

具有高植酸酶活性的发酵豆粕对单胃动物磷利用率的功效。

基本信息

批准号：
07556061
负责人：
MATSUI Tohru
金额：
$ 4.48万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07556061/
关键词：
Phytase Phosphorus Zinc Calcium Phytate Pig 利利用性ニワトリマグネシウム

项目摘要

In the first experiment, growing pigs were fed a soybeam meal-based diet (SBM), a fermented soybean meal-based diet (FSBM) or a SBM-based diet supplied inorganic phosphate (SBM+P) and mineral availability was investigated. The apparent absorption rate was higher in the FSBM group than in the other group. The apparent phosphorus absorption did not differ between the SMB group and the SBM+P group. The fermentation did not affect copper availability. However, the FSBM group showed higher concentrations of femoral zinc and liver iron than did the other groups. These results indicated that the fermentation degraded phytate in soybean meal, which resulted in the improvement of these mineral availabilities. In the second experiment, growing pigs were fed a SBM-based diet, a FSBM-diet or Skim milk (SM)-based diet to study the absorption of calcium and ionized calcium concentration in the digesta of small intestine. Calcium absorption was lower in the SBM and the FSBM groups than in the SM group. The concentration of ionized calcium in duodenal and ileal digesta was also lower in the SBM and the FSBM groups than in the SM group. These results suggested that soy-based diets suppressed calcium absorption through reducing ionized calcium in the small intestine. Additionally, phytate in SBM did not affect calcium absorption and the concentration of ionized calcium in the digesta of the small intestine.

在第一个实验中，生长猪饲喂豆粕日粮（SBM）、发酵豆粕日粮（FSBM）或添加无机磷酸盐的豆粕日粮（SBM+P），并研究了矿物质的有效性。 FSBM 组的表观吸收率高于另一组。 SMB组和SBM+P组之间的表观磷吸收没有差异。发酵不影响铜的利用率。然而，FSBM 组的股骨锌和肝铁浓度高于其他组。这些结果表明发酵降解了豆粕中的植酸盐，从而提高了这些矿物质的利用率。在第二个实验中，生长猪饲喂基于SBM的日粮、FSBM日粮或基于脱脂奶（SM）的日粮，以研究小肠食糜中钙的吸收和离子钙浓度。 SBM 和 FSBM 组的钙吸收低于 SM 组。 SBM 和 FSBM 组十二指肠和回肠食糜中的离子钙浓度也低于 SM 组。这些结果表明，以大豆为基础的饮食通过减少小肠中的离子钙来抑制钙吸收。此外，SBM中的植酸不影响钙吸收和小肠食糜中离子钙的浓度。