ABSTRACT

1. The amino acid composition of 10 different UK-grown field bean cultivar samples from the same harvest year were determined.

2. Diets included each bean sample at a level of 200 g/kg feed compared against a control diet formulated with only soyabean sources, whereby the beans replaced the soyabean meal, and were used to compare ileal amino acid digestibility. The amino acid digestibility coefficients for the bean samples were obtained via substitution method.

3. The data showed that one field bean sample, cultivar Sultan, had a lower amino acid digestibility (P < 0.05) than that of the other nine . This sample had a higher tannin content that may have affected amino acid digestibility.

摘要

1. 测定了来自同一收获年的 10 个不同英国种植的田间豆品种样品的氨基酸组成。

2. 与仅用大豆来源配制的对照日粮相比，日粮包括 200 g/kg 饲料的每种豆类样品，其中豆类替代了豆粕，并用于比较回肠氨基酸的消化率。豆类样品的氨基酸消化率系数通过置换法获得。

3. 数据显示，一种大田豆样品，品种 Sultan，其氨基酸消化率低于其他 9 种样品（P < 0.05）。该样品的单宁含量较高，可能影响了氨基酸的消化率。