ABSTRACT

1. The chemical composition and physical characteristics 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, and were used to compare broiler growth performance and determine N-corrected apparent metabolisable energy (AMEn) and nutrient utilisation. The AMEn and nutrient retention coefficients for the bean samples were obtained via the slope-ratio method. The relationships were examined between variation in nutritive value for broilers and the laboratory analysis of the bean samples.

3. The data showed significant differences (P < 0.05) among the bean cultivar samples for feed conversion ratio, AMEn and dry matter retention (DMR) coefficients. Further analysis showed that the feeding quality of different field bean cultivar samples, measured as AMEn, was highly correlated to crude protein (CP) (P < 0.05) and colour (P < 0.001) of the samples. Thus, beans with higher CP and pale colour had superior feeding value for broilers.

抽象的

1.测定了同一收获年度的10种不同英国种植的田间豆品种样品的化学成分和物理特性。

2.饮食中每个豆样品的含量为200 g / kg，用于比较肉鸡的生长性能并确定N校正的表观代谢能（AMEn）和养分利用。豆样品的AMEn和养分保留系数通过斜率比法获得。检查了肉鸡营养价值变化与豆类样品实验室分析之间的关系。

3.数据显示豆类品种样品之间的饲料转化率，AMEn和干物质保留（DMR）系数存在显着差异（P <0.05）。进一步的分析表明，以AMEn衡量的不同田间豆品种样品的饲喂质量与样品的粗蛋白（CP）（P <0.05）和颜色（P <0.001）高度相关。因此，具有较高CP和浅色的豆类对肉鸡具有较高的饲喂价值。