不同颗粒大小的麦体的有效性,在减轻被养为低密度原蛋白饮食的 brojlers 的性能恶化
M Naeem1, E Burton1, D Scholey1
1School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Southwell, NG25 0QF, United Kingdom.
Poultry science
|August 10, 2023
概括
低蛋白质肉饮食中的粗麦 (850微米) 改善了料转化率和营养利用率. 这种饮食策略还减少了肉类家禽的垃圾,水分和脚皮肤炎得分.
科学领域:
- 动物科学动物科学
- 禽类的营养 养
- 消化系统生理学 消化系统生理学
背景情况:
- 食纤维颗粒大小影响家禽的前肠发育.
- 低原始蛋白质饮食需要优化肉的性能.
- 麦皮是家禽的潜在纤维来源.
研究的目的:
- 为了研究麦体颗粒大小对肉性能的影响.
- 为了评估低蛋白饮食养肉的营养消化能力和肠道发育.
- 评估麦体对子质量和脚健康的影响.
主要方法:
- 罗斯308只雄性肉小被食不同大小的麦体颗粒 (400微米和850微米) 或对照.
- 测量了生长性能,料转换率 (FCR),子和腹腔体重量.
- 分析了氨基酸的明显阴道消化能力 (AID),代谢能量 (ME),子特征和脚皮炎.
主要成果:
- 与负对照 (NC) 和400微米麦 (OH400) 相比,养850微米麦 (OH850) 的肉显示出更好的FCR.
- OH850显著增加了胃肠的重量和减少了消化器的颗粒大小,表明增强了前肠发育.
- 通过OH850改善了几种氨基酸的AID和ME;垃圾水分,和脚得分减少了.
结论:
- 在低蛋白饮食中加入粗麦皮 (850μm GMD) 有助于肉前肠发育和营养利用.
- 这种饮食方法改善了料转换率,并减少了对垃圾质量和脚健康的负面影响.
- 粗麦体是优化在低蛋白养制度下肉生产的有价值的料成分.
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