在 brojler 营养中喷雾干燥血可以改善表现,肠道健康和尸体特征
Luzia Trajano da Silva1, Adiel Vieira de Lima1, Danilo Vargas Gonçalves Vieira2
1Federal University of Paraíba, Department of Animal Science, Areia, Paraíba, Brazil.
Poultry science
|February 4, 2026
概括
喷雾干燥的猪血补充剂改善肉的表现和肠道健康,最佳含量水平根据养殖母的年龄而异. 这种饮食策略增强了肉的畜牧技术结果和尸体特征.
科学领域:
- 动物科学动物科学
- 禽类的营养 养 养
- 猪血利用的方法
背景情况:
- brojiler生产面临的挑战是繁殖母的年龄影响的质量.
- 重复使用的垃圾和高种群密度可能会影响肉肠道的健康和性能.
- 喷雾干燥的猪血 (SPP) 是年幼动物的潜在料成分.
研究的目的:
- 评估SPP对 brojler表现,肠道形态和微生物特征的影响.
- 调查繁殖母年龄 (36周与56周) 对SPP疗效的影响.
- 在具有挑战性的养殖条件下 (再利用垃圾,高密度) 确定最佳的SPP纳入水平.
主要方法:
- 一个2x4的因数实验,使用6000只Cobb®500肉.
- 治疗包括两个育种年龄和四个SPP水平 (0%,0.25%,0.5%,1.0%).
- 评估涵盖了五个生长阶段的性能,肠道组织学,微生物学和尸体特征.
主要成果:
- 育种者的年龄影响了体重,料转化和肠道形态 (维卢斯高度,密室深度).
- 包括SPP改善了体重增加,料摄入量和组织学参数,长达14天.
- 在生长,料摄入量和死亡率方面,观察到育种者年龄和SPP水平之间的显著相互作用.
结论:
- 饮食SPP增强肉肠道形态和动物技术性能.
- 最佳的SPP补充时间有所不同:老品种的肉长达7天,年轻品种的肉长达21天.
- 在具有挑战性的环境条件下,SPP显示了改善肉生产的潜力.
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