饮食中的25-基胆卡西费醇和额外的维生素E可以改善骨发育和高密度养殖肉的抗氧化能力
Chuanpi Xiao1,2, Qijiang Zhu1, Luke Comer3
1Key Laboratory of Efficient Utilization of Non-grain Feed Resources, Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271000. China.
Journal of animal science
|November 7, 2023
概括
补充肉饮食中的25-基胆硫醇[25-OH) D3]和维生素E可以改善料转化和骨健康. 这些维生素饮食减轻了高密度养殖对肉的负面影响.
科学领域:
- 禽类的营养 养
- 动物科学动物科学
- 肉生产 肉生产
背景情况:
- 肉养殖场的高种群密度可能会对动物福利和表现产生负面影响.
- 用维生素补充食,特别是维生素D3和维生素E,对肉的健康和发育起着至关重要的作用.
研究的目的:
- 为了研究25-基胆硫醇[25-(OH) D3]和额外的维生素E对肉生长,抗氧化能力,骨发育和尸体特征的影响.
- 在商业环境下,在不同种群密度 (高低) 下评估这些影响.
主要方法:
- 一个2x2的因数设计被用于118,800个Arbor Acres肉.
- 治疗包括两种食维生素水平 (正常与25-OH) D3 + 维生素E) 和两种种群密度 (高:20只/m2与低:16只/m2).
- 测量参数包括42天的生长性能,抗氧化酶活性,骨参数和尸体特征.
主要成果:
- 高密度养殖对早期生长产生了负面影响,但增加了每面积的肉产量.
- 维生素饮食在较晚的生长阶段改善了料转化率 (FCR),并增强了抗氧化剂状态 (catalase,谷氨过氧化酶).
- 组合维生素治疗显著改善了骨发育 (四足长度,股骨强度) 和血清维生素E水平,特别是在高密度条件下.
结论:
- 25-基胆硫醇[25-(OH) D3]和额外的维生素E有效抑制氧化应激,并改善高密度养对 brojler 骨发育的负面影响.
- 补充维生素的饮食可以改善 brojler FCR,而高密度养殖可以导致每单位面积更好的经济结果.
- 优化食维生素策略以及养殖密度管理对于高效的肉生产至关重要.
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