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与产卵生理学更一致的不平衡养模式可以改善产卵期晚期产卵期产母的蛋质量
Yan Hu1, Yijian Zhang1, Hong Yao1
1Jiangsu Institute of Poultry Science, Yangzhou 225125, China.
Animal nutrition (Zhongguo xu mu shou yi xue hui)
|December 1, 2025
概括
一种新的不平衡养模式通过提高的利用率和肠道健康来改善老的蛋质量. 这种养策略有利于产卵的生理和福利.
科学领域:
- 动物科学动物科学
- 禽类的营养 养
- 蛋生产 蛋生产
背景情况:
- 蛋质量对于家禽生产和福利至关重要.
- 在蛋形成过程中满足老年产母的特定需求是一个挑战.
- 现有的养技术可能与产卵的生理需求不完全一致.
研究的目的:
- 评估不平衡养模式对老母蛋质量的有效性.
- 研究不平衡食对代谢和肠道健康的影响.
- 为了确定这种养模式是否允许在不损害蛋完整性的情况下降低食度.
主要方法:
- 进行了一项2x2因子实验,对288只年长的Hy-line产母进行了测试,测试了两种食度 (3.5%和3.0%) 和两种养模式 (平衡与不平衡).
- 不平衡的养模式涉及在下午2点之后提供三分之二的每日料.
- 分析了蛋质量参数,料摄入量,料转化率,骨矿物质密度,肠道形态,基因表达和肠道微生物群.
主要成果:
- 不平衡养显著降低了平均每日料摄入量,并改善了料转换率.
- 饮食中较低的水平对蛋的比例,强度和厚度产生了负面影响.
- 不平衡养通过增加杆和哺乳动物层厚度来增强蛋厚度,改善骨矿物质密度,并积极调节肠道完整性,透性和有利于吸收的特定肠道细菌.
结论:
- 不平衡的养模式有效地改善了老母的蛋质量和利用率.
- 这种养策略增强了肠道健康,有可能使食水平降低,而不会影响蛋质量.
- 不平衡养提供了一种有前途的方法来改善产母的福利和减少肠道负担.
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