甘氨酸对蛋质量,蛋超结构和老产母元素沉积的影响
Animal : an international journal of animal bioscience
|March 29, 2024
概括
甘氨酸 (MG) 补充剂改善了老母的蛋强度和质量. 从MG获得的80 mg/kg Mn的最佳剂量,与无机硫酸单 (MSM) 相比,增强了沉积和蛋结构.
科学领域:
- 动物科学动物科学
- 禽类营养 养 禽类营养
- 微量矿物质的新陈代谢
背景情况:
- 蛋质量差是老母的一个重要问题,影响了该行业的利能力.
- 微量元素,特别是 (Mn),对于蛋的形成至关重要.
- 有机微元素与无机形式相比,具有更高的生物可用性和更低的排泄率.
研究的目的:
- 为了评估甘氨酸 (MG) 对蛋质量,元素沉积和老产母的超结构的影响.
- 为了比较有机MG与无机硫酸单 (MSM) 的疗效.
主要方法:
- 720只年龄的Hy-Line棕色 (70周大) 接受了12周的食,补充了来自MSM (120毫克/公斤) 或MG (40,80,120毫克/公斤) 的Mn.
- 分析了蛋的强度,超结构 (乳母,和有效层),以及蛋,骨和蛋黄中的Mn含量.
主要成果:
- 与MSM相比,在6周和12周后,食用80mg/kgMn从MG的食补充剂显著增加了蛋的强度.
- 补充MG改变了蛋的超结构,减少了哺乳层厚度,增加了和有效层比例.
- 在蛋,骨和蛋黄中的含量在被食MG时升高,特别是在80和120mg/kg剂量时.
结论:
- 用80mg/kg的Mn从MG的食补充剂有效地改善了老年产母的蛋强度和质量.
- 与MSM相比,MG增强了沉积,并优化了蛋超结构.
- 最佳的MG补充可以提高利用效率,提高产母母的整体性能.
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