在化后21至35天的日式长中的需求
Fahimeh Pourmollaei1, Mahmoud Ghazaghi1, Mohammad Rokouei1
1Department of Animal Sciences, Faculty of Agriculture, University of Zabol, Sistan, 98661-5538, Iran.
Poultry science
|January 4, 2025
概括
确定最佳的 (Ca) 水平对于的生长和骨健康至关重要. 这项研究发现,饮食中对骨密度的Ca需求可能高于年轻的生长性能.
科学领域:
- 动物营养 动物营养
- 鸟类生理学 鸟类生理学
- 骨的新陈代谢 骨的新陈代谢
背景情况:
- 是骨发育和家禽整体健康的重要矿物质.
- 最佳的食水平对于最大限度地提高生长性能和确保成长中的鸟类的骨完整性至关重要.
- ,作为一个快速生长的鸟类物种,具有特定的营养需求,需要精确的估计.
研究的目的:
- 为了确定最佳的食 (Ca) 需求增长性能和骨健康在从21到35天后.
- 评估不同饮食中的Ca水平对体重增加,料转化率和骨特征的影响.
- 建立精确的Ca建议,考虑生长和骨完整性.
主要方法:
- 测试了五种饮食治疗方法,其Ca水平在0.45%至1.05%之间.
- 使用一个完全随机的设计,每只有6个复制品和12只鸟.
- 测量的主要参数包括体重增加,料转化率,骨-Ca,骨灰,骨折强度,Seedor指数,骨质量和骨长度.
主要成果:
- 体重增加,骨-Ca,骨灰和骨折强度显示,随着饮食中较高的Ca水平,二次性增加.
- 随着饮食中的Ca水平的增加,料转化率倾向于下降.
- 对于不同的参数,最佳Ca的要求有所不同,骨健康指标表明需要的需求高于仅仅增长性能.
结论:
- 在中,最佳骨密度和强度的食的需求可能超过生长性能.
- 这项研究表明,在化后的中,最佳的摄入水平为0.75%至0.87%,有利于的整体生长和骨健康.
- 更高的水平可能是必要的,以最大限度地提高的骨矿化和结构完整性.
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