在成长中的狗中,对饮食消化能力,微生物群和肠道发酵代谢物的纵向研究
Eduarda L Fernandes1, Renata B M S Souza1, Lorenna N A Santos1
1Department of Animal Science, Federal University of Paraná, Rua dos Funcionários, 1540, Curitiba, Paraná 80035-050, Brazil.
Journal of veterinary internal medicine
|February 26, 2026
概括
由于年龄和饮食,幼犬和成年狗在营养消化能力和便特征上存在差异. 狗的肠道微生物组在8个月内成熟,影响消化健康.
科学领域:
- 兽医营养学 兽医营养学
- 狗胃肠病学 狗胃肠病学
- 微生物组研究 微生物组研究
背景情况:
- 由于胃肠系统未成熟,小狗表现出独特的生理特征.
- 了解这些差异对于优化小狗的营养和健康至关重要.
研究的目的:
- 评估年龄和饮食消费如何影响成长中的狗的明显饮食消化系数 (ADC),便参数和肠道微生物群.
- 确定狗消化和微生物殖民的关键发展里程碑.
主要方法:
- 这是一项前性研究,涉及8只在不同年龄 (2-14个月) 的狗和12只在14个月的狗.
- 两项实验研究了年龄和两个养群体:成年人摄入量 (AI) 和小狗摄入量 (PI) 对狗的消化参数的影响.
主要成果:
- 年龄较大的狗表现出较低的干物质 (DM),提取物和能量ADC,但较高的原蛋白 (CP) ADC.
- 年轻的狗有较低的便DM,较差的便分数和较高的便产量. 随着年龄的增长,便代谢物和微生物种群 (例如,链球菌,大肠杆菌) 的显著变化被观察到.
- 与成人摄入 (AI) 狗相比,在小狗摄入 (PI) 中的狗显示了较低的DM,有机物和CP的ADC,具有明显的便代谢物概况.
结论:
- 狗的年龄和饮食摄入量都显著影响了狗的营养消化能力,能量吸收和便微生物组合.
- 狗便微生物组和相关的发酵代谢产物在8个月左右稳定.
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