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温度和湿度指数对伊拉克的生长性能,结肠微生物群和血清代谢的影响

Keyao Li¹, Mahmoud M Abdelsattar², Mingming Gu¹

¹College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University, Fuzhou 350002, China.

Animals : an open access journal from MDPI

|June 28, 2023

概括

最佳的温度湿度指数 (THI) 对于肉的生长至关重要. 26.14的THI对子的生长和肠道健康产生了积极的影响,与THI值较高不同.

科学领域:

动物科学动物科学
环境生理学环境生理学
微生物学微生物学

背景情况:

温度湿度指数 (THI) 显著影响畜牧业生产.
了解THI对肉的影响对于有效的养殖至关重要.
子住房环境的THI水平呈现差异.

研究的目的:

研究不同THI值对肉生长,肠道微生物群和血清新陈代谢的影响.
为了确定肉福利和生产率的最佳THI范围.
探索潜在的生物标志物来预测环境THI水平.

主要方法:

对暴露于高THI (HG) 和低THI (LG) 的子组进行比较.
增长绩效指标的分析 (平均每日增长,料摄入量).
肠道微生物社区分析 (16S rRNA测序) 和血清代谢分析.
对热敏感性标记物的基因表达分析 (TRPV3,NGF).

主要成果:

高THI显著降低了肉的平均每日收益和料摄入量 (p < 0.05).
低THI增加了有益细菌的相对丰富度,如蓝病 (p <0.05).
特定的THI值 (26.14和27.25) 激活了不同的免疫和代谢途径,包括细胞因子-细胞因子受体相互作用和氨基酸生物合成.
五种代谢物准确地预测了环境THI水平,准确度为91.7%.

结论:

26.14的THI更适合肉的生长和肠道健康,而不是 27.25.
THI显著影响子的生长,肠道微生物组成和宿主新陈代谢.
代谢分析提供了在子中进行非侵入性THI监测的潜力.

关键词:

伊拉子伊拉子大肠的微生物群.增长表现成绩增长的表现.血清代谢物的血清代谢物温度和湿度指数的温度和湿度指数.

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