肉类的水摄入量的定量和分子方面
Samuel E Aggrey1, Ahmed F A Ghareeb1, Marie C Milfort1
1Water Intake Genomics Laboratory, Department of Poultry Science, University of Georgia, Athens, GA, 30602.
Poultry science
|August 26, 2023
概括
肉肉肉是什么意思 肉肉
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 动物生理学 动物生理学
- 基因组学就是基因组学.
背景情况:
- 水对于家禽生产至关重要,但个人摄入量数据及其经济联系很少.
- 由于气候变化影响到水资源的可用性,有效地利用水资源至关重要.
- 了解吸水机制是可持续家禽养殖的关键.
研究的目的:
- 调查肉个体的饮用水量及其与生长特征的关系.
- 引入和评估水转化比率 (WCR) 和残留水摄入量 (RWI) 作为用水效率的衡量标准.
- 为了探索肉饮水摄入量变化的分子基础.
主要方法:
- 收集了来自520只肉 (14-42天) 的个人饮水量,料摄入量和体重增加数据.
- 计算WCR和RWI以评估吸水效率.
- 在低和高RWI组的下丘脑和脏中分析了关键基因 (AVP,CasR,SCNN1A,SCNN1D,AQP2-4) 的mRNA表达.
主要成果:
- 在水摄入量和料摄入量 (r=0.77) 和体重增加 (r=0.80) 之间发现了正相关性.
- 具有较低残留水摄入量 (LRWI) 的鸟类表现出抗利尿激素 (AVP) 和水素 (AQP) 的升调mRNA表达.
- LRWI鸟类的排泄物水分显著降低,这表明水的再吸收效率更高.
结论:
- brojlers 的吸水效率与影响水的再吸收的遗传因素有关.
- 在LRWI鸟类中AVP和AQP基因的升级表明脏水的再吸收增强.
- 排泄物湿度水平可以作为评估家禽吸水效率的潜在代理特征.
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