相关实验视频

Updated: Sep 12, 2025

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth

Published on: September 20, 2021

根据阿肯色州净能量的计算,生产能预测肉的加工重量,肉的市场价值和毛利

Diego A Martinez¹, Nawin Suesuttajit¹, Cole Umberson¹

¹Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA.

Poultry science

|August 6, 2025

概括

生产能 (PE) 是肉饮食优化的优质指标,与传统能源系统相比,在预测肉类生产和经济结果方面表现出更高的灵敏度和精度.

科学领域:

动物科学动物科学
营养生理学营养生理学
养家禽生产养家禽生产

背景情况:

传统的能源系统,如N校正的明显代谢能 (AMEn) 和经典净能 (CNE),在预测肉性能方面存在局限性.
生产能源 (PE) 为增长和生产提供了潜在的更准确的能源利用量.

研究的目的:

评估生产能 (PE) 对AMEn和CNE的敏感性,以预测母乳肉生产,料效率和肉经济性.
开发和验证使用PE处理特征和经济动态的模型.

主要方法:

使用了96个笔,其中有12种饮食治疗,氨基酸,粉和能量密度各不相同.
使用双能X射线吸收计和热量计测量处理特征和能量分区 (NEg,NEm,FHP).
计算了PE (NEg + NEm) 和CNE (AMEn - 热增量),以及各种经济参数 (MVG,GPG).

主要成果:

与AMEn和CNE不同的是,PE效率在所有治疗方法中保持稳定.
乳腺蛋白 (PE) 显示出对乳腺肉益和料效率变化的敏感度分别是CNE的2.0倍和2.7倍.
PE显著影响了加工和经济特征,具有很高的预测精度 (R2 > 0.97).

结论:

生产能 (PE) 是一个比AMEn和CNE更敏感和精确的指标,用于优化肉的饮食.
PE准确地预测肉类生产,料效率和经济表现,有助于饮食配方以提高利能力.

关键词:

经济学经济学经济学能量代谢能量代谢能源净值是指能源净值.处理重量处理重量.生产能源是生产能量的产能.

更多相关视频

Author Spotlight: Improving Beef Cattle Nutrition and Production with a Focus on Feed Efficiency and Meat Quality Traits Through Advanced Biochemical and Molecular Assays

Author Spotlight: Improving Beef Cattle Nutrition and Production with a Focus on Feed Efficiency and Meat Quality Traits Through Advanced Biochemical and Molecular Assays

Published on: July 12, 2024

Determining Basal Energy Expenditure and the Capacity of Thermogenic Adipocytes to Expend Energy in Obese Mice

Determining Basal Energy Expenditure and the Capacity of Thermogenic Adipocytes to Expend Energy in Obese Mice

Published on: November 11, 2021

相关概念视频

Production Efficiency

Production Efficiency

Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).

Energy Budgets

Energy Budgets

Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...