相关实验视频
Updated: May 23, 2025

04:55
Using a Thermal Camera to Measure Heat Loss Through Bird Feather Coats
Published on: June 17, 2020
3.4K
研究笔记:堆积行为对产卵棚温度和二氧化碳的影响
Helen E Gray1, Jack O'Sullivan1, Lucy Asher1
1School of Natural and Environmental Sciences, Newcastle University, NE1 7RU, UK.
Poultry science
|March 8, 2025
概括
产母的堆积行为在自动回归模型中没有显著影响室温度或二氧化碳水平. 然而,一个随机效应模型表明,增加堆和更高的温度之间存在很小的关联.
科学领域:
- 动物行为 动物行为
- 环境科学 环境科学
- 农业科学 农业科学
背景情况:
- 产母的堆积行为在家禽业中越来越令人担忧,影响经济和动物福利.
- 大群的近距离产生热量,并会影响空气质量,特别是二氧化碳 (CO2) 水平.
研究的目的:
- 调查堆积行为对舍内的微环境的影响,特别是温度和二氧化碳度.
- 分析堆积事件的频率和持续时间与环境参数之间的关系.
主要方法:
- 在大约21天内对12只群体的视频录像被用于注释堆积行为.
- 鸟箱系统每分钟收集匹配的记录温度 (°C) 和二氧化碳 (ppm) 数据.
- 用贝叶斯的多层次建模,包括自回归和随机效应模型来分析数据.
主要成果:
- 自动回归模型显示,堆积行为与温度或二氧化碳水平之间没有显著的关联.
- 一个随机效应模型表明,增加堆数量,堆持续时间和更高的温度之间存在很小的关联.
- 这种温度相关性因效应大小小和自身回归模型中缺乏复制而被谨慎解释.
结论:
- 该研究发现,有限的证据表明,的堆积行为与棚室温度或二氧化碳度的显著变化有关.
- 需要进一步的研究来探索动物行为与直接环境之间的复杂相互作用.
相关概念视频
Hot Weather Concreting
52
Concreting at elevated temperatures accelerates the hydration process, leading to quicker setting but potentially reducing the long-term strength of the concrete structure. Additionally, low air humidity fosters rapid moisture loss from the concrete, resulting in reduced workability, pronounced plastic shrinkage, and a higher likelihood of crazing.
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
52
Global Climate Change
24.1K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.1K
Factors Affecting Body Temperature
3.7K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
3.7K
Body Temperature
858
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
858

