生物气候区划和气候变化对巴西马拉纳州的乳牛的影响
Andressa Carvalho de Sousa1, Andreza Maciel de Sousa1, Wellington Cruz Corrêa1
1Chapadinha Science Center, Federal University of Maranhão, Chapadinha 65500-000, Brazil.
Animals : an open access journal from MDPI
|June 13, 2025
概括
巴西马拉纳州的生物气候区划显示,乳牛遭受的热量压力很大. 未来的气候情景预计将导致大量的牛奶产量损失,需要适应性政策来实现弹性畜牧系统.
科学领域:
- 农业科学 农业科学
- 气候科学 气候科学
- 动物科学动物科学
背景情况:
- 气候变化对畜牧生产力和可持续性构成重大威胁.
- 乳牛特别容易受到热应激的影响,影响牛奶产量和整体健康.
- 针对气候适应性畜牧系统的有效公共政策需要准确的生物气候区分.
研究的目的:
- 在巴西马拉纳州进行乳牛养殖的生物气候区分.
- 评估气候变化对乳牛热应激的当前和未来影响.
- 为畜牧业的气候适应政策制定提供信息.
主要方法:
- 应用大数据分析和预测地缘统计建模.
- 利用了历史气候数据 (2012-2023) 和未来气候场景 (RCP4.5,RCP8.5).
- 生成了温度湿度指数 (THI) 的Kriging地图,以评估热应力水平.
主要成果:
- 观察到北南热梯度下降,THI在关键时期超过80度.
- 热应激会导致高产牛的牛奶产量损失高达5公斤/牛/天.
- 未来的预测表明,THI值普遍很高,导致潜在的损失为4-9公斤/牛/天,具体取决于产量.
结论:
- 生物气候区分对于制定乳牛的区域特异性干预措施至关重要.
- 气候变化,特别是气温上升,将对马拉纳的牛奶产量产生重大影响.
- 基于生物气候区划的知情政策制定对于建立适应气候的畜牧系统至关重要.
更多相关视频
07:46Author 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
484
06:41Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes
Published on: March 28, 2025
731
相关概念视频
What is Climate?
18.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.4K
Adaptations that Reduce Water Loss
25.3K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.3K
Global Climate Change
24.3K
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.
24.3K
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K
Plant Breeding and Biotechnology
18.9K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.9K
