生猪中暑

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极端高温下多地频发生猪中暑,传统养猪场亟待升级
Xin Jing Bao· 2025-07-15 10:56
Core Insights - The extreme heat this summer has led to an unusual increase in heat stress among pigs, particularly in regions like Northeast China, where such conditions were previously uncommon [1][3][4] - Pigs are more susceptible to heat stress than humans due to their underdeveloped sweat glands and inefficient heat dissipation methods [2][4] - The risk of heat stress is exacerbated in traditional pig farming setups, which often lack adequate cooling and ventilation systems [3][5] Group 1: Heat Stress in Pigs - Pigs exhibit symptoms of heat stress similar to humans, including rapid breathing and body temperature increase [1][6] - The mortality rate for pigs suffering from moderate to severe heat stress can be as high as 50% to 80% [6][7] - High humidity levels can significantly impair pigs' ability to cool down, leading to increased instances of heat stress [2][5] Group 2: Farming Practices and Equipment - Modern pig farms are increasingly equipped with advanced temperature and humidity control systems, which help mitigate heat stress risks [4][7] - Traditional pig farming methods, characterized by high stocking densities and inadequate cooling systems, are particularly vulnerable to heat stress [5][6] - The design and location of pig farms play a crucial role in their ability to manage heat stress effectively [4][5] Group 3: Management and Prevention Strategies - Proactive management, including regular monitoring of temperature and humidity, is essential to prevent heat stress in pigs [7] - In the event of heat stress, immediate intervention is critical, including relocating affected pigs to cooler areas and administering specific medications [7][6] - Investment in modern cooling technologies is necessary for small to medium-sized farms to effectively manage heat stress [7]