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Poultry with Dr. Jeffery Escobar
What is the major effect of heat stress?
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7 Replies
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The major effect of heat stress in poultry is <mark>a decline in production performance, including reduced growth, egg production, and meat quality, along with increased mortality</mark>. This is primarily due to physiological disturbances like altered gene expression, immune system dysregulation, and changes in metabolic processes that impact the birds’ ability to regulate body temperature and utilize nutrients.
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Heat stress can profoundly affect both humans and animals, disrupting various biological functions. In humans, it can lead to symptoms like dehydration, heat exhaustion, and in severe cases, heat stroke, which is life-threatening and requires immediate medical attention. Cognitively, it may impair decision-making, concentration, and overall mental performance. It can also exacerbate underlying health conditions, especially cardiovascular and respiratory issues. For animals, heat stress may reduce appetite, lower reproduction rates, and compromise immune function. In plants, it can hinder photosynthesis, reduce crop yields, and lead to wilting or premature death.
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The major effect of heat stress in animals—especially in poultry and livestock—is a decline in productivity due to physiological and metabolic disturbances. It severely impacts growth, feed efficiency, reproduction, immunity, and overall animal welfare.
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The major effect of heat stress in poultry is a significant reduction in feed intake, which can lead to decreased growth rates and lower egg production. Heat stress also affects overall health, making birds more susceptible to diseases and reducing their immune response. Additionally, it can cause behavioral changes and increased mortality rates if not managed properly.
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The consequence of heat stress is poor feed intake, which leads to poor growth performance. Thus, it is important to keep birds as cool as possible during the hot hours of the day. Remember to offer cool drinking water to birds. The temperature of the drinking water should be between 10 and 15oC and for sure below 24oC during the hot hours of the day. Drinking water temperature at or above 35oC will likely results in reduced water intake. Also, during heat peak hours, feed withdrawal may be implemented and feed may be offered during the cooler hours of the day or during the night along with artificial lighting.
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Right
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The major effect of heat stress is the disruption of the body’s ability to regulate its internal temperature, which can lead to serious health problems
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