Summer is a challenging season for poultry farming, as it brings extreme heat and humidity that can significantly affect the health of laying hens. Poor ventilation, overcrowding, and improper management during this time can lead to a condition known as sudden death syndrome. This issue has become increasingly common in recent years, especially among newly introduced or high-producing hens. It's often referred to as "egg fatigue" or "summer disease," and it tends to occur more frequently during hot weather.

Some key characteristics of this condition include:

1. It mainly affects laying hens, particularly first-generation birds and those in peak production.
2. Many affected hens die at night, and dead birds are often found in the morning when feeding occurs.
3. Dead hens may show signs like a prominent cloaca and obesity, and some may appear to be in a pheasant-like state.
4. The condition often occurs suddenly when temperatures rise quickly, and it's not uncommon for multiple farms in the area to experience similar cases.

The causes of sudden death in laying hens during summer are varied. High temperatures and poor ventilation can lead to respiratory distress and acid-base imbalances, resulting in respiratory alkalosis. Additionally, if the housing conditions are inadequate and cooling systems are lacking, hens are more vulnerable to heat stress. Improper feeding practices, such as feeding only 3-4 times a day during the hottest hours, can also put extra strain on the heart, potentially leading to heart failure and death.

To prevent and control this issue, proper management is essential. Ensuring good ventilation, reducing stocking density, and maintaining clean and cool environments are crucial steps. One effective solution is the use of ecological fermentation beds, such as the Golden Fish Fermentation Bed. These beds improve the overall living environment by reducing stress, promoting better air quality, and supporting a healthier gut microbiome through beneficial bacteria. As a result, hens become more resilient and less prone to sudden death, making this method a valuable tool for farmers during the summer months.

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