Why do Laying Hens Die Suddenly in Summer?

During the breeding of laying hens in summer, the sudden death of hens often occurs. But farmers do not pay enough attention, think it is caused by heat stroke or fatty liver disease. In fact, the sudden death of laying hens in summer is a common disease called Cage Layer Fatigue. So why do the laying hens suddenly die? What are the symptoms? How to prevent it? This article will introduce a new feed additive bile acids to solve this problem.

Causes of disease

1. Lack of exercise

For cage layers, due to the lack of activity space, lack of movement, unable to crouch normally in the cage, plus the large sloping mesh, uneven stress on the toe, resulting in poor development of the leg bones and muscles, resulting in fatigue.

2. Dietary nutrition imbalance

Some of the nutrients required for cage layers can not be taken from the natural environment, only from the feed. Therefore, the lack of some nutrients in the feed or the improper ratio can cause the body to use the substances in the body to achieve the purpose of laying eggs, resulting in muscle atrophy and inability to stand.

3. The effect of heat stress

Heat stress causes body temperature to rise. Because the new hens have rich feathers, less activity in the evening, and the house is generally windless, and the heat is not easy to escape, so the death rate increases from midnight to early morning.

4. Poor breeding environment

The weather is sultry and hot, the density of laying hens is too high, the condition of house is poor, lack of oxygen, the oxygen carrying capacity of blood is reduced, and the oxygen supply is insufficient; In addition, they seldom receive sunlight, so they cannot synthesize vitamin D by themself, which affects the absorption of calcium by the body, resulting in calcium deficiency.

Symptoms

The water consumption of the laying hens increase suddenly, and the feed intake decrease. The lappet trembles and opens the mouth to breathe, but does not have the obvious wheezing sound. Pull yellowish-white dung. The cockscomb is purple, the skin is red, the feathers are fluffy, the chicken body is hot when touched, and the cockscomb and chicken feet are hot. With the development of the disease, the legs and wings are weak, and in severe cases, they can even cause fractures and paralysis.

Acutely onset hens died suddenly. The spirit and feed intake of sick hens are completely normal during the day, but they die in the cage the next morning, and the higher the yield, the higher the mortality rate.

Preventions

1. When the weather is hot, the disease is prone to occur due to insufficient supply or intake of vitamin A, vitamin D, and calcium. The house temperature can be reduced by reducing the density of the flock and increasing ventilation. Avoid feeding under high temperatures and limit feeding in an appropriate amount. Supply sufficient drinking water, increase the amount of calcium and vitamin A, D, C, baking soda and sedative drugs. Add Lachance bile acids to the feed to promote the digestion and absorption of fat-soluble vitamins, and add multivitamin and electrolyte supplements to drinking water.

2. Penicillin can be used to treat the seriously ill hens according to 20,000 international units/bird drinking water. For the days of age at which sudden death is prone, adding 500g of Lachance bile acids per ton of feed can reduce the incidence of sudden death.

3. Calcium deficiency and poor physical development caused by various reasons are the direct causes of Cage Layer Fatigue.

Lachance bile acids can promote the absorption of fat-soluble vitamins A, D, E, and K in feed. Therefore, bile acids can effectively avoid the occurrence of calcium deficiency in laying hens, alleviate the stress on the gastrointestinal tract due to increased water consumption in summer, and fully guarantee the body's nutritional requirements, especially the demand for lipid substances.

In addition, premature sexual maturity, lack of exercise, certain parasitic diseases, poisoning diseases, management reasons and genetic factors can also cause this disease.