What causes soft leg disease in caged laying hens?

Nowadays, most laying hen farms use cage systems for ease of management, but soft legs can occur during the rearing process, leading to a drop in egg production, paralysis, and even death. So what causes soft legs in caged laying hens? Let's take a detailed look together.

1. Nutritional causes

Soft legs in laying hens are mostly caused by calcium deficiency. When calcium, phosphorus, vitamins and other nutrients in the feed are lacking and the hens cannot replenish them for a long time, soft legs may occur.

Prevention and control measures: After soft legs appear, check the feed formula for the laying hens, adjust the levels of calcium, phosphorus and vitamins in the feed so that they meet the hens' needs, and ensure the calcium-to-phosphorus ratio is normal.

2. Environmental causes

When the temperature is high, the feed intake of laying hens decreases, so the nutrients they take in are insufficient, especially calcium, which is severely deficient, thus causing the soft leg phenomenon. In addition, stress caused by humans or other animals can also cause excessive movement in laying hens, leading to soft legs.

Prevention and control measures: During the hot summer period, take cooling and heatstroke prevention measures, strengthen ventilation, and at the same time increase the content of minerals and vitamins in the feed, so that even when feed intake declines, the hens can still obtain sufficient nutrients to meet their needs. Also keep the chicken house environment quiet to reduce stress in the flock.

3. Disease causes

Disease is also one of the main causes of soft leg disease in laying hens. Diseases that can cause soft legs in laying hens include Newcastle disease, Marek's disease, infectious encephalomyelitis, synovitis of the joints, colibacillosis, and staphylococcal infection.

Prevention and control measures: For diseases that can cause soft legs in laying hens, carry out vaccination measures to prevent disease occurrence. After disease occurs, confirm the diagnosis according to the symptoms shown by the disease, prescribe the right medicine, and treat promptly.

4. Feed nutrition

Laying hens are somewhat dependent on their feed, and long-term consumption of one kind of feed forms a certain palatability. If the feed formula or quality is changed within a short time, it may cause a decline in feed intake, leading to insufficient nutrient intake and causing soft legs.

Prevention and control measures: Therefore, in daily management, reduce feed changes; if a change is needed, carry it out gradually and slowly, and it is not advisable to change a large amount at once.

The above is an introduction to the causes of soft leg disease in caged laying hens. We hope it helps you. For more related knowledge, please stay tuned to us.