In recent years, many diseases have been found to be associated with the use of chicken layer cages, also known as cage disease. The following are common:
1. Cage laying hens fatigue (tiredness) The symptoms of this disease are increased bone fragility, muscle relaxation, sagging wings, difficulty standing, and finally dehydration and weight loss. This disease occurs mostly during the peak of egg production, and the incidence rate is related to various factors. The cause is mostly related to the metabolism of calcium. Take the afternoon to supplement the granular calcium, and ensure that the daily intake of 3.3-4.2 grams of calcium, can effectively prevent the disease.
2. Fatty liver syndrome is also called fatty liver hemorrhagic disease. This disease is the result of excessive fat deposition in the liver of sick chickens. According to the study, it is a metabolic disease, which is closely related to nutrition, but it occurs mostly in cage chickens. The mortality rate is about 1.7%, and the hot area is about 4.6% or even higher. The main loss is a significant drop in egg production. The incidence is mostly in the peak period of egg production, stress period and high ambient temperature. When the disease occurs, the egg production rate can be reduced by 10%-40%, or the high-yield chicken with good body condition suddenly dies. Limiting feeding and reducing energy intake, while increasing the levels of choline, vitamin B::, vitamin B: biotin, methionine and selenium in the diet will help prevent this disease. At the time of onset, vitamin E10000 international unit, vitamin B, 12 mg, choline chloride 1000 g, and inositol 908 g were added to each ton of feed, and the condition was relieved even after feeding for 2 weeks.
3. Panic disorder is also called hysteria. When the disease occurred, the flocks were stunned in the cage and panicked. Initially, a few chickens developed symptoms and eventually spread to the entire flock. The incidence of light chickens is generally higher than that of medium-sized chickens, and is not affected by chicken age, but the loss of laying hens is the largest. The onset time of the laying period is mostly 36-37 weeks old or the peak of egg production. There are many factors causing the disease, such as noise, flashing lights, broken water, excessive density, poor ventilation, clothing of the breeder, and excessive magnesium in the diet. The mitigation measures are to first relieve the cause, followed by 200 grams of niacin per ton of diet, with red light.