Caged chicken fatigue is also known as cage-producing laying hens osteoporosis or cage chicken cockroaches, the United States called this disease pheasant deaths. The disease is one of the most serious diseases in caged egg hens. It is also the most prominent metabolic disease in modern egg-laying chickens. Most of the affected chickens are chickens and high-yielding chickens soon after their arrival. The losses caused by the disease are many, mainly causing the laying lice, death, and egg production decline, and also affect the slaughter and processing of chickens. Symptoms of the most acute-onset chickens often die suddenly. The rate of egg production at the time of first-production chickens is between 40% and 60%, the most deaths, and no symptoms before death. The chickens with a healthy surface and good egg production could not pick up diseased chickens during the day, but they could be found dead the next morning. The higher the production of chickens, the higher the mortality rate. At this time, there was no change in eggshell strength, and the rate of egg breakage was not high, and the dead chicken cloacae protruded. An acutely diseased chicken gizzard cannot stand and sit on an ankle joint. If the feed is placed around a pheasant, the pheasant still feeds. Production of thin preserved eggs, egg production rate decreased significantly. If pheasants were singled out from cages, most chickens improved significantly after two or three days. Individuals with severe disease can recover within a week or two. The chronic type mainly manifests itself in older chickens that produce older eggs, mainly due to the older age and lower calcium intake and secretion. Eggshell thinning, rough, poor strength, more damage. Post-mortem changes 1, the most acute type of chicken disease after necropsy mainly as follicular bleeding, liver enlargement, congestion, and sometimes white spots, pulmonary congestion, heart dilation, fallopian tubes are often eggs. Death chicken has a good sensation. 2, glandular gastric ulcer, glandular stomach wall thin, glandular stomach nipple out brown liquid. 3, acute disease chicken bones are easy to break, become soft, fractures, can be found in the leg bone, wing and thoracic vertebrae, often deformed. Prevention and cure 1. For broiler young hens, when they are mature, they should raise feed nutrient levels; at the same time, calcium and phosphorus should be taken into account to ensure the quantity and quality of bone meal in the diet. Calcium and phosphorus are sufficient for egg production. . 2, to strengthen the ventilation of the chicken house, to ease all kinds of stress. 3. During the onset of disease, adding nutrient additives such as electrolytic multi-dimensional in the material and water can greatly reduce the mortality rate. When the egg production rate is 20% and it is taken in a preventive amount during the early summer season, this disease can be prevented. 4. For the most acute chickens with severe morbidity, turn on the lights for drinking for 1 hour from 11 to 12 in the evening to reduce the viscosity of the blood, reduce the burden on the heart and reduce the mortality. At the same time, the caged pheasant should be singled out in a timely manner, given water, material, and intramuscular injection of vitilin glue calcium injection, oral calcium tablets, so that as soon as possible to recover. China Agricultural Network Editor
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