On May 22, Li Qinglai from Hanwang Town, Tongshan County, said that he had a total of more than 2,000 laying hens. There are now more than 200 laying hens displaying the phenomenon of not producing eggs in the nests. He asked how to let chickens end their brooding behavior. , restore its egg production performance. The process of incubating hatchlings of laying hens is called brooding. It is an instinct of hens and it is also a kind of physiological behavior. It is controlled by the physiological endocrine of chickens. When the prolactin secreted by the anterior pituitary gland increases, the ovarian ovary shrinks. On the nest phenomenon. In general, laying hens hold time in the period of 5-6 months when the ambient temperature rises, and they last for about 20 days, and they last for 1-2 months. Open stocking chickens have egg nests, and there are grass mats in the nests and the light is dark. In addition, there are too many egg deposits in the egg-laying nests, and low protein levels in the early stages of egg production can easily induce the nest hen nests. Eliminating hens' brooding phenomenon mainly regulates hormone levels in hens. The treatment recommended by Hou Lifu of the Animal Husbandry Bureau of Zhaoyuan City, Shandong Province, is to isolate the layered chickens in isolation, and then use the following methods to promote their alertness. (1) To catch up and hold the law, put the brood hens on the playground, and keep chasing them, so that the hens do not have the opportunity to squat, so that they will be awake. (2) The dungeon is awake and holds the brooding hens in the bonsai, and then adds water to them so that the water can reach the chicken cheekbones so that the hens can only stand and can not squat and promote their rousing. (3) Tetracycline, antipyretic analgesic tablets, calcium tablets (which can also be replaced with bone powder or eggshell powder), each one, and the laying hens are immediately fed with the symptoms of cuddling. (4) Each chicken is fed with aspirin tablets 0.5-1 tablet/day, and can be awakened when fed for 2-3 days. (5) Phosphate chloroquine tablets (0.25 grams per tablet), once a day, 0.5 tablets each, and even served for 2 days, the wake-up effect is above 95%. Using 1-2 quinine hydrochloride pills can also promote waking. (6) With 20% aqueous copper sulphate solution, 1 ml of intramuscular injection of each chicken will be effective in 1 day. (7) Testosterone propionate, intramuscular injection of 12.5 mg per kg of chicken body weight, effective for 4 days. (8) Triad hormone, 0.5 ml intramuscularly injected into each chicken, generally recovering eggs after 1 week. Eggs that are difficult to catch should be eliminated in time. After waking up, laying hens should strengthen their feeding and management. On the one hand, they should provide a comfortable and cool growth environment, keep the sheds well-ventilated, have sufficient light (open the lights at night and extend the light), and control the rearing density of chickens; On the one hand to provide adequate drinking water, in the daily feed to add some fish meal, soybean meal, etc., and timely add some vitamin A, vitamin D and vitamin E and other vitamins, can gradually restore the original laying chicken egg production rate.
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