Generally, when the egg market is in good condition, laying hens enter the moulting period for the rest of production. In order to obtain higher economic benefits, forced moulting is required to shorten the natural moulting period. I. Chemical moulting At present, the most used chemical method is to feed high-zinc diets. For example, if you feed 2% zinc in your diet, your egg production rate will drop below 50% of your original egg production rate after 3 days, and you will stop production for 6-7 days. After 2 weeks, you will see the hen's production. The egg rate can exceed the level before feeding zinc. Second, the hunger law mandatory moulting By cutting off water, cutting off materials, and not supplementing with artificial light, artificially impose stress factors on chickens, disrupting the normal life of chickens, leading to loss of hormone secretion, decreased lutein, which in turn promotes the decrease of estrogen in the ovary, resulting in atrophy of the follicles. Causes suspension of production and moulting. The methods of water-cutting, material-breaking, and hunger forced moulting without artificial light can achieve certain effects in practice. 1. Fast Mandatory Moulting: The goal is to return the hens to 70% egg production within 6 weeks. That is, the material was cut off for 10 days and supplemental light was stopped, and drinking water was provided. 10 days after the material was cut off, the feed for laying hens was freely eaten, and the light before moulting was restored. 2. Common forced moulting method: The goal is to achieve a chicken egg production rate of more than 70% within 6 to 8 weeks. Method of operation: 10 days off the material, the open broiler house ceases to add light, the light in the closed house is shortened to 8 hours, and on the eleventh day, the granules are continuously fed for more than 4 weeks, and the egg is started to be laid when the egg is resumed. Chicken feed and restore light. Third, the merger method mandatory moulting This method is an improved method of forced moulting using the strengths of hunger and chemistry. Methods as below: Cut off the water and cut off the feed for 2 and a half days. Stop artificial supplements and provide drinking water. From the third day onwards, allow the chicken to freely feed 2% or 2.5% zinc sulphate containing zinc and feed it for 7 days. Normally all production stops after 10 days, normal light is restored at this time. Hens lay eggs 20 days after the moult begins. After 40 days of moulting, the hens reached 70% to 80% egg production rate. The combined mortality of hens during the moulting period is generally not more than 1%. Intermediate for CAS 170729-80-3 Aprepitant Intermediate,Aprepitant Api,Aprepitant Cas 30071-93-3,Trifluoromethyl Acetophenone Shandong Bolode Bio-technology Co., Ltd. , https://www.bldpharma.com