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Duck forcing moulting technology
First, grasp the timing of moulting. The forced execution of moulting for ducks and ducks must be at a suitable time. It should normally be done 12 months after the egg is laid. It is best to start when the ducklings have an egg production rate of 60%. At this time, the ducks were of good quality and had low mortality during the period of molting, and the peak of the next egg production came earlier. The time for plucking feathers is generally determined by the degeneration of pigments in ducks, quails, etc. For example, Shao Shao ducks are changed from feeding and management to environmental conditions and their body weight is reduced. This causes the pupa and pupa to change from orange to pale yellow until they are pale and white. This shows that artificial pullouts can be performed within 3 to 4 days. Second, the mandatory moulting method. Generally divided into stop production, pullout and recovery of three steps. The first two days of compulsory moulting are usually stopped during the production stoppage period. Half of the material is cut, and it is changed from feeding 4 times a day to 2 times a day. At the same time, the lighting is stopped at night, and no new litter or grazing is provided. The third and fourth days are for green feed and water only. Then only drinking water for two days. After the week, only the green material and a small amount of coarse material were fed. After this mutation, the body fat of the duck was exhausted and the body weight dropped sharply. Normally, the main wing feathers are pulled first, gradually pulling out from inside to outside, pulling out aileron feathers, and then pulling out the main tail feathers. If the test is not too strenuous and the tip of the hair root does not contain traces of blood flesh, the feathers should be pulled out as soon as possible. Immediately after plucking, it returned to normal feeding levels. After 2 to 3 weeks, new feathers are generally raised and they can go on a pastoral tour to strengthen their activities, increase their appetite, and promote their early recovery. Third, moulting notes. Clean the pens during the moulting period to prevent ducks from dying due to hunger. When the feeding is resumed, enough feeding troughs should be arranged and the feed amount should be gradually increased. Otherwise, stagnation can easily occur.