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Egg hunger method forced moulting technique
In natural conditions, laying hens produce moults and produce after a year or so of production. Natural moulting is usually about 4 months, long time and the chickens are not neat, the egg production rate is low, and the egg shell quality is also inconsistent, which greatly restricts the economic benefits of the chicken industry. In order to shorten the moulting time and extend the chicken's production and service life, the chickens are often forced to moult. Artificial forced moulting has the advantages of shorter time compared with natural moulting, more regular laying of eggs after moulting, increased egg weight, improved egg quality, and reduced egg breaking rate. There are many methods of manual forced moulting, but it has been proved that forced moulting by the hunger method can effectively use the second laying cycle of high-yielding chickens, reducing egg production costs and achieving higher economic benefits. However, some farmers cannot master their technical points, resulting in the failure of compulsory moulting of chickens, which in turn leads to serious economic losses. In recent years, we have summarized some technical points of mandatory moulting for egg hunger and are only for your reference. First, determine the appropriate season and time of moulting. When a batch of chickens enters the mandatory moulting stage, it is mainly determined based on economic factors, chicken status, and climatic conditions. Forced moulting during hot and cold seasons can affect the moulting effect. In general, according to market needs, to avoid cold and hot summer seasons, selective forced moulting is applied to laying hens aged 62 to 72 weeks. 2. The selection and rectification of chickens is the key to affecting the rate of egg production after moulting, and it is also the main factor in reducing the mortality rate of chickens in the moulting process in order to ensure the ideal moulting effect. The first choice is the chicken with the highest egg production rate in the first year; the second is to eliminate chickens in the flock, eliminate disease, weak, debilitated, over-fat, over-lean, and weak-spirited chickens. Chickens that have been naturally exchanged for feathers and chickens that are weak are removed so that the overall mental state of the flock is good. Therefore, healthy chickens weighing 1500 to 1700 grams are generally selected as moulting objects, but the weight uniformity of the same variety is required to be at least 85%. III. Disease Prevention In the process of forced moulting, the flock has experienced weak water resistance after stopping water supply. Once infected, it will cause a large number of deaths and suffer huge economic losses. The chicken Newcastle disease system seedlings are usually injected one week before moulting, and the house and the surrounding environment are sterilized. Outsiders are prohibited from entering, and the staff must also be strictly disinfected. And prepare the feed and biological medicine needed for moulting. Fourth, do a good job of environmental control 1. The temperature is generally controlled at 15 ~ 25 °C, pay attention to cold in winter to keep warm, to avoid the ambient temperature is too low, the weight of the chicken dropped too fast, resulting in the second egg production cycle performance is low, etc.; summer should pay attention Prevent heatstroke and cool down, to avoid the death of chickens due to heat stress. 2. Humidity The general relative humidity is controlled at 65% to 70% to avoid the phenomenon of excessive humidity when the temperature is high. This will cause the chicken's body heat to be blocked, resulting in the death of the chicken. 3. Light At the beginning of forced moulting, use natural light (8 hours a day), cover the windows properly in the summer, increase lighting from the 16th day, add 30 minutes each day, until the light 14 hours. 4. Keep the environment poultry house clean, lime on the manure, clean the manure once a day, and control the content of ammonia and carbon dioxide in the air. 5. Grasp the feeding and management during moulting. Determine the appropriate time for stopping the material and stopping the water. Normally, stop the water for 3 days (2 days in the summer) and stop for 12 days. Of course, the length of time during which the water is stopped and stopped should be determined flexibly according to the climate at that time, the health status of the chickens, and the degree of mortality and weight loss of the birds. In general, the mortality rate of chickens is controlled at about 3%. When most chickens lose about 27% of body weight, they begin to resume feeding. On the first day of refeeding, 20 grams of young chicken feed was given; 40 grams/day on the second day; 60/day on the 3rd day; 80 grams/day of egg production on the 4th day; 100 grams on the 5th day / Only; Day 6 Free to eat. After the start of feeding, the chickens will not be discontinued immediately, often with soft-shelled eggs or shelled eggs, shell powder should be added in the trough, and 2 kg of shell powder should be added for every 100 chickens to prevent the flat-raised chickens from feeding when they are hungry. Grass, sand, feathers and other things. At the same time, there must be enough eating surfaces to ensure that all chickens can only eat feed at the same time.