How to improve the uniformity of egg breeders

How to improve the uniformity of egg breeders

The economic benefit of egg breeders is achieved through the breeding and hatching of breeder eggs, and higher uniformity is a necessary condition for high yields. Uniformity includes body shape uniformity, body weight uniformity, and sexual maturity uniformity. Body shape uniformity is basically established in early brooding, and it will determine the weight uniformity; body weight uniformity can be improved by grouping, addition and subtraction of feed, which determines the consistency of sexual maturity, ie sexual maturity uniformity; sexual maturity uniformity Directly affecting the level of breeder production, in order to make egg breeders have better uniformity, the following work needs to be done. 1 After picking up the chicks and warming up the chicks, do a good job of drinking water. At the same time, pay special attention to the brooding temperature. The starting temperature of the warming umbrella is preferably 31°C, because the temperature in the brooding process is more important than other environmental indicators. The temperature determines the speed of the absorption of the residual yolk in the abdominal cavity and determines the constitution of the chicken. The principle of temperature is the temperature drop of 2~3°C per week, but it cannot be performed mechanically. As long as the birds are evenly distributed, there is no abnormal sound. The temperature at this time is optimum. Of course, the night temperature can be increased by some. The author believes that the use of temperature brooding can improve the chick's physique. The so-called temperature-difference brooding is a temperature difference of 2~3°C at the same place or at different locations at the same time of the day, allowing chickens to freely select suitable resting places for individual activities according to individual differences, and stimulating chickens' sensitivity to temperature. Adapt to the hot and cold environment during feeding. 2 The purpose of timely cutting off and cutting off meat is to reduce feed wastage and deterrence. When the same batch of chicken is broken, it is necessary to fix a technician with practical experience to complete the operation, so as to break the consistency of the cockroach. The remaining part of the nose after separation was about 2mm before the separation of the nostrils. After a long period of several weeks, the new cockroaches re-emerged, which was too short to affect feeding. The temperature of the blade is controlled at about 650°C. Insufficiently low hemostasis, too much stress, and easy to cause meatballs grows in front of the ankle. When broken, the broken device depends on the size of the body of the bird, and is generally between 3 and 5 days of age. The broken device should be directly in front of the right arm and the height should be placed naturally in the right arm. The right forearm is placed on the operating platform, the right hand holds the chicken, the right thumb is placed behind the chicken brain, and the index finger and middle finger are placed. Under the axilla, the index finger lifts the tongue and the thumb pushes forward to place the jaw in the appropriate hole. After the blade is cut down, it will be changed after 2 seconds. Vitamin K and multivitamins were added to the feed 2 days before the break, and used for 3 days to strengthen the hemostasis and reduce the stress; some dry powder was given after the break to promote wound healing. 3 Timely grouping is a very effective measure to improve uniformity. The number of groupings is usually about 4 times. Too many times is not only a waste of labor and stress, but also has no effect on grouping, because it takes 4 weeks for the feed to be converted into body tissues in the body, which means that there is no interval between groups. The previous grouping was basically invalid at 4 weeks. The first grouping should be as early as possible. As we all know, the formation of chicken skeletons was generally 6 weeks ago, and it was futile to increase the body evenness after the formation of skeletons. When broken, try to divide the chicks into two groups as much as possible by looking at the size of the hand. The chicken group will extend the material of the brooding material appropriately, increase its skeleton, and then group the chicks for the first time. The increase in body weight after grouping should not be rushed. It takes 3 to 4 weeks to complete. The last grouping should be completed after the last 18 to 20 days, otherwise there is no real value after the sexual maturity is formed because the stress is too great. 4 Timely group transfer and group transfer is an auxiliary measure for grouping. After the grouping, some chickens grow faster than the average chickens. They can be transferred to the appropriate groups by timely group adjustment. Don't try to chase a chicken when you transfer the group. You should use a hook to hook the chicken leg when the chicken feeds. When the hooks move lightly, the other chickens will not notice. If the chicken work is done well, the number of grouping will be reduced accordingly. . 5 The mode of limited feed restriction and feeding also indirectly affects the flock uniformity. There are daily limit method, every other day method, six one method, fifty two method and four three method. The material can make all the chickens feed on average, but the next day method makes the increase in the amount of material is not very smooth, so the four-three method is the most scientific in terms of control uniformity. 6 The purpose of scientific immune immunization is to prevent the occurrence of viral diseases. Once the immunization fails, an outbreak will occur and death will occur. The light will affect feed intake, digestion, and absorption and utilization of nutrients, resulting in large differences in body weight. Group uniformity. Scientific immunization includes the scientificity of the establishment of immunization programs and the science of immunization operations. The former involves the prevalence of the epidemic in each area of ​​chickens, the situation of the epidemic in the field, the selection of vaccine strains, and two or two kinds of pre- and post-consistencies. The situation of the above vaccines, etc., so a chicken farm should carefully control the immunization program, can not blindly copy other sites and vaccine manufacturers recommended immunization procedures. Other fields have their own characteristics, and the manufacturer's recommended procedure has its commercial purpose. The introduction of the strain is very simple, but it is very difficult to eliminate it. Once it is used, it will be used in the future. If it stops, it will outbreak the disease, so it must have occurred for a new vaccine. Introduced in the case of illness. In addition, drinking water immunization when the water does not contain disinfectants, should pay attention to the length of time before the immunization water control, drinking fountains are sufficient, can not use iron; vaccine bottle to be buried; eye drops to allow the chicken to fully absorb and then release; injection The dose should be sufficient.

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