Because of the thick shell and tight stomatal seal, Yamagata eggs affect gas exchange, water evaporation, heat transfer, and hatching of oyster shells. Therefore, the hatching rate during hatching is low. To improve the hatchability of mountain eggs, Weiwan Town, Cao County, Shandong Province The pheasant breeding farmer Cai Shenghua, through years of exploration and research, mastered a complete set of mountain egg hatching techniques, thereby increasing the hatching rate. The introduction is as follows: 1. Egg selection: Eggs should meet the requirements of the breed, medium-sized eggs, and eggs. Normal shape, uniform shell thickness, consistent color, bright color, it is best to store in a short time, because the longer the storage time of eggs, the lower the hatching rate.
Second, disinfection: disinfection of eggs is very important, the disinfection of eggs than non-sterilized can significantly improve the hatching rate. Eggs are generally sterilized using formaldehyde gas fumigation. Each cubic meter of space uses 15 grams of potassium permanganate. The dose of 30 milligrams of famarin is fumigated at a temperature of 27°C to 30°C for 20 minutes to kill pathogenic microorganisms. In particular, the disinfecting effect of virus and mycoplasma is significant, and disinfection is generally performed in a sterilizing cabinet.
Third, the temperature: temperature is the primary condition for hatching, only at the appropriate temperature embryos can be normal material metabolism and growth, incubation temperature requirements are relatively stable, the range of changes allowed at 0.5 °C, incubation site requirements temperature Uniform, otherwise it is difficult to hatch good results. The incubation temperature was based on the embryonic development situation. The temperature was slightly higher in the early stage, slightly higher in the middle stage, slightly lower in the later stage, and a slightly higher Schwing method during the hatching stage. Temperatures are: Preheat eggs 6-8 hours before hatching, egg temperature is 36°C-38°C; 1-7 days, 38.8°C-39.2°C, 8-14 days, 38.5°C-38.8°C, 15-20 days , 38 °C ~ 38.5 °C, 21 ~ 24 days, 38.5 °C ~ 39 °C, so with temperature, embryonic development is normal, allantoic in 14 to 15 days in the small head to close, all the protein wrap, to ensure the embryo 20 ~ 21 days Make full use of the protein, so it can increase the hatching rate of mountain eggs.
IV. Humidity: Humidity is also an important condition for the incubation period of mountain eggs. If the humidity is insufficient, it will cause the embryo to stick to the shell. It is difficult to hatch or the weight of the hatched chicken is light. The scales on both feet of the chick are rough and dry, if the humidity is too high. Although hatched chicks are heavier, they have poor absorption of egg yolks, large abdomens, poor health, and death, resulting in a decrease in the survival rate. During the incubation period, the humidity of the mountain eggs is high at both ends, the middle level is good, the humidity is high in the early stage, and the eggs can be heated well and evenly, and the medium-term level is conducive to the metabolism of the embryos. In the later period of the hatching period, the humidity is increased to dissipate too much physiology. Heat, so that loose shell structure, easy to shell larvae, pre-humidity of 60% to 65%, in the middle of 55% to 60%, late 60% to 68%, 70% to 75% of the hatching period.
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? turn the egg : ? ? ? It has been proved that the eggs are turned once every 8 hours within 1 to 20 days, the turning angle is 180 degrees, the eggs are not turned during the 21 to 24 days of the hatching period, and only the eggs are adjusted to meet the embryonic and egg development requirements. The hatching effect is very satisfactory. .
?? 6, hanging eggs: in the late middle of incubation, the egg temperature up to 38.8 °C, the eggshell surface area is relatively small, small pores, heat slowly, this time the eggs can enhance the gas exchange embryos, eliminate the egg heat, hatching after 16 days, Eggs should be crushed once a day for 20 to 24 days, with more physiological heat. Eggs are to be crushed 2 times a day. Eggs can be stored for varying lengths of time. According to the situation, they can be controlled flexibly. When the temperature drops to 35 degrees, hatching continues.
7. Spraying: Spraying is one of the keys to improving the hatching rate. There are three points in the water spray. First, it destroys the upper membrane of the shell. Second, it promotes the contraction and expansion of the eggshell and the shell membrane respectively, destroys their integrity, increases the permeability, accelerates the evaporation of water and the normal weight loss of the egg, and makes the air chamber The volume becomes larger and the oxygen supply is sufficient, and the third is the crispness of the shell. The egg thickness on the shell of the mountain egg continues to hatch when the egg temperature drops to 35°C.
Hard shell, the former affect the evaporation of gas and water, the latter hinder the clam shell, the presence of the shell on the hatching head is beneficial for several days, with the growing embryonic age, especially when the bladder is closed, you need to inhale more When more oxygen is released and a large amount of metabolites are excreted, it begins to have an adverse effect on the development of the embryo. For this purpose, 21 to 24 days of embryonic eggs need to be sprayed with warm water of 31 °C to 38 °C (not too late nor too late. ) Spray once a day until it is dry and continue to hatch. Under the effect of repeated airing and spraying of water, the eggshell is hard and crisp, chicks are easy to break, and stillbirths during hatching are reduced.
Second, disinfection: disinfection of eggs is very important, the disinfection of eggs than non-sterilized can significantly improve the hatching rate. Eggs are generally sterilized using formaldehyde gas fumigation. Each cubic meter of space uses 15 grams of potassium permanganate. The dose of 30 milligrams of famarin is fumigated at a temperature of 27°C to 30°C for 20 minutes to kill pathogenic microorganisms. In particular, the disinfecting effect of virus and mycoplasma is significant, and disinfection is generally performed in a sterilizing cabinet.
Third, the temperature: temperature is the primary condition for hatching, only at the appropriate temperature embryos can be normal material metabolism and growth, incubation temperature requirements are relatively stable, the range of changes allowed at 0.5 °C, incubation site requirements temperature Uniform, otherwise it is difficult to hatch good results. The incubation temperature was based on the embryonic development situation. The temperature was slightly higher in the early stage, slightly higher in the middle stage, slightly lower in the later stage, and a slightly higher Schwing method during the hatching stage. Temperatures are: Preheat eggs 6-8 hours before hatching, egg temperature is 36°C-38°C; 1-7 days, 38.8°C-39.2°C, 8-14 days, 38.5°C-38.8°C, 15-20 days , 38 °C ~ 38.5 °C, 21 ~ 24 days, 38.5 °C ~ 39 °C, so with temperature, embryonic development is normal, allantoic in 14 to 15 days in the small head to close, all the protein wrap, to ensure the embryo 20 ~ 21 days Make full use of the protein, so it can increase the hatching rate of mountain eggs.
IV. Humidity: Humidity is also an important condition for the incubation period of mountain eggs. If the humidity is insufficient, it will cause the embryo to stick to the shell. It is difficult to hatch or the weight of the hatched chicken is light. The scales on both feet of the chick are rough and dry, if the humidity is too high. Although hatched chicks are heavier, they have poor absorption of egg yolks, large abdomens, poor health, and death, resulting in a decrease in the survival rate. During the incubation period, the humidity of the mountain eggs is high at both ends, the middle level is good, the humidity is high in the early stage, and the eggs can be heated well and evenly, and the medium-term level is conducive to the metabolism of the embryos. In the later period of the hatching period, the humidity is increased to dissipate too much physiology. Heat, so that loose shell structure, easy to shell larvae, pre-humidity of 60% to 65%, in the middle of 55% to 60%, late 60% to 68%, 70% to 75% of the hatching period.
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? turn the egg : ? ? ? It has been proved that the eggs are turned once every 8 hours within 1 to 20 days, the turning angle is 180 degrees, the eggs are not turned during the 21 to 24 days of the hatching period, and only the eggs are adjusted to meet the embryonic and egg development requirements. The hatching effect is very satisfactory. .
?? 6, hanging eggs: in the late middle of incubation, the egg temperature up to 38.8 °C, the eggshell surface area is relatively small, small pores, heat slowly, this time the eggs can enhance the gas exchange embryos, eliminate the egg heat, hatching after 16 days, Eggs should be crushed once a day for 20 to 24 days, with more physiological heat. Eggs are to be crushed 2 times a day. Eggs can be stored for varying lengths of time. According to the situation, they can be controlled flexibly. When the temperature drops to 35 degrees, hatching continues.
7. Spraying: Spraying is one of the keys to improving the hatching rate. There are three points in the water spray. First, it destroys the upper membrane of the shell. Second, it promotes the contraction and expansion of the eggshell and the shell membrane respectively, destroys their integrity, increases the permeability, accelerates the evaporation of water and the normal weight loss of the egg, and makes the air chamber The volume becomes larger and the oxygen supply is sufficient, and the third is the crispness of the shell. The egg thickness on the shell of the mountain egg continues to hatch when the egg temperature drops to 35°C.
Hard shell, the former affect the evaporation of gas and water, the latter hinder the clam shell, the presence of the shell on the hatching head is beneficial for several days, with the growing embryonic age, especially when the bladder is closed, you need to inhale more When more oxygen is released and a large amount of metabolites are excreted, it begins to have an adverse effect on the development of the embryo. For this purpose, 21 to 24 days of embryonic eggs need to be sprayed with warm water of 31 °C to 38 °C (not too late nor too late. ) Spray once a day until it is dry and continue to hatch. Under the effect of repeated airing and spraying of water, the eggshell is hard and crisp, chicks are easy to break, and stillbirths during hatching are reduced.
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