The fireball hatching method is a traditional hatching method for poultry eggs in northern China. It can be used for both family and scale hatchery and is suitable for small-scale production of rural duck farmers. Egg disinfection Duck eggs are easily contaminated. Bacterial contamination is one of the causes of embryo death. Therefore, the contaminated duck eggs must be sterilized. The survival rate after hatching can be increased by about 20%. The disinfection method is as follows: Use 1% hydrogen chloride solution or iodine solution (iodine 5g, potassium iodide 8g, water 1000ml), soak the eggs for 10 minutes to 15 minutes, and after incubation, incubate. The solution temperature is 35°C-40. °C, soaked eggs can be preserved for 3 days to 5 days, and fumigation is based on 1 cubic meter with 40% formalin, 23 ml, potassium permanganate, 5 g. Place the egg tray full of eggs on the disinfecting rack, then cover the disinfecting rack with plastic film, then pour the formalin into the pot on the floor, pour potassium permanganate, and immediately seal it. The eggs can be hatched after removing the eggs within half an hour. Incubator and indoor equipment The equipment needed for hatching fireballs is relatively simple. The main equipment includes fireballs, beds, straw mats, quilts, and fences. The main fuels are coal fire, waste wood, and rice straw. Fire pits are required to be built from adobe, height 65 cm, width 200 cm, length depending on the condition of the house. A stove door is set at one end of the long axis of the fire, and a chimney is set at the other end. In order to facilitate the operation of turning eggs, 80 cm to 100 cm walkways are provided along both sides of the long axis of the fire, and both operate at the same time when turning the eggs. The thickness of the slushing mud is about 15 cm thick near the end of the stove door. The tip of the stalk is slightly thinner near the end of the chimney, which is 6 cm. Put 3 cm to 5 cm thick straw, wheat straw, or chaff on the surface, then cover the straw mat. Eggs are placed on a straw mat surrounded by fences and covered with quilts. The bed is the place where the eggs are kept after hatching. Spreading beds are generally made of bamboo and require strong and durable bedplates that are not easily deformed. In the fireball hatching, the spreader bed is often erected on top of a fire pit. According to the scale of production and the size of the house, it can be set between 1 and 2 floors. The distance between the two floors is convenient for operation. Spread the husks and mats on the stalls, then lay eggs and cover the quilts. Incubation process and management Flow production method is generally used, 6 days - 7 days / batch. According to the temperature requirements of the duck embryo in the incubation process, it can be divided into several steps: the first step is warm; the second step is to move into the temperature; the third step is to move into the upper booth; the fourth step is to move into the next stall and out of the cone; Keep at 27°C-30°C, keep 30°C-34°C when shelling out, and egg surface temperature 37.8°-38.6°C. Usually check the temperature once every 30 minutes. 1st - 7th day of incubation on enthusiasm, on the 8th - 14th days in the warm, on the 15th -21 days in the booth, the 22nd -28 days in the next stall. Burning the fire under the armpit warms the buckwheat noodles and keeps the quilts covered. Use quilts or temperature adjustments on the booth. During the hatching process of the duck eggs, egg weight is reduced due to evaporation of water in the eggs. It is better to lose about 13% of the weight of the eggs. The relative humidity can be measured with a wet and dry ball table. The indoor relative humidity during incubation is arranged as follows: Day 1 - 8 days 70%, Day 9 - 16 days 60% - 65%, Day 17 - 24 days 50% - 55%, Day 25 - Day 28 65% -70%. In this way, the initial relative humidity is high, which can avoid excessive evaporation of water in the egg. In the medium term, more moisture needs to be removed. Relative humidity is required to be low, and the humidity in the later period is increased, which facilitates hatching of the ducklings. From the 1st day of duck egg hatching until the hatchlings hatched, 1 day and night can be turned over 6 times - 8 times or more, depending on the circumstances to turn more appropriate. Turning the egg can change the position of the embryo, promote the movement of the embryo, heat evenly, and prevent the adhesion of the embryo to the eggshell. When it is found that the temperature is high and the temperature difference between the upper and lower layers, the center and the edge is large, the egg is immediately turned, the position is changed, and the temperature is adjusted. On the 26th day, the egg is erected to facilitate the ducklings to break the shell. Fire eggs hatching turn eggs by hand, must be careful to minimize the rate of damage. On the 5th, 13th, and 24th days of hatching, 1 egg was taken. Looking through the lights or sunlight, pick out lean and dead eggs. It is also possible to distinguish dead eggs from egg temperature and egg color. Hands feel cold or the eggs are black at the tip of the embryo is dead, can be readily handed out. The incubator should be ventilated and ventilated to ensure that the embryos often breathe fresh air and increase hatchability. The purpose is to help the embryo radiate heat and breathe fresh air. Duck eggs contain more fat, and the calories generated with the development of the embryo increase. If the temperature is improper, it will easily lead to death. Day 7 - 15 days, cool eggs 3 times - 5 times/day; 15 days - 20 days, 5 times - 7 times/day, 20 days - 27 days, 10 times/day. Each time from 15 minutes to 20 minutes, you can also cool eggs once every morning and evening to reduce the egg temperature to 32°C-34°C and return to normal temperature after about 1 hour. The water was sprayed from the 7th day of duck eggs hatching, sprayed 2 times -6 times a day, sprayed once every 2 hours on the 24th - 25th day, and sprayed once every hour on the 26th - 27th day, on the 7th day. -22 days, the spray was finely sprayed. From the 23rd to the 27th day, the spray appeared like droplets, and the water droplets were evenly sprayed on the egg surface. When the egg temperature is high, you cannot spray water immediately. The usual spray temperature is 40°C, and it is advisable to maintain the normal temperature after spraying. After egg surface moisture evaporates, it is covered again. Normal hatching begins on the 26th day and begins shelling, and ends on the 28th day. At this time, hairy ducklings and eggshells should be removed every 2 hours to 3 hours. Cooking Wine,Rice Cooking Wine,Onion Ginger Cooking Wine,Sour Cooking Wine Chinese Seasoning (Shandong) Trading Co.,Ltd , https://www.zt-trading.com