1 temperature off
Temperature is the key factor affecting the success or failure of winter brooding, especially to ensure the stability of the temperature, to provide suitable temperature for chicks can effectively improve the survival rate and accelerate the growth and development, so the first winter brooding must ensure that the heating facilities are in place. In large-scale breeding farms, it is best to use centralized boiler heating. For households, we must also design a heating system. We must test the temperature in advance a few days before we enter the chicks to ensure that we can reach the required temperature for brooding (heating stoves in brooding houses should be prevented. gas poisoning).
The temperature for the first three days of the brooding is generally 37°C, followed by 35°C for the next three days, and thereafter 2°C per week until reaching 21°C. In the general stratification, a transition period of 2-3 days is maintained on the day so that the flock can better adapt to the new environment and it can be 0.5-1°C higher during the night than in the daytime. In the case of ensuring the above points, at the same time to inspect the flock, the mental state and feed intake of the flock is also one of the criteria for measuring the suitability of the temperature. If the temperature is appropriate, the chicks appear lively, have a strong appetite, and are evenly distributed in the cage. When the temperature is too high, the feed intake of the chicks decreases, and drinking water increases. They show breathing in the mouth and the wings spread apart; the temperature is too low, the chicks crush each other, the neck shrinks, and the appetite subsides (see Figure 1). Therefore, it is necessary to adjust flexibly according to the actual situation of the chicken.
2 humidity off
Due to the air drying in winter, the temperature of the brooding house is high, which often causes the relative humidity in the brooding house to be low. If the humidity is too low, the water in the chick body will be dissipated, the fluff will dry out, the appetite will decrease, the chicks will be dehydrated, the armpits will appear, and the anal phenomenon will occur. At the same time, too low humidity can cause cracks in the younger respiratory tract mucosa of the chicks, resulting in the loss of the barrier against disease, and inducing the occurrence of Newcastle disease, transmission, and throat transmission. When the humidity is too high, the body surface is difficult to dissipate, the appetite is weak, and the yolk absorbs slowly and is susceptible to disease. Therefore, a dry and wet thermometer should be hung in the house, and the relative humidity should be kept within 55-65% of the first ten days. Ten days later, due to the increase of breathing and defecation, it is easy to wet, and 40-55% is appropriate. The proper humidity makes the chicks's toes moist and delicate. The control of the humidity in the house can be achieved through disinfection. If the required humidity is not reached, the humidity in the house can be increased by ground watering.
3 Ventilation clearance
In winter, brooding often leads to poor ventilation due to thermal insulation, and the concentration of harmful gases in the house is too high, causing respiratory diseases. Therefore, the relationship between temperature and ventilation must be handled. The first week of brooding is based on the guarantee of temperature, and it is possible to conduct regular ventilation several times a day. After one week, with the increase of the respiratory rate and the increase of fecal matter, the ventilation volume must be increased. The fan house must ensure the fan. Be able to start regularly (stop about 10 minutes, turn 3-5 minutes), there is no fan of the chicken house, open a certain number of windows during the day.
In order to keep the temperature stable after ventilation in order to maintain ventilation, boiler heating to increase the temperature of the boiler, the heating furnace to increase the temperature inside the house 1-2 degrees, the size, direction, number of ventilation inlet opening should be based on the fan Change the number of openings, and at the same time, in order to prevent thieves from getting windy, you can add baffles at the air inlet and adjust the height at any time. When the temperature is high at noon, the ventilation volume can be increased. When the chicks are infected with laryngitis, the stress of the laryngitis reaction is reduced. , reduce complications, should increase ventilation.
4 Feeding clearance
After the chicks enter the house, they need to gradually warm up. After drinking water, start eating. The chicks should be pre-warmed to 25°C before drinking. Use a vacuum drinker to drink water in the first 3-4 days. Add 5% glucose and 0.1% chlorothalonil to the water. 0.1% multidimensional to provide nutrition and enhance resistance. After 4 days, the drinking water pipe is used. Generally, the height of the water pipe is slightly higher than the top of the head.
After the chicks have started drinking for 2-3 hours, they can begin feeding. When the food is eaten, the ingredients can be sprinkled evenly on the feeding tray (without the feeding tray, newspapers or pads can be used), and the feeding trays should be cleaned (or replaced). Newspaper or pad paper) to reduce the spread of the disease. Generally, after 10 days, the material is converted into pellets for chicks, and attention is paid to the gradual transition when the number is changed. When adding feeds, feed less frequently, add no more than one-third of the food troughs at a time, and do a good job of grounding and grounding.
5 Health and Disease Prevention
The chicken's own immune function is not perfect, and the ability to resist external diseases is relatively poor. In particular, respiratory diseases in winter are prone to occur. Therefore, in addition to keeping the isolation of the enclosure, minimize the contact with the outside world, and at the same time, On the basis of immunization, we must increase the sanitation of the home environment, reduce dust, clean up the excrement in time, reduce the emission of harmful gases, and do a good job of disinfection every day to reduce the occurrence of respiratory diseases. The staff also need to observe chickens every day. Group, find problems and take timely measures to eliminate the problem in the bud.
In short, the winter brooding is more difficult to be affected by seasonal factors, but as long as we grasp the above key points, we can ensure the healthy growth of the chicks, and play a better performance after being basketed.
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