In the past few days, many places in Jiangsu Province have continued to have low temperature, rain, snow and freezing weather, which has brought great challenges to the majority of layer farmers. According to the forecast of the meteorological department, the temperature in most parts of the province will continue to fall in the next 10 days, in order to reduce the impact of cold wave weather on the production of laying hens, reduce the loss of farmers, and release the key points of management of continuous low temperature laying hens.
1) Do a good job of keeping the chicken coop warm.
The optimum egg laying temperature in the house is 18 23. In the case of low temperature, do a good job of heating the chicken coop to ensure the normal operation of the heating equipment. The doors and windows of the chicken coop should be closed, and the curtains should be hung to ensure the thermal insulation effect of the chicken coop, block the air leakage gaps and holes in the chicken coop, and strictly prevent the invasion of "thief wind".Particular attention should be paid to covering the fecal discharge port to prevent the formation of local low temperature zones.
2) Strengthen ventilation management.
In order to maintain the temperature in winter, the chicken coop is often tightly sealed, producing a large number of harmful gases such as hydrogen sulfide and ammonia, which induces chronic respiratory diseases, branches, throat and other diseases of chickens. And remove the manure in the chicken coop in time to ensure that the house is clean, the air is fresh, and the oxygen is sufficient.
Guide the regulation and control of the environmental control system of the chicken house.
3) Maintain adequate light.
Light plays a decisive role in the sexual maturity and ovulation of laying hens. In winter, the days are short and the nights are long, and the hours of sunlight are reduced, resulting in a decrease in egg production. After sunset, artificial lighting should be carried out in time, and attention should be paid to uniform illumination and appropriate intensityWhen the light is not sufficient in rainy and snowy weather, you can also turn on the lights to supplement the light during the day. Make sure that the light hours are stable at 16 hours per day in winter.
4) Strengthen the immune effect.
After rain and snow, it is often the high incidence period of the epidemic, so it is necessary to pay close attention, strengthen the monitoring of antibodies in the flock, and make up for the immunization in time according to the antibody level to ensure the immune effect and effectively prevent infectious bronchitis, avian influenza, chicken infectious rhinitis and other common diseases in winter. Special attention should be paid to the low outside temperature in winter, and the pre-vaccination pre-temperature is very important, so as to ensure that the vaccine warms up to 25;At the same time, the immunization time should be adjusted, and the immunization time should be extended to 5-6 hours in winter, and the vaccine with a greater stress response should be carried out in the afternoon.
On-site guidance on the prevention and control of winter disease in chickens.
5) Strengthen feeding management.
Winter hen feed consumption than other seasons increased by about 10%, the diet should be appropriately increased corn, oil and other energy feed, in order to improve the body of the laying hen itself cold ability;Timely supplement of multivitamins, electrolytes and other additives to reduce the stress response of chickens. In case of cold weather, each chicken needs to be added 20 g of feed every day, and every 3 times the temperature drops, 5g of feed needs to be added to improve the cold resistance of laying hens.
6) Pay attention to biosecurity.
Do a good job in biosafety management, especially focus on disinfection around and in the chicken house to prevent the invasion of bacteria, viruses, parasites, etc. Closed chicken houses still need to be disinfected with chickens once a week;Clean the drinking fountain in time to ensure that the water quality is goodVehicles, brooms, shovels, and other utensils used for cleaning manure should also be cleaned and disinfected regularly.
7) Do a good job in production security.
It is necessary to do a good job in the comprehensive overhaul of infrastructure such as water, electricity, roads and chicken coops, repair the damaged chicken coops in a timely manner to prevent collapse, and organize personnel to remove the snow on the roof of the house in time after the snow to prevent collapse. The exposed water pipe should be checked, and the water pipe should be bandaged with cotton and linen fabrics and plastic foam to prevent the water pipe from freezing and cracking and the inside of the water pipe from freezing, so as to avoid the waterway being blocked and causing the chickens to drink water to be interrupted.
8) Grasp the weather warning.
Farmers should use a variety of information to understand and grasp the weather warning forecast, market supply and demand, traffic and feed raw materials, adjust the time of chicken and slaughter, timely supplement feed raw materials and fuel, do a good job in egg marketing docking and planning, and scientifically arrange the production of laying hens.