Cold winds raging at the beginning of autumn and winter
Cai Zhe: I am a rural chicken farmer in northeast China. The autumn in the north is short and the winter is long. The temperature dropped in recent days, and according to previous years' experience, it was necessary to start preparing for the winter. The north is cold. I hope you can introduce some poultry wintering expertise to prepare for it in advance. thank you very much!
Dr. Breeding: In the late autumn and early winter, the humidity in the northern region has been greatly reduced, the temperature has gradually decreased, and the north wind often blows up. At this time, the feeding and management of chickens entered a critical period. The chicken farm should do a good job of health care for the chickens in the following aspects.
Prepare for wintering in advance
Before the winter comes, conduct a comprehensive inspection and maintenance of the chicken house, block the wall cracks, replace the door and window glass, prepare for the film and straw curtain used in winter, semi-open chicken house should promptly remove the pergola, and well package the plastic film. Bracket. At the same time, the preparation and installation of heating facilities must also be well done. In particular, chicken farms that use coal-fired boilers for heating and using fire broilers must pay attention to the inspection of flue pipes and chimneys, and should be plugged and replaced as soon as possible when leaks or leaks are discovered. Or make a change. Large-scale chicken farms also need to use common antibacterial drugs and disinfectants, and purchase the necessary green and blue Succulent feed.
Adjust diet formula
There is a large temperature difference between day and night in winter, and the consumption of chicken body at night is relatively high. It is generally possible to increase the energy level of chicken feed by 5%-10% of normal standards. In addition to increasing the proportion of energy feeds, it is also possible to add 1-2% of animal fats to the feed. If conditions permit, brown sugar can also be added to layer water.
After a long period of egg production and hot summer tests, laying hens in winter are physically exhausted and their physique is reduced. At this time, more animal protein feeds should be fed to ensure that chickens that have not yet been moulted continue to lay eggs, and that chickens that have been moulted grow quickly. Feathers, restore egg production as soon as possible. Adding vitamin C to the chicken diet, adding 200 milligrams per kilogram diet, or adding baking soda, with 0.1% to 0.15% of the feed, can not only increase the chicken's egg production rate, but also increase the thickness of the eggshell, preventing Economic damage caused by broken shells. For vitamin supplements, appropriate amounts of carrots or green radishes should be added to the feed. The radish can be chopped and mixed in the feed immediately before use.
Reasonably adjust the group
Timely elimination of low-yield chickens in old chickens and thin chickens in new chickens. The hens that had already been moulted should be separated to form a new group, focusing on the hens with the bright red crown, large pubic bone spacing, loose and loose anus, and soft and elastic abdomen. However, when raising groups of chickens in the process of group adjustment, the introduction of new chickens will destroy the original stable pattern, and often fight, so when adjusting the flock to control the number of groups, generally 100-200 is appropriate, after the group also It is necessary to observe carefully and stop the fight in a timely manner. For the hens who have a strong fight and the hens that have been injured, they should be kept in captivity alone.
Pay attention to supplemental lighting
In order to maintain the normal egg production curve of laying hens, the laying hens should be properly supplemented with light. Turn on the lights 2 times a day. Turn on the lights from 4:00-5:00 in the morning for the first time. Turn off the lights after dawn. Turn on the lights the second time in the dark and follow until 8:00-9:00 in the evening. Turn off the lights, when the rain and snow weather is insufficient, turn on the lights during the day to supplement the light, and ensure that the lighting time of the layer of chickens is stable at 16 hours every day.
Pay attention to daily management
Pay attention to watching and listening to the weather forecast. Before the advent of strong winds and cold currents, be sure to do a good job of keeping warm and cold. Chicken nerves are very sensitive, and they are prone to adverse stress reactions to external stimuli. In winter, nerves are more sensitive and fragile, with slight stress, which will seriously affect productivity. Therefore, in addition to the regulation of the small environment of the chicken house, the daily management of feeding, water feeding, picking eggs, and sanitation should be performed as slowly as possible so as to prevent the occurrence of adverse stress reactions that may lead to the suspension of production or induced diseases. For broiler chickens reared outside the home, chickens should be rushed into the house at night when the temperature is low. In order to promote the feeding of layer chickens, feeds can be added at night, and the chickens in the chicken group can eat the feed before turning off the lights. Feed replacement requires a 2-3 week transitional adaptation period to prevent sudden changes in the stress response.
Do a good job of disinfection
Autumn and winter seasons are the epidemic seasons of infectious diseases in the respiratory system. Therefore, environmental disinfection, utensils disinfection, and drinking water disinfection are also very important. The closed chicken house is still required to be air sterilized once a week with 0.5% strong disinfecting spirit spray. The external environment can be disinfected with 10%-20% lime water paint, or sprayed with 3%-4% caustic soda. The trays, buckets, buckets, drinking fountains and other utensils in the chicken house can be sterilized with 0.01% bacterin or 100% poison or 0.05% strong disinfection solution. Vehicles, brooms, shovels, and other equipment used to clean feces should also be regularly cleaned and disinfected.
Prevent gas poisoning
In autumn and winter, it is also necessary to strengthen the cleaning of the house. If fecal matter and damp litter are not removed promptly, ammonia or other harmful gases may accumulate, causing poisoning or other diseases. For broilers that grow faster, ascites syndrome is more likely to be caused. Therefore, when raising broilers in autumn and winter, care should be taken to use fresh, dry, soft, mildew-free, absorbent, and better-used shavings. Always flip the padding to prevent it from becoming hard and hard. Padding should have a certain thickness, generally more than 5 cm. In normal operation, it is necessary to minimize watering, and to prevent the sink from leaking and wetting the litter. In addition, ammonia absorption and deodorizer can be used to reduce the ammonia concentration of the house. Commonly used are ferrous sulfate, superphosphoric acid, copper sulfate and hydrated lime.
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