The difference between the South and the North in the winter feeding and management of pigs is that the temperature is not low in the north, but the humidity is relatively high. Therefore, we must pay attention to the impact of this aspect.
To strengthen the pigs' cold and warmth
Temperature is an important environmental factor that affects pig growth. The suitable temperature range for pig growth is 15°C~22°C. If the temperature is too high or too low, it will affect the pig's growth and development, and reduce feed remuneration. In winter, the climate is humid and the temperature is low. The average temperature in the three months of winter is 4.7°C, which is far lower than the suitable temperature required by the pig house, which seriously affects the growth rate of pigs and the economic benefit of farmers. How to manage pigs well in winter and reduce the impact of low-temperature environment on pigs become issues that must be paid attention to.
Due to the cold weather in winter, pigs consume a lot of calories, weight gain slows down, feed utilization is low, and poor management, sick pigs and frozen pigs occur from time to time because of poor management. In order to improve the economic benefits of breeding pigs in winter, it is necessary to feed them carefully, and it is very important to take measures to prevent cold and keep warm.
It is necessary to strengthen the inspection and maintenance of pig house doors and windows, replace broken glass, fill gaps in the leakage of leaks in the joints, ensure the integrity of pig house doors and windows, and prevent cold wind from invading. At the same time, we need to strengthen the maintenance and management of related facilities such as power supply, water supply and insulation. And so on, the important thing to do is to provide a reasonable temperature environment in the pig house.
Strengthen feeding management
Appropriate increase in nutritional intake of pigs, improve cold resistance. On the one hand, feed formulations can be adjusted, and corn or vegetable oils can be appropriately increased in the feed, with dosages of 10% to 15% and 2% to 3%, respectively. In addition to this, complex vitamins, amino acids, and complex enzyme preparations are added. In winter, what needs to be done is to appropriately increase the number of feedings, mainly because of the short and long nights. The direct consequence of this is the long fasting time at night. At this time, it is necessary to increase the night feeding, and it is also possible to increase the daily intake. On the other hand, the number of feedings should be appropriately increased. Where conditions permit, free intake can be taken. Feed dry powder or warm water mix and provide clean warm water for pigs to drink freely.
Ventilation. In order to reduce the occurrence of ammonia poisoning and respiratory diseases, it is necessary to provide timely and reasonable ventilation and ventilation for the pig house. For example, in good weather with no wind and good sunshine, the timing of ventilation can also be chosen from 12 noon to 14 noon. The management of suckling piglets should be strengthened. Colostrum should provide sufficient piglets, and at the same time provide enough food for suckling pigs, which can greatly promote the growth and development of piglets. Because of the improved feeding and management, the pig's constitution and related cold and disease resistance have also been enhanced.
Increase stocking density. In the rearing density level, it should be increased appropriately. Compared with the hot weather in summer, in winter, the number of breeding heads in the house can be increased by about 30% on the basis of the original, so that not only the temperature between the pigs can be used for heating, but also the temperature can be increased. The right time for gregariousness is in darkness. The specific approach is to use a small amount of wine or odor to Suer spray, but during this period, the breeder should pay more attention to the situation of the herd and prevent the pigs from having a fight.
Strengthen vaccination and major epidemic prevention work
Conditions in and around the winter barn are very harsh, making it more prone to diseases, especially respiratory infections. Therefore, when the winter comes, we must do a good job in the prevention and cure of major diseases such as swine fever and foot-and-mouth disease. It is best to monitor the level of immune antibodies in pigs, and to find and block loopholes in the prevention work in time so that pigs can Keep a good immune status.
Drug care. 1. Do a good job of pig deworming. Breeding pigs, nursery pigs and pigs can be fed with an "ivermectin" premix for 5 days to 7 days, 7 days after stopping, and then fed with "levamisole" once (7.5 mg/kg body weight). Sows are prohibited from using levamisole for deworming during lactation. 2. Drug health. Winter is a season of high incidence of respiratory diseases. It should be based on the immunization of vaccines. It should be used for health care. Drugs can be added once or twice a month. The scheme is as follows:
Option One: Add 20% tilmicosin 500 g + doxycycline 250 g per ton of feed and feed continuously for 5 days to 7 days. After the drug was added to the feed, “Weiwei'an†was added in an amount of 500 grams per ton, and fed continuously for 15 days. The intestinal microflora was adjusted, the resistance of the pig itself was strengthened, and the drug cost was reduced.
Option 2: Adding 80% of the original net of 80% of the original diet to 300 grams of chlortetracycline per ton of feed, feeding continuously for 5 days to 7 days.
Gastrointestinal diseases focus on the prevention of diarrhea in weaned piglets. In the nursery stock, "Vivienne" was added at a dosage of 1000 grams per ton until the end of the nursery period.
The active ingredients in “Vivienne,†Enterococcus faecium and Bacillus subtilis, have strong ability to secrete organic acids and various digestive enzymes, which can effectively inhibit the harmful bacteria such as Escherichia coli and Salmonella, and at the same time can improve the body of animals. Digestive utilization of feed.
Prevention of mycotoxins is a season in which farmers often ignore mycotoxins during autumn and winter. Some toxins, such as vomiting toxins, have a higher incidence in winter than in other seasons. The amount of 500 grams per ton added to "toxamine" can effectively prevent various mycotoxin hazards.
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