The hot season is a severe test for the aquaculture industry. The hot weather, the humid environment, the unstable temperature of the day and night, the mosquitoes that fly around, the ubiquitous molds and pathogenic microorganisms, these environmental factors have huge impact on the aquaculture production. Impact.
First of all, the impact of the weather on the sow's production has caused the occurrence of heat stroke in the laboring sows at the bed. The high temperature stress coupled with the special physiological period of the sow causes the body's body temperature regulation dysfunction and the occurrence of heat stroke. Therefore, how to reduce heat stress during the hot season has become the focus of sow management. The main measures include four aspects: First, increase the cooling time, ventilation equipment (such as coolers, wet curtains, constant temperature air conditioning, watering equipment, etc.) running time and Intensity, especially in the midday and sweltering period, increase the use of equipment; second, adjust the feeding and management methods according to the characteristics of the pig's physiological life, and the feeding time should be adjusted. Feeding should be around 6 o'clock in the morning and 11 o'clock in the early afternoon. Hello, it is suitable after seven o'clock in the evening, avoiding the high temperature of noon and afternoon to allow them to eat in the most comfortable environment; third is to increase the use of anti-heat stress additives and the frequency of use, such as Zhongwei Gainengxing In the hot season, long-term addition; Fourth, reasonable regulation of the feed structure of pig feed, in the hot summer should increase the proportion of green and juicy feed, by adding crude fiber diet can speed up intestinal peristalsis, thereby reducing the appearance of constipation.
Secondly, the reason why pigs are not well managed in the summer is not only related to external environmental factors such as temperature, but also inseparable from the following two factors: First, the pressure from outside pathogens increases, and each organism has its own evolutionary process. From large to small, even micro-invisible bacteria and viruses have their own characteristics and laws of growth and development. Routine experience in pig management and clinical practice tells us that pig virus disease has high incidence in winter, and bacterial disease has high incidence in summer; The high temperature and humidity in summer, the breeding of various mosquitoes, and the rapid rate of reproduction of bacteria, which greatly increase the number of diseases in the pig-centered environment, make the sows in the delivery room more vulnerable to disease infections, especially the chain. The cocci and Escherichia coli increase the incidence of obstetric diseases in sows and also cause the diarrhea rate in the delivery room to increase, and the survival rate decreases. Second, the pressure from the sow’s own physiological period and changes in the characteristics of the sows increases, in the delivery room. In special places, it is not easy to manage the sows. Before the childbirth, the sows start to milk, and the breasts are full of milk, which is easy to be in a high temperature environment. Metamorphism, at this time the sow through the respiratory heat, can easily lead to changes in the blood circulation system, changes in blood flow distribution, resulting in varying degrees of decline in the body's various functions, while the sow in the living environment, such as lack of exercise and other factors Causes the sow to have a slow blood flow and milk that can easily degenerate, thereby inducing mastitis, deteriorating the milk, causing direct mastitis and diarrhea in the piglet; also, due to the hot weather, the sow’s constitution can be significantly reduced, and the production process can be prolonged during production. All of these factors can cause illness, and these factors also directly affect the time for sow postpartum physical recovery and estrus mating. In sows that conceive in hot season, when they are in production, they often have low birth rate, frequent regrowth, and prolonged estrus intervals. In order to manage the sow herd, especially the sow in the delivery room can restore the constitution at the fastest speed, the following measures can be taken: strengthen environmental disinfection, reduce the number of pathogenic microorganisms in the environment, and clean the sow's body surface before birth And disinfection (especially when the sow enters the delivery room, do a good job of cleaning and disinfection of the body surface), reduce the introduction of harmful substances, and clean and disinfect the sow's breast during labor; in the sow production, the injection of Longmi first prevents the breast Inflammation and obstetric inflammation occur; before and after sow production, before and after weaning piglets, some anti-inflammatory drugs are added. Zhongwei Yinqiaosan/Yabo+Mowexin is used continuously for 5 days to 7 days.
Another important link is the breeding and management of boars. First of all, to ensure adequate nutrition, hot weather, boar feed intake will continue to decline, you can add Zhongwei gather stars, juicy green feed, but more importantly every day boars need to exercise (time to exercise Choose to do it in the morning or evening when the weather is cool) to improve the quality of the semen's semen and its useful life. In order to better maintain the reproduction ability of boars, improve their fitness and maintain their health, Zhongwei Yinqiaosan/Yabo+Mowexin is used continuously for 5 days to 7 days per month.
In the hot season, the main job of production management is to reduce the air temperature and maintain the normal production of the breeding colony. It is necessary to do a good job of production management in the summer and make preparations for autumn and winter production.
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