First, the environmental conditions are poor and the infrastructure is poor. Farmers follow the traditional “low input, high yield†farming model. “One wooden stake and one sheep†phenomenon is more common. Most of the pens are simple and easy to use, and the summer is not cool, the winter is not warm, and the indoor air is dirty. It is dark and damp. Long-term contact with wet and dirty ground, sheep is prone to parasitic diseases, and it grows slowly, is not easy to heat and breed, and production performance is reduced.
Second, the breeder's responsibility is not strong. Some cultivators have high enthusiasm but do not understand breeding techniques. The keeper hired neglects the health condition of the sheep in their daily feeding and management, from winter cold and warmth, to forage grass, to summer heatstroke, and to provide High-quality forage grass, insect repellent and epidemic prevention have not been properly arranged and handled, resulting in poor quality of sheep groups, low productivity, and continuous disease.
Third, lack of fodder. Farmers mostly introduce sheep in the spring. The initial supply of forage materials is still sufficient in time. After a period of time, the number of pastures cultivated is too small and the size of the breeding start is too large (the number of basic groups is as low as 40 to 50, and as many as More than 100). Forage crisis appeared. Weeds can only be maintained by the acquisition of weeds. Both the quantity and quality of the grass cannot meet the growth needs of the sheep. Some peasant households were mainly fed with dietary feed in the absence of forage grass, causing sheep to be disrupted due to the lack of forage, and the system of microbial balance in the digestive system was disrupted, causing a series of disorder of the intestinal flora and impeding growth. Some farmers barely survived the fall, and it was still a problem to feed forage in the winter. At this time, most of the ewes were already pregnant with mating. The small amount of stored peanuts and rapeseed hulls were not a permanent solution at all. With dry corn stalks and dry straw, this feeding not only does not guarantee the nutrition of pregnant ewes, but also it is difficult for fattening sheep to maintain growth. The phenomenon of “summer strong, autumn fat, winter thin, and lack of spring†appears.
Fourth, the prevention and control of insecticide is weak. Many farmers believe that sheep are less diseased than pigs and poultry, and are relatively easy to raise and have a low awareness of deworming. Some farmers never disinfect sheep houses and sheep, and some do not even use basic vaccines. In the case of relative concentration and no precautions, the breeding of pathogens will be accelerated, the resistance of the sheep will be poor, and the outbreak will be prone to disease.
Fifth, feeding and management are not in place. Practice has proved that the use of high-bed sheep is less and more convenient. It reduces the long-term direct contact between sheep and feces and urine. The opportunity for sheep to infect germs and eggs is reduced, and forage waste is reduced, saving manpower. Adopting a high-bed culture can ensure that the house is cool in winter and cool in summer, not only conforms to the sheep's living habits, but also can fully exert the sheep's production performance and reduce the occurrence of diseases.
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