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孵化技术(Incubation technique).doc

发布:2017-07-16约2.29万字共17页下载文档
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孵化技术(Incubation technique) Artificial incubation techniques for chickens The development of birds and animal embryos is different from the development of mammalian embryos, such as pig and cow sheep, which are zoologically called ovis-born animals, which are called viviparous animals. The embryo of the viviparous animal develops from the fertilized egg until it has matured into a complete animal infant. The eggs of the ovum, after fertilization, produce the mother after the early cell division. The egg, which is known as an egg, stops developing. After giving the appropriate temperature, humidity and other conditions, it will start to leave the mother and develop again until it is mature and out of the shell. This process is called incubation. The incubation process is usually done by birds themselves in nature. Birds have a small amount of natural incubation and are unable to adapt to large-scale production. After observing and studying the natural hatching of birds, many conditions in the incubation process are provided and controlled by human beings, thus resulting in artificial incubation. Domestic poultry has been incubated for a long time, and there are many methods. Such as in north China, northeast, northwest and other northern areas popular with the method of the White House; The cylinder incubation method adopted in the Yangtze river region; South west, south China and other use of the bucket hatching; And kerosene lamp hatching method. The above methods are characterized by simple equipment, little investment, but large labor intensity, and difficult to control the incubation conditions. Therefore, the incubation rate of the equipment is difficult to guarantee. With the development of science and technology, the intensification of the demand for the development of poultry industry, automatic control of temperature control and humidity, automatic egg turning incubators have been widely used in recent years. Electric hatching equipment automation degree is
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