Introduction of physiological characteristics of fattening pigs
(1) stage Division of physiological characteristics of finishing Pigs
According to the physiological characteristics of fattening pigs, generally divides its growth process into two stages: 25kg to 60kg is the early stage of fattening, and 60kg to 100kg is the late stage of fattening.
The picture shows: sow
(2) physiological characteristics of finishing pigs
For pigs with more than 25 kg of , although their growth and development is in a vigorous period, their digestive system is still not bitter, and there are not many active ingredients in digestive juice, which affects the absorption of nutrients in some feeds, and the volume of stomach is still small, which can not hold more food at one time. The resistance of the nervous system and the body is also in the stage of gradual improvement. Therefore, it is necessary to provide high-quality feed that is easy to digest and absorb, strengthen management and improve the feeding environment.
After the body weight of reached 60 kg, the physiological function was gradually improved, the digestive system was greatly developed, and the digestibility of various substances and the absorption of various nutrients in feed were greatly improved. The resistance of nervous system and body to various external stimuli is also greatly enhanced and developed in an all-round way, and it also has great adaptability to the surrounding environment. The growth speed is the fastest in this period, so we should seize the opportunity of fast fat gain, provide high quality compound feed to meet the growth of fattening pigs in time, and give full play to the advantages of fast growth of pigs. in order to achieve fast weight gain, high fattening rate and high feed utilization rate, reduce cost and increase economic benefits.
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The law of growth and development of stored fattening pigs
On the basis of understanding the physiological characteristics of finishing pigs, it is very important to grasp the changes of tissue growth and deposition in the process of growth and development of finishing pigs. On the one hand, it can be determined according to the changes of muscle, fat, skin and bone of fat pigs in different periods.
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Causes and solutions of diarrhea in early weaned piglets
The etiology of postweaning diarrhea in piglets is complex. Studies in the past 20 years have shown that dietary factors are the main cause of postweaning diarrhea in piglets. The reason is that there are generally a certain number of pathogenic microorganisms (pathogenic Escherichia coli and wheel) in the gastrointestinal tract of ① healthy piglets.
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