The reaction of the puppy body to the disease has its own characteristics, such as: the puppy has a strong absorption capacity, the barrier function is very weak, the course of the disease progresses rapidly, and it is easy to spread the whole body. Therefore, when the first symptoms of the puppy disease are found, effective prevention and control measures should be taken to control the development of the disease. It is necessary to check the gastrointestinal condition of the puppy with veterinary B-ultrasonography.

The growth and development of puppies have their own morphological structure and physiological characteristics at different ages. The development of intestines and intestines can be seen through B-ultrasound. The main physiological characteristics are as follows: the body metabolism is strong, the growth and development is rapid, the nutrition needs are strict in quality, and the response to malnutrition is also very sensitive; The cerebral cortex is underdeveloped, the neuroregulatory mechanism of organs and tissues appears late, and the body's responsiveness and adaptability to the external environment are poor, which requires regular observation of veterinary B-ultrasound. Body resistance is weak,

Animal ultrasound

Lack of innate immunity, only after sucking colostrum can obtain maternal antibodies, its number is small, the resistance is low, the resistance of young animals mainly depends on the perfection of the physiological function of the body and the condition of feeding and management, the reactivity of the animal body is formed in the early embryo, the reaction level after birth depends on many factors such as heredity, feeding and management. The puppy's reactivity is low in the first month after birth, its defense adaptability is also low, and its digestive system will be found to be underdeveloped by B-ultrasound. The reason is that the structure and function of the immune, nervous and endocrine systems have not yet been fully developed, and it is the key to ensure that the young animal sucking colostrum in time after birth and giving good feeding and nursing is the puppy body to obtain high resistance as soon as possible.

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