Mammary hyperplasia is common in young dairy cows. Sick cows often have breast pain and hard lumps in the breast area. Sick cows are depressed, irritable and easily frightened. The characteristics of veterinary ultrasound images of cows with mammary hyperplasia are as follows:

① Large sheet-like low echo area on veterinary ultrasound machine, uneven internal, no or less internal blood flow, no distortion of blood flow, unclear or unspecific boundaries, no obvious changes in surrounding tissues, no change or enhancement of posterior echo, and some sick animals have tenderness. This type of glandular layer is prone to peripheral areas, local glandular layer thickening, can be single or multiple, and can involve unilateral or bilateral mammary glands.

② Strip-like low echo on veterinary ultrasound machine: The diameter is greater than 2mm, multiple and common, and can exist simultaneously with the above lesions.

③ Cyst and (or) peripheral duct dilatation: The latter presents elliptical or columnar cystic changes, single or multiple, and can also exist simultaneously with the above two conditions.

④ Small nodules were found in the veterinary B-ultrasound examination, most of which were less than 2cm; except that the borders were clear or specific but not smooth, the manifestations were similar to type ①; and the above 3 manifestations could also exist at the same time. Pathologically, it is often mammary gland disease.

Measures to prevent breast hyperplasia in dairy cows:

1. Keep the udders of dairy cows clean, insist on proper exercise, and keep the environment quiet. Use hormone-containing drugs and additives with caution. Limit the amount of animal fat and sugar-rich feed, do not feed spicy and irritating feed, and feed green and juicy feed.

2. After the discovery of breast hyperplasia in dairy cows, in addition to normal massage and milking, after feeding every night, massage the lower part of the breasts 50 times each on both sides of the breast regularly, which helps to promote the return of blood and lymph in the breasts to reduce the activity of mammary cells.

3. In the late stage of the disease, in order to promote recovery, hot compresses can be applied to promote tissue blood circulation, improve the resistance of the cow, dissipate inflammation, localize the lesions, and relieve local pain of lumps.

4. Choose Rukang tablets for human use, feed 30 tablets to each cow 3 times a day; or use Ruhe Sanjie tablets, 40 tablets each time, mix with a small amount of feed and feed 3 times a day; you can also use Ruzengning tablets, 20 tablets each time, feed 3 times a day; you can also use Rupixiao capsules, 40 capsules each time, take 3 times a day. Continue to use until the breast lumps subside.

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