The breeding goal of breeding cattle is to ensure the growth and development of the breeding cattle, cultivate gentle temperament and timely breeding, and start production as soon as possible. This requires the control of the body condition of the bred cattle, with the emphasis on preventing over-fertilization. General requirements 11-12 months of age to achieve sexual maturation weight of 270 kg, 16-18 months of age reached 340-380 kg, daily gain of 600-700 grams. It is necessary to provide a sufficient amount of green hay to the bred cattle to stimulate the development of the rumen, increase the volume of the rumen, and facilitate the subsequent intake of large amounts of feed to meet the needs of milk production.

First, strengthen sports. Under house-feeding conditions, there should be at least 2 hours of drive-off per day. In grazing and camping management, it takes 4-6 hours of exercise each day.

Second, timely breeding. Observe the priming period of each bred cow in order to accurately grasp the timing of breeding. For long-term non-estrus cows, check with an artificially inseminated veterinarian or veterinarian.

Third, massage the breasts. After bred cattle are mated, the mammary gland tissue is in a high stage of development in the middle and later stages of pregnancy. At this time, massaging the breasts or washing the breasts with warm water can promote the development of the mammary glands, which is very beneficial to the increase of milk production, and can be used to facilitate postpartum milking. Foundation. After 12 months of age, the bred cow should massage the breast once a day for 2-3 minutes to promote the development of the breast.

Fourth, brush cattle body. Brush 1-2 times a day. Use a soft brush when brushing, use a lighter technique to make cows feel comfortable, and keep the body clean and promote blood circulation.

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