Most first-time ewes need artificial delivery under the supervision of sheep B-ultrasound. After delivery, the umbilical cord is artificially cut, and some ewe urine is wiped on the lamb's body, the purpose is to let the ewe have her own lamb. According to the feeding and management of lambs, it can be divided into three stages: pre-, mid- and post-stages. In the early lactation period (from birth to 20-25 days of age), improving the quantity and quality of breast milk should be taken as the basic measure for breeding. In addition to appropriately increasing the concentrated feed of ewes, the amount of juicy feed such as carrots, pumpkins, and leafy vegetables should also be increased to promote lactation. Under normal circumstances, lambs need about 500 grams of breast milk for every 100 grams of weight gain. During the lactation period, sheep B-ultrasound should be used to regularly check the condition of lactating lambs.

Sheep B-ultrasound

This stage mainly focuses on three things: ① Eat colostrum in time. Lambs should eat enough colostrum within 1 hour after birth; ② Try to supplement feeding in advance. Generally, lambs should be supplemented with feed at around 10 days after birth to train their ability to eat fine and roughage feed, and to increase nutrition to meet the needs of lamb growth and development. It is necessary to use B-ultrasound to check the growth of lambs at this stage. The training method is to use vertical column-type sheep fences (the spacing between fence posts should be suitable for lambs to enter and exit) in a spacious and bright sheep house, separate lamb supplementary feeding fences of appropriate area, put feeding troughs in them, and evenly sprinkle some fried yellow fine feed, chopped carrot shreds, green grass or green hay in the troughs. Green hay can also be tied into bundles and hung up (the height should be suitable for lambs to eat when they raise their heads); ③ Exercise as early as possible to enhance the physique of lambs. The feed for lambs in the middle lactation period (from 20-25 days of age to grazing in the mother-child group) should be diversified, with less feeding and more frequent addition. Regular lactation, generally 3-4 times a day, once in the morning and evening. Use B-ultrasound to check the lambs, pay attention to the growth and development of the lambs at any time, so that the whole group develops evenly. In the late lactation period (from grazing in mother-and-lamb groups to weaning at around 4 months of age), lambs can be grouped together during the day to graze in places with good pasture quality and close to the sheep shed where conditions permit. The distance between the grazing pastures for ewes and lambs should be such that they cannot hear each other's calls. Mothers and lambs stay together at night.

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