The supplementary feeding of lactating ewes, breast milk is the main source of nutrition needed for the growth and development of lambs, especially in the first 20-30 days after birth, when there is more goat milk from the ewes, the lambs develop well, have strong disease resistance, and have a high survival rate. Sheep can be examined by B-ultrasound. If the ewe is not raised well, not only will she become thin and produce less milk, but it will also affect the growth and development of the lamb.

When giving birth to spring lambs, it is good to release them on the pasture. If the ewe eats good green grass, it can increase milk secretion. If the pasture is poor, it should be supplemented in moderation. When giving birth to winter lambs, in addition to grazing, high-quality hay and juicy feed should be supplemented, and during the breastfeeding process, sheep should be observed from multiple aspects using B-ultrasound.

The grazing time of lactating ewes and their lambs increases from short to long, and the distance increases from near to far. Special attention should be paid to weather changes. If there is a heavy snowstorm, the sheep should be driven back to their pens in advance. A few days before weaning lambs, it is necessary to reduce the feeding of juicy, silage, and concentrate to prevent the occurrence of mastitis in ewes, and use sheep ultrasound to observe lambs and ewes to avoid problems. The enclosure for nursing ewes should be regularly cleaned and kept clean and dry. Dirt such as placenta and wool should be removed in a timely manner to prevent lambs from swallowing and getting sick.

Age appropriate initial mating, correct use of reproductive techniques, and improvement of reproductive survival rate are important links in the development of sheep farming. The sexual maturity of ewes is generally between 4-8 months old. Generally speaking, after B-ultrasound examination of sheep, the first mating ewe can start mating when it reaches 70% of its adult body weight (i.e. 50kg for adult ewes and 35kg for first mating ewes). The appropriate age for mating meat ewes is 12 months old. For early maturing breeds and ewes with good feeding and management conditions, the mating time can be advanced.

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