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1 Make up as early as possible. One week after birth, the lamb began to follow the ewes to learn to eat lamb pellet feed, and continue to feed pelleted feed at the age of 15-20 days to promote its rumen development. After 1 month of age, they were allowed to eat starter foods, which were digestible, soft and scented wet materials. In addition, a feeding trough supplemented with salt and bone meal is provided for promoting free access.
2 To wean gradually. Lambs are planned to be together with the ewes 10 days before weaning. During the day, the lambs are separated from the lambs. The lambs are allowed to move in the feeding bar provided with feed troughs and drinking troughs. The floor of the lambs' activities should be dry. Rainproof, good ventilation.
3 Epidemic prevention, common infectious diseases of lamb fattening include intestinal venom disease and hemorrhagic septicemia, etc. Triad four anti-inactivated dry powder vaccine can be used to prevent ewes before lambing, and lambs can also be injected before weaning.
When the lamb was grown to 7 weeks of age, the activity of maltase in the rumen was gradually revealed. At 8 weeks of age, the activity of pancreatic lipase reached the highest level. At this time, the rumen has been fully developed, and it can feed and digest a large amount of vegetable feed. Therefore, it is theoretically considered that early weaning is reasonable at 8 weeks of age. The main benefits of early weaning: First, the lamb's lambing interval is greatly shortened. Secondly, after ewes lambing, the peak of lactation is reached in 2 to 4 weeks. The amount of lactation in the 3 weeks is equivalent to 75% of the total amount of total milk in the whole period, and the amount of lactation is significantly reduced thereafter. Therefore, the nutritional composition of breast milk secreted by female ewes after 60 days of age cannot meet the nutritional needs of lambs for rapid growth and development. Finally, the traditional natural weaning method usually delays the development of the rumen and digestive tract of the lamb, and the longer weaning transition period affects the fattening after weaning. Early weaning of lambs enables lambs to feed on plant feed earlier, which can promote the development of digestive organs of lambs, especially rumen, promote the ability of lambs to feed forages earlier, and increase the feed intake of lambs in later cultivation. And the utilization of roughage can also establish the dynamic balance of digestion and metabolism in the rumen of lambs. As long as early weaning measures are in place, lambs’ gains in feed utilization are higher than those in ewes fed feed converted to breast milk and then converted to lambs. The main technical points for early weaning are: