1, feeding management before mating
Before mating, we must do a good job of catching and rejuvenating the ewes so as to provide nutrition for mating. In conjunction with dietary supplements, to maintain normal metabolism, we must also appropriately increase nutrients for lean and weak ewes after weaning to achieve regrowth. The Boer ewes reared at the sheep farm in Qinshui County are also mainly fed, and dry forages such as hawthorn vines and peanut stalks are allowed to feed freely, and they are grazing for about 4 hours each day. During this period, each additional feed is mixed with each other. About 0.4 kg. Mixed concentrate formula:
species
content
Crude protein
Metabolic energy
calcium
phosphorus
corn
60%
5.166
1.812
0.024
0.126
Soybean meal
25%
11.8
0.768
0.08
2, feeding and management during pregnancy
In the first 3 months of pregnancy due to slower fetal development, nutritional needs are basically the same as empty periods. In the second trimester of pregnancy, 80% of the fetus's body weight grows within two months due to the rapid development of the fetus. Therefore, there should be sufficient and full-price nutrition in these two months, and the metabolic level should be increased by 15% to 20%. %, calcium and phosphorus content should be increased by 40% to 50%, and there must be sufficient vitamin A and vitamin D. The pre-pregnancy period of Boer sheep reared in muddy water is basically the same as the empty period. In the later period of pregnancy, each of the supplemented concentrates is fed with 0.6 kg to 0.8 kg of dietary concentrate, and 3 g to 5 g of bone meal is supplemented daily. About 10 days before delivery should also be fed more juicy feed. Pregnant ewes should strengthen management, to prevent crowding, prevent jumps, prevent scared groups, slipping down, daily activities should be "slow, steady", can not eat moldy feed and frozen feed, to prevent miscarriage.
3, feeding and management during lactation
Postpartum 2 months to 3 months for lactation. Two months after childbirth, breastmilk is an important nutrient for lambs, and it is almost the only nutrient for 15 to 20 days after birth. Ewes should be guaranteed full price feeding. Boer lamb lambs generally have a daily gain of 200 g to 250 g during lactation. About 100 g of breastmilk is required for each 100 g of weight, and 0.3 kg of air-dried feed, or 33 g of protein, is required to produce 500 g of milk. Calcium and 1.2 grams of phosphorus. By the end of lactation, as the feed intake of the lamb increases, it can gradually decrease until the feeding of the ewes is stopped. The management of nursing ewes should pay attention to controlling the amount of concentrates. From 1 day to 3 days after delivery, ewes cannot feed too much concentrate and cannot feed Ling or ice water. Before lambs are weaned, the amount of succulent feed and concentrate should be gradually reduced to prevent breast disease. The ewe's house should be cleaned and disinfected regularly, and dirt such as the placenta and hairballs should be promptly removed to prevent the lambs from swallowing the disease. The Boer sheep reared on the water-breeding sheep farms were fed with 1 to 2 kilograms of succulent feed and 0.6 to 1 kilograms of concentrate each day in addition to the free intake of hay during the lactation period. In order to speed up the breeding of the Boer sheep ewes, the lambs were born for 15 days to 20 days, began to feed the full price of commercial piglets, and gradually fed some green feed. Generally, the lambs were weaned around 2 months of age.
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