1 Scientifically building a sheep house requires the sheep house to face south to the south, with a leeward sun, dry and clean, and convenient for herding. The size of the sheep house is preferably 1 to 1.2 square meters per sheep. The height of the sheep's bed is from 1 to 1.5m above the ground, the diameter of the head of the sheep's bed is more than 12cm, and the distance between the beams is 40 to 45cm. The bed board is laid flat with 7 to 10 cm wide bamboo slips, leaving 1 to 1.5 cm wide gaps between the bamboos. There are classified fences such as basic ewe fences, pregnant ewe fences, and mother fences. There are playgrounds outside the house.
2 Select excellent sheep breeds to select high-yielding and high-quality breed sheep according to their use. Sheep can choose Nanjiang Huangyang, Sichuan Mayang, Jiangsu Huyang and Xiaohai Han sheep and other breeds, dairy goats can choose Swiss Shanneng goats, Shaanxi Guanzhong dairy goats and other varieties, sheep can choose Xinjiang fine wool sheep, Roma tail sheep, etc. Variety. Requests for exotic species of ram weight more than 40kg, ewes more than 30kg, local breed ram weight about 30kg, ewes about 20kg, ram body size is robust, straight back, deep chest, testicular development, male characteristics. The ewes are large in size, compact and full-bodyed, with a straight back, a slightly larger posterior abdomen, well-preserved limbs, and well-developed breasts and reproductive organs. Through pedigree surveys, multiple male and female lambs were selected for breeding.
The ability to breed rams for the three rams depends on a strong constitution, ample energy, and a strong sexual desire. Therefore, it is necessary to ensure adequate supply of protein, vitamins, and minerals in feed, and maintain a moderate degree of lyricism in breeding sheep. In the first month before mating, daily supplement of corn, wheat bran, bean cake, bone meal and other fine material 0.5 ~ 0.75kg, radish, vegetables, etc. green and succulent feed 1.5kg, 2 eggs, enough for drinking water. The rams are bred only once a year to prevent the lambs from the four seasons. Sheep that are not in the breeding season should be grazing alone.
4 The age of first-time mating Lamb ewes is 10 months or more and 8 months of rams; the weight of sheep is more than 40kg, milk goat is 35kg, and meat sheep is 25kg. If 1 year, 2 children can be arranged for breeding in the spring and autumn. The ewes showed ectopic flushing, efflux of mucus, wavy upturns, continuous vocalizations, and reduced feeding and restlessness. The ewes were found to have estrus and should be bred in time. The ratio of natural mating to male to female is 1: (20 to 30), and the ratio of artificial mating to male to female mating is 1: (60 to 80). The first mating can be repeated 1 to 12 hours after breeding, which will help improve the conception rate and litter size. As long as timely breeding, scientific management, you can achieve 2 or 3 tires a year, with an average annual litter size of 2 or more, and some as high as 3 to 4.
5 The artificial aphrodisiac method is normal for the ewes of the ewe, but the estrus is not estrus for a long time or misses the estrus period. Artificial aphrodisiac breeding without artificial fertilization is available. Methods include:
5.1 Vaginal Sponge Method The sponge impregnated with progesterone is placed on the outer cervix of the ewe's cervix for 10 to 14 days. The pregnant sera are injected with gonadotropin 400 to 500 Iu after discontinuation of treatment. After 30 hours, the ewes can be estrus. The inseminations are performed once a day and the following day. The hormones used were: progesterone 150-300 mg, medroxyprogesterone 50-70 mg, methadone 80-150 mg, 18-methyl norethindrone 30-40 mg, and fluroginone 20-40 mg.
5.2 Oral feeding of the drug evenly into the feed, and even fed 12 to 14 days, the amount of the drug is 1/5 of the vaginal sponge method, intramuscular injection of pregnant goat serum gonadotropin 409 ~ 750Iu.
5.3 Prostate hormone method In the end of the estrus estrus a few days later, into the uterus or intramuscular injection of prostaglandins, 2 to 3 days to estrus breeding.
6 Inducing multiple lambs
6.1 Superovulation On the 12th to 13th day of the estrus cycle of the ewes, intramuscular injection of maternal serum gonadotropins (600 to 1100 IU) was performed immediately after estrus. The chorionic gonadotropins (500-750IU) were injected into the muscle of the same day. Ten eggs.
6.2 Supplementary aphrodisiac supplementation is provided 30 days before breeding of the ewes.
6.3 Two kinds of liquids and oils are used in double lambs or digesterins. Normally, 1 mL of the aqueous preparation is injected subcutaneously in the neck 2 weeks and 5 weeks before the ewe is mated, or 2 mL is injected into the hip muscle injection product 2 weeks before the breeding.
7 Careful rearing of ewes Feeding ewes must be fed in addition to the four seasons, especially during the mating season, gestation period and lactation period. The feed formulation was hay powder 50%, corn meal 20%, wheat bran 10%, cooked soybean powder 5%, wolfberry cake 13%, shell powder 1.5%, salt 0.5%. After 30 days of mating, the ewes will be fed for a short period of time. Feed 0.2kg per day of concentrate, and 0.5kg of succulent feed for vegetables and vegetables. During the second and third trimesters of pregnancy, 0.45 kg of concentrate, 1 to 1.5 kg of hay, and 1.5 kg of silage were supplemented daily. If conditions permit, the straw can be fed ammoniated or micro-reserved. The principle of feeding is to feed the grass first, then feed the grass better; feed before the animal husbandry, the grass after feeding; feed trough, less to add Tim; winter and spring drink warm water, summer and autumn Drink well water. Ask the feed to be fresh and free of mildew, drinking water is clean and non-toxic. Grazing in spring to control the sheep, to prevent "running green." The top wind is grazing, and the wind is turned to the animal husbandry. After the animal husbandry, suitable amount of feeding is provided. In the summer, the pasture is better; the animal husbandry is later; the animal rests at the noon; the autumn and winter are far away; the pasture is the late returning animal husbandry; the frosty day is late; the pasture is the pastoral return; the snow is not grazing; the pregnant ewes Late grazing on the spot. It is strictly forbidden to whip, hurry, scare, cross-ditch, cross-over, etc. in grazing to prevent miscarriage. Pregnant sheep have abortion abortion, can be intramuscular injection of progesterone 0.1 ~ 0.2g, 1 injection a day, continuous injection of 4 to 6 days.
8 The gestation period for the ewes to accept the production of ewes is about 150 days, and they enter the delivery room 7 days before the onset of labor. The maternity ward is cleaned and disinfected one week ahead of time, and the grass is matted and the temperature is maintained at about 8°C. The equipment used for the production shall be cleaned and disinfected, and the confinement personnel shall shorten the nails and disinfect. Wash the tail, genitals and anus of the ewes before going into the labor, and disinfect with 1% of Sur. After the lambs are produced, wipe the umbilical cord with iodine to prevent infection. In case of large fetus or malposition of the fetus, timely correction of the fetal position is necessary and artificial midwifery is implemented to ensure the smooth output of the lamb. In case of premature death of the lamb, the mucus and fetal water in the respiratory tract should be removed first, the nostrils should be cleaned, and the animals should be blown to the nostrils or artificially respired. The frozen lamb is to be transferred to the greenhouse and placed in a bath of 38 to 40°C for 20 to 30 minutes. It has been proved that the injection of estradiol benzoate or chloroprostaglanditol 1-2 mL 3 times before the ewes' pre-production can enable 90% of the ewes to breed lambs within 48 hours and control the daytime ewes of the ewes. Easy to care, lambs have a high survival rate.
9 Carefully raise lambs Lambs should eat colostrum 1 to 2 hours after birth. If you do not know the mother and child, you can wipe the mucus on the lamb into the mouth and nose of the ewes and induce the ewes to lick the lambs. The mutton lamb should be strengthened for the weak lamb. If the ewes have insufficient milk, the ewes of the single lamb or dead lamb can be found on behalf of the ewes, or they can be fed artificially. Artificial milk can be used fresh eggs 2, cod liver oil 8mL or 2 thick cod liver oil pills, salt 5g, milk 500mL, appropriate amount of magnesium sulfate dubbed. Before feeding and warm up to 38 ~ 39 °C. The lambs were fed 6 to 8 times a day for 4 weeks after birth, and each time they were fed 50 mL. After 5 to 7 weeks, they were fed 4 to 5 times a day and each time they were fed 100 mL. After 9 weeks, they were fed 2 to 3 times a day and each time they were fed 150 mL. . After 3 to 7 days after birth, the sheep was ligated with rubber aprons and ligated at 4 to 5 caudal joints. The lambs that were not used for seeding were ligated and fattened at 3 to 15 days postpartum. 7 to 10 days of age can be used to attract lambs and saute feed fodder lambs early feeding, and appropriate amount of feeding chopped grass; 15 days old feed wheat bran, corn and other cooked porridge, 30 days old will be concentrated material mixed with water Wet raw feed, 50 days old feed bean cake, bone meal, fish meal, etc., and provide enough water for drinking. The lambs can be grazing near the sheep house after 8 days of age, and they are mainly grazing since 30 days old, supplemented by fine material feeding. Strengthen your exercise and stay in the sun.
10 Weaned lambs can be weaned 3.5 to 4 months of age at the appropriate time. The weaning of 2 lambs a year can be earlier, and the lambs that are poorly developed and planned for planting can extend the weaning period appropriately. Lambs should be fed before weaning. A weaning method is generally adopted. Lamb feeding or nursing is gradually weaned within 7 days. The weaning lamb is kept in the original house. The first estrus of the ewes is usually 1 to 1.5 months after childbirth. The early weaning of the lambs is performed. The ewes are used to treat the ewes for about 10 days. Maternal serum and gonadotropins are injected after drug withdrawal to induce ovulation of the ewes. , timely fertility breeding, increase the number of births per year.
11 Strengthen Management Work Sheep houses keep cool in winter and cool in summer, shelter from the sun, do not leak rain, and do not wet. Sweep the sheep house every day and change the bedding to keep it clean and dry. The sheep was sterilized with a 200-ppm speed killer spray around the sheep house and in the empty plots, and it was performed once in autumn and winter and early spring. Regular doses of 0.2 to 0.3 mL of insect killer per kilogram of body weight are given subcutaneously, or levodozole or propylthiocarbazole is given as 10 mg per kilogram of body weight. Regular injections of various bacterin vaccines prevent the occurrence of infectious diseases, but pregnant sheep are not allowed to be vaccinated. Every spring and summer, hoofs are cleaned once a day and the sheep body is brushed every day. To achieve a net net of grass, drinking water, feed trough net, sheep and sheep net body, and early detection of diseased sheep.

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