Monday, January 3, 2011

Sheep farming

 Sheep farming technology introduced:
1, moderate scale breeding
with any other industries, the sheep should be the pursuit of economies of scale. Meat goat breeding in the appropriate scale of investment depends on the ability of farmers, market prices, pasture area, feeding and management conditions and the proportion of male and female, and many other factors. goats in a natural mating situation, ram, and can be complicated with the proportion of ewes is generally 1:25, appropriate scale should be 40-50.
2 reasonable clustering in addition to keeping
sheep breeding production, the sheep production is the traditional method of self-support from the fan. As sheep and lamb production for different purposes, sheep and weaning lambs should be kept or household cluster feeding. species of sheep husbandry extensive than the lamb, the point is to keep breeding body condition, breeding a timely manner to prevent leakage distribution and abortion, in the breeding period and to give adequate nutrition during pregnancy; and lamb feeding and management's focus is to provide nutritious whole forage, pay attention to warm cold and disease prevention.
3, building from the ground to Yang She
Yang She has a dry, ventilated, easy to remove feces, etc., in the rain, humidity of the southern region has a large area of application. It should be noted from the cold and warm in the winter to Yang She work in order not to affect the growth of lambs and sheep fat off substantially.
4, planting high-quality forage grass
is the main food goat for the goats to provide nutritious, palatable forage quality is the key to breeding high quality and efficiency goat. the city can make use of mountain sheep farmers bending fields, fallow fields, such as hillsides and forest rotation or intercropping of ryegrass, corn and other high yielding Napier grass, along with other soybean straw, peanut and sweet potato vines and other agricultural products, basically solve the source of sheep forage throughout the year to reduce feed costs and increase efficiency sheep.
5, lamb feeding lamb fattening fattening
goal is to improve the daily gain and feed efficiency. traditional grazing fattening the lamb a lot of physical wear and tear, resulting in feed utilization, reduced daily gain and fattening period is extended, the result is to increase the the breeding costs. Therefore, the promotion of lamb fattening feeding is an important breeding goats and efficient measures. fattening shed to ensure adequate green feed or hay, under the premise and concentrate mineral supplement. goat farmers can buy minerals licking bricks, hang it in the circle for the sheep free licking. concentrate can choose corn, soybean meal and other raw materials, preparation of their own. goats grazing fattening than the shorter feeding fattening fattening of 1 to 2 months.
6, appropriate weight
meat goat slaughter slaughter important basis for the appropriate body weight gain, feed efficiency, dressing percentage, and other production performance indicators and comprehensive assessment of market demand. slaughter weight is too low, the growth potential of goats was not full, production of meat volume is low; slaughter weight is too high, although the production of meat increased, but decreased feed efficiency. Different varieties or hybrid combinations suitable for slaughter goats is usually months old 6 to 8 months of age.
7, timely and insect immunity
Goat Disease Control and Prevention has been the weak link in goat production, farmers must draw great attention. In addition to good sanitation and management of cold and warm, the regular disinfection, immunization, and get rid of parasites in vivo is to prevent goat disease, reduce mortality and improve the breeding efficiency of the three technical measures. farmers fold per month for homes and Sports to conduct a thorough disinfection. iodine disinfectant can be used efficiently, toxic or caustic soda a hundred, it is best to use a different rotation disinfection of medicine, to increase the disinfection effect. In spring and autumn to the sheep injected with triple anti-vaccine can prevent four infected sheep fast, sudden pass away, lamb dysentery and intestinal toxemia; every spring, the size of sheep and goat pox vaccines separately root and Yang Wei intramuscular injection of goat pleuropneumonia vaccine can prevent disease and goat pox goat pleuropneumonia. goat de-worming once each spring and external parasites.
increase
talk about Han sheep breeding program, if well-arranged rationally determine the mating time, the tail sheep annual 2 in 1 or 2 annual output of 3 child birth.
one
tail sheep breeding period the average number of days pregnant 148.33 days, the majority of ewes 40 days after delivery may be estrus breeding. Han sheep in spring and autumn heat more concentrated, so 1 year 2 child in March -4 April breeding, lambing month of August -9, -10 or September breeding months, can be produced in February -3 March -3 .2 second child per month in January, after weaning, is in the grass season, is to cultivate a good season back sheep; August -9 lamb weaned per month, after fattening, it is the winter supply of lamb to the market meat a golden opportunity, 2 years and 3 fetal sheep in August -9 lambing month, October -11 breeding months, March and April lambing -4. if supplemented estrus synchronization technology, better.
Second, synchronization of estrus
ewes estrus synchronization of estrus is the period of treatment.
1. estrus synchronization of the commonly used drugs. generally into two categories: one is the suppression of estrus agents, are progesterone-like substances, such as progesterone, medroxyprogesterone acetate, norethindrone, chlormadinone, fluorine progesterone, 18-methyl norethindrone and so on, they maintain a certain level in the blood, can inhibit follicle growth and development. The other is in the application Based on these drugs with the use of gonadotropin, such as follicle stimulating hormone, luteinizing hormone, PMSG and HCC, as well as with the promotion of the role of endogenous gonadotropin-releasing gonadotropin-releasing hormone (GnRH). use of these hormones to promote follicular growth, maturation and ovulation, the ovulation period of estrus to a higher level, to improve conception rate.
2. estrus synchronization approach. The most common is the vaginal embolism: take a piece of sterile foam, the diameter and thickness according to the size of the sheep, usually 2 cm -3 cm, too easy to slip too easily lead to efforts to select ewes and will be squeezed out. hung in the foam on a thin sterile , the other end lead to the vagina mouth, easy to pull out the end of processing. the foam solution impregnated with progesterone preparations, long-handled with sterile forceps plug to the cervix outside the mouth. put out 14 days -16 days and intramuscular PMSG400 IU -700 IU, 2 days -3 days to be processed most of the performance of ewes in heat, estrus day in and day 1 of each insemination.
reference to the amount of drug type and generally: 40 mg -60 mg of medroxyprogesterone acetate, megestrol acetate 40 mg -50 mg, 30 mg 18 -40 mg of methyl norethisterone, chlormadinone 20 mg -30 mg, chloride 30 mg -60 mg progesterone, progesterone 150 mg -300 mg.
three breeding ewes pregnant and nursing
after 18 days -20 days after the show is no longer in heat, you can initially judged to have been pregnant. ewe 3 months of pregnancy the fetus has been formed, hand-to-belly, breast lumps before .4 months -5 months of fetal growth and development of rapid in vivo metabolism of ewes and the rapid increase of total energy metabolism. This phase ewes abdomen increases, Xu Wo staying, breast enlargement, careful action is slow, gentle temperament. this time the need to strengthen the feeding and management, if nutritional deficiencies, especially lack of protein, calcium, phosphorus, likely to cause miscarriage or premature birth ewes.
should Baotai measures taken:
1. clustering feeding. pregnant ewes can not be mixed with other sheep, group feeding, feeding to a separate group;
2. to ensure that nutrition. ewes should be fed well during pregnancy feed, especially in late pregnancy, fetal development soon to strengthen the nutrition of ewes, rich and full price of the supply of nutrients, such as legumes, succulent feed and mineral feed (bone meal), be increased concentrate supply;
3. lambs weaned early. If an annual output of 2 fetal sheep, then the lambs should be weaned at 3 months of age, so that both the early resumption of ewe body, without affecting the growth and development of the Lamb;
4. prevention of disease. pregnant ewes can lead to miscarriage illness, so pay attention to ewe pens the whole pregnancy health, good cold or heatstroke work, avoid eating rotten bad and toxic feed, to prevent various diseases occurred.

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