How to breed high-yielding dairy goats in autumn and winter? Nowadays, many people have farmed dairy goats. In the breeding process of dairy goats, the breeding problem is also a big problem that needs the attention of farmers.
First, preparation before breeding
1. The high-yield ewes produce more than 12 kilograms per day at the peak, and about 5 kilograms per day during the breeding period in August, and drop to 2 to 3 kilograms during the estrus period. At this time, attention should be paid to the addition of concentrates, especially to the body. Thin sheep, at least 1 to 2 kilograms of concentrate per day.
2. Do a good job of quarantine the disease. Brucellosis, tuberculosis, etc. in dairy goats can be transmitted to each other by humans and animals, and there are many routes of transmission. Therefore, it is necessary to quarantine the sheep involved in breeding and eliminate the sheep with infectious diseases.
3. Do a good job of deworming. Internal parasites are easily transmitted, and should be thoroughly examined 2 weeks before breeding. Oral albendazole can be administered orally, 25 mg per kilogram of body weight, or levamisole hydrochloride tablets can be used, 30 mg per kilogram of body weight, once orally, or with hundreds of worms. Kill, 1% avermectin injection, drive out lung worms, flukes and nematodes.
4. Do a good job of vaccination. Not only must we do quarantine of brucellosis and tuberculosis, but also ensure the health of the ewes and the lambs we produce. We inject anaerobic bacteria five-in-one vaccine, inject 5 ml per sheep, immunize for 1 year, and let the lambs have enough specificity. Sexual antibody protection.
Second, seize the timing of breeding
1. Physiological characteristics. The milk goats are estrus for the season, and the summer season begins in the autumn and continues until the end of the early winter. In the coming spring, lambs are produced in the spring, 150 days in pregnancy, 10 months in the milking period, and 2 months in the dry period. High-yielding dairy sheep have reduced milk production during the first trimester and dry milk at the later stage.
2. Estrus characteristics. The lamb is sexually mature 5 to 8 months after birth and weighs 30 to 40 kg. The estrus cycle is 18 to 24 days and the estrus duration is 24 to 48 hours. Emotional performance: excitement, excitement, chaos, screaming, not thinking about diet; genital swelling, flushing, viscous secretions, strong wagging, willing to accept the ram's climbing.
3. Timely breeding. The ewes begin to ovulate after 10 hours of estrus, 30 to 40 hours of ovulation, 12 to 24 hours of egg fertilization, and 24 to 48 hours of ram sperm in the genital tract of the ewes, so the ewes in the ewes Breeding and fertilization is most suitable 24 hours after the period. To ensure the conception rate, it can be dispensed once every 6 to 12 hours.
4. Grasp the second sex breeding. The milk goats estrus every autumn, and the first estrus is called the first emotional period. If you don't have it, you will be empty for 1 year, but if you are not pregnant, you will be estrus after 18 to 24 days. This is called the second episode. In the first episode of the previous year, the conception rate was about 80%. If you were not pregnant, you should breed in the second episode, and rarely breed in the third episode.
Third, do a good job in pregnancy management
Pregnant ewes are emotionally stable, appetite is normal, the amount of food is increasing day by day, nutrition is sufficient, adding green feed, not feeding bad and bad feed; don't beat, rush, run flea, prevent mechanical abortion; don't use drugs casually, Especially hormone drugs.
Fourth, do a good job in late pregnancy management
High-yielding dairy goats have a slight reduction in milk production during the first 3 months of pregnancy. They should be forced to dry milk 2 months after pregnancy to reduce concentrate and water. After 1 week of dry milk, add more nutrients to allow the fetus to grow normally.
V. Fertility measures
Sheep that have not been conceived in the first episode should be carefully examined to find out the cause and take appropriate measures to assist pregnancy. If you have metritis, you need to rinse with penicillin plus PP solution (potassium permanganate solution). Do not estrus to inject estrogen, or feed aphrodisiac tablets, and add carrots and fat-soluble vitamins and winter grazing 70 ryegrass, valerian, etc., to promote the formation and division of egg cells.
Six, the management of the ram
The type of ram used must meet the standards for seeding. Do a good job in quarantine, body condition examination, and identification of seed traits. If the conditions are not met, they should not be used for seeding. For rams, concentrates and vitamins should be added, such as carrots and winter grazing 70 ryegrass, to strengthen exercise, enhance physical fitness, increase sexual desire, and promote sperm cell maturation.
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