Both the United States and Argentina have developed animal husbandry, but it seems that Australia is drier and the climatic conditions are more suitable for raising sheep. Secondly, Australia's sheep industry is related to Britain. The industrial revolution in Britain needed a lot of wool, and Australia was its colony at that time, so the sheep industry developed greatly and then became a powerful industry. Cattle in the United States and Argentina seem to have lived on the American prairie before humans appeared. Based on the principle of using local materials and the demand for beef cattle in Europe and other markets, the cattle industry in the United States and Argentina is relatively developed.

breeding technology

First, build a house. The sheephouse should be located in a high and dry place, facing the sun and leeward. There should be a feeding area of 10-20 square meters in front of the sheephouse, and a fixed feeding trough and drinking utensils should be installed. There should be drains outside the house, and bamboo mats or concrete floors should be laid inside. Plastic film should be used to tie the shed in cold areas in winter, which can increase the temperature of the sheephouse by 4-7℃, which is beneficial to the growth of sheep. Different types of disinfectants, such as 20% lime milk and 10% bleaching powder solution, should be used in turn to disinfect sheephouses, sports grounds, feeding troughs, drinking utensils, feeding tools and pens regularly.

Second, split up. Sheep fed in houses should be raised separately according to the factory production mode, and special delivery rooms, lamb houses, mutton sheep houses, ewe houses, ram houses and sick sheep isolation houses should be set up, and corresponding feeding management measures should be taken.

Third, seed selection. Select excellent varieties with large size, fast growth, high reproduction rate, strong adaptability, good meat quality and high efficiency according to local conditions. South African Boer goat is the first choice of male parents, followed by China Matou goat. The female parent can be Sanyan goat, Hebei white goat, etc.

Fourth, mating. Regularly exchange breeding sheep from other places, wear ear numbers for breeding sheep and ewes, compile breeding files, record the number, breeding time, breeding mode and lambing situation of breeding sheep in detail, and control the hybridization of male and female sheep in a planned way to avoid breed degradation caused by inbreeding of sheep.

5. scale. The scale of raising sheep should be appropriate, which can be determined according to the existing cultivated land, forage, labor force and investment. It is generally advisable to raise about 20 fertile ewes, with an annual income of 10,000 yuan. As a family, you may not be able to get so much money at once. At the beginning of breeding, don't covet the scale, but constantly explore and summarize the breeding experience and snowball.

Sixth, density. Sheep are ruminants and spend a long time eating and ruminating in a day. Therefore, there should be enough slots and activity space in the sheepfold, and each sheep should have 1. 5—2。 5 square meters of activity space.

Seven, hello. Sheep are domestic animals that mainly eat roughage and supplemented by concentrate. It is best to plant grass and raise sheep on a large scale, so that you can eat fresh grass all year round. Sheep farmers should open up special land for green fodder and artificially plant alfalfa, ryegrass and other pastures. In addition to feeding grass in summer and autumn, grass can also be dried into green hay or silage for sheep after harvest in autumn.

You can also grow corn as silage for sheep to eat all year round. When preparing concentrated feed, besides a certain amount of corn, protein feed such as soybean meal, bran, fish meal and bone meal should be matched in proportion. In addition, if proper amount of compound feed additives such as rumen metabolism regulator and urea slow-release agent are added, the benefit will be better. In addition, large-scale sheep raising must have clean drinking water for sheep to drink.

Eight, disease prevention. Goats raised in groups are prone to diseases, mainly lamb dysentery, streptococcosis, infectious pustules, nematodes, sheep lice and so on. Carry out the policy of "prevention first, treatment second", and do a good job in vaccination and comprehensive prevention and control of key diseases.

Nine, management. Large-scale sheep raising should be based on self-propagation and self-support and reasonable grouping. If grazing, it is necessary to rotate grazing in different regions. And pay attention to the management of brushes and hooves.

Ten, castration. Lambs used for fattening should be castrated within 7-2 1 day after birth. At this time, castration is conducive to improving meat quality, making it docile, easy to manage and fattening fast.