Breeding of hybrid pig fattening
Landrace boars such as Landrace, Yorkshire, Duroc, and Hampshire can be used to cross hybrids with native purebred sows, and lean-type commercial pigs can also be produced using three-way hybrids. The above-mentioned hybrid generation was used as a female parent, and another lean-type boar was used as a parent to produce a commercial pig. The cross-breeding pigs produced in this way have strong disease resistance, robustness, and a birth weight, and then they can produce high-efficiency lean-type commercial pigs through scientific breeding techniques.
Science fattening
In order to increase economic efficiency, it is necessary to adopt a consistent fattening method, also known as the "linear fattening method", rather than the traditional method of hanging shelf fattening. This will shorten the feeding cycle from about one year to about six months. At the same time, we must also pay attention to the following three links.
When reasonably using compound feed pigs up to 50 kg, crude protein in compound feeds should reach 16%~18%, digestive energy should reach 2.8 megacalories per kilogram; feeds should be fed from 0.75 kilograms to 1.5 kilograms per day, and small Gradually increase to the big. 50 kg to 90 kg, with the crude protein in the feed amounted to 12% to 14%; 1.5 kg to 2.5 kg of compound feed was fed daily, and the amount of feed was gradually increased. The amount of daily feeding in two stages should be increased by 0.2 kg every 10 days to 15 days until the high limit.
Changing the cooked feed for a living can not only save a lot of fuel, reduce costs, but also avoid the destruction of large amounts of vitamins due to cooking. However, beans in compound feeds must be fried and crushed before they can be used.
The feeding method was fed twice a day, first feeding the concentrate, then feeding the green material, and finally feeding the water. Do not feed with fine material and green material. The concentrate can be mixed with wet feed. The feed water ratio is 1:2. The green material can be chopped and the drinking water supplied must be clean and hygienic.
Strengthen disease prevention and management
The pigs in the upper circle must first undergo the injection of swine fever, erysipelas, and lung disease. Disinfect the quarters with lime every two weeks. Liquefaction disinfection pits shall be provided for the entrances and exits of the pens. When piglets are lapped and grow to 50 kilograms, they should drive their internal parasites once. Circles are frequently cleaned and often kept clean and dry. The pig house should be cool in winter and cool in summer. After the lap, emphasis should be placed on teaching to eat, sleep, and pull urination. According to the size of the strength of the group feeding.
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