How do farmers' friends feed the Dahewu pig sow? It is a Chinese-foreign mixed-breed pig breed that inherits multiple parental advantages and can be raised throughout the country. It is an excellent pig breed from Yunnan, Dahewusu. In China's swine industry, the crossbreeding of foreign pigs and local pigs to improve the growth traits of local varieties, thus improving the pig's performance, is a common practice for breeding swine in China. The Dahewu Swine is such a hybrid. It is made from the crossbreeding of Duroc pig Yunnan local pigs, and retains the foundation of 50 percent of the original species. It has been selected through several generations of high-quality pig breeds. Dahewu Pork is of good quality and has a high lean meat ratio. It is highly sought after by consumers and has a promising future in the rural breeding market. How do farmers' friends grow river pigs? The issues such as the feeding and management aspects of Dahe’s sow sow, etc., on these issues, the author will talk about the breeding technology of this pig breed.
The feeding of Dahe Black Pigs can be done with wet mixes to feed pigs. The proportion of water mixed with wet mixes is 1 to 1, and no condiment can be added. The “three settings†of feeds are timed, qualitative, and quantitative, ie fixed feeding times and times per day (five piglets, big pigs four times), daily feeding quality is generally fixed, and the number of feedings per day is limited (per time Eighty-nine points to feed.) Free drinking water after eating can improve feed utilization. In green feed ingredients, farmers can grow grass, mainly in the late fall and winter of the previous year or the spring of the same year, and they plant hn-mc excellent radicchio and hn-mc superior pods and other juicy leafy pastures. Then, in the summer and autumn, fresh grasses are used to feed the pigs. These grasses can account for 10% to 30% of the pig's diet. In the finishing period, each pig can consume approximately 80kg of grass (dry matter) in the finishing period; Under normal growth conditions, every 100 pigs need to grow 6-12 acres of juicy grasses.
For the sow's pasture supply: The sow's forage supply amount is mainly taken into account during the sow's different physiological stages.
Empty phase: feed 0.5 to 1 kg of fine material per day, 8 to 10 kg of fresh grass or 20% to 30% of corn + 10% of bran and 60% to 70% of forage hay powder. When sows are too thin, they should be supplemented. More fine material.
80 days before pregnancy: At this time, high utilization of various nutrients in feed, combined with slow growth and development of embryos, is the best time to save the fine material, can feed fine material 0.5 ~ 1kg per day, high quality forage grass Fresh grass 8 ~ 10kg.
Sows after 80 days' gestation: During the second trimester sows, that is, about 35 days before the farrowing period, the sows' diet should be appropriately increased in energy and protein, supplemented with calcium, and 20g of bone meal or 50g of fishmeal should be added to the feed daily. The fine material was increased from 0.5 to 1 kg/day to 1 to 1.5 kg/day, and high-quality forage grass was adjusted to 5 to 6 kg/day.
Sow lactation stage: nursing sows should increase the amount of concentrate feed, and appropriate calcium supplement, fine feed amount of 2.5 ~ 3kg / day, with 8 ~ 10kg of fresh grass fed. The concentrates of the nursing sows can be paired as follows: 60% corn + 30% bran + 10% sow concentrate feed; or 50% corn + 30% bran + 18% soybean cake + 2% bone meal. The feeding amount of pasture is determined according to the sow's feed intake, which can generally be 3 to 4 kg/day.
In the breeding of big river black pigs, most farmers neglect the principle of “prevention over treatment†and pay attention to the treatment of pigs. They prefer to spend “big†money on treatment and are unwilling to spend “small†money on epidemic prevention. The result is farmers. lost heavily. Therefore, in the summer and autumn, the piggery should pay attention to ventilation, and fans can be installed in the pig house to reduce the humidity and heatstroke. The vine plants outside the pig house are shaded and cooled to keep the air in the pig house fresh and suitable in temperature. In the winter, plastic film greenhouses will be used to cultivate new technologies, and the microclimate of pig houses will be continuously improved to create a good ecological environment for pig growth and development. At the same time, we must adhere to a strict disinfection system and constantly clean the environment. Conditional piggery installations prevent the biting of mosquitoes and flies and reduce the occurrence and spread of epidemics. Regularly do a good job of insect repellent and epidemic vaccination, and implement the principle of "prevention from treatment".
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