Detailed Explanation of Key Points for Straight-Line Fattening Technology in Pig Farming
(1) Dry feed: According to the feed formula, mix cornmeal, soybean cake, wheat bran, additives, bone meal and salt separately, stirring three times repeatedly, then bag for later use. A small amount of distillers' grains can also be added during feeding, and green fodder should be supplemented in appropriate amounts in spring, summer and autumn.
(2) Cool water: In winter, provide water once at regular times after feeding; in summer and autumn, keep the water trough filled at all times so pigs can drink freely, but pay attention to hygiene and replace the water at any time.
(3) Multiple feedings: After piglets are weaned and placed in the pen, feed them at fixed times and in fixed amounts, with 0.6-0.8 kg of mixed concentrate per pig per day, increasing by 0.1 kg every 10 days. For young pigs aged 2-4 months, feed small amounts frequently, four times a day; for those aged 5-6 months, feed 3 times a day.
(4) Straight-line fattening: From weaning and penning of piglets to fattening and marketing, use concentrate for fattening, keep them in pens, do not graze them and do not let them exercise. With this method, two batches of pigs can be marketed per year.
(5) Flat-ground feeding: To save expenses and trough materials, if there are many pigs and the shed is large, a fixed area on the cement exercise yard can be used as a feeding area, with the mixed feed scattered on the ground for the pigs to eat freely. During feeding, observe the pigs' eating conditions; if diseased feed is found, mark it and isolate and treat promptly.
(6) Thick bedding: This mainly refers to using straw bedding on the pig bed inside the pig house in winter for cold protection. At the same time, pigs should be trained to defecate and urinate at fixed points, with three-point positioning, keeping the house warm and dry (above 5°C) and well ventilated in summer.
(7) Sleeping close together: Let the pigs lie fully occupy the pen and do not leave extra idle space for them. In this way, after eating their fill, the pigs do not move and just lie in the pen resting and sleeping, which helps with weight gain.