Technical points of straight-line fattening method

The first fattening piglet should select binary or ternary crossbred pigs with normal development, with a weight of 15 to 20 kg or more at the age of 60 to 70 days, healthy and disease-free. 7 to 10 days before the second finishing, according to breed, weight, strength, castration, deworming, epidemic prevention. The third formal fattening period lasts 3 to 4 months and requires a daily gain of about 1.3 kg. The fourth dietary nutrition level requires that the early stage (20 to 60 kg), diet contains 17% crude protein, digestible energy 3.1 Mcal, late stage (61 to 100 kg), crude protein 13 to 14%, digestible energy 3 to 3.1 Mcal, and pay attention to various combinations of feed and amino acids, minerals and vitamins. The fifth feeding 2 to 3 meals a day, ad libitum, feeding 1.2 to 2 kg a day in the early stage, 2.1 to 3 kg in the late stage. Dry and wet feed concentrate, raw feed green feed, free drinking water, keep the pen dry, clean, quiet, pen temperature appropriate.