Two kinds of fattening methods commonly used in pigs

(1) Straight line fattening method

Straight line fattening method is to give rich nutrition from 20 to 100 kg, and does not reduce the material in the medium term, so that it can grow sufficiently to obtain a higher daily gain, and the body weight is required to reach 90-100 kg at 4 months. The feeding method is as follows:

First, fattening piglets must choose two or three varieties of hybrid piglets, which require normal development. The weight of the group aged 60-70 days will reach 15-20 kg, which is healthy and disease-free.

Second, 7 to 10 days before the start of fattening, according to the variety, weight, strength and weakness of the column, castration, deworming, epidemic prevention.

Third, the formal fattening period is 3 to 4 months, and the daily weight gain is 1.2 to 1.4 kg.

Fourth, the nutritional level of the diet requires the early stage (20-60 kg), the crude protein per kg of food contains 16-18%, the digestion energy is 3.1-3.2 mega-calorie, the later stage (61-100 kg), the crude protein 13-14 %, digestion energy 3 ~ 3.1 mega-cards, while paying attention to feed a variety of combinations and amino acid, minerals, vitamins supplement.

Fifth, feed 2 to 3 meals a day, free to eat, feed 1.2 to 2.0 kg per day in the early period, 2.1 to 3.0 kg in the later period. The concentrate is fed dry and wet, the green material is fed, the water is free to drink, the pig pen is kept dry and clean, the summer is to be protected, the temperature is lowered, the mosquito is repellent, and the doors and windows should be kept warm in winter to keep the pig house quiet.

(2) Pre-attack limit fattening method

In the past, pigs were raised and rushed for 1 to 2 months before the slaughter. As a result, the pigs produced fat. This article comes from the pig farm power network. This fattening cannot meet the needs of today's people for lean meat. A fattening method with a pre-attack limit must be used to increase lean meat production. Feeding method before and after the attack: Before the 60 kg, the piglets use high-energy, high-protein diets, 16-18% crude protein per kg of mixture, 3.1-3.2 mega-cards of digestive energy, and 2 to 3 meals per day. Every meal is free to eat, with saturation, try to give full play to the advantage of early growth of piglets, and require daily weight gain of 1 to 1.2 kg or more. In the 60-100 kg stage, medium energy, medium protein, about 13% to 14% of crude protein per kg of feed, 3 to 2.9 mega-cards of digestible energy, two meals a day, limited feeding, only 80% per day. The amount of nutrients to reduce fat deposition requires a daily gain of 1.2 to 1.4 kg. In order not to starve the pigs, the proportion of raw materials can be increased in the feed so that the pigs can both eat and not get fat.