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From between 9 and 14 weeks, when the piglets exit the transition phase, the fattening phase begins. It lasts until the pigs are transported to slaughter when they weigh between 85 and 170 kg (All this must happen under 6 to 7 months for maximum profitability). The feed you offer your pigs should be high in protein, followed by foods that provide energy, fat, some fibre, as well as vitamins and minerals, to help them gain the most weight possible. Given that the cost of feed is the primary production expense at the fattening stage, farmers' major goal is to attain a decent feed/kg of meat conversion rate.
To fatten pigs effectively, their nutritional needs to contain 2400 to 2500 kcal of calories, 16 to 23 per cent crude protein, 3 per cent fat, 5 per cent crude fibre, and 0.4 to 0.5 per cent each of calcium and phosphorus (P).
Corn/maize, wheat, sorghum, brewer's waste, tallow, barley, rice, cassava, and other readily accessible carbohydrates can be used as pig energy sources. You may include sunflower meals, full-fat soya beans, and even tallow as fats.
Soybean meal, fish meal, blood meal, black soldier flies, fermented sweet potato vines, Azolla, commercial protein concentrates like those from Grobel concentrates Kenya, cotton seed meal, canola meal, and other high-quality protein sources that are readily available to you are some of the good protein sources for your pigs.
Pig Fattening Formulation for Pig weighing between 25 Kgs To 80 kg
To make 100 kg of fattening feed for pigs weighing between 25 and 80 kg, you will need 68.2 per cent of the feed to be energy-giving food, which is 68.2 kgs out of 100 kgs of the feeds, this could come from grounded corn/maize, sorghum, barley, wheat, or any other carbohydrate feeds available to you.
Proteins should account for 25 per cent of overall diets. That means, 25 kilograms out of 100 kilograms should be protein. This protein can be derived from soybean meal, fish meal, blood meal, canola meal, cotton cake meal, black soldier flies, or any other protein source. If you use protein concentrates, read the instructions carefully because they contain more protein than the above-mentioned protein sources.
Dietary fibre should account for 6% of total feeds, which translates to 6 kgs per 100 kgs. Fibre may be obtained from a variety of sources, including wheat bran, maize bran, rice bran, and so on.
This is the most basic approach to fattening your pigs. The supply of nutrients varies by place; for example, one area may have easy and affordable access to fish meals for proteins, but another may have easy access to soybean meal or cotton seed cake. In either case, utilise what you have, but it should be of high quality. If the quality of the feed on the market is poor or cannot be trusted, using concentrates will be the best alternative for your pigs.
Summary Of Formulation
To Make 100 Kgs of feeds for fattening your pigs you will need;
68.2 Kgs energy-giving food such as (maize, corn, sorghum, barley, wheat e.t.c)
25 Kgs of Protein giving feeds such as (Soybean meal, cotton seeds cake, canola meal, black soldier flies, fish meal e.t.c)
6 Kgs of dietary fibre from (wheat bran, rice bran, maize bran e.t.c)
