How to determine the pulverization fineness of feed pellets?
Crushing is one of the important processes in the animal feed pellet processing and production process (receiving and cleaning of raw materials, crushing, ingredients, mixing, granulation, packaging), which not only affects the production efficiency of the subsequent processes. It also affects the nutritional value of products, processing costs, animal performance and air environment.
The crushing particle size of feed, the crushing output and the processing cost all determine the choice of crushing process. The size of feed material's crushing particle size directly affects the crushing process and animal growth performance. Within a certain range . The smaller the crushing particle size. The more it can improve the animal's palatability and production performance, so in the feed processing. According to the requirements of animals of different breeds or different physiological stages on feed pellet size. Use reasonable crushing equipment and design the best crushing process. Operate the crushing equipment correctly. In order to achieve the most suitable nutritional effect.
The fineness of different animal feed crushing is appropriate, is the finer the better?
1. Chicken feed pellets
Chicken feed should not be too fine, because chicken likes to eat pellets or broken grains, and can be used in combination with thickness. Rice and broken rice can be directly added to the mixer in granular form. The crushing fineness of wheat and barley should be less than 2.5 mm. Corn, brown rice and bean cake should be processed into powder. When the laying hens need soft shell eggs for calcium supplementation, it is ideal to feed granulated calcium, that is, to grind limestone, shells, etc. into sorghum-sized granules, and then add it at the last feeding every night. The granular calcium stays in the chicken body for a long time, which is beneficial to the absorption and utilization of the chicken body, so the calcium supplementation effect is good.
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2. Pig feed pellets
Piglet feed is better prepared with special pellet feed or pellet feed. Legumes and other energy feeds can be cooked and fed. Piglets under 25 kg can be fed with general pig feed; fine crushing of pig feeds over 25 kg Degree can be controlled within 2 mm. Feed the pig feed as finely as possible.
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3. Ruminant feed pellets such as cattle and sheep
Crushed fineness of fine feed for cattle and sheep can be more than 2 mm, because cattle can ruminate, a little coarser feed is conducive to rumination and improve feed digestibility. The feed for old cattle and sheep can be crushed to within 1 mm to facilitate digestion.
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4. Livestock and poultry feed pellets
The crushing fineness of feed not only considers the types of livestock and poultry, but also considers not to crush the fat-rich grain feeds such as corn and oats, and store them for too long to avoid spoilage.
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