Feed processing
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Various steps involved in Feed compounding
- Selection of locally available ingredients based on price and nutrient density.
- Quality check of raw materials.
- Formulation of balanced ration
- Weighing the ingredients according to formulation.
- Processing such as Grinding, flaking, etc.
- Uniform mixing.
- Quality check of processed feed
- Packing and storage of mash feed.
- Further processing for preparation of other forms of feed (pelletting, crumbling etc.)
Purposes of feed processing:
- To alter the physical form or particle size.
- To prevent spoilage
- To isolate specific parts of a seed or plant
- To improve palatability
- To inactivate toxins or anti nutritional factors .
Grinding
Advantages of grinding
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The particle size reduction, increases the surface area exposed to enzymes, resulting in better digestion.
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Grinding helps mixing of ingredients and prevents segregation
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Pelleting can be done only if the feed is ground uniformly
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Selectivity of feeds is not possible by the animal and so the nutrient intake will the optimum
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Palatability is improved
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Feed intake is increased
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Improves digestibility
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Improves growth rate
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Improves feed efficiency
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Consumers like uniformly ground feed
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Grinding of some ingredients contributes to ease to handling.
Types of grinding
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Coarse - sieve size 3/8, 4 and 8
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Medium - sieve size 14 and 28
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Fine - sieve size 48 and 100.
Types of mills
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Hammer mill – Impaction
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Attrition or Buer mill – cutting, crushing and shearing
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Roller mill – cutting, crushing and shearing
Hammer mill
![Complete feed plant-To grind green fodder,dry fodder and concentrates. Complete feed plant-To grind green fodder,dry fodder and concentrates.](http://14.139.56.154:82/file.php/129/lesson_50/complete_feed_plant.jpg)
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Last modified: Wednesday, 4 April 2012, 4:48 AM