The feeds are usually subject to following 3 types of tests for quality evaluation; 1. Physical, 2. Chemical and 3. Biological.
- Physical evaluation is easy but rough in nature. One must be highly trained to identify the changes in the nature of the raw material/feeds. It will be on the basis of Colour, Size, Homogeneity, Smell, Taste, Touch, Sound.
- Chemical evaluation requires an analytical laboratory for the precise estimation of nutrient contents and contaminants is of utmost importance.
- Biological evaluation of the feeds involve the use of animals, specialized persons to conduct the digestion and metabolism trails on the various species of livestock and poultry. These methods are time consuming.
For more details please download the attachment- PPT.
