Key Points and Methods for Feather Meal Quality Control Explained
Feather Meal Quality Control
Recently our factory received some feather meal, but the color and particle size are not consistent from batch to batch. And the measured indicators are also unstable. Roughly what range should the ash content be in? I wonder what kind of feather meal everyone accepts? Recently we had very heavy snow here, and now it has melted. The supplier says it is because the weather is too humid. Could an expert who has studied feather meal help explain this problem for me? Thank you!
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Different feather types and different processes produce products with greatly differing appearance and nutritional composition. The ash content of pure water-washed broiler feather meal should be 2-3%, while that made from water-washed duck feathers is lower in ash. If the color differs, it indicates differences in drying, processing temperature and time, as well as the freshness of the raw material; particle size is also related to the process. Humid weather increases drying time, and the color will be somewhat redder.
Products made from sun-dried dry feathers are blackish in color, with ash content reaching 7-10%; better to use less of them.
You can look for finely composite-processed products, such as some enzymatically hydrolyzed products, which are relatively stable in quality and also higher in nutritional value.
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Different feather types and different processes produce products with greatly differing appearance and nutritional composition. The ash content of pure water-washed broiler feather meal should be 2-3%, while that made from water-washed duck feathers is lower in ash. If the color differs, it indicates differences in drying, processing temperature and time, as well as the freshness of the raw material; particle size is also related to the process. Humid weather increases drying time, and the color will be somewhat redder.
Products made from sun-dried dry feathers are blackish in color, with ash content reaching 7-10%; better to use less of them.
You can look for finely composite-processed products, such as some enzymatically hydrolyzed products, which are relatively stable in quality and also higher in nutritional value.