Open Access
Table 3.
Comparable measurements of the level of ammonia and TVN in the hydrolyzed feather meal, feather meal and blood meal
| Feed type | Measurement parameters | Ammonia and TVN level | |
|---|---|---|---|
| minor | maximum allowable | ||
| Hydrolyzed feather meal | ammonia (color) | yellow | orange |
| TVN, mg 100 g−1 | 85–300 | >300 | |
| Feather meal | ammonia (color) | yellow | orange |
| TVN, mg 100 g−1 | 85–105 | >130 | |
| Blood meal | ammonia (color) | yellow | orange |
| TVN, mg 100 g−1 | 40–105 | >130 | |
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