Table 6 Evaluation of the effectiveness of dietary oil in fish feed
From: Formulation of a fish feed for goldfish with natural astaxanthin extracted from shrimp waste
Statement about the intensity of skin coloura | Percentage of evaluators in agreement (%) | |
|---|---|---|
Coconut oil | Soya oil | |
Fish fed with feeds containing astaxanthin with oil (A1 or A3) were the darkest in colour | 33 | 83 |
Fish fed with feeds containing astaxanthin without oil (A2) were the darkest in colour | 57 | 6 |
Both fish groups fed with astaxanthin containing feeds (A1, A2 and A3) were darker and similar in colour intensity | 0 | 0 |
Fish fed with control feeds with oil but no astaxanthin (C2 and C4) were the darkest in colour | 8 | 11 |
Fish fed with controls without both astaxanthin and oil (C3) were the darkest in colour | 2 | – |
Any other answer | 0 | 0 |