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Table 5 Investigation of the effectiveness of the form of astaxanthin incorporated into 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 (%)

Fish fed with A1 (with extracted crude astaxanthin) were the darkest in skin colour

42

Fish fed with S1 (with shrimp waste) were the darkest in skin colour intensity

27

Both sets of fish fed with A1 and S1 were the darkest and had similar skin colour intensity

12

Fish fed with the C1 (no astaxanthin) were the darkest in skin colour

8

Any other answer

11

  1. aDarker skin colour = high intensity of red colour/brighter red colour