How to identify fishmeal quality? These methods are very practical
Fishmeal quality
Differences in fishmeal quality
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What does it mean??
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Quality index Grade A Grade B Grade C Unqualified
Mandatory testing Moisture % ≤10.5 10.6-11.5 11.6-12.0 ≥12.1
Crude protein % ≥64.0 63.9-62.0 61.9-61.0 ≤60.9
Sen
sor
y
properties Yellow-brown or yellowish-brown, with the normal smell of fishmeal and no off-odor or burnt duck smell, no mildew or deterioration, no caking, no adulteration or doping, no contamination, etc. Same as left Same as left Dark brown, with off-odor, caking, mildew, adulteration or doping, contamination, etc.
Microscopic examination No adulteration Obvious adulteration
Reference Crude fat % ≤10.0 ≤10.0 ≤10.0 ≥10.1
Sand content % ≤2.0 2.1-4.0 2.1-4.0 ≥4.1
Crude ash % 13.0-21.0 ≥21.1
Calcium % 2.0-5.0 ≥5.1
Phosphorus % 1.0-3.5 ≥3.6
Salt content % ≤4.0 ≤4.0
Acid value mgKOH/g ≤4.0 4.1-5.0 5.1-7.0 ≥7.0
Arsenic (calculated as total arsenic) mg/kg ≤10.0 >10.0
Lead (calculated as Pb) mg/kg ≤10 >10
Mercury (calculated as Hg) mg/kg <0.5 ≥0.5
Fluorine (calculated as F) mg/kg ≤500 >500
Cadmium (calculated as Cd) mg/kg <2.0 ≥2.0
Salmonella Not detected Detected
Total bacterial count 106 per g <2.0 ≥2.0
Aflatoxin B1 ug/kg ≤10 >10
Total mold count 103 per kg <20 ≥20
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Oh, grading. Learned something
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What does it mean??
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Quality index Grade A Grade B Grade C Unqualified
Mandatory testing Moisture % ≤10.5 10.6-11.5 11.6-12.0 ≥12.1
Crude protein % ≥64.0 63.9-62.0 61.9-61.0 ≤60.9
Sen
sor
y
properties Yellow-brown or yellowish-brown, with the normal smell of fishmeal and no off-odor or burnt duck smell, no mildew or deterioration, no caking, no adulteration or doping, no contamination, etc. Same as left Same as left Dark brown, with off-odor, caking, mildew, adulteration or doping, contamination, etc.
Microscopic examination No adulteration Obvious adulteration
Reference Crude fat % ≤10.0 ≤10.0 ≤10.0 ≥10.1
Sand content % ≤2.0 2.1-4.0 2.1-4.0 ≥4.1
Crude ash % 13.0-21.0 ≥21.1
Calcium % 2.0-5.0 ≥5.1
Phosphorus % 1.0-3.5 ≥3.6
Salt content % ≤4.0 ≤4.0
Acid value mgKOH/g ≤4.0 4.1-5.0 5.1-7.0 ≥7.0
Arsenic (calculated as total arsenic) mg/kg ≤10.0 >10.0
Lead (calculated as Pb) mg/kg ≤10 >10
Mercury (calculated as Hg) mg/kg <0.5 ≥0.5
Fluorine (calculated as F) mg/kg ≤500 >500
Cadmium (calculated as Cd) mg/kg <2.0 ≥2.0
Salmonella Not detected Detected
Total bacterial count 106 per g <2.0 ≥2.0
Aflatoxin B1 ug/kg ≤10 >10
Total mold count 103 per kg <20 ≥20
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Oh, grading. Learned something