R536 Fish Milk

R536 Categories: ,

 39,95 ex. VAT
 48,34 inc. VAT

Breed:  Swedish Red-and-White
Sample material:  Blood EDTA, Blood Heparin, Hair, Semen, Tissue


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Fish Milk (also known as Fish Odour Syndrome or Trimethylaminuria) is an unusual metabolic disorder, found mostly in Red And White cattle from Sweden, that results in increased levels of trimethylamine (TMA) in the body. TMA smells strongly of rotten fish, and cattle with Trimethylaminuria may produce milk with an unpleasant fishy taste and smell. The disorder is caused by a recessive mutation to the gene FMO3.


Chromosome: 16

Gene: FMO3

Mode of Inheritance: Autosomal Recessive

Organ: Endocrine glands

Sub-organ: Mammary glands


Year published: 2002

Clinical Features

Affected cattle produce milk containing TMA, resulting in a fishy off-flavour that can be detected even when milk is mixed in bulk.


Omia: 1360

Pubmed: 12466292