cod liver oil

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cod liver oil

 
partially destearinated, fixed oil from fresh livers of Gadus morrhua and other fish of the family Gadidae; used as a source of vitamins A and D.

cod liv·er oil

(kod liv'ĕr oyl),
The partially destearinated fixed oil extracted from the fresh livers of the codfish (Gadus morrhuae) and other species of the family Gadidae, containing vitamins A and D; used as a supplementary source of vitamins A and D.

cod liver oil

An oil extracted from cod liver, which is rich in n-3 fatty acids, in particular eicosapentaenoic acid (EPA); 10 grams of cod liver oil contributes 1 gram of EPA to the diet.

cod liver oil

an oil pressed from the fresh liver of the cod and purified. It is one of the best-known natural sources of vitamin D, and a rich source of vitamin A. Because cod liver oil is more easily absorbed than other oils, it was formerly widely used as a nutrient and tonic, but it is rarely used today since more efficient sources are available.
The oil has a fishy odor, especially in pork, when the animals are fed on cheap grades of the oil before slaughter. The fat is most tainted and is discolored brown.
The oil gives its name to a form of aspiration or lipid pneumonia caused by overzealous and inefficient oral dosing of cats with the oil.

cod liver oil poisoning
premixed animal feeds in which cod liver oil has been incorporated are damaged if they are exposed to air. The oil rancidifies and the oxidation destroys the vitamin E in the feed. Cod liver oil also contains a muscle damage agent. Excessive supplementation in young puppies and kittens can also lead to hypervitaminosis A and D.