Marine Fat Digestibility of its Fatty Acids in Young Calves

Flatlandsmo, Knut

doi:10.1186/bf03548580

Cited by 7 publications

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“…Some types of milk replacer sold in Norway contain marine fat. A brief communication describing how young calves digest the fatty acids in marine fats has been published previously (Flatlandsmo 1972) Determination of the digestibility of individual fatty acids requires complete extraction and quantitative determination of each fatty acid both in feed and faeces. The present paper deals with the lipid composition of the milk replacers, as well as the analytical methods used for lipid extraction and fatty acid determination.…”

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Marine Fat Fed to Young Calves

Flatlandsmo¹

1973

Acta Vet Scand

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Marine fat fed to young calves. I. Con tent and distribution of fatty acids in ingested and excreted fat . Acta Yet. scand, 1973, 14, 666-672. -Fish oils hydrogenated to melting points of 31-33 or 38-40 •C were examined as fat sources in milk replacers, soya lecithin being used as an emulsifying agent. Analyses performed on gas and thin layer chromatography showed a total fatty acid content of 68.2 % in the lesser hydrogenated and 58.7 % in the more hydrogenated fat. As much as 89 % of the total fatty acids were found in the triglyceride fraction of the former , and 75 % in the latter.Diglycerides and cholesterol were measured together. Although 11 % of the total fatty acids was found in this fraction in the more hydrogenated fat, diglycerides and cholesterol were completely absent in the lesser hydrogenated fat.Eight different samples of faeces originating from a balance experiment with calves w ere extracted by a modified Folch method and also by the Stoldt method. Both methods yielded similar total lipid contents, but the Folch method gave a considerably higher y ield of fatty acids, particularly the longer chained ones.

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Marine Fat Fed to Young Calves

Flatlandsmo¹

1973

Acta Vet Scand

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Myocardial alterations resulting from feeding partially hydrogenated marine oils and peanut oil to rats

Ackman¹

1974

Lipids

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Myocardial alterations were observed in 5 groups of rats fed diets containing 20% fat for 16 weeks. The incidence was comparable to that from other studies and uniform at 6/20 in hearts from rats fed: partially hydrogenated herring oil to give dietary levels of either 16.7% or 4.6% 22∶1; partially hydrogenated redfish/flatfish oil to give 4.5% 22∶1 in the dietary fat; and peanut oil (of unknown origin) containing 0.1% 22∶1. The incidence was 9/20 in the hearts of rats fed an unrefined and unprocessed redfish oil at a dietary level of 16.0% 22∶1 in fatty acids.

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Docosenoic acids in dietary fats

Beare-Rogers¹

1977

Progress in the Chemistry of Fats and other Lipids

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Marine Fat Digestibility of its Fatty Acids in Young Calves

Cited by 7 publications

References 1 publication

Marine Fat Fed to Young Calves

Marine Fat Fed to Young Calves

Myocardial alterations resulting from feeding partially hydrogenated marine oils and peanut oil to rats

Docosenoic acids in dietary fats

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