Fiskeridirektoratets skrifter. Serie Teknologiske undersøkelser: Nye registreringer
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The amino acid composition and the protein value of four selected fish meals for the young chick
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 5, No. 5, Research report, 1968)A winter herring meal, a North Sea herring meal, a scad meal and a mackerel meal were tested as supplements to a basal vegetable chick diet and were analyzed for amino acids, vitamins and the common chemical constituents. ... -
Innholdsfortegnelse Vol. 4
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;, Research report, 1965) -
A Comparative Study of Amino Acids in the Muscle of Different Species of Fish
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 3, Research report, 1962)1. The complete amino acid composition in the muscles of ten common food fishes has been investigated by microbiological methods. Each amino acid was determined simultaneously in all samples, thus making a direct comparison ... -
Vitaminer i Norsk fisk IV. Vitamin B6 og biotin i forskjellige organer fra torskefisker (Gadidae) fanget langs Norskekysten
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 12, Research report, 1965)The species cod (Gadus morrhua), coalfish (Gadus virens), ling (Molva molva) and torsk (Brosmus brosme) have been investigated. The samples were collected from newly caught fish and analysed fresh or after storage at below ... -
The Effect of Some Marine Oils and Squalene on the Plasma Cholesterol in Chicks
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 4, Research report, 1962)The effect of some fish oils on the plasma-cholesterol level of chicks were studied in eleven experiments. Soya- bean oil, margarine fat and squalene were also included in the study. Arachis oil was used as a reference in ... -
Growth Inhibitory Effect of Extracts from Milt (Testis) of Different Fishes and of Pure Protamines on Microorganisms
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 6, Research report, 1964)A method has been described for the isolation of protamine from the milt (testes) of fish, employing direct extraction of the organ with dilute sulfuric acid, followed by stepwise precipitation with ethanol. The growth ... -
The fatty acid composition of herring oils
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 13, Research report, 1965)Herring oil production in different areas of the world has been reviewed, and the possible variations of the fatty acid composition has been discussed. The literature on the determination of fatty acids in such oils has ... -
Effect of BHT (Butylated Hydroxytoluene) on the protein value of herring meal for the young rat
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 5, No. 2, Research report, 1966)The effect of BHT (butylated hydroxytoluene) on the protein quality of herring meal was studied in nitrogen balance experiments with young rats. BHT at the 0.03% level in the meal improved the protein quality of meals ... -
Studies on the radiation preservation of fish I. The Effect on Certain Vitamins in Fresh Fillets of Cod and Dogfish and in Smoked Fillets of Cod and Herring
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 10, Research report, 1964)The effect of radiopasteurization (0.3 Mrad) and radiosterilization (3.0 Mrad) on certain vitamins in canned fresh fillets of cod and dogfish and in vacuum packed smoked cod and herring, were studied. The effect of ... -
Further studies on Vitamins and the Reproductive Cycle of Ovaries In Cod (Gadus morrhua)
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 2, Research report, 1962)The relations between vitamin B6, vitamin B12, biotin and total dry matter and the reproductive cycle of the ovaries in cod has been investigated. The stage of maturation or regeneration was expressed as the percentage ... -
Free Amino Acids in Hard Herring Roe. Variation during the Ripening Process
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 7, Research report, 1963)The circlechromatografical separation method was found useful for both the qualitative and quantitative estimation of free amino acids in hard herring roe from Clupea Harengus. The following ten amino acids were detected: ... -
The fatty acid composition of cod liver oil
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 11, Research report, 1965)The fatty acid composition has been determined using group separation by thin layer partition chromatography in conjunction with gas liquid chromatography. Values are given for 41 acids as percentages of the sum varying ... -
Protein value of herring meal and some other protein concentrates of marine origin for the young rat
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 5, No. 1, Research report, 1966)Protein concentrates, mainly of marine origin, were tested in nitrogen balance experiments with young rats. Commercial herring meals produced by several methods showed only small differences in protein utilization values. ... -
Protein value of cod and coalfish and some products for the young rat
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 5, No. 4, Research report, 1968)The protein quality of cod muscle protein and of some products of cod and coalfish was determined in nitrogen balance experiments with young rats. In most of the experiments spray dried egg albumin was used as a standard ... -
Oxidative rancidification of marine oils
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 5, No. 3, Research report, 1967) -
Alpha-Tocopherol in Some Marine Organisms and Fish Oils
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 4, No. 8, Research report, 1963)A study has been made of a-tocopherol in some marine sources. Apart from commercial oils, which were of normal quality, care was taken to ensure fresh material. The a-tocopherol contents have been determined in eleven ... -
Vitaminer i Norsk fisk II. Vitaminer i forskjellige organer fra makrellstørje (Thunnus Thynnus) fanget utenfor Norges vestkyst.
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 3, No. 3, Research report, 1955)Fresh samples of different organs from tuna fish (Thunnus thynnus) were collected during the summer 1952. The samples represented 100 -150 fishes and were minced and stored at -15° C during the investigation. Niacin, ... -
A Comparative Study of Vitamins in the Trunk Muscles of Fishes
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 3, No. 8, Research report, 1959)A comparative study of vitamins in the trunk muscles of fishes is reported. The investigation comprises two separate studies. Firstly, the relation between the activity of different species and the average vitamin contents ... -
Vintersildas innhold av fett og fettfritt tørrstoff i årene 1930-1956
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 3, No. 5, Research report, 1958)Data on the content of fat and fat-free dry material of the Norwegian winterherring have been collected, based upen industrial analysis of a great number of separate catches during the years 1930-56. In the tables and ... -
Luftfrysing av sild. Undersøkelse av nødvendig frysetid
(Fiskeridirektoratets skrifter / Serie Teknologiske undersøkelser;Vol. 3, No. 9, Research report, 1958)The purpose of this work is to provide more accurate data for the calculation and design of air blast freezers for herring and similar fish.