Vitamins and the Reproductive Cycle of Ovaries in Cod (Gadus morrhua)
MetadataShow full item record
The relation between the contents of the B-vitamins pantothenic acid, riboflavin, niacin, vitamin B12 and biotin and the reproductive cycle of the ovaries in cod has been investigated. Pantothenic acid showed a unique relation, the values being very high in ovaries from juvenile fish and from mature fish in the first stages of regeneration. The highest value was 377 µg pantothenic acid per g wet weight, or 2430 µg per g dry weight, thus these values are the highest reported yet in Nature. As the ovarian development proceeds, the pantothenic acid content decreases to more normal values. The possible biological importance of this finding has been discussed. Riboflavin, niacin and biotin did not show any variations of importance, while vitamin B12 showed a definite though slighter decrease during the regenerative cycle. Chemical analysis of protein-, ash-, and water-contents have also been reported. The nutritional value of ripe ovaries or so-called «hard roe» is emphasized, and the results are discussed in relation to previous nutritional studies of cod roe.