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The content of ascorbic acid and tocopherol in the tissues and eggs of wild Macrobrachium rosenbergii during maturation
Cavalli, R.O.; Tamtin, M.; Lavens, P.; Sorgeloos, P.; Nelis, H.J.; De Leenheer, A.P. (2001). The content of ascorbic acid and tocopherol in the tissues and eggs of wild Macrobrachium rosenbergii during maturation. J. Shellfish Res. 20(3): 939-943
In: Journal of Shellfish Research. National Shellfisheries Association: Duxbury. ISSN 0730-8000; e-ISSN 1943-6319, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Agents > Antioxidants
    Anatomical structures > Body organs > Animal organs > Animal reproductive organs
    Biological development
    Cells > Sexual cells > Eggs
    Composition > Chemical composition
    Cultures > Shellfish culture > Crustacean culture > Prawn culture
    Diets
    Natural populations
    Nutrition > Animal nutrition
    Properties > Biological properties > Sexual maturity
    Reproduction > Sexual reproduction
    Secretory organs > Glands > Endocrine glands > Animal reproductive organs > Gonads
    Secretory organs > Glands > Endocrine glands > Animal reproductive organs > Gonads > Ovaries
    Sex > Females
    Tissues
    Vitamins
    Vitamins > Vitamin C
    Vitamins > Vitamin E
    Macrobrachium rosenbergii (De Man, 1879) [WoRMS]
    Brak water; Zoet water
Author keywords
    ascorbic acid; tocopherols; Macrobrachium rosenbergii; wild; reproduction; nutrition
Auteurs  Top 
  • Cavalli, R.O.
  • Tamtin, M.
  • Lavens, P., meer
  • Sorgeloos, P., meer
  • Nelis, H.J.
  • De Leenheer, A.P.
Abstract
    Variations in the concentrations of ascorbic acid (AA) and tocopherols in association with the gonadal development of the freshwater prawn Macrobrachium rosenbergii were investigated in females captured in the Mae Klong River, Thailand. Mean ovarian AA levels ranged from 210 to 540 µg/g dry weight (dw) and were at least 11-fold higher than midgut gland (MG) levels. Variations in ovarian AA levels are believed to be related to the biosynthesis of steroid hormones, the formation of collagen, and the deposition of egg yolk compounds. alpha-Tocopherol (alpha-T) was the predominant form of vitamin E in prawn tissues and eggs. The level of alpha-T in the MG was constant, whereas in the ovaries, it ranged from 143 to 425 µg/g dw. The incorporation of a-T into the ovary was highly correlated (r² = 0.87) to ovarian lipid levels, which probably reflects the role of this vitamin as a major antioxidant agent. The present results provide further evidence of the essentiality of these vitamins in crustacean reproduction.
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