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Frémont L, Léger C, Petridou B, et al. Effects of a (n-3) polyunsaturated fatty acid-deficient diet on profiles of serum vitellogenin and lipoprotein in vitellogenic trout (Salmo gairdneri). Lipids. 1984;19(7):522-8doi: 10.1007/BF02534485.
Frémont, L., Léger, C., Petridou, B., & Gozzelino, M. T. (1984). Effects of a (n-3) polyunsaturated fatty acid-deficient diet on profiles of serum vitellogenin and lipoprotein in vitellogenic trout (Salmo gairdneri). Lipids, 19(7), 522-8. https://doi.org/10.1007/BF02534485
Frémont, L, et al. "Effects of a (n-3) polyunsaturated fatty acid-deficient diet on profiles of serum vitellogenin and lipoprotein in vitellogenic trout (Salmo gairdneri)." Lipids vol. 19,7 (1984): 522-8. doi: https://doi.org/10.1007/BF02534485
Frémont L, Léger C, Petridou B, Gozzelino MT. Effects of a (n-3) polyunsaturated fatty acid-deficient diet on profiles of serum vitellogenin and lipoprotein in vitellogenic trout (Salmo gairdneri). Lipids. 1984 Jul;19(7):522-8. doi: 10.1007/BF02534485. PMID: 21344281.
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Lipids. 1984 Jul;19(7):522-8. doi: 10.1007/BF02534485.

Effects of a (n-3) polyunsaturated fatty acid-deficient diet on profiles of serum vitellogenin and lipoprotein in vitellogenic trout (Salmo gairdneri).

Lipids

L Frémont, C Léger, B Petridou, M T Gozzelino

Affiliations

  1. Station de Recherches de Nutrition, C.N.R.Z.-I.N.R.A., 78350, Jouy-en-Josas, France.

PMID: 21344281 DOI: 10.1007/BF02534485

Abstract

During the 6 months of vitellogenesis, 3-year-old female trout (Salmo gairdneri) were fed either an enriched (E) or an (n-3) polyunsaturated fatty acid (PUFA)-deficient (D) diet; serum vitellogenin (VG) and lipoproteins (d<1.21 g/ml) were analyzed at the third month of vitellogenesis (September) and at ovulation (December). The serum content of high density lipoproteins (HDL), the major protein class, maintained a mean value of 1500 mg/dl at both stages and with both diets. On the contrary, very low density lipoproteins (VLDL) were 90% higher during vitellogenesis than at spawning time, whereas excess vitellogenin circulated at this period (6580 mg/dl serum with diet E). The diet deficient in (n-3) lowered serum vitellogenin content by 16% in September and by 26% in December. The degree of (n-3) PUFA incorporation moderately decreased in low density lipoproteins (LDL) and in HDL with the (n-3)-deficient diet. The effect was more pronounced for 20∶5. On the other hand, essential 22∶6 was incorporated into vitellogenin at the same rate in September as in December with diet E (23% and 25%, respectively), whereas after a 3-month deficiency, the percentage fell to 12%; this percentage rose again to 19% at spawning time. These findings show that, although stored (n-3) PUFA were not exhausted after a 6-month dietary deficiency, the incorporation of essential fatty acids (EFA) into vitellogenin during the early stages of oogenesis was low, suggesting changes in egg composition that may influence hatching.

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