Effect of low protein-high calory or essential fatty acid deficiency diet on reproduction of rainbow trout.

Watanabe, Takeshi; Takeuchi, Toshio; Saito, Minoru; Nishimura, Kazuhisa

doi:10.2331/suisan.50.1207

Cited by 104 publications

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“…It can be concluded that this nutritional deficiency in female trout greatly affects embryonic and larval development, as previously shown in trout (Watanabe, 1982 ;Watanabe et al, 1984c) and red sea bream (Watanabe et al, 1984a,b). However, the incidence of high amounts (5.4 %) of linoleic acid in the (n-3)-deficient diet on early developmental stages cannot be excluded as it has already been reported by Yu and Sinnhuber (1976) that the growth of 0.6 g trout was depressed by high dietary levels (2.5 or 5 %) of this fatty acid.…”

Section: Introductionmentioning

confidence: 59%

“…It can be concluded that only a long period of (n-3) fatty acid deficiency, one year before spawning in this study, 6 months according to Watanabe (1982), is able to deeply alter egg lipids and affect embryonic development. In contrast, it is not clear why a negative effect on egg incubation-was reported in trout, although no changes were observed in the liver and egg polar lipid composition (Watanabe et al, 1984c). Furthermore, our results show that early (n-3) fatty acid deficiency caused a high larval mortality, as reported by Lee et al (1967) and Yu and Sinnhuber (1975) Nous pouvons en conclure que les acides gras (n-3) et particulièrement les acides gras 22:6 (n-3) jouent un rôle prépondérant dans le développement embryonnaire de la truite.…”

Section: Introductionmentioning

confidence: 67%

“…The absence of changes in the quality of the eggs produced by trout fed ethyl linoleate for three months before spawning (Watanabe et al, 1984c) is likely related to the high level of (n-3) fatty acids remaining in the egg polar lipids (19 vs 34.5 % in control fish). Similar changes in egg composition were observed by Léger et al (1981b) after feeding adult trout a (n-3) fatty acid-deficient diet three months before the spawning period.…”

Section: Introductionmentioning

confidence: 99%

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Incidence of (n-3) essential fatty acid deficiency on trout reproductive processes

Leray¹,

Nonnotte²,

Roubaud³

et al. 1985

Reprod. Nutr. Dévelop.

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Summary. A feeding experiment was conducted on rainbow trout broodstock for one year to investigate the influence of the quality of dietary lipids on egg and fry fatty acid composition, embryonic development and hatching efficiency. The broodstock were fed either a commercial control diet or a (n-3) fatty acid-deficient diet ; their liver, eggs and fry were analysed to determine the fatty acid composition of their neutral and polar lipids. The fatty acid pattern in liver, eggs and fry was markedly different due to the qualitative difference of the dietary lipids. The most striking difference was the low amount of 22:6 (n-3) and the high levels of 20:4 (n-6) and 22:5 (n-6) in phospholipids of fish receiving the (n-3)-deficient diet containing a high level of 18:2 (n-6). While fertilization efficiency was equivalent in the first two days of development, whatever the diet, two peaks of mortality were observed, one at day 8 and the other at day 22 after fertilization, during the time the eggs produced by the deficient fish were incubated. A shorter period of vitellus resorption (50 vs 65 day) was observed in (n-3)-deficient alevins as compared to controls.

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Section: Introductionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

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Incidence of (n-3) essential fatty acid deficiency on trout reproductive processes

Leray¹,

Nonnotte²,

Roubaud³

et al. 1985

Reprod. Nutr. Dévelop.

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“…It was previously demonstrated [30] that a combination of n-3 and n-6 fatty acids is important for normal growth and survival of Catla fry with a 1:1 mixture of sunflower oil and cod liver oil. Essential fatty acid deficiency has been reported to affect fecundity and hatching success in rainbow trout [49]. Efficacies of two diets containing corn oil and fish oil for rainbow trout reared at 8°and 18°C were compared [10] and it was shown that a dietary n-3/n-6 ratio affects egg fatty acid composition.…”

Section: Discussionmentioning

confidence: 99%

Effect of dietary supplementation of fatty acids and vitamins on the breeding performance of the carp Catla catla

et al. 2001

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-Five isonitrogenous diets (∼33% crude protein) were fed to the brood female carp, Catla catla (weighing 3.0 to 5.5 kg), for a period of 93 days in order to observe their breeding performance in earthen ponds. Diet-I (control) contained only basic ingredients like rice bran, groundnut oil cake, roasted soybean meal, fish meal and mineral mixture; diet-II contained added vitamins; diet-III contained added vitamins and vegetable oil (rich in n-6 polyunsaturated fatty acids, PUFA); diet-IV contained added vitamins and fish oil (rich in n-3 PUFA); and diet-V contained added vitamins and a mixture of vegetable and fish oils. The results showed that nutritional quality of the diet considerably influenced breeding performance in the species. The total number of matured females was the highest in the diet-V group and maturity was advanced by 35 days in this group compared to the control. In diet-III and diet-V groups, all the maturated females bred fully and the relative fecundity was increased significantly in diet III, IV and V. The maximum (73.4%) fertilisation rate was observed in the diet-V group, followed by 61.3%, 56.8%, 49% and 22.7% in diet-I, diet-IV, diet-III and diet-II groups respectively. Most of the eggs in the diet-II treatment group remained immature. The various data thus obtained suggest that dietary supplementation of both n-3 and n-6 PUFA, is essential to improve gonadal maturation, breeding performance and spawn recovery in the Catla female broodstock. diet / fatty acid / broodstock / breeding performance / Catla Reprod. Nutr. Dev. 41 (2001) 365-375 365

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“…On the other hand, the distribution of fatty acids in the total lipid of trout sperm is greatly affected by diet (Watanabe et al 1984). According to Baynes and Scott (1982), both the fatty acid composition and fertilizing capacity after cryopreservation differ between trout fed two different diets.…”

Section: Introductionmentioning

confidence: 99%

Plasma membrane of trout spermatozoa: I. Isolation and partial characterization

Labbé

Loir

1991

Fish Physiol Biochem

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AbslractThe plasma membrane from spermatozoa of rainbow trout was isolated by four techniques: sonication, hypotonic shock, mechanical homogenization after freeze-thawing, and nitrogen cavitation, in combination with continuous sucrose gradient centrifugation. Nitrogen cavitation (900 PSI, 20 min equilibration at 4°C) was the most effective technique.Following nitrogen cavitation, four bands were recovered in the sucrose gradient at densities = 1.03, 1.05, 1.09 and 1.15 g/ml. Elect ron microscopy revealed membrane vesicles of various sizes in bands 1 to 3, while enzyme analysis revealed a 3.9 to 5.5-fold enrichment in 5'-nucleotidase and little contamination by lactate dehydrogenase (cytosol) and succinic dehydrogenase (mitochondria). Lipid analysis of bands 1 and 2 indicated a 6 to 7-fold enrichment in cholesterol and a cholesterol: phospholipid ratio of 0.59-0.70. Seven classes of phospholipids were present in bands 1-3 with no significant differences observed among bands. These data indicate that the vesicles (in bands 1 and 2) obtained after nitrogen cavitation are primarily plasma membranes. Membranes in band 3 appear to be slightly contaminated with nuclear membranes.Most of the plasma membrane proteins were acidic to neutral. The 2 main membrane proteins were 42 and 30 Kilodaltons.

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Effect of low protein-high calory or essential fatty acid deficiency diet on reproduction of rainbow trout.

Cited by 104 publications

References 0 publications

Incidence of (n-3) essential fatty acid deficiency on trout reproductive processes

Incidence of (n-3) essential fatty acid deficiency on trout reproductive processes

Effect of dietary supplementation of fatty acids and vitamins on the breeding performance of the carp Catla catla

Plasma membrane of trout spermatozoa: I. Isolation and partial characterization

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