Effect of diet composition on maturation rate of female Atlantic salmon<i> (Salmo</i><i> salar)</i> during gonadal maturation

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datacite.alternateIdentifier.citationAQUACULTURE,Vol.582,2024
datacite.alternateIdentifier.doi10.1016/j.aquaculture.2023.740513
datacite.creatorPerez Atehortua, Maritza
datacite.creatorHernandez, Adrian J.
datacite.creatorRisopatron, Jennie
datacite.creatorFarias, Jorge
datacite.creatorVillalobos, Elias Figueroa
datacite.creatorValdebenito, Ivan
datacite.date2024
datacite.subject.englishBroodstock nutrition
datacite.subject.englishCommercial diets
datacite.subject.englishFish meal
datacite.subject.englishFish oil
datacite.subject.englishVegetable meals
datacite.subject.englishVegetable oils
datacite.titleEffect of diet composition on maturation rate of female Atlantic salmon<i> (Salmo</i><i> salar)</i> during gonadal maturation
dc.date.accessioned2024-05-27T18:27:24Z
dc.date.available2024-05-27T18:27:24Z
dc.description.abstractThe influence of different diet formulations during gonadal maturation on reproductive efficiency and embryo quality in Atlantic salmon was investigated. Four diets were compared: Diet 1 contained exclusively marineorigin protein and lipid ingredients, Diet 2 involved substituting 65% of the protein and 51% of the lipid by terrestrial animal and vegetable sources, Diets 3 and 4 were commercial diets. The results showed a higher number of spawned females in the groups of fish fed with diets 1 (73.3%) and 2 (66.7%) than those fed with diets 3 (53.3%) and 4 (50%). Spawning weight and total fecundity did not differ between diets, but a strong correlation was found between these variables, independent of diet. There were no significant differences in zootechnical parameters, but the groups of fish fed the commercial diets tended to have greater weight and length. Oocyte diameter did not differ, but percent hydration was statistically different between groups fed diets 2 and 3. Although there was no difference in embryonic malformations between diets, the presence of microphthalmia correlated negatively with oocyte diameter and percent hydration in embryos obtained from the group of fish fed with Diet 3. Blastomere symmetry and survival at 280 ATU showed statistical differences between diets 3 and 4. Using high-nutritional-value marine ingredients (Diet 1) during gonadal maturation improves reproductive performance in female Atlantic salmon. Enhancing fish broodstock nutrition through targeted research can optimize reproductive success, increase yields, and promote sustainable aquaculture practices.
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/5815
dc.language.isoen
dc.publisherELSEVIER
dc.sourceAQUACULTURE
oaire.resourceTypeArticle
uct.indizacionSCI
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