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Effect of dietary tryptophan on blood and plasma parameters of striped bass Morone saxatilis, exposed to acute stressors

dc.contributorthe Universidad Autónoma de Baja California (UABC-0379), Consejo Nacional de Ciencia y Tecnología (CONACyT) (INFRA-316812)en-US
dc.creatorCabanillas-Gámez, Miguel
dc.creatorLópez, Lus M.
dc.creatorBardullas, Ulises
dc.creatorEspinoza-Villegas, Rosa E.
dc.creatorTrue, Conal D.
dc.creatorGalaviz, Mario A.
dc.date2022-08-31
dc.date.accessioned2022-09-26T20:21:02Z
dc.date.available2022-09-26T20:21:02Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol50-issue4-fulltext-2929
dc.identifier10.3856/vol50-issue4-fulltext-2929
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/209765
dc.descriptionStriped bass, Morone saxatilis, is a marine species that belongs to the Moronidae family, which has great recreational and commercial importance and high production potential for human consumption. This research examines two acute stress factors that can be frequent in fish production units: a) handling is carried out constantly due to maintenance needs, size separation, growth evaluation, and health state, and b) hypoxia likely occur as the culture tank biomass, temperature, and fish metabolic rate increase. Juvenile fish (initial body weight 200 ± 3.0 g) were distributed in 110 L tanks and fed one week with different dietary tryptophan (Trp) levels: CD0.5 (0.5%), D1.0 (1.0%), D1.5 (1.5%) and D2.0 (2.0%). The fish were then exposed to stress by handling (5 min) or hypoxia (45 min). After that, blood hematocrit (Hct), hemoglobin (HB) and plasma cortisol, glucose (GLU), lactate (LACT), total protein (TP), albumin (AL), and globulin (GLOB) were analyzed, and AL/GLOB ratio was calculated. All analyzed parameters showed great sensitivity to acute stressors. Hypoxia increased Hct, cortisol, and GLU and decreased HB and LACT. Handling decreased HB and TP and increased GLU and LACT. D1.0 and D1.5 prevented Hct and LACT disturbance. D1.5 Trp prevented HB disturbance. All Trp supplemented diets prevented GLU change under hypoxia and TP change after handling. The results suggest that Trp played a role in M. saxatilis homeostasis restoration under acute stress.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol50-issue4-fulltext-2929/1616
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol50-issue4-fulltext-2929/2341
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol50-issue4-fulltext-2929/2342
dc.rightsCopyright (c) 2022 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 50, No 4 (2022); 529-540en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 50, No 4 (2022); 529-540es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectMorone saxatilis; acute stress; tryptophan; striped bass; handling; hypoxia; fish cultureen-US
dc.titleEffect of dietary tryptophan on blood and plasma parameters of striped bass Morone saxatilis, exposed to acute stressorsen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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