Lipid mobilization during starvation in the rainbow trout, <i>Salmo gairdneri</i> Richardson, with attention to fatty acids

Jezierska, Barbara; Hazel, J. R.; Gerking, Shelby D.

doi:10.1111/j.1095-8649.1982.tb02872.x

Cited by 167 publications

(99 citation statements)

References 22 publications

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“…In carp after 100 days lasting experimental starvation, the glycogen level in the hepatopancreas was 1.6%, whereas the lipids were totally exhausted (Nagai and Ikeda 1971). Similar results were reported in rainbow trout (Oncorhynchus mykiss) and in pike (Esox lucius) by Jezierska et al (1982), Ince and Thorpe (1976). The situation is different in fish having energy reserves in their visceral fat e.g.…”

supporting

confidence: 76%

Pathobiochemistry of Ammonia in the Internal Environment of Fish (Review)

Smutná¹,

Vorlová²,

Svobodová³

2002

Acta Vet. Brno

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In this study, the origin and pathways of detoxication of ammonia in the body of fish are analysed. Ammonia is toxic for an organism even in trace amount. The role of direct deamination of amino acids such as histidine, serine, asparagine and glutamine is emphasized with regard to ammonia production, the functional association of transamination and deamination is reflected in a transdeamination reaction, where the central role is played by the enzyme glutamate dehydrogenase. Furthermore, less known sources of ammonia occurring during natural restoration of body cells and tissues are discussed. Particularities of biochemical processes in fish, such as the non-existence of ureosynthetic cycle along with a sudden change of environmental conditions can easily disturb the balance between production and excretion. If the detoxication abilities of fish are exceeded, ammonia acts as a toxicant, thus leading to accidental mortalities of fish.

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supporting

confidence: 76%

Pathobiochemistry of Ammonia in the Internal Environment of Fish (Review)

Smutná¹,

Vorlová²,

Svobodová³

2002

Acta Vet. Brno

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“…This observation confirmed the study by Bird et al (1993) that non-parasitic adult L. planeri relied on the larval diet and preferred to use shorter chain length FA in muscle TG. The observations in liver TG observed in naturally starved lamprey, P. marinus, are somewhat different from that reported in juvenile and adult lamprey (Whyte et al, 1993), trout (Jezierska et al, 1982) and sea bass (Delgado et al, 1994). This difference possibly suggests the existence of species specificity.…”

Section: Discussioncontrasting

confidence: 51%

Differences in the fatty acid composition of larvae and metamorphosing sea lampreys, Petromyzon marinus

Kao

Youson

Vick

et al. 2002

Comparative Biochemistry and Physiology Part B: Biochemistry an

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This study was designed to evaluate biochemical changes in the fatty acid (FA) compositions of selected lipid depot (kidney and liver) and absorption (intestine) organs in larvae and metamorphosing sea lamprey, Petromyzon marinus. Palmitic or stearic acids were generally the predominant saturated fatty acids (SFA) before and during metamorphosis, but the greatest proportion of myristic acid occurred in renal triacylglycerol (TG). Monoenes, dienes, and polyenes consist mainly of 16:1, 18:1, and 20:1, 18:2 and 20:2v6, and 18:4v3, respectively. Alterations in these predominant fatty acids occurred during lamprey metamorphosis, but depended on tissue, lipid class, and developmental status. During metamorphosis, kidney TG and phospholipid (PL) classes tended to mobilize SFA and enhance the fatty acid unsaturation, as indicated by increased unsaturatedysaturated ratio, unsaturation index (USI), and total mean chain length (MCL). There was a tendency to increase saturation in the fatty acids of liver TG and PL classes and intestine TG, FA and monoacylglycerol (MG) classes, but to increase unsaturation in the fatty acids of liver cholesteryl ester (CE), FA and MG classes and intestine PL and CE classes from larva or stage 3 to stage 7. Increased polyunsaturated fatty acids in kidney TG and PL from larvae to stage 5 transformers and intestine PL and CE from stage 3 to stage 7 transformers may reflect an osmoregulatory pre-adaptation. The presence of branched-chain SFA (BCSFA) and the odd number of fatty acids (ONFA) indicated a significant role of detritivores in the benthic larvae. Decreased abundance of BCSFA, ONFA, and 18:2 dienes occurred in the transformed intestine TG as non-trophic metamorphosis proceeded. These data suggest that sea lamprey metamorphosis may proceed in a habitat, dietary, osmoregulatory, energetic, and developmental pre-adaptation of fatty acid composition from benthic filter-feeding larvae to pelagic parasitic juveniles. ᮊ

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“…Antes do período de migração para a desova, RV DXWRUHV YHUL¿FDUDP R LQFUHPHQWR PpGLR GR FRQWH~GR lipídico da ordem de cinco vezes em machos e fêmeas. Estratégia semelhante foi registrada em outras espécies anádromas, como a truta arco-íris, Salmo gairdneri (JEZIERSKA et al, 1982) e a sardinha americana, Alosa sapidissima (LEONARD; MCCORMICK, 1999), e naquelas que realizam migrações reprodutivas dentro do mesmo ambiente, como o arenque, Clupea harengus (SLOTTE, 1999) e o atum, Thunnus thynnus thynnus (MOURENTE et al, 2002). Caula et al (2008) compararam a composição centesimal e o valor calórico de peixes marinhos e de água doce comercializados no estado do Ceará, nordeste do Brasil, concluindo que os teores de gordura e os valores energéticos são maiores em peixes de água doce.…”

Section: Discussionunclassified

Composição centesimal e valor calórico de peixes Clupeiformes na costa norte do Rio de Janeiro doi: 10.5007/2175-7925.2011v24n2p57

Awabdi¹,

Carvalho²,

Bittar³

et al. 2011

Biotemas

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ResumoO objetivo deste trabalho é fornecer informações sobre a composição centesimal e o valor calórico dos peixes Clupeiformes Chirocentrodon bleekerianus, Pellona harroweri e Lycengraulis grossidens. Os espécimes foram coletados entre 2007 e 2010 na costa norte do Estado do Rio de Janeiro. Análises bromatológicas (proteína, lipídio e matéria mineral) foram realizadas em amostras compostas; o teor de carboidrato e a energia EUXWD IRUDP FDOFXODGRV D SDUWLU GH UHODo}HV HQWUH DV YDULiYHLV $V HVSpFLHV GH SHL[HV IRUDP VLJQL¿FDWLYDPHQWH distintas em relação ao porte (comprimento total e peso), composição centesimal e energia bruta; apenas o teor de carboidrato foi similar. A espécie L. grossidens foi representada por indivíduos maiores e com teor de lipídio superior, enquanto C. bleekerianus e P. harroweri apresentaram os maiores percentuais de proteína e matéria mineral, além de valores de energia bruta mais elevados. O percentual de proteína foi diretamente proporcional ao valor de energia bruta, enquanto o percentual de lipídio apresentou relação inversa com essas duas variáveis. Este estudo servirá de base para o entendimento da seletividade alimentar de carnívoros marinhos em regiões costeiras e para a elaboração de modelos de bioenergética. Palavras-chave: Clupeiformes, Composição centesimal, Energia bruta, Oceano Atlântico Ocidental Abstract 3UR[LPDWH FRPSRVLWLRQ DQG FDORULF YDOXH RI &OXSHLIRUPHV ¿VKHV IURP WKH 1RUWKHUQ 5LR GH -DQHLUR coast.The aim of this study is to provide information on the proximate composition and caloric value of WKH &OXSHLIRUPHV ¿VKHV Chirocentrodon bleekerianus, Pellona harroweri, and Lycengraulis grossidens. The specimens were collected between 2007 and 2010 in Northern Rio de Janeiro. The bromatological analysis (protein, lipid, and mineral matter) was performed on composite samples; carbohydrate content and gross energy ZHUH FDOFXODWHG IURP UHODWLRQVKLSV EHWZHHQ YDULDEOHV 7KH ¿VK VSHFLHV ZHUH VLJQL¿FDQWO\ GLIIHUHQW LQ VL]H WRWDO length and weight), proximate composition, and gross energy; only the carbohydrate content was similar. The species L. grossidens was represented by larger individuals with higher lipid content, as C. bleekerianus and P. Biotemas, 24 (2): 57-64, junho de 2011

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Lipid mobilization during starvation in the rainbow trout, Salmo gairdneri Richardson, with attention to fatty acids

Cited by 167 publications

References 22 publications

Pathobiochemistry of Ammonia in the Internal Environment of Fish (Review)

Pathobiochemistry of Ammonia in the Internal Environment of Fish (Review)

Differences in the fatty acid composition of larvae and metamorphosing sea lampreys, Petromyzon marinus

Composição centesimal e valor calórico de peixes Clupeiformes na costa norte do Rio de Janeiro doi: 10.5007/2175-7925.2011v24n2p57

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