Effects of temperature and photoperiod on glucose and vitellogenin hemolymph concentrations in crayfish Cherax quadricarinatus (van Martens 1868)
[The present study is a part of a research on main factors involved in reproduction of crayfish (Cherax quadricarinatus).Glucose concentration in hemolymph was significantly higher in subjects reared at 28 deg C and with a photoperiod of 14 h of light compared to the ones reared at 20 deg C with a p...
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Published in | Italian journal of animal science Vol. 2; no. 1S; pp. 634 - 636 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Taylor & Francis Group
01.01.2003
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ISSN | 1594-4077 1828-051X |
DOI | 10.4081/ijas.2003.s1.634 |
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Abstract | [The present study is a part of a research on main factors involved in reproduction of crayfish (Cherax quadricarinatus).Glucose concentration in hemolymph was significantly higher in subjects reared at 28 deg C and with a photoperiod of 14 h of light compared to the ones reared at 20 deg C with a photoperiod of 12 h of light. By electrophoresis, four HDL (High-Density Lipoprotein) (170, 177, 196 and 208 kDa) polypeptides during vitellogenin maturation were identified in hemolymph. Therefore, glucose and vitellogenin concentration in hemolymph can be utilized as indicators of ongoing ovarian maturation process.]
La presente ricerca si inquadra nello studio dei principali fattori che intervengono nella fase riproduttiva del gambero australiano (Cherax quadricarinatus). La concentrazione di glucosio nell´emolinfa è risultata significativamente più alta nei gamberi allevati alla temperatura di 28 gradi C e con un fotoperiodo di 14 h di luce rispetto agli animali allevati alla temperatura di 20 gradi C e con un fotoperiodo di 12 h di luce. L´analisi elettroforetica ha consentito di evidenziare la presenza nell´emolinfa di quattro polipeptidi HDL (High-Density Lipoprotein) (170, 177, 196 e 208 kDa) durante la fase di maturazione delle vitellogenine. I dati raccolti nel presente studio indicano che la concentrazione di glucosio e vitellogenine nell´emolinfa possono essere utilizzati come indicatori del processo di maturazione degli ovari dei gamberi |
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AbstractList | The freshwater crayfish Cherax quaricarinatus has been recently introduced in several countries world-wide. From a practical point of view there is a growing interest in the biology of this species. Nevertheless, there is a paucity of scientific information concerning the reproduction of this species and the effects of environmental factors which occur during ovarian maturation (Sagi et al., 1996). In tropical crustacean species, the reproduction cycle is very short compared to the European crayfish native species and it occurs several times per year... [The present study is a part of a research on main factors involved in reproduction of crayfish (Cherax quadricarinatus).Glucose concentration in hemolymph was significantly higher in subjects reared at 28 deg C and with a photoperiod of 14 h of light compared to the ones reared at 20 deg C with a photoperiod of 12 h of light. By electrophoresis, four HDL (High-Density Lipoprotein) (170, 177, 196 and 208 kDa) polypeptides during vitellogenin maturation were identified in hemolymph. Therefore, glucose and vitellogenin concentration in hemolymph can be utilized as indicators of ongoing ovarian maturation process.] La presente ricerca si inquadra nello studio dei principali fattori che intervengono nella fase riproduttiva del gambero australiano (Cherax quadricarinatus). La concentrazione di glucosio nell´emolinfa è risultata significativamente più alta nei gamberi allevati alla temperatura di 28 gradi C e con un fotoperiodo di 14 h di luce rispetto agli animali allevati alla temperatura di 20 gradi C e con un fotoperiodo di 12 h di luce. L´analisi elettroforetica ha consentito di evidenziare la presenza nell´emolinfa di quattro polipeptidi HDL (High-Density Lipoprotein) (170, 177, 196 e 208 kDa) durante la fase di maturazione delle vitellogenine. I dati raccolti nel presente studio indicano che la concentrazione di glucosio e vitellogenine nell´emolinfa possono essere utilizzati come indicatori del processo di maturazione degli ovari dei gamberi |
Author | D´Agaro, E. (Udine Univ. (Italy). Dipartimento di Scienze della Produzione Animale) Giulianini, P.G. (Trieste Univ. (Italy). Dipartimento di Biologia) Carati, R. (Udine Univ. (Italy). Dipartimento di Scienze della Produzione Animale) Lanari, D. (Udine Univ. (Italy). Dipartimento di Scienze della Produzione Animale) Ferrero, E.A. (Trieste Univ. (Italy). Dipartimento di Biologia) Lorenzon, S. (Trieste Univ. (Italy). Dipartimento di Biologia) |
Author_xml | – sequence: 1 fullname: Lanari, D. (Udine Univ. (Italy). Dipartimento di Scienze della Produzione Animale) – sequence: 2 fullname: D´Agaro, E. (Udine Univ. (Italy). Dipartimento di Scienze della Produzione Animale) – sequence: 3 fullname: Ferrero, E.A. (Trieste Univ. (Italy). Dipartimento di Biologia) – sequence: 4 fullname: Carati, R. (Udine Univ. (Italy). Dipartimento di Scienze della Produzione Animale) – sequence: 5 fullname: Lorenzon, S. (Trieste Univ. (Italy). Dipartimento di Biologia) – sequence: 6 fullname: Giulianini, P.G. (Trieste Univ. (Italy). Dipartimento di Biologia) |
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Snippet | [The present study is a part of a research on main factors involved in reproduction of crayfish (Cherax quadricarinatus).Glucose concentration in hemolymph was... The freshwater crayfish Cherax quaricarinatus has been recently introduced in several countries world-wide. From a practical point of view there is a growing... |
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SubjectTerms | acquacoltura ACUICULTURA aquaculture CANGREJO DE RIO cherax Cherax quadricarinatus, glucose, vitellogenin crayfish ECREVISSE emolinfa fotoperiodismo gambero d´acqua dolce GLUCOSA glucose glucosio haemolymph HEMOLINFA HEMOLYMPHE PHOTOPERIODICITE photoperiodicity temperatura temperature vitellogenine vitellogenins VITELOGENINA |
Title | Effects of temperature and photoperiod on glucose and vitellogenin hemolymph concentrations in crayfish Cherax quadricarinatus (van Martens 1868) |
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