Correlation of plasma IGF-I concentrations and growth rate in aquacultured finfish: a tool for assessing the potential of new diets

Dyer, Anthony R; Barlow, Chris; Bransden, MP; Carter, Chris; Glencross, Brett; Richardson, Neil; Thomas, P.; Williams, Keith; Carragher, John

doi:10.1016/j.aquaculture.2003.12.025

Cited by 123 publications

(64 citation statements)

References 16 publications

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“…Mingarro et al (2002) found a close positive correlation in sea bream Sparus auratus between IGF-I levels and the thermal-unit growth coefficient, while Beckman et al (2004) established a close relation between IGF-I and growth rate in coho salmon. In Atlantic salmon and barramundi, Dyer et al (2004) demonstrated that plasma IGF-I levels positively correlated to growth rate. Our correlation data on juvenile Persian sturgeon show that IGF-I level has the potential to be used as an index for growth monitoring.…”

Section: Discussionmentioning

confidence: 96%

“…It is expressed in an autocrine/paracrine manner in other tissues and organs (Rinecke et al 1997;Mommsen 1998;Perrot et al 1999;Biga et al 2004). Circulating IGF-I levels seem to play an important role in growth regulation in fish (Moriyama et al 1994;Duan 1997;Dyer et al 2004), and the possibility that IGF-I may have a role in the regulation of gonadal function is supported by presence of IGF-I receptors in fish ovary at different reproductive stages (Gutierrez et al 1993;Maestro et al 1997;Perrot et al 2000). Further evidence of this regulatory role is provided by the ability of fish ovary to produce IGF-I (Duan et al 1993;Duguay et al 1994;Kagawa et al 1995;Reinecke et al 1997;Schmid et al 1999;Biga et al 2004) and the presence of circulating IGF-I in sexually mature fish .…”

Section: Introductionmentioning

confidence: 96%

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Correlations between circulating insulin-like growth factor-I and thyroxine and cortisol hormone levels, and some biometrical traits in female brood stocks during the late stages of sex maturation and in juvenile Persian sturgeon (Acipenser persicus)

Kamangar

Rasaee

Amiri

et al. 2007

Fish Physiol Biochem

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Relationships between insulin-like growth factor-I (IGF-I) and thyroxine (T4) and cortisol hormones were studied in female brood stocks of Persian sturgeon [Acipenser persicus; caught from both sea water (SW) and fresh water (FW)] during late stages of sex maturation. A number of biometrical traits were also studied that could represent the reproductive and/or growth states of brood stocks, and the possible relationship between IGF-I and growth was assessed in juvenile Persian sturgeons between 1 and 4 years of age. IGF-I, T4 and cortisol were measured in serum samples using commercially available kits. A four-parameter logistic model test was performed between the standard curves and the sample dilutions for each hormone. Parallelism, linearity and regression coefficients for the linearized standard curves and serial dilutions of samples were not significantly different (P < 0.05). Serum IGF-I levels in the juveniles were higher than those in the SW brood stocks, and cortisol levels in the former were lower than those in both brood stocks (P < 0.05). T4 levels in serum samples of juveniles were below the detectable level. IGF-I concentrations in juveniles were correlated with total weight, total length and fork length, but they did not increase significantly with increasing age from 1 to 4 years old (P < 0.05). Compared with SW brood stock, the FW brood stock was younger, had a smaller girth, smaller polarization index and higher ova diameter (P < 0.05). There were no differences between IGF-I and T4 levels in the two brood stocks, but cortisol levels were significantly higher in the FW brood stock. Percentage of fertilization was correlated with serum IGF-I in both brood stocks (P < 0.05). Our results support a role for IGF-I during the juvenile growth and reproductive physiology in female brood stocks of the Persian sturgeon.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 96%

Correlations between circulating insulin-like growth factor-I and thyroxine and cortisol hormone levels, and some biometrical traits in female brood stocks during the late stages of sex maturation and in juvenile Persian sturgeon (Acipenser persicus)

Kamangar

Rasaee

Amiri

et al. 2007

Fish Physiol Biochem

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“…Thus, plasma levels of IGF-I are a good indicator of growth rates in European sea bass (Vega-Rubín de Celis et al 2004a) and channel catfish (Silverstein et al 2000, Li et al 2006. Circulating levels of IGF-I are positively correlated with growth rates and dietary protein levels in barramundi and Atlantic salmon (Dyer et al 2004). In salmonids, the regulation of circulating IGF-I is well documented on the basis of seasonal and nutritional cues (Dickhoff et al 1997, Larsen et al 2001, Nordgarden et al 2005.…”

Section: Discussionmentioning

confidence: 99%

Co-expression of IGFs and GH receptors (GHRs) in gilthead sea bream (Sparus aurata L.): sequence analysis of the GHR-flanking region

Saera-Vila¹,

Calduch-Giner²,

Pérez‐Sánchez

2007

Journal of Endocrinology

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The tissue-specific expression of IGFs and GH receptors (GHRs) was analyzed in gilthead sea bream (Sparus aurata L.) as an attempt to understand the functional partitioning of duplicated GHRs on the regulation of fish growth by season and aging. Gene transcripts were measured in liver, muscle, and adipose tissue by means of quantitative real-time PCR assays. In juvenile fish, concurrent increases in circulating levels of GH and IGF-I and hepatic mRNA levels of IGF-I and GHR-I were evidenced with the summer growth spurt. Conversely, muscle and adipose tissue expression of GHR-I and IGF-II were significantly upregulated by overwintering. The aging decrease of growth rates was accompanied by a reduced activity of the liver GH/IGF axis, and parallel increases in muscle IGF expression would be dictated at the local tissue level by the enhanced expression of GHR-I. Extra-hepatic expression of IGFs and GHR-II did not correlate seasonally in juvenile fish, and nonsignificant effects of aging were found on the summer expression of GHR-II in any analyzed tissue. One transcription start site was identified by RLM-RACE in GHR-I and GHR-II. Sequence analyses indicated that both genes have TATA-less promoters containing consensus initiator sequences and downstream promoter elements surrounding the transcription start site. Conserved CCAAT-boxes and GC-rich regions were retrieved in the GHR-I promoter, whereas stress-and redoxsequence elements (cAMP-responsive element-binding protein, activator proteins; AP-1, and AP-4) were characteristic features of GHR-II. All this supports the functional partitioning of fish GHRs regardless of fish species differences.

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“…Tryptophan along with water soluble vitamin niacin plays an important role in the brain as a precursor of the neurotransmitter serotonin, which has a major effect on the feeding behaviour of animals among its many functions (Blundell and Latham 1978;Tackman et al 1990;Mullen and Martin 1992;Coloso et al 2004). Tryptophan along with niacin is also involved in protein and lipid metabolism in fish (Ahmed 2010) and also required for the synthesis of insulin-like growth factor-1 (IGF-1), which is involved in improving the growth rate of fishes (Perez-Sanchez and Le Bail 1999;Dyer et al 2004). The essentiality of tryptophan has been well established in fish nutrition studies by several workers in the past and suggested that tryptophan is essential for fish as precursor of serotonin (5-hydroxytryptamine, 5-HT) with stress-releasing effect (Winberg et al 2001;Lepage et al 2002;Hseu et al 2003;Papoutsoglou et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Dietary amino acid l-tryptophan requirement of fingerling Indian catfish, Heteropneustes fossilis (Bloch), estimated by growth and haemato-biochemical parameters

Ahmed

2012

Fish Physiol Biochem

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An 8-week feeding trial was conducted to determine the dietary tryptophan requirement of fingerling Indian catfish, Heteropneustes fossilis (6.10 ± 1.15 cm, 4.44 ± 0.50 g). Six isonitrogenous (40 g 100 g⁻¹) and isoenergetic (17.90 kJ g⁻¹) amino acid test diets were formulated with gradation of 0.1 g 100 g⁻¹ containing graded levels of L-tryptophan (0.04-0.54 g 100 g⁻¹, dry diet). Fish were stocked in triplicate groups, in 75-L circular trough with flow-through system and fed experimental diets at 4% BW/day twice daily. Maximum live weight gain (258%), best feed conversion ratio (FCR) (1.54) and protein efficiency ratio (PER) (1.62) were obtained in fish fed diet containing 0.34 g 100 g⁻¹ tryptophan. However, quadratic regression analysis of weight gain, FCR, PER and body protein deposition (BPD) data indicated requirements for dietary tryptophan at 0.37, 0.33, 0.32 and 0.33 g 100 g⁻¹ of dry diet, respectively. Significantly (P < 0.05) higher body protein, minimum moisture and intermediate fat contents were recorded at 0.34 g 100 g⁻¹ dietary tryptophan diet. Ash content was not significantly different (P > 0.05) among treatments except for diets 0.04 and 0.14 g 100 g⁻¹. Excellent somatic and haematological indices values were obtained at the requirement level. Based on above results, it is recommended that the diet for H. fossilis should contain tryptophan at 0.32 g 100 g⁻¹, dry diet, corresponding to 0.80 g 100 g⁻¹ dietary protein for optimum growth and efficient feed utilization.

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Correlation of plasma IGF-I concentrations and growth rate in aquacultured finfish: a tool for assessing the potential of new diets

Cited by 123 publications

References 16 publications

Correlations between circulating insulin-like growth factor-I and thyroxine and cortisol hormone levels, and some biometrical traits in female brood stocks during the late stages of sex maturation and in juvenile Persian sturgeon (Acipenser persicus)

Correlations between circulating insulin-like growth factor-I and thyroxine and cortisol hormone levels, and some biometrical traits in female brood stocks during the late stages of sex maturation and in juvenile Persian sturgeon (Acipenser persicus)

Co-expression of IGFs and GH receptors (GHRs) in gilthead sea bream (Sparus aurata L.): sequence analysis of the GHR-flanking region

Dietary amino acid l-tryptophan requirement of fingerling Indian catfish, Heteropneustes fossilis (Bloch), estimated by growth and haemato-biochemical parameters

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