Maintenance ration, protein synthesis capacity, plasma insulin and growth of Atlantic salmon (Salmo salar L.) with genetically different trypsin isozymes

K Rungruangsak-Torrissen, C G Carter, A Sundby, A Berg, D F Houlihan

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Growth was found to be associated with the changes of trypsin activity in the pyloric caecal tissues and the level of plasma insulin in Atlantic salmon (Salmo salar L.). A decrease in trypsin activity accompanied by an increase in plasma insulin was detected one month before an enhanced growth was observed. There were significant relationships between weight specific consumption rate, plasma insulin levels and fish growth. The correlation of weight specific consumption rate was higher with growth rate (R-2=0.7, p < 0.0001) than with plasma insulin concentration (R-2=0.4, p < 0.0001).

When the comparison was made between Atlantic salmon carrying and lacking the trypsin variant TRP-2*92, the fish with the variant had lower maintenance ration (p < 0.05), higher capacity for protein synthesis in the white muscle (p < 0.02), and a greater ability to utilize the feed at a restricted ration than the fish without the variant. In Atlantic salmon lacking the variant, both plasma insulin concentrations and growth rates were significantly lower (p < 0.05) in the fish fed 0.5% bw day(-1) than those fed 1% bw day(-1). Whilst the growth rates of TRP-2*92 salmon fed the different rations became similar one month after similar levels of plasma insulin were observed between them. The TRP-2*92 salmon may be defined as a high protein growth efficiency fish with low protein turnover rate.

Genetic variation in trypsin isozyme pattern affects feed utilization, plasma insulin levels and growth in Atlantic salmon.

Original languageEnglish
Pages (from-to)223-233
Number of pages11
JournalFish Physiology and Biochemistry
Volume21
Publication statusPublished - 1999

Keywords

  • Atlantic salmon
  • growth
  • individual feed consumption rate
  • plasma insulin
  • protein synthesis capacity
  • trypsin isozymes
  • RAINBOW-TROUT
  • GLUCAGONLIKE PEPTIDE
  • DIGESTIVE-TRACT
  • RATES
  • GAIRDNERI
  • DEGRADATION
  • EFFICIENCY
  • STARVATION
  • CONVERSION
  • PATTERNS

Cite this

Maintenance ration, protein synthesis capacity, plasma insulin and growth of Atlantic salmon (Salmo salar L.) with genetically different trypsin isozymes. / Rungruangsak-Torrissen, K ; Carter, C G ; Sundby, A ; Berg, A ; Houlihan, D F .

In: Fish Physiology and Biochemistry, Vol. 21, 1999, p. 223-233.

Research output: Contribution to journalArticle

@article{7172d64490b04cf6b3f525ee63082454,
title = "Maintenance ration, protein synthesis capacity, plasma insulin and growth of Atlantic salmon (Salmo salar L.) with genetically different trypsin isozymes",
abstract = "Growth was found to be associated with the changes of trypsin activity in the pyloric caecal tissues and the level of plasma insulin in Atlantic salmon (Salmo salar L.). A decrease in trypsin activity accompanied by an increase in plasma insulin was detected one month before an enhanced growth was observed. There were significant relationships between weight specific consumption rate, plasma insulin levels and fish growth. The correlation of weight specific consumption rate was higher with growth rate (R-2=0.7, p < 0.0001) than with plasma insulin concentration (R-2=0.4, p < 0.0001).When the comparison was made between Atlantic salmon carrying and lacking the trypsin variant TRP-2*92, the fish with the variant had lower maintenance ration (p < 0.05), higher capacity for protein synthesis in the white muscle (p < 0.02), and a greater ability to utilize the feed at a restricted ration than the fish without the variant. In Atlantic salmon lacking the variant, both plasma insulin concentrations and growth rates were significantly lower (p < 0.05) in the fish fed 0.5{\%} bw day(-1) than those fed 1{\%} bw day(-1). Whilst the growth rates of TRP-2*92 salmon fed the different rations became similar one month after similar levels of plasma insulin were observed between them. The TRP-2*92 salmon may be defined as a high protein growth efficiency fish with low protein turnover rate.Genetic variation in trypsin isozyme pattern affects feed utilization, plasma insulin levels and growth in Atlantic salmon.",
keywords = "Atlantic salmon, growth, individual feed consumption rate, plasma insulin, protein synthesis capacity, trypsin isozymes, RAINBOW-TROUT, GLUCAGONLIKE PEPTIDE, DIGESTIVE-TRACT, RATES, GAIRDNERI, DEGRADATION, EFFICIENCY, STARVATION, CONVERSION, PATTERNS",
author = "K Rungruangsak-Torrissen and Carter, {C G} and A Sundby and A Berg and Houlihan, {D F}",
year = "1999",
language = "English",
volume = "21",
pages = "223--233",
journal = "Fish Physiology and Biochemistry",
issn = "0920-1742",
publisher = "Springer Netherlands",

}

TY - JOUR

T1 - Maintenance ration, protein synthesis capacity, plasma insulin and growth of Atlantic salmon (Salmo salar L.) with genetically different trypsin isozymes

AU - Rungruangsak-Torrissen, K

AU - Carter, C G

AU - Sundby, A

AU - Berg, A

AU - Houlihan, D F

PY - 1999

Y1 - 1999

N2 - Growth was found to be associated with the changes of trypsin activity in the pyloric caecal tissues and the level of plasma insulin in Atlantic salmon (Salmo salar L.). A decrease in trypsin activity accompanied by an increase in plasma insulin was detected one month before an enhanced growth was observed. There were significant relationships between weight specific consumption rate, plasma insulin levels and fish growth. The correlation of weight specific consumption rate was higher with growth rate (R-2=0.7, p < 0.0001) than with plasma insulin concentration (R-2=0.4, p < 0.0001).When the comparison was made between Atlantic salmon carrying and lacking the trypsin variant TRP-2*92, the fish with the variant had lower maintenance ration (p < 0.05), higher capacity for protein synthesis in the white muscle (p < 0.02), and a greater ability to utilize the feed at a restricted ration than the fish without the variant. In Atlantic salmon lacking the variant, both plasma insulin concentrations and growth rates were significantly lower (p < 0.05) in the fish fed 0.5% bw day(-1) than those fed 1% bw day(-1). Whilst the growth rates of TRP-2*92 salmon fed the different rations became similar one month after similar levels of plasma insulin were observed between them. The TRP-2*92 salmon may be defined as a high protein growth efficiency fish with low protein turnover rate.Genetic variation in trypsin isozyme pattern affects feed utilization, plasma insulin levels and growth in Atlantic salmon.

AB - Growth was found to be associated with the changes of trypsin activity in the pyloric caecal tissues and the level of plasma insulin in Atlantic salmon (Salmo salar L.). A decrease in trypsin activity accompanied by an increase in plasma insulin was detected one month before an enhanced growth was observed. There were significant relationships between weight specific consumption rate, plasma insulin levels and fish growth. The correlation of weight specific consumption rate was higher with growth rate (R-2=0.7, p < 0.0001) than with plasma insulin concentration (R-2=0.4, p < 0.0001).When the comparison was made between Atlantic salmon carrying and lacking the trypsin variant TRP-2*92, the fish with the variant had lower maintenance ration (p < 0.05), higher capacity for protein synthesis in the white muscle (p < 0.02), and a greater ability to utilize the feed at a restricted ration than the fish without the variant. In Atlantic salmon lacking the variant, both plasma insulin concentrations and growth rates were significantly lower (p < 0.05) in the fish fed 0.5% bw day(-1) than those fed 1% bw day(-1). Whilst the growth rates of TRP-2*92 salmon fed the different rations became similar one month after similar levels of plasma insulin were observed between them. The TRP-2*92 salmon may be defined as a high protein growth efficiency fish with low protein turnover rate.Genetic variation in trypsin isozyme pattern affects feed utilization, plasma insulin levels and growth in Atlantic salmon.

KW - Atlantic salmon

KW - growth

KW - individual feed consumption rate

KW - plasma insulin

KW - protein synthesis capacity

KW - trypsin isozymes

KW - RAINBOW-TROUT

KW - GLUCAGONLIKE PEPTIDE

KW - DIGESTIVE-TRACT

KW - RATES

KW - GAIRDNERI

KW - DEGRADATION

KW - EFFICIENCY

KW - STARVATION

KW - CONVERSION

KW - PATTERNS

M3 - Article

VL - 21

SP - 223

EP - 233

JO - Fish Physiology and Biochemistry

JF - Fish Physiology and Biochemistry

SN - 0920-1742

ER -