Effects of temperature on the growth, gastric emptying time, and oxygen consumption rate of mahseer (Tor tambroides) under laboratory conditions

Simon Kumar Das, Noorashikin Md Noor, Khor Si Kai, Quan Zhi Juan, Nur Syuhada Mohd Iskandar, Moumita De

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The growth, gastric emptying time (GET), and oxygen consumption rate (OCR) of the commercially important freshwater mahseer, Tor tambroides, were evaluated under five temperatures (22 °C, 24 °C, 26 °C, 28 °C, and 30 °C) in triplicates with 15 fish per replication in a controlled laboratory condition. After 12 weeks, the body weight gain (BWG), specific growth rate (SGR), and daily growth rate (DGR) were measured. The highest BWG (7.25 ± 1.14 g), SGR (0.71% ± 0.10% day−1), and DGR (4.70 ± 0.20 g day−1) were observed at 30 °C, whereas the lowest BWG (3.16 ± 0.90 g), SGR (0.30 ± 0.05% day−1), and DGR (1.77 ± 0.30 g day−1) were observed at 22 °C (P < 0.05). The fish were then slaughtered sequentially at different time intervals after initial feeding to obtain GET. Results showed that the shortest GET (10 h) was observed at 30 °C, whereas the longest (18 h) GET was at 22 °C. OCR was significantly high at 30 °C (5.5 ± 0.53 mL O2L−1 h−1) but low at 22 °C (1.55 ± 0.23 mL O2 L−¹h−1). Based on the temperature quotient (Q10), the optimum temperature range for the respiration rate was between 28 °C and 30 °C. The findings of this study suggest that T. tambroides should be cultured at 30 °C because this temperature facilitates fast GET and best OCR, which may contribute to their fast growth. In summary, these findings would be useful to increase the production of T. tambroides in captive environment.

Original languageEnglish
Pages (from-to)20-24
Number of pages5
JournalAquaculture Reports
Volume12
DOIs
Publication statusPublished - 1 Nov 2018

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gastric emptying
oxygen consumption
specific growth rate
weight gain
temperature
body weight
respiratory rate
fish
Tor tambroides
laboratory
rate
effect
respiration

Keywords

  • Aquaculture
  • Digestion rate
  • Growth
  • Mahseer
  • Production
  • Temperature quotient

ASJC Scopus subject areas

  • Aquatic Science
  • Animal Science and Zoology

Cite this

Effects of temperature on the growth, gastric emptying time, and oxygen consumption rate of mahseer (Tor tambroides) under laboratory conditions. / Das, Simon Kumar; Noor, Noorashikin Md; Kai, Khor Si; Juan, Quan Zhi; Mohd Iskandar, Nur Syuhada; De, Moumita.

In: Aquaculture Reports, Vol. 12, 01.11.2018, p. 20-24.

Research output: Contribution to journalArticle

Das, Simon Kumar ; Noor, Noorashikin Md ; Kai, Khor Si ; Juan, Quan Zhi ; Mohd Iskandar, Nur Syuhada ; De, Moumita. / Effects of temperature on the growth, gastric emptying time, and oxygen consumption rate of mahseer (Tor tambroides) under laboratory conditions. In: Aquaculture Reports. 2018 ; Vol. 12. pp. 20-24.
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AU - Mohd Iskandar, Nur Syuhada

AU - De, Moumita

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AB - The growth, gastric emptying time (GET), and oxygen consumption rate (OCR) of the commercially important freshwater mahseer, Tor tambroides, were evaluated under five temperatures (22 °C, 24 °C, 26 °C, 28 °C, and 30 °C) in triplicates with 15 fish per replication in a controlled laboratory condition. After 12 weeks, the body weight gain (BWG), specific growth rate (SGR), and daily growth rate (DGR) were measured. The highest BWG (7.25 ± 1.14 g), SGR (0.71% ± 0.10% day−1), and DGR (4.70 ± 0.20 g day−1) were observed at 30 °C, whereas the lowest BWG (3.16 ± 0.90 g), SGR (0.30 ± 0.05% day−1), and DGR (1.77 ± 0.30 g day−1) were observed at 22 °C (P < 0.05). The fish were then slaughtered sequentially at different time intervals after initial feeding to obtain GET. Results showed that the shortest GET (10 h) was observed at 30 °C, whereas the longest (18 h) GET was at 22 °C. OCR was significantly high at 30 °C (5.5 ± 0.53 mL O2L−1 h−1) but low at 22 °C (1.55 ± 0.23 mL O2 L−¹h−1). Based on the temperature quotient (Q10), the optimum temperature range for the respiration rate was between 28 °C and 30 °C. The findings of this study suggest that T. tambroides should be cultured at 30 °C because this temperature facilitates fast GET and best OCR, which may contribute to their fast growth. In summary, these findings would be useful to increase the production of T. tambroides in captive environment.

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KW - Production

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