Effects of water temperature on survival, growth, digestive enzyme activities, and body composition of the leopard coral grouper Plectropomus leopardus
The effects of water temperature (15, 20, 25,30, and 35 °C) on survival, growth performance, digestive enzyme activities, and body composition of Plectropomus leopardus were studied for a period of 6 weeks. One hundred eighty fish with initial body weights of 26.5 ± 1.5 g were randomly arranged into...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Springer
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/40603/ http://irep.iium.edu.my/40603/ http://irep.iium.edu.my/40603/ http://irep.iium.edu.my/40603/1/MM_Rahman%2C_2014-temperature_on_grouper_growth.pdf http://irep.iium.edu.my/40603/4/40603_Effects%20of%20water%20temperature.pdf |
| Summary: | The effects of water temperature (15, 20, 25,30, and 35 °C) on survival, growth performance, digestive enzyme activities, and body composition of Plectropomus leopardus were studied for a period of 6 weeks. One hundred eighty fish with initial body weights of 26.5 ± 1.5 g were randomly arranged into 15 glass aquaria in equal numbers in five recirculating systems to form five groups in triplicate. The results showed that survival of P. leopardus at 35 °C was significantly greater (P < 0.05) than
survival at 15 °C. No death was recorded at 20, 25, and
30 °C. Among all treatment groups, the significantly highest
average individual harvesting weight, weight gain, feed
ingestion rate and protease enzyme activity of P. leopardus
were observed in 30 °C group. Similar results were also
observed in protein and fat content in this species. Based
on the present findings, a culture temperature of 30 °C can
be considered to be the optimum temperature for the aquaculture of juvenile P. leopardus. However, more research is still needed to optimize the nutrition and photoperiod of P. leopardus culture. |
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