Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae

Simple item page
dc.contributor.authorSiang, Ng Beng
dc.date.accessioned2011-01-06T02:42:02Z
dc.date.available2011-01-06T02:42:02Z
dc.date.issued2007-09
dc.description.abstractThe early life development and effects of ammonia on the climbing perch Anabas testudineus embryos and larvae were studied. The water bath system was used to maintain water temperature, dissolved oxygen (DO) and pH ranging from 29.0 - 29.8 °C, 7.4 - 7.8 mg/1, 7.64 - 7.73 during embryonic development and 28.8 - 30.9 °C, 6.8 - 7.5 mg/1 and 7.06 - 7.98 for larval development, respectively. Newly fertilized eggs were spherical with mean diameter of 0.93 ± 0.02 mm. First cleavage occurred 30 min after fertilization. The morula, blastula and gastrula stages occurred at 1:10 hour, 1:32 hour and 3:34 hours, respectively. The embryo stage began seven hours later with development of optic vesicle and pigment action followed by heartbeat and blood circulation. The embryos started to hatch 17 hours after fertilization and were completed within 2 hours. The newly hatched larvae were actively swimming one day after hatching and started exogenous feeding on day 2. A l l the yolk were absorbed 6 days after hatching and during this stage flexion occurred at the caudal fin. On day 8, the dorsal, anal and caudal fins had developed primordial finfold. Nine day old larvae have a compressed oblong body.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/653
dc.language.isoenen_US
dc.publisherInstitut Akuakultur Tropikaen_US
dc.subjectSF 98 .A44 S5 2007en_US
dc.subjectSiang, Ng Bengen_US
dc.subjectStudy on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvaeen_US
dc.subjectAmmonia in animal nutritionen_US
dc.titleStudy on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvaeen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
SF98 .A44 S5 2007 Abstract.pdf
Size:
326.36 KB
Format:
Adobe Portable Document Format
Download
No Thumbnail Available
Name:
SF98 .A44 S5 2007.pdf
Size:
14.52 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Institut Akuakultur Tropika