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

The 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 developm...

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Main Author:	Siang, Ng Beng
Format:	Thesis
Language:	English
Subjects:	SF 98 .A44 S5 2007 Ammonia in animal nutrition
Online Access:	http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/3/SF98%20.A44%20S5%202007%20Abstract.pdf http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/4/SF98%20.A44%20S5%202007.pdf
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id	my-umt-ir.-653
record_format	uketd_dc
spelling	my-umt-ir.-6532016-03-10T08:50:55Z Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae Siang, Ng Beng The 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. Institut Akuakultur Tropika 2007-09 Thesis en http://hdl.handle.net/123456789/653 http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/2/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/3/SF98%20.A44%20S5%202007%20Abstract.pdf f01cd85071772d82d4c8ceee910e1906 http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/4/SF98%20.A44%20S5%202007.pdf 87244b4cbb0f2d089caf9e4fb4db3fc2 http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/5/SF98%20.A44%20S5%202007%20Abstract.pdf.txt 03c79cc848d637c701b57907e930db9f http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/6/SF98%20.A44%20S5%202007.pdf.txt d3d220a4c1e107d9efb7b0d206743161 SF 98 .A44 S5 2007 Siang, Ng Beng Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae Ammonia in animal nutrition
institution	Universiti Malaysia Terengganu
collection	UMT Repository System
language	English
topic	SF 98 .A44 S5 2007 SF 98 .A44 S5 2007 SF 98 .A44 S5 2007 Ammonia in animal nutrition
spellingShingle	SF 98 .A44 S5 2007 SF 98 .A44 S5 2007 SF 98 .A44 S5 2007 Ammonia in animal nutrition Siang, Ng Beng Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae
description	The 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.
format	Thesis
author	Siang, Ng Beng
author_facet	Siang, Ng Beng
author_sort	Siang, Ng Beng
title	Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae
title_short	Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae
title_full	Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae
title_fullStr	Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae
title_full_unstemmed	Study on the early development and effects of ammonia on climbing perch (Anabas testudineus, Bloch) larvae
title_sort	study on the early development and effects of ammonia on climbing perch (anabas testudineus, bloch) larvae
granting_institution	Institut Akuakultur Tropika
url	http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/3/SF98%20.A44%20S5%202007%20Abstract.pdf http://umt-ir.umt.edu.my:8080/jspui/bitstream/123456789/653/4/SF98%20.A44%20S5%202007.pdf
_version_	1747835802937720832

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

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