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Effect of stunting of juvenile bighead carp Aristichthys nobilis (Richardson) on compensatory growth and reproduction

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Date
2004
Author
Santiago, Corazon B.
Gonzal, Angelito C.
Aralar, Emiliano V.
Arcilla, Renato P.
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Abstract
The study was conducted to determine if stunting of young bighead carp Aristichtys nobilis (Richardson) would affect subsequent growth and reproduction. Juveniles (3 g each) were stocked directly in cages (control) in a lake or stunted in tanks for 6, 12, 18 or 24 months before being stocked in cages. Initially, body weights and lengths of stunted carp in cages were significantly lower (P<0.05) than those of the control fish. The carp stunted for 6, 12 and 18 months showed growth compensation, although their weights and lengths were slightly lower than those of the control fish. The body weight and length of fish stunted for 24 months were the lowest throughout the rearing period. Sexual maturation occurred only in the control fish and those stunted for 6 and 12 months. However, the onset of gonad maturity was delayed significantly (P<0.05) in males stunted for 12 months and in both groups of stunted female fish. The relative fecundity (44 000–56 000 eggs per kg body weight) and number of 3-day-old larvae produced per female (78 000–89 000) did not differ significantly among the three treatments (P>0.05), but production was somewhat lower in fish stunted for 12 months.
URI
http://hdl.handle.net/10862/2026
Suggested Citation
Santiago, C. B., Gonzal, A. C., Aralar, E. V., & Arcilla, R. P. (2004). Effect of stunting of juvenile bighead carp Aristichthys nobilis (Richardson) on compensatory growth and reproduction. Aquaculture Research, 35(9), 836-841.
DOI
10.1111/j.1365-2109.2004.01074.x
Subject
body weight ASFA; fecundity ASFA; fish culture ASFA; growth rate ASFA; length ASFA; sexual maturity ASFA; sexual reproduction ASFA; stunting ASFA; Hypophthalmichthys nobilis; Bighead carp; Reproductive performance; Growth compensation; Aristichthys nobilis
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