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Effect of dietary astaxanthin and vitamin A on the reproductive performance of Penaeus monodon broodstock

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ffssa_p109.pdf (38.04Kb) Open Access
Downloads: 1,707
Date
1996
Author
Pangantihon, Ma. Paz
Chiu-Chern, Yvonne
Millamena, Oseni M.
Page views
8,981
Subject
diet ASFA
food additives ASFA
pond culture ASFA
rearing techniques ASFA
reproduction ASFA
shrimp culture ASFA
vitamin a ASFA
Penaeus monodon AGROVOC
Taxonomic term
Penaeus monodon GBIF
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Abstract
Reproductive performance of pond-reared tiger shrimp given astaxanthin (100 mg/kg diet) and Vitamin A (20,000 IU) for 61 days was assessed in a 2x2 factorial experiment in a completely randomized design. Mean gonad index (the degree of gonadal development) of shrimp fed diets containing astaxanthin and/or vitamin A (3.08-3.30) was significantly high (P< 0.01) compared with that of the control (2.36). However, shrimp fed astaxanthin supplement had a significantly higher (P < 0.01) mean gonad index than those fed diet with vitamin A. Interconversion of both supplements was highly detectable during gonadal development of shrimp. Fecundity (3.2 - 7.3 x 10 eggs/female) and hatching rate of eggs (0.0 - 5.7%) were not significantly affected (P > 0.05) by the addition of astaxanthin and/or vitamin A in the diet. The results suggest that astaxanthin and vitamin A supplementation significantly improve gonadal development and spawning but not fecundity and hatching rate. Astaxanthin and vitamin A interconversion occurs more towards the astaxanthin pathway. Hormonal changes during eyestalk ablation could have influenced this interconversion. Further, astaxanthin is directly involved in the gonadal development of pond-reared shrimp broodstock. High maturation rate (60%), spawning rate (36%) and early occurrence of first spawning (14 days after eyestalk ablation) were observed in shrimp fed astaxanthin supplement.
Description
Abstract only
URI
http://hdl.handle.net/10862/540
Type
Conference paper
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  • Feeds for Small-scale Aquaculture [23]

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