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  • Breeding and Seed Production of Cultured Finfishes in the Philippines
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  • Breeding and Seed Production of Cultured Finfishes in the Philippines
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Impact of nickel poisoning on the histology of the ovaries of Oreochromis mossambicus

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bspcfp_p109b.pdf (39.55Kb) Open Access
Downloads: 1,360
Date
1996
Author
Sioson, C.
Herrera, A.
Page views
3,370
Subject
lethal effects ASFA
biotesting ASFA
fish eggs ASFA
animal reproductive organs ASFA
nickel ASFA
oocytes ASFA
histopathology ASFA
ovaries ASFA
freshwater fishes ASFA
toxicity tests ASFA
Oreochromis mossambicus AGROVOC
Mozambique mouth-breeder
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Abstract
Ovaries of Oreochromis mossambicus exposed to sublethal concentrations of nickel sulphate (0.5 mg/1 and 1.0 mg/1) were histologically analyzed. Changes following exposure to 0.5 mg/1 nickel sulphate include irregularities in the shape of egg follicles, subcellular oocyte damage, lifting off of the theca layer and proliferation of connective tissues. In the ovaries exposed to 1.0 mg/1 nickel sulphate, degenerative changes are worse. Invasion by connective tissues is extensive, oocytes have bizarre shapes, yolk granules are scattered in the interfollicular spaces, abnormal growths are evident and previttelogenic oocytes abound.

Nickel is a toxicant in Oreochromis mossambicus ovaries.
Description
Abstract only.
URI
http://hdl.handle.net/10862/568
Suggested Citation
Sioson, C., & Herrera, A. (1996).Impact of nickel poisoning on the histology of the ovaries of Oreochromis mossambicus. In C. L. Marte, G. F. Quinitio, & A. C. Emata (Eds.), Proceedings of the Seminar-Workshop on Breeding and Seed Production of Cultured Finfishes in the Philippines, Tigbauan, Iloilo, Philippines, 4-5 May 1993 (p. 109). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.
Type
Conference paper
ISBN
9718511326
Collections
  • Breeding and Seed Production of Cultured Finfishes in the Philippines [31]


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