Go to Top Go to Bottom
Asian-Australas J Anim Sci > Volume 15(1); 2002 > Article
Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2002;15(1): 19-25.
DOI: https://doi.org/10.5713/ajas.2002.19    Published online January 1, 2002.
Arsenic Toxicity on Duck Spermatozoa and the Ameliorating Effect of L-Ascorbic Acid
Chai-Ching Lin, Chia-Cherng Huang, Ming-Cheng Chen, Andrew Jeng-Fang Huang, Hung-Yi Chiou
Abstract
The objectives of this study were to understand the possible mechanism of duck sperm toxicity induced by arsenic exposure in vivo, and to investigate the roles of the antioxidant L-ascorbic acid in ameliorating the arsenic-induced sperm impairment. To test the acute toxicity, the percentages of mortality of mature drakes treated with different concentrations of trivalent sodium arsenite, As (III), and pentavalent sodium arsenate, As (V) were measured. The LD50 value of As (III) for mature drakes was 4.89 1.49 ppm. Although As (V) didn''''''''t cause any deaths even at a concentration of 40 ppm, the chronic toxicity of As (V) on sperm quality was shown by a decreased fertilization rate. When the concentrations of As (V) were above 0.4 ppm, fertilization rates were lower than those of 0.04 ppm and control. Drakes treated with 40 ppm of As (V) had the highest malondialdehyde (MDA) level in the testis tissue, 3.100 0.218 mole/g testis. This showed that 40 ppm of As (V) significantly induced lipid peroxidation in testis tissue. For the 1.2 ppm As (III) treatment, several significant effects were observed: (1) sperm motility was decreased most dramatically by 52.0 9.1% after three days of incubation; (2) fertilization rate of artificially inseminated semen was the lowest, 26.4 15.4; (3) the MDA concentration in testis tissue, 7.846 0.246 關mole/g testis, was significantly higher than the others (p<0.05); (4) the sperm number, 1.17 0.40 (횞109), was significantly lower than with the 60 ppb and control treatments (p<0.05); (5) a black appearance and soft texture was observed in the testis tissue. The antioxidant L-ascorbic acid administered along with 1.2 ppm As (III) decreased the toxicity of arsenic. The ameliorating effects included: improved sperm motility, increased sperm number and fertilization rate, and decreased MDA concentration in the testis tissue. This study suggests that the toxicity of the trivalent arsenic on sperm quality is partly from free radicals generated by its metabolic pathway, and the antioxidant ascorbic acid ameliorates arsenic-caused sperm impairment.
Keywords: Drake; Sperm Quality; Antioxidant; Ascorbic Acid; Fertilization Rate; LD50
TOOLS
METRICS Graph View
  • 1 Crossref
  • 2 Scopus
  • 2,037 View
  • 16 Download
Related articles


Editorial Office
Asian-Australasian Association of Animal Production Societies(AAAP)
Room 708 Sammo Sporex, 23, Sillim-ro 59-gil, Gwanak-gu, Seoul 08776, Korea   
TEL : +82-2-888-6558    FAX : +82-2-888-6559   
E-mail : jongkha@hotmail.com               

Copyright © 2019 by Asian-Australasian Journal of Animal Sciences. All rights reserved.

Close layer
prev next