Publication:
Dietary calcium reducing effects of waterborne lead uptake in nile tilapia (oreochromis niloticus).

Issued Date

2007

Resource Type

Article

Language

eng

Rights

Mahidol University

Bibliographic Citation

Asian Journal of Animal and Veterinary Advances. Vol. 2, No. 3 (2007), 104-114

Suggested Citation

Kandarat Lamchumchang, Wannee Jiraungkoorskul, Somphong Sahaphong, Tawewan Tansatit, Piya Kosai, Raviporn Madarasmi Dietary calcium reducing effects of waterborne lead uptake in nile tilapia (oreochromis niloticus).. Asian Journal of Animal and Veterinary Advances. Vol. 2, No. 3 (2007), 104-114. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/9900

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Title

Dietary calcium reducing effects of waterborne lead uptake in nile tilapia (oreochromis niloticus).

Author(s)

Kandarat Lamchumchang
 Wannee Jiraungkoorskul
 Somphong Sahaphong
 Tawewan Tansatit
 Piya Kosai
 Raviporn Madarasmi

Other Contributor(s)

Mahidol University. International College. Science Division.

Abstract

This study investigated the influence of dietary calcium supplementation to reduce the toxicity of sublethal lead concentration in Nile tilapia with emphasis on biochemical and histopathological analysis. The values of 24, 48, 72 and 96 h LC50 of lead to tilapia were 247.51, 197.47, 193.36 and 182.38 mg L-1, respectively. Therefore, lead concentration tested in the sublethal experiment was 45 mg L-1, which correspond to 25% of the 96 h LC50. Fish were fed with 0, 20 and 60 mg Ca2+ g-1 food for 30 days. In the gills of Pb treatment, edema, lamellar cell hyperplasia, epithelial lifting, lamellar fusion and aneurysm were observed. In the liver, there were blood congestion in sinusoids, vacuolation of hepatocytes and necrosis. In the kidney, glomerulus`s atrophy, tubular swelling and also necrosis were seen. The structural damages could be correlated to the significant increase (p<= 0.05) in aminotransferase activities. Fish fed with Ca2+ supplemented diets showed slightly alteration when compare the only Pb treatment groups. These results indicated that dietary Ca2+ will be protective in reducing Pb burdens in fish exposed to environments contaminated with waterborne Pb.

Keyword(s)

Oreochromis niloticus
 nile tilapia
 lead nitrate
 calcium
 aminotransferase

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https://repository.li.mahidol.ac.th/handle/20.500.14594/9900

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