Normal view MARC view ISBD view

The effect of calcium pre-exposure on the acute copper toxicity to juvenile nile tilapia, Oreochromis niloticus [electronic resource].

By:

Abdel-Tawwab, Mohsen

Contributor(s):

Mousa, Mamdouh A. A

Language: English Summary language: Arabic Description: p.80-87Other title:

تأثير تعرض زريعة البلطي النيلي للكالسيوم على سمية النحاس [Added title page title]

Uniform titles:

Zagazig veterinary journal, 2005 v. 33 (1) [electronic resource].

Subject(s):

Online resources:

Full Text Article.

In: Zagazig Veterinary Journal 2005.v.33(1)Summary: The toxicity of copper to Nile tilapia, Oreochromis niloticus was evaluated by determining the 96-hr LC₅₀. Two experiments were done to investigate the effects of pre-exposure of Nile tilapia to 4 different Ca-salts and concentrations on the acute copper toxicity in indoor laboratory. Expt. (1) was carried out to determine the 96-hr LC₅₀ of Cu²⁺+ in copper sulfate to fish pre-exposed to 4 different Ca-salts (Ca-oxide, Ca-carbonate, Ca-chloride and Ca-sulfate). Expt. (2) was carried out to determine the optimum Ca2+ concentration, to minimize the Cu²⁺ toxicity. Comparing the copper toxicity to the Nile tilapia, preexposed to 100 mg Ca²⁺/L as Ca-oxide, Ca-carbonate, Ca-chloride and Ca-sulfate, the 96-hr LC50 of Cu²⁺was 14.27, 11.19, 10.18 and 9.29 mg Cu²⁺/L, respectively, while the 96-hr LC₅₀ for control was 5.03 mg Cu2+/L.

Average rating: 0.0 (0 votes)

No physical items for this record

Includes references.

The toxicity of copper to Nile tilapia, Oreochromis niloticus was evaluated by determining the 96-hr LC₅₀. Two experiments were done to investigate the effects of pre-exposure of Nile tilapia to 4 different Ca-salts and concentrations on the acute copper toxicity in indoor laboratory. Expt. (1) was carried out to determine the 96-hr LC₅₀ of Cu²⁺+ in copper sulfate to fish pre-exposed to 4 different Ca-salts (Ca-oxide, Ca-carbonate, Ca-chloride and Ca-sulfate). Expt. (2) was carried out to determine the optimum Ca2+ concentration, to minimize the Cu²⁺ toxicity. Comparing the copper toxicity to the Nile tilapia, preexposed to 100 mg Ca²⁺/L as Ca-oxide, Ca-carbonate, Ca-chloride and Ca-sulfate, the 96-hr LC50 of Cu²⁺was 14.27, 11.19, 10.18 and 9.29 mg Cu²⁺/L, respectively, while the 96-hr LC₅₀ for control was 5.03 mg Cu2+/L.

Summary in Arabic.

There are no comments on this title.

to post a comment.