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Animal Sciences

Turkish Journal of Veterinary & Animal Sciences

2005

Lead

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Full-Text Articles in Life Sciences

Effects Of Heavy Metal Accumulation On The 96-H Lc_50 Values In Tench Tinca Tinca L., 1758, Syed Lal Shah, Ahmet Altindağ Jan 2005

Effects Of Heavy Metal Accumulation On The 96-H Lc_50 Values In Tench Tinca Tinca L., 1758, Syed Lal Shah, Ahmet Altindağ

Turkish Journal of Veterinary & Animal Sciences

The effects of already accumulated heavy metals (Hg, Cd, Pb) in the body of tench on the 96-h LC_50 values of the respective heavy metals were studied. The body concentration of mercury, cadmium and lead was 0.011, 0.32 and 1.59 mg/g respectively, and their 96-h LC_50 values were 1.0, 6.5 and 300.0, ppm, respectively. The general accumulation order of heavy metals and their respective 96-h LC_50 values were Hg< Cd< Pb. It was observed that the fish with lowest body concentration of heavy metal showed the lowest 96-h LC_50 value of the respective heavy metal and vice versa. This close relationship showed that the previous body accumulation of heavy metals has a direct effect on the 96-h LC_50 values of the respective heavy metals and the susceptibility of fish.


The Effects Of Dietary Lead Exposure And Ascorbic Acid On Performance, Lipid Peroxidation Status And Biochemical Parameters Of Broilers, Zeynep Erdoğan, Suat Erdoğan, Taylan Aksu, Erol Baytok Jan 2005

The Effects Of Dietary Lead Exposure And Ascorbic Acid On Performance, Lipid Peroxidation Status And Biochemical Parameters Of Broilers, Zeynep Erdoğan, Suat Erdoğan, Taylan Aksu, Erol Baytok

Turkish Journal of Veterinary & Animal Sciences

Lead is one of the ubiquitous environmental pollutants that induce a broad range of physiological and biochemical dysfunctions in animals. This study evaluated the effects of dietary lead exposure and ascorbic acid on performance, serum biochemical parameters, plasma malondialdehyde and lead accumulation in broiler chickens. For this purpose, lead acetate at 200 mg/kg and ascorbic acid at 100 mg/kg were added to the diet alone or in combination for 42 days. A total of 120 broiler chicks were divided into 4 treatment groups: control, ascorbic acid, lead, and lead + ascorbic acid. By the end of the study, lead caused …


Alterations In The Immunological Parameters Of Tench (Tinca Tinca L. 1758) After Acute And Chronic Exposure To Lethal And Sublethal Treatments With Mercury, Cadmium And Lead, Syed Lal Shah, Ahmet Altindağ Jan 2005

Alterations In The Immunological Parameters Of Tench (Tinca Tinca L. 1758) After Acute And Chronic Exposure To Lethal And Sublethal Treatments With Mercury, Cadmium And Lead, Syed Lal Shah, Ahmet Altindağ

Turkish Journal of Veterinary & Animal Sciences

Tinca tinca were exposed to lethal and sublethal treatments with mercury, cadmium and lead for acute and chronic periods to study alterations in immunological parameters. Acute lethal exposure (Lc_{50}/48 h ; 96-h Lc_{50} of Hg 1.0, Cd 6.5, Pb 300 ppm) caused a significant increase in Lct in the Hg treatment and a significant decrease in the Pb treatment, and a significant decrease in total WBC count in the Hg and Cd treatments. Lower acute sublethal exposures (10% Lc50/24 h), caused a significant increase in Lct in the Hg and Pb, treatments and a significant increase in total WBC count …