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Growth performance, biochemical, cytological and molecular aspects of rabbits exposed to lead toxicity
Faculty
Agriculture
Year:
2019
Type of Publication:
ZU Hosted
Pages:
9
Authors:
Mahmoud Mohamed Ibrahiem Ibrahiem Elagawany
Staff Zu Site
Abstract In Staff Site
Journal:
Animal Physiology and Animal Nutrition weily
Volume:
111 (2019) 42–50
Keywords :
Growth performance, biochemical, cytological , molecular aspects , rabbits
Abstract:
Heavy metals have enormous variety of deleterious effects on many organs in the body. This study demonstrated the toxic influences of lead on the growth, biochemical, cellular and molecular aspects of developing rabbits. Seventy‐five rabbits (New Zealand NZW) were divided into five equal groups as follows; control (C) and four treatment groups (T1‐4) orally administered lead acetate solution as follow T1: 20, T2: 30, T3: 50 and T4: 70 mg/kg body weight. Lead resulted in a significant decrease in live body weight, daily body weight gain and feed intake in T3 and T4 compared to those in other groups. Blood haematology measurements such as red blood cells, haematocrit (HCT), mean corpuscular volume, platelet, white blood cells and lymphocytes were significantly influenced by the high level of lead. Oral administration of lead significantly reduced total proteins in the serum. It was observed that the high lead level led to significantly (p < 0.05) increased levels of aspartate aminotransferase, alanine aminotransferase enzymes, urea and creatinine. Four random amplified polymorphic DNA primers polymorphism were detected among the treatment groups. Total number of induced bands (loss or appearance) compared with control group were 4, 10, 10 and 14 bands using primers P1, P2, P3 and P4 respectively. Number of micronuclei showed a dose–response increase and the difference was highly significant especially between control compared with T3 and T4 groups. From our results, we can conclude that exposure of rabbits to lead acetate resulted in negative effects on the growth performance and altered the haematological and biochemical parameters, in addition to its adverse impact on cytological and molecular characterization of animals
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