Effects of Nickel and Cadmium Contaminated Fish Meat on Chromosomal Aberrations and Sperm Morphology of Swiss Albino Mice

Two heavy metals Ni and Cd were determined in a freshwater fish, Barbus xanthopterus using 700-atomic absorption: the highest values were found to be (82.1 12 µg g-1), and (4.702 µg g-1), respectively. Flesh of this fish was fed to mice in two groups for each two periods (1 and 2 months) to monitor chromosomal aberrations and sperm morphology. In Group (1) first period: the ring chromosome (3.2 ± 0.200) and centromeric gap (2.9 ± 0.314) have the highest value of aberration type, while the lowest value was chromatid break (0.0 ± 0.000), in second period: the centromere gap (4 ± 0.333) and chromatid gap (3.4 ± 0.266) have the highest value of aberration type, while the lowest value was polyploidy (0.6 ± 0.266). In Group (2) first period: the highest value of abnormality type was sperm without tail (4.9 ± 0.276) swollen head sperm (4.1 ± 0.622) and sperm without hook (3.9 ±0.433), while the lowest value was blunt hook sperm (0.0 ±0.000). In second period: the highest value of abnormality type was defective head sperm (4.2± 0.416), sperm without tail (3.7 ± 0.488) and swollen head sperm (3.7 ±0.667), and the lowest value was blunt hook sperm (1.0 ±0.421).