Roy, B.K.Kumari, Sugandha2017-06-212017-06-212014http://krishikosh.egranth.ac.in/handle/1/5810022203STUDIES ON SELECTED HEAVY METALS RESIDUES IN MILK OF COWS AND BUFFALOESAt the present era of globalization environmental pollution especially heavy metals is a major global concern posing serious risk to man and animal health. So, the present study is designed to estimate the levels of Cu, Fe, Cd, Pb, Mn, Co, Zn and Ni in milk of cows and buffaloes in Ranchi City. 1) Copper: The highest concentration of copper in cow (0.1520±0.0033 mg/L) was observed in milk of Harmu whereas its highest concentrations was recorded in Morabadi of buffalo milk (0.1791±0.0049 mg/L) samples. The average concentration of copper of buffalo milk sample was significantly higher than cow milk sample. 2) Iron: In cow milk samples the iron concentration was highest in Morabadi (11.3618±1.7400 mg/L) whereas lowest concentration was estimated in Ratu (3.2860±0.4500 mg/L). The average concentration of iron in buffalo milk Abstract 2 (7.7815±1.3400 mg/L) samples was recorded highest in Harmu while lowest (2.3860±0.1200 mg/L) in Ratu. The average concentration of iron in cow milk sample was significantly (P<0.01) higher as compare to buffalo milk samples. 3) Cadmium: The Cd concentration was found to be highest in cow milk (0.1340±0.0188 mg/L) samples as well as buffalo milk samples of Morabadi. The Cd was not present in RVC milk sample of buffalo. The average Cd concentration was significantly higher in milk samples of cows as compared to buffalo milk samples. 4) Manganese: The highest concentrations of Mn was found in cows milk (0.1633±0.0237 mg/L) of Morabadi whereas the highest concentrations of Mn in buffaloes milk (0.4955±0.1452 mg/L) was found in Harmu. The average Mn concentration was significantly higher in buffaloes milk as compared to cows milk. 5) Cobalt: In cow milk samples, the highest concentrations of cobalt was observed in RVC (0.0907±0.0156 mg/L) and lowest in Morabadi (0.0058±0.0016 mg/L). The average concentration of cobalt in buffaloes milk samples was also observed highest in RVC (0.1870±0.0268 mg/L) and lowest in Harmu (0.0733±0.0125 mg/L). The average cobalt concentration was significantly higher in buffaloes milk samples as compared to cows milk samples. 6) Lead: The average Pb concentration in cows milk was 0.3913±0.0497 mg/L while the average Pb concentration in buffalo milk was 0.2260±0.0419 mg/L. The average Pb concentration was significantly higher in cow milk (0.03380±0.0207 mg/L) than buffalo milk (0.1272±0.0143 mg/L). 7) Zinc: The Zn concentration was observed highest in Morabadi (0.5033±0.0478 mg/L), in cows milk and the same concentration was (0.7157±0.0289 mg/L) in buffaloes milk. Abstract 3 The average concentration of Zn was significantly (P<0.01) higher in buffaloes milk as compare to cows milk. 8) Nickel: The average concentration of Ni was found to be highest in cows milk (0.3122±0.0233) as compared to buffalo milk (0.2685±0.0212 mg/L) in Harmu. The average concentration of Ni was found to be significantly higher in cows milk as compared to buffaloes milk.en-USnullThesis