Evaluation of bacterial contaminants and heavy metals in cow and buffalo raw milk sold in Baghdad governorate

Iraqi Journal of Veterinary Sciences

Aseel M. Al-Rudha¹  Noor A. Altaai²  Nuha K. Khalil³ 

[1] Department ofPublic Health, Veterinary Medicine College, University ofBaghdad, Iraq;Zoonosis Research Unit, Veterinary Medicine College, University of Baghdad, Baghdad, Iraq;Zoonotic Diseases Research Unit, Veterinary Medicine College, University ofBaghdad, Baghdad, Iraq;

关键词: bacteria;    buffalo;    cow;    heavy metals;    iraq;   

DOI  :  10.33899/ijvs.2021.131744.1999

来源: DOAJ

【 摘 要 】

The purpose of this study was to investigate bacterial contamination and heavy metal concentrations in 80 samples of raw milk (cow:40 and buffalo:40) gathered from local markets in Baghdad, Iraq. The culture results were classified into ten categories: E. coli was 100% in each cows and buffaloes, Enterobacter Spp 23.75% (25% cow, 22.5% buffalo), Pseudomonas Spp 13.75% (15% cow,12.5% buffalo), Klebsiella Spp 15% (17.5% cow, 12.5% buffalo), Staphylococcus aureus 12.5% (15% cow, 10% buffalo), Staph. epidermidis 5% (for each cow and buffalo), Proteus spp. 10% (12.5% cows, 7.5% buffaloes), E. coli O157 15% (25% cow, 5% buffalo), Yersinia enterocolitica 3.75% (5% cow, 2.5% buffalo) and Salmonella 13.75% (25% cow 2.5% buffalo). The averages of heavy metals concentrations in cow milk samples were (0.62±0.25), (0.25±0.22), (0.31±0.20) and (21±2) mg/kg and in buffalo milk samples were (0.60±0.3), (0.33±0.15), (0.27±0.11) and (18±2.5) mg/kg for Lead (Pb), Cadmium (Cd), Copper (Cu) and Nickel (Ni) respectively. The high concentrations of pathogenic bacteria and metals found in the milk products is a sign of inadequate hygiene and sanitation during milking and post-milking operations, as well as excessive levels of heavy metal pollution in the environment which will affect meat and milk produced by these animals.

【 授权许可】

Unknown