title: Persistent organochlorine pesticides residues in cow and goat milks collected from different regions of Ethiopia.
abstract: The present study investigated the bioaccumulation of organochlorines in two milk-producing animals (goats and cows) grazed on the same feed to explore the extent of organochlorines availability in milk and any species effect on the bioaccumulation pattern. Six organochlorine pesticides: aldrin, α-endosulfan, β-endosulfan, p,p'-DDE, o,p'-DDT and p,p'-DDT were determined in samples collected from four regions in Ethiopia. Aldrin (11.6μgkg(-1)) was detected only in one cow milk sample and α-endosulfan was detected in one goat milk sample at a level of 142.1μgkg(-1), and in one cow milk sample (47.8μgkg(-1)) from the same region. p,p'-DDE was detected in 40% of the milk samples analyzed while o,p'-DDT and p,p'-DDT were found in high amounts in almost all samples. The average total DDT (excluding DDD) in the samples was 328.5μgkg(-1). Regions known for their malaria epidemics were the most contaminated with DDT residue. The accumulation pattern in both species was not clear under natural sampling.
authors.affiliation: Department of Pharmaceutical Chemistry, School of Pharmacy, Jimma University, Ethiopia.
authors.forename: Habtewold
authors.initials: H
authors.lastname: Deti
authors.affiliation: Department of Pharmaceutical Chemistry, School of Pharmacy, Addis Ababa University, Ethiopia.
authors.forename: Ariaya
authors.initials: A
authors.lastname: Hymete
authors.affiliation: Department of Pharmaceutical Chemistry, School of Pharmacy, Addis Ababa University, Ethiopia; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt. Electronic address: adnbekhit@hotmail.com.
authors.forename: Adnan A
authors.initials: AA
authors.lastname: Bekhit
authors.affiliation: Department of Pharmaceutical Chemistry, School of Pharmacy, Addis Ababa University, Ethiopia; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Assuit, Egypt.
authors.forename: Abdel Maaboud I
authors.initials: AM
authors.lastname: Mohamed
authors.affiliation: Food Science Department, University of Otago, Dunedin, New Zealand.
authors.forename: Alaa El-Din A
authors.initials: Ael-D
authors.lastname: Bekhit
mesh_terms: D000818:Animals; D002417:Cattle / Q000378:metabolism*; D005002:Ethiopia; D005260:Female; D006041:Goats / Q000378:metabolism*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis / Q000737:chemistry / Q000493:pharmacokinetics*; D008892:Milk / Q000737:chemistry / Q000378:metabolism*; D010573:Pesticide Residues / Q000032:analysis / Q000493:pharmacokinetics*; D010575:Pesticides / Q000032:analysis / Q000737:chemistry / Q000493:pharmacokinetics*
chemical_list: D006843:Hydrocarbons, Chlorinated; D010573:Pesticide Residues; D010575:Pesticides
keywords: Cow; Goat; Milk; Organochlorines