| Autor: |
Hakem, Ahcène, Yabrir, Benalia, Khelef, Djamel, Laoun, Abbes, Mouffok, Fouzia, El-Gallas, Nazek, Titouche, Yacine, Ben Aissa, Ridha |
| Předmět: |
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| Zdroj: |
Bulletin of the University of Agricultural Sciences & Veterinary Medicine Cluj-Napoca. Veterinary Medicine; 2012, Vol. 69 Issue 1/2, p272-281, 10p, 11 Charts |
| Abstrakt: |
The aim of this study was to investigate the microbial quality of raw milk into two dairies farms of Mitidja (Algeria), in relation with the herd size and milking hygiene (before and after disinfecting the udder). Total 40 individual raw milk samples against 8 mixed were collected. In addition, 62 rinses udder tegument and raw milk samples were also taken, in order to detect Cryptosporidia oocysts and antimicrobial residues. Total Bacterial Count (TBC), Total and Fecal Coliforms (TC and FC) counts in individual raw milk were higher in large farm than in the small one. In contrast, mixed milk appeared more loaded with TBC and Coliforms than in the individual milk (microbial load exceeded more 105 cfu m-1). However, the means numbers of TBC and Coliforms were reduced considerably after disinfecting udder in each farm. However, the risk of bacterial contamination was also decreased significantly after cleaning and disinfecting the udder in both farms, from 11 to 3 positives cases for E. coli, 7 to 1 for Anaerobic Sulfito-Reducing (ASR) and 5 to 1 for Staphylococcus aureus. In contrast, Salmonella and Yeasts were not reduced after disinfecting udder. Cryptosporidia were mostly isolated from udder tegument than in raw milk, 10 vs 3 contaminations respectively. In addition, the disinfection seems to minimize their presence in udder tegument (9 vs 1 contamination) and in raw milk (3 against none contamination). Finally, none of raw milk samples contains antimicrobial residues [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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