CHEMICAL AND MICROBIOLOGICAL CHARACTERIZATION

OF SLAUGHTERHOUSE WASTES IN MOROCCO

  OUHSSINE M., FAID M.  KHERRATI B. and ELYACHIOUI M.

ABSTRACT

Slaughterhouse wastes including stomach content and blood were studied for their physico-chemical and microbiological characteristics. The total daily production was determined and the amount of blood and solid waste per animal were calculated. The microbiological characteristics including plate count, coliforms, enterococci, Salmonella and Clostridium. Physico-chemical analysises (pH, dry matter, fat, Total nitrogen, ash) were also determined in parallel. Results indicated that the pH was around the neutral (6.2) with a high dry matter content (35.2 - 48%). Fat were also high in content and vary widely from 4.9 to 8.8 %. Proteins were also high in content (9.2 - 13.5 %). Microbial counts of the different groups determined showed a highly contaminated waste. Coliforms and enterococci counts were higher. Salmonella was not detected in the obtained product. Clostridium counts were low but their presence may indicate a potential problem.