1987 Volume 40 Issue 1 Pages 44-48
A total of 88, 853 pigs were sacrificed at a slaughterhous a over a year. Of them, 2, 785 pigs were found to contain blood unfit for human consumption. Laboratory studies suggested that such blood might contain causative bacteria of some infectious deseases and food-borne illnesses, antibiotics and chemotherapeutics. In the unfit blood total bacterial count was 3.8×103/ml (coliform bacteria, 3.3/ml; pathogenic Staphylococci, 2.4/ml; thermoduric bacteria, 1.2/ml; on the average). Clostridium perfringens or salmonellae were not demonstrated. The presence of bacteria at the site of blood collection of the body and on the knife used was presumed to be the cause of blood contamination.
