Biomedical subjects
R J Terbijhe
Publications and source records attributed to R J Terbijhe.
[She does behave funny, but she is no 'crazy cow' (BSE)].
Since 1999 18 cows with 'crampiness' were presented for clinical inspection. Most animals were called upon because of clinically 'suspected BSE' by the local veterinary practitioner. The clinical picture of the disease and the differences with BSE are discussed.
[BSE: clinical diagnosis and field experience].
The clinical diagnosis 'suspected of having BSE' is difficult. Cows older than 2.5 years, presented to the private veterinary practitioner with disturbed locomotion present for more than 14 days and with no detectable cause, should be investigated with suspicion. Questions on changes in behaviour of the animal and during the examination attention on exaggerated responses to handling and sound can give additional information. Notification of suspected cases and gained field experiences are discussed.
Removing faecal contamination of broilers by spray-cleaning during evisceration.
1. The faecal contamination of broiler carcasses during evisceration results in an increase in contamination with Enterobacteriaceae, including any salmonellas present. 2. This increase can be prevented completely by spray-cleaning carcasses during the various stages of evisceration. 3. If the carcasses are cleaned only at the end of the evisceration process, the numbers of Enterobacteriaceae are not reduced to initial levels and Salmonella contamination is less efficiently removed.
[Bacteriological features in evisceration of broilers (author's transl)].
The total aerobic bacterial count and the number of Enterobacteriaceae in the pericloacal skin of broilers did not show any fundamental changes resulting from the processes of evisceration studied, averaging 5.3 logN/gram and 4.0 logN/gram respectively. The interior organs such as the liver and heart were severely contaminated, particularly by the evisceration proper and manual removal of the intestines. There are fairly marked differences in levels of contamination between the portions of skin sampled, which differences are levelled out to some extent during the process of evisceration. Possible causes of the differences in levels of contamination are stated.
[Inspection of "christmass rabbits" (author's transl)].
403 "Christmass rabbits" slaughtered in a public slaughter-house were inspected. The average age of the rabbits was eleven months, the average weight being 4.3 kg. (Rabbits raised for commercial purposes are slaughtered when they are approximately three months and weigh 2.5 kg.). Pathological changes were observed in 34 per cent of the animals after slaughter; these changes were mainly due to parasites. Of all rabbits which were inspected, 77 per cent were passed for food; 13 per cent were only passed after some parts of the animals had been removed (mainly livers showing coccidiosis); 8 per cent were conditionally admitted and 2 per cent were condemned. Moreover, 120 traditionally raised rabbits and 120 rabbits raised for commercial purposes were examined for the presence of Salmonella in the faeces and the wall of the rectum. No Salmonella organisms were detected.
[Effect of cleaning and disinfection in poultry processing plants (author's transl)].
The use of agar print plates was found to be suitable for checking the results of several cleaning and disinfection systems. Some poultry processing plants were tested several times with agar prints, as a control of the results of the cleaning and disinfection program. It seems that cleaning exclusively with water leads to no reduction of micro-organisms, in spite of a reasonable visual effect. Cleaning with cleansers produces a small micro-biological reduction. Really sterile surfaces however were only observed when, after cleaning with cleansers, disinfection was employed.