[Effectiveness of Rhodovet for the prevention of coli enterotoxemia in a swine breeding facility]. / Effektivität von Rhodovet zur Prophylaxe der Colienterotoxämie in einer Schweinezuchtanlage.

The coli enterotoxemia caused by Coli serotype 0139 occurred in contrary to the generally observed course of this infection through several weeks and was exceedingly detrimental. Almost exclusively the shock and oedema form of coli enterotoxemia was seen. The application of usual schemes of prophylaxis and therapy did not effect durable reduction of animal losses. With the daily oral application of Rhodovet, a drug containing thiocyanate, in doses of 3.5 kg/t feed during 5 weeks the morbidity resp. mortality could be decisively reduced.

[Artificial intranasal bacterial invasion in the newborn calf. 2. Artificial bacterial invasion using gram-positive and gram-negative strains]. / Untersuchungen zue künstlichen intranasalen Keimbesiedlung beim neugeborenen Kalb. 2. Künstiliche Keimbesiedlung mit grampositiven und gramnegativen Stämmen

A micrococcal and a diplocaccal strain isolated from the nasal space of a clinically intact nursed calf were used for artificial bacterial invasion in the first phase of the experiment. Application of bacterial suspension prepared from those strains had no effect upon the rise of coli counts in the nasal secretion of nursed calves during their first days of age nor upon the morbidity or mortality of all 677 test animals in comparison to 665 controls. Therefore, an avirulent E.-coli strain was used in subsequent bacterial invasion experiments. The strain was retrievable up to the seventh day of age, the count having been about 10(5) bacteria per gram nasal secretion. Application of a bacterial suspension prepared from that E.-coli strain did not reduce morbidity and mortality among 820 test animals that were compared to 809 controls. Results are discussed in this paper with reference to literature.