MANAGEMENT OF ESCHERICHIA-COLI CAUSED POS TWEANING FACTORIAL DISEASESOF PIGLETS

The most important postweaning factorial diseases are at least partly caused by E. coli. The term postweaning coli complex can be subcategor ized into the following manifestations: postweaning diarrhoea, edema d isease, postweaning wasting and hemorrhagic gastroenteritis. In the pr esented study the effect of prophylactic zootechnique alone and zoo- a nd biotechnique in combination was evaluated during the first weeks po stweaning. The results showed that combined zoo- and biotechnique is s uperior to simple zootechnique regarding food conversion (1.41 kg vers us 1.73 kg), average daily weight gain (390 g versus 325 g) and postwe aning piglet mortality (3.1% versus 4.9%). It is the opinion of the au thors that combined postweaning zoo- and biotechnique should be perfor med in such pig production units where ETEC and/or SLTEC are present.