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ISSN 1392-2130. VETERINARIJA IR ZOOTECHNIKA. T. 4 (26). 1997 

 

THE EFFECT OF ‘LACTOSAN’ ON THE TOTAL NUMBER OF LACTOBACILLUS AND 

ENTEROBACTERIA IN THE RECTUM CONTENT OF HEALTHY AND SUFFERING 

FROM DIARRHEA CALVES 

 

A. Sederevičius, J. Kantautaitė, R. Sutkevičienė, L. Raškevičienė 

 

Summary. The preventive effect of „Laktosan“ on clinically healthy calves and the effectivity of this preparation in 

treating the calves suffering from diarrhea have been studied. The total number of Lactobacteria and Enterobacteria in 

the content of rectum of 16 calves was investigated. 

„Lactosan“ is a liophilized bacterial preparation consisting of two strains of Lactobacillus - L. plantarum and L. 

fermentum. Sick calves were given two doses of the preparation per os twice daily for three consecutive days. One dose 

contains 0,5 g of liophilized preparation, having 13,6 log Lactobacillus per g. Healthy cows were given 1 dose of the 

preparation once a day for two days. „Etrovitin“ and „Trimerazin“ were applied for the treatment of sick calves in the 

control group. 

It was determined that „Lactosan“ positively effects the endoflora of the digestive tract of calves - the total number 

of  Lactobacteria  increased in healthy calves (p <0,01) as well as in sick ones (p < 0,001). The total number of 

Lactobacillus was restored in a three day period, while with the commonly used medicine the total number of 

Lactobacteria and Lactobacillus was lower (p < 0,01) after the same period of treatment. 

It was also determined that the total number of Lactobacillus in the rectum content of the sick calves decreased 

compared to the healthy ones (p < 0,01). The interrelationships between Enterobacteria and Lactobacillus had changed 

as well. 

Keywords: calves, diarrhea, lactobacillus, enterobacterium.