The cell concentration of bacteria suspended in oil was on average, 3.6)1010 cellrg.
In water, the release of bacteria from the oil-suspended feed was on average, 1.9)109
cellrg, which is 5.3% of the total cell concentration. The viability was not influenced by
storage of the feed for 2 weeks at 48C. The cell concentration of bacteria suspended in
water was on average, 1.4)1010 cellrg, and the release of bacteria from the water-suspended
feed was on average, 1.4)109 cellrg, which is 9.7%. Though we did not
analyse the results statistically, feed prepared with bacteria suspended in oil was chosen
for the feeding trial because of the lower release in water of the bacteria. As a control,
feed was mixed with the same amount of rape seed oil.
Both the LAB feeds, 109 and 1012 CFUrg ŽLAB 109 and LAB 1012 ., were prepared
three times and the viability of the bacteria in the feeds was analysed each time by plate
counting. On average, the feeds contained 2.8)109 and 3.9)1012 CFUrg, respectively.