The effects of sodium-butyrate on body weight gain, feed conversion, digestibility of nutrients and the composition of the gut flora were investigated in rabbits under farm condition, using 6-week-old weaned, male and female New Zealand White rabbits. Three groups of 30 animals were formed for the fattening trial: control (Group 1), 0.15% (Group 2) and 0.30% (Group 3) sodium-butyrate supplementation in the pelleted feed. The trial lasted 28 days. Immediately after the fattening trial a digestibility study was carried out to determine the nutrients' digestibility coefficients of the three experimental diets, using 5 male rabbits per group. At the end of this experimental period the 15 rabbits were stunned and slaughtered. Samples were taken from the distal part of the ileum and from the cecum, as well as from the wall of the gastric fundus. The feeding of diets containing both 0.15 or 0.30% sodium-butyrate, significantly (p < 0.05) improved the production (body weight gain and feed efficiency). There were no differences between Group 2 and 3. The balance study showed, that the sodium-butyrate supplementation significantly (p < 0.01 or 0.001) improved the digestibility of all major nutritients (crude protein, ether extract, crude fiber and N-free extract). On the basis of the microbiological, mycological and chemical examinations, the best biological status (so called eubiosis, i. e. the optimal ratio and stability of gut organisms) could be found in the animals of group 2. Sodium-butyrate, in a concentration of 0.15% can be a promising bio ("green") feed additive for growing rabbits.
|Translated title of the contribution||Sodium-butyrate as a feed additive in the diets of rabbits|
|Number of pages||5|
|Journal||Wiener Tierarztliche Monatsschrift|
|Publication status||Published - Dec 1 1996|
- Gut flora
ASJC Scopus subject areas