Published in Scientific Papers. Series D. Animal Science, Vol. LXIII, Issue 2
Written by Ivelina ZAPRYANOVA, Maya IGNATOVA
The purpose of the research was to establish the possibilities for using plant extracts as an alternative of the nutritional antibiotics for growing pigs. Under the conditions of the performed experiment we established that the average live weight at birth was 1,512.4±24.6 g. The average weight of the experiment pigs was 1,459.6±42.9 g at birth, which is almost 80 g less, compared to the control animals. At the end of the sucking period, a higher average live weight by 2.2% is registered for the experiment animals, despite the unreliable differences in the groups. Putting in the biologically active plant supplement increases the average daily gain of the pigs by 4.8% in comparison with the control animals, and the overall gain by 4.6%. The inclusion of the biologically active complex of dry extracts from the plants Cichoria intybus L, Cotinus coggygria L. and Tanacetum vulgare in the mixes of the growing pigs leads to significant decrease of the number of the unwanted microorganisms in the digestive system of the animals – aerobic mesophiles, coliforms, staphylococci and micrococci, and enterococci, etc.
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