VAVREČKA, J., MAREš, P., ZEMAN, L.: influence of level pea in the diet on performance of piglets. Acta univ. agric. et silvic. Mendel. Brun., 2005, LIII, No. 1, pp. 93-100 The aim of this study was to analyse the level of feeding pea on piglets performance. In the trial the addition of pea varietas breed GOTIK with the highest content of antinutritive factors and commonly used mixture (fed in group G01) was compared. The tentative mixtures contained following amounts of pea: group G9 -9 %,

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... G18 -18 % and group G27 -27 %. The average daily gain were: the control group G01: 0.425 ± 0.110, group G9: 0.395 ± 0.121, group G18: 0.358 ± 0.108 and group G27: 0.315 ± 0.113 kg. Out of these numbers ensues that with higher amount of pea GOTIK the average daily gain was decreasing. In the feed conversion there appeared a similar decrease of efficiency too. In the control group G01 the feed conversion was 2.02 ± 0.10, in group G9 2.16 ± 0.22, in group G18 2.34 ± 0.08 and in group G27 2.46 ± 0.18 kg. Also, with the higher content of GOTIK in feeding mixture the food intake was lower. The differences in efficiency were among the piglets´ gender too. Eventhough grunters have in this age category higher growth rate than gilts, their results were worse. Our opinion is, that this efficiency decrease could be caused by high content of antinutritive factors in GOTIK. Resulting values of gain and feeds conversion indicate feasible substitution of soya-bean meal by feeding pea, and thus decrease the dependence of mixed feed mill on these component´s import in production of feeding mixtures for growing pigs. feeding, piglet, feeding pea, breed GOTIK Ročník LIII 11 Číslo 1, 2005