Abstract:The effects of use of high protein plant feed -Ekofish meal in nutrition of sows in lactation, sucking piglets and weaned piglets were investigated in this paper. Considering our previous positive experiences in use of similar feed in nutrition of weaned piglets and fatteners, objective of this paper was to evaluate the effects of use of high protein feed based on plant proteins in diets for lactating sows, suckling and weaned piglets.Investigated feed was produced according to specific technology in production facilities of the firm Bankom in Serbia.Investigations were carried out on the Experimental pig farm of the Institute for Animal Husbandry, Belgrade-Zemun in Serbia.Obtained results showed that in isonitrogen mixtures the introduction of studied feed as substitute for fish meal had positive effects: by 6,18% lower losses of body mass of sows during lactation, by 1,6 shorter service period, with almost identical gain (difference of 2 g) in suckling piglets, increased consumption of pre-starter by 1,1 kg/litter in piglets during creep feeding, and similar but by 4,73% lower cost of gain with similar feed conversion in weaned piglets.In general, obtained results have shown that use of high protein plant feed can be recommended in nutrition of sows, suckling and weaned piglets.