D. KANEV1, R. NEDEVA1, S. IVANOVA1 and B. SZOSTAK2
1 Agrarian Academy, Agricultural institutte – Shumen, BG - 9700, Shumen, Bulgaria
2 University of Life Sciences in Lublin, Institute of Animal Nutrition and Bromatology, Faculty of Biology and Animal Breeding, 22-950 Lublin, Poland
KANEV, D., R. NEDEVA, S. IVANOVA and B. SZOSTAK, 2016. Effect of high levels distillers dried grains with solubles in performance of fattening pigs. Bulg. J. Agric. Sci., 22: 135–139
The aim of the experiment was to investigate effect of high levels of wheat Distillers Dried Grains with Solubles (wDDGS), waste of fermented wheat grains, used as a source of protein in the compound feed of fattening pigs. A scientific experiment with total 21 pigs from Danube White breed was carried out. The experiment started at 30 kg of live weight (LW) and lasted till animals reached 110 kg LW. Animals were housed individually and fed at libitum. They were allocated to three treatments at 7 animals. First treatment was control (CT). During the growing period, second treatment (ST) and third treatment (TT) – experimental groups were fed by the compound feed containing 300 g.kg-1 wDDGS, replacement of bigger part of soybean meal in the diet. During the fattening period, experimental groups were fed by the compound feed diets containing 133.0 g.kg-1 wDDGS, replacement of 1000 g.kg-1 of soybean meal. In the TT enzyme complex, consisted of endo-1,4-beta-glucanase, endo-1,4-beta-xylanase, endo-1,3(4)-beta-glucanase and lipase, was added. Protein, lysine, calcium and phosphorus were in the same amounts for all three treatments. It was concluded inclusion of 300 g.kg-1 wDDGS as a replacement of soybean meal in the compound feed of growing pigs from 30 to 70 kg LW caused a reduction of the average daily gain (ADG) by 250 g.kg-1 (Р < 0.05) in ST and by 230 g.kg-1 (Р < 0.01) in TT in comparison to CT. Feed conversion ratio (FCR) has been decreased by 280 g.kg-1 (Р< 0.01) in ST and by 250 g.kg-1 (Р < 0.01) in TT in comparison to CT. Enzyme inclusion had no effect on ADG and FCR.