G. Ganchev1*, А. Ilchev1, А. Koleva2 1Department of Morphology, Physiology and Animal nutrition, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Technology of cereals, fodder, bread and confectionary products, Technological Faculty, University of

M. Yossifov, L. Kozelov Abstract. Two experiments were conducted to investigate effects of rapeseed meal (RSM) vs. sunflower meal (SFM) as a protein source at cereal-based isonitrigenous (at 16 % CP), iso-caloric at gross energy 18 kcal/kg and net (FUG=1) energy diets for fattening la

A. Kirilov, K. Ivanov Abstract. In production of beer, bio-ethanol or bio-diesel from grain or oil-bearing seeds by-products are obtained having good forage characteristics. The byproducts from brewing and distilling industry, which are rich in protein and are successfully used as pro

А. Ilchev, G. Gаnchev, S. Chobanova, D. Kanakov, P. Petkov, I. Nikiforov Five balance feeding trials were performed to evaluate age-related changes in nitrogen, phosphorus and calcium utilization in growing and fattening male castrated DanBred hybrid pigs. Two commercial phytase prepa

Three balance feeding trials were performed with 3 groups male castrated pigs during the starter, grower and finisher periods. The animals were housed in specially designs individual cages that allowed for separate collection of urine and faeces. Each trial comprised 5 days preliminar