Effect of extruded feed EXTRAFLOAT 42/12 supplemented with prebiotic on African catfish (Clarias Gariepinus) growth performance, feed conversion ratio and wellness

Author of the thesis: Ernestas Katilauskas, master student of Animal Husbandry Technology study program. Supervisor of the thesis: Ieva Kudlinskienė. Institution of studines - – Lithuanian University of Health Sciences, Veterinary Academy, Faculty of Animal Husbandry Technology, Institute of Animal Rearing Technologies. Revalence of the topic. Effect of extruded feed EXTRAFLOAT 42/12 suplemented with prebiotic on African catfish (Clarias Gariepinus) growth performance, feed conversion ratio and wellness Keywords: African catfish, fish feeds, recirculating aquaculture systems. Aim of the thewsis – investigate the effect of extruded feed EXLTRAFLOAT 42/12, supplemented with prebiotic Agrimos, on African catfish (Clarias gariepinus) growth intensity, feed conversion, development of anatomical parts of the body and morphological parameters of blood. Objectives of the thesis: 1. determine the effect of control and extruded feed EXTRAFLOAT 42/12, supplemented with prebiotic Agrimos, on the growth intensity; 2. calculate the conversion of control and extruded EXTRAFLOAT 42/12, supplemented with prebiotic Agrimos, feeds; 3. calculate the effect of control and extruded feed EXTRAFLOAT 42/12, supplemented with prebiotic Agrimos, on African catfish anatomical body parts indices; 4. determine the influence of different feedingstuffs on the morphological composition of blood of African catfish. The method of research. The scientific work was carried out during the period of 2017 - 2018 at the Institute of Animal Husbandry in Aquaculture Laboratory of the Lithuanian Institute of Animal Science. Morphological blood tests were performed at the LSMU VA Laboratory of Large Animal clinic. The test consisted of two periods: 45 days of primary growth and 120 days of the test. Control group fish were fed extruded feed for African catfish \"X\", the experimental group were fed extruded feed EXTRAFLOAT 42/12 supplemented with prebiotic Agrimos. Results. 1. Average weight, after the experiment, of test group, fed with EXTRAFLOAT 42/12 supplemented with prebiotic Argrimos, was 176,78 g or 13,89 perc. Higher then control group (p0,05). Structure and volume of the thesis: Thesis consist of: preface, 4 chapters, that represents literature analysis, research methods, results, discussion, conclusions, recommendations, literature sources list. Literature sources list consists of 88 positions. Extent of thesis: 53 pages, 17 tables, 8 pictures, 1 scheme