Fedoruk N. Different levels of protein and lysine impact on African ostriches performance and metabolism

Thesis for a degree of a Candidate of Agricultural sciences, specialty 06.02.02 - Animals feeding and fodder technology. - Bila TserkvaNational Agrarian University, Bila Tserkva, 2017. Optimal levels of crude protein and lysine in the fodder for African female ostriches during the oviposition under using raw materials of the forest-steppes of Ukraine have been experimentally determined in the thesis. The expediency of using African female ostriches for diversification of the dietary poultry products production has been scientifically substantiated and experimentally confirmed. African female ostriches productive traits, their eggs morphological and chemical compositionhave been studied. The possibility of physiological (balance) experiments on African female ostrich including studying digestibility of feed nutrients and nitrogen, calcium and phosphorus balance in the ostriches body depending on the level of crude protein and lysine in the fodder has been proved. The evaluation of the blood morphological and biochemical compositionhas been conducted. In order to increase African females ostriches eggs laying capacity they should be fed with the fodder containing 17.0 % of crude protein and 1.1 % of lysine during the oviposition. Keywords: African ostriches, crude protein, lysine, fodder, performance, digestibi-lity, metabolism.