I.G. Georgiev Department of Non-ruminant Animals and Special Branches, Faculty of Agriculture, Trakia University, Stara Zagora, Bulgaria (Manuscript received 05 June 2025; accepted for publication 04 August 2025) Abstract. The present study evaluated the effect of autumn feeding with

S. Lazarov*, I. Zhelyazkova Department of Animal husbandry – Non-Ruminants and other Animals, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 2 November 2021; accepted for publication 3 February 2022) Abstract. Testing for the level of manif