Zhelyazkov, Georgi, AND 		Stoev, Tsvetan.
" Proximate and fatty acid composition of meat from rainbow trout (Oncorhynchus mykiss W.) after dietary supplementation with black pepper (Piper nigrum L.) extract" <em>Food Science and Applied Biotechnology</em> [Online], Volume 5 Iss. 2 (13 October 2022)