A stereological study: Volume estimation in the cerebellum of Norduz sheep Norduz sheep: A stereological study

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Published: Oct 21, 2024
DOI: https://doi.org/10.12681/jhvms.33319
Keywords:
Cavalieri’s Principle cortex medulla nervous system volume
M Kiran
Department of Veterinary Anatomy, Health Sciences Institute, University of Yuzuncu Yil, Van, Türkiye
G Cakmak
Department of Anatomy, Faculty of Veterinary Medicine, University of Yuzuncu Yil, Van, Türkiye
Abstract

Evaluation of fish nutrient content could provide essential guidance for the consumption of fish and protection of human health. This study investigated the biochemical composition and fatty acid profiles (FA) of three native trout species: Salmo rizeensis, Salmo ardahanensis, Salmo coruhensis. This is the first study to characterize FA content and lipid quality indices of S. rizeensis, Salmo ardahanensis, and S. coruhensis. The highest crude protein and crude fat were found in S. ardahanensis and S. rizeensis, respectively. Although there was no significant difference (p < 0.05) among trout species on crude protein, the crude fat content of S. rizeensis was significantly higher (p < 0.05) than the other species. The FA compositions of trout species ranged from 29.22% to 40.12% saturated FAs (SFA), 27.57% to 37.67% monounsaturated FAs (MUFA), and 26.54% to 28.41% polyunsaturated FAs (PUFA). The most dominant FAs were palmitic acid (C16:0) among SFAs, oleic acid (C18:1n9c) among MUFAs, and linoleic acid (C18:2n6c), eicosapentaenoic acid (EPA; C20:5n3) and docosahexaenoic acid (DHA; C22:6n3) among PUFAs. These species were found to be rich sources of EPA+DHA in the range of 10.49-15.58%. The highest fish lipid quality index (FLQ) and EPA+DHA content was found in S. ardahanensis, while the highest h/H value was found in S. coruhensis. The atherogenic index, thrombogenic index, and ∑n3/n6 ratio of all species were within the limit range reported by international organizations. These results showed that all trout species used in this study could be considered as a beneficial and balanced food source for human consumption and future fish farming in terms of rich protein content, FA ratio, and lipid quality indices.

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