The Effect of Species and Sex on the Element Content of Muskox (Ovibos Moschatus) and Caribou (Rangifer Tarandus Groenlandicus) Tissues

Overview

Journal Biol Trace Elem Res

Date 2023 Jan 16

PMID 36646938

Authors

David Miguel Ribeiro

Katrine Raundrup

Miguel P Mourato

Andre M Almeida

Affiliations

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Abstract

Muskox (Ovibos moschatus) and caribou (Rangifer tarandus groenlandicus) are wild ruminants that inhabit the Greenland tundra. They are part of the diet of many Greenlanders, being important sources of protein and micronutrients such as iron. The objective of this study is to analyse the element profiles of three tissues from these species: skeletal muscle, liver and adipose tissue, and to determine if they are affected by species and sex (male vs. female). Samples were obtained from annual hunts in two different regions of West Greenland. Element profiles were analysed using inductively-coupled plasma-optical emission spectrometry. The interaction between species and sex was only detected in Na (sodium) in the muscle and adipose tissue, where male and female caribou had the highest concentrations, respectively. The effect of sex was not statistically significant in the liver samples and only occasionally in the other tissues. Species was the most relevant factor in element profiles found in this study. Caribou had higher concentrations of K (potassium) and S (sulphur) in the muscle and liver. Fewer differences were detected between species in the adipose tissue, compared to the other tissues. These differences may reflect the feeding behaviour and the geographical location of both species. This study contributes to evaluate the element composition of the edible tissue of these wild ungulate species, as well as evaluating the factors of sex and species that could differentiate their composition.

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