The objective of this study was to evaluate the effects of dietary selenium supplementation (organic and inorganic) on carcass characteristics and meat quality in ruminants. The data sources for this meta-analysis originated from several databased (Scopus, PubMed, and Google Scholar), searched for the keywords: “selenium”, “supplementation”, “meat”, “cattle”, “goat” and/or “sheep”. The results of meta-analysis were statistically analysed using mixed model methodology. After assessing compliance with the objectives of the work and research topic, a total of 19 articles (out of 26 studies) were selected and included in the database. Individual studies were treated as random effects, whereas Se levels were considered fixed effects. The results showed that Se supplementation increased hot carcass weight and rib eye area (P < 0.01). The weight of the fore shank and testicles was also increased due to Se supplementation (P < 0.05); however, dietary Se addition decreased rib and lung weight (P < 0.05). With regard to meat quality, Se addition increased total Se level in meat (P < 0.01), decreased the concentration of thiobarbituric acid reactive substances and cooking loss percentage (P < 0.05). However, the addition of Se did not affect the majority of carcass cuts (saddle, breast, loin, legs, and rack), which had similar proximate parameter values and cholesterol levels. It can be concluded that Se supplementation can improve carcass and meat quality in ruminants.
We would like to thank the Animal Feed and Nutrition Modelling Research Group, Faculty of Animal Science, IPB University, Indonesia for providing a platform for collaboration between research fellows across various institutions. This research was also the result of collaboration between the Research Center for Food Technology and Processing, and the Research Center for Animal Husbandry, National Research and Innovation Agency of Indonesia.
The Authors declare that there is no conflict of interest.
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