{"title":"Bio-economic models for deriving economic values for sheep: a review","authors":"S. Slavova","doi":"10.15547/ast.2022.03.031","DOIUrl":null,"url":null,"abstract":"Abstract. Selection is an important part of animal breeding and is usually performed on the basis of a set of traits,\neach of them characterized by its BV (breeding value) and EV (economic value). Different approaches have been\nused in recent years for the calculation of the economic values of traits - simple profit functions and more complex\nbio-economic models. The most common approach nowadays is the bio-economic modeling of the production system\ndue to its precision, flexibility, the inclusion of many biological details reflecting the changes in genetic values on overall\nprofitability. The objective of this review is to present and summarize research on calculation of economic values\nfor dairy, meat and indigenous (multipurpose) sheep breeds using bio-economic models. According to the type of\nsheep production, various productive and functional characteristics have been studied. Of particular importance for the\npredominance of a particular trait over others in terms of its contribution to profit on farms are the breed, production\nsystem, climatic conditions, market determinants, demand and supply of sheep products, etc., which may undergo\nchanges over time. For this reason, a recalculation of the economic importance of profit-related traits in sheep is\nneeded for the adaptation of the breeding objectives of the enterprises according to their economic importance.","PeriodicalId":55762,"journal":{"name":"Agricultural Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Agricultural Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15547/ast.2022.03.031","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract. Selection is an important part of animal breeding and is usually performed on the basis of a set of traits,
each of them characterized by its BV (breeding value) and EV (economic value). Different approaches have been
used in recent years for the calculation of the economic values of traits - simple profit functions and more complex
bio-economic models. The most common approach nowadays is the bio-economic modeling of the production system
due to its precision, flexibility, the inclusion of many biological details reflecting the changes in genetic values on overall
profitability. The objective of this review is to present and summarize research on calculation of economic values
for dairy, meat and indigenous (multipurpose) sheep breeds using bio-economic models. According to the type of
sheep production, various productive and functional characteristics have been studied. Of particular importance for the
predominance of a particular trait over others in terms of its contribution to profit on farms are the breed, production
system, climatic conditions, market determinants, demand and supply of sheep products, etc., which may undergo
changes over time. For this reason, a recalculation of the economic importance of profit-related traits in sheep is
needed for the adaptation of the breeding objectives of the enterprises according to their economic importance.
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