Relationship between beta ‐adrenergic agonists, calpain system activity and beef texture: A systematic review

The objective was to conduct a systematic review to evaluate the effects of dietary supplementation with beta ‐adrenergic agonists on calpains and calpastatin activity in bovine muscle and changes in meat tenderness. A survey was conducted in June 2019 on Science Direct, Web of Science, Scopus, PubMed and Capes Periodicals, using four keyword combinations: agonist and calpain and cattle; agonist and calpa in and bovine; agonist and calpain and heifers; agonist and calpain and steers. Thirteen studies were selected, 54% concluded that supplementation with beta‐adrenergic agonists increases calpastatin activity, 23% observed increase in their gene expression and 23% reported no effect on activity or expression of this enzyme. Nine studies evaluated the influence of beta‐adrenergic agonists supplementation on meat texture and all found an increase in shear force values. There is strong evidence that beta‐adrenergic agonists may increase calpastatin activity in the muscle, causing damage to m eat tenderness.
Source: Journal of Animal Physiology and Animal Nutrition - Category: Zoology Authors: Tags: ORIGINAL ARTICLE Source Type: research