Study of beef blade muscles' differentiation depending on conformation and fat class

Dominika GUZEK, Dominika GLABSKA, Ewa LANGE, Krzysztof GLABSKI, Agnieszka WIERZBICKA
445 144


The object of this study was to identify variation of the intramuscular fat and connective tissue content in different blade muscles in carcasses characterized by various quality grades. It was found that there is a cumulative impact of muscle and conformation class on intramuscular fat in blade muscle (P = 0.0330), as well as type of muscle and fat class (P = 0.0424), but there is no cumulative impact of conformation class and fat class (P = 0.1788). There is no cumulative influence of muscle type, conformation class, and fat class on amount of connective tissue in blade muscle, but the infraspinatus muscle was characterized by the highest quantity of connective tissue. The differences in the content of intramuscular fat in blade muscles depend on type of muscle as well as fat or conformation class, but there is no cumulative effect of fat and conformation class.


Key words: Connective tissue, conformation class, fat class, computer image analysis

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Eriksson S, Näsholm A, Johansson K, Philipsson J. Genetic analyses of field recorded growth and carcass traits for Swedish beef cattle. Livest Prod Sci 2003; 84: 53–62.

Tarrés J, Fina M, Varona L, Piedrafita J. Carcass conformation and fat cover scores in beef cattle: A comparison of threshold linear models vs grouped data models. Genet Sel Evol 2011; 43: 16–

Harper GS, Pethick DW. How might marbling begin? Aust J Exp Agr 2004; 44: 653–662.

Koots KR, Gibson JP, Wilton JW. Analyses of published genetic parameter estimates for beef production traits. 2. Phenotypic and genetic correlations. Anim Breed Abst 1994; 62: 825–853.

Platter W, Tatum J, Belk K, Chapman P, Scanga J, Smith G. Relationships of consumer sensory ratings, marbling score, and shear force value to consumer acceptance of beef strip loin steaks. J Anim Sci 2003; 81: 2741–2750.

Hocquette JF, Renand G, Levéziel H, Picard B, Cassar-Malek I. The potential benefits of genetics and genomics to improve beef quality – a review. Anim Sci Pap Rep 2006; 24: 173–189.

Andersen HJ, Oksbjerg N, Therkildsen M. Potential quality control tools in the production of fresh pork, beef and lamb demanded by the European society. Livest Prod Sci 2005; 94: 105–124.

Lorenzen C, Miller R, Taylor J, Neely T, Tatum J, Wise JW, Buyck MJ, Reagan JO, Savell JW. Beef customer satisfaction: trained sensory panel ratings and Warner-Bratzler shear force values. J Anim Sci 2003; 81: 143–149.

Purslow PP, Archile-Contreras AC, Cha MC. Manipulating meat tenderness by increasing the turnover of intramuscular connective tissue. J Anim Sci 2012; 90: 950–959.

European Commission. EC No 1249/2008 - Commission Regulation EC No 1249/2008 of 10 December 2008 laying down detailed rules on the implementation of the Community scales for the classification of beef, pig and sheep carcasses and the reporting of prices thereof. Brussels, Belgium: European Commission; 2008.

Guzek D, Głąbska D, Głąbski K, Plewa P, Plewa R, Wierzbicka A. Comparison of sarcomere length for two types of meat from animal family Suidae - analysis of measurements carried out by microscopic technique. Adv Sci Technol Res J 2012; 6: 13–17.

Méndez RD, Meza, CO, Berruecos JM, Garcés P, Delgado EJ, Rubio MS. A survey of beef carcass quality and quantity attributes in Mexico. J Anim Sci 2009; 87: 3782–3790.

Bohuslávek Z. Estimation of EUROP - conformation and fatness of beef carcasses by bioelectrical impedance analysis. Czech J Anim Sci 2002; 47: 155–159.

Totland GK, Kryvi H. Distribution patterns of muscle fibre types in major muscles of the bull Bos taurus. Anat Embryol 1991; 184: 441–450.

Klopfenstein T, Cooper R, Jordon DJ, Shain D, Milton T, Calkins C, Rossi C. Effects of backgrounding and growing programs on beef carcass quality and yield. J Anim Sci 2000; 77: 1–11.

Gregory KE, Cundiff LV, Koch RM. Genetic and phenotypic co variances for growth and carcass traits of purebred and composite populations of beef cattle. J Anim Sci 1995; 73: 1920–1926.

Fukumoto GK, Kim YS. Carcass characteristics of foragefinished cattle produced in Hawai‘i. Food Safety Tech 2007; 25: 1–

UNECE. Standard Bovine Meat Carcasses and Cuts. New York and Geneva: UN Working Party on Agricultural Quality Standards; 2004.

Sullivan GA, Calkins CR. Ranking beef muscles for WarnerBratzler shear force and trained sensory panel ratings from published literature. J Food Quality 2011; 34: 195–203.

Nishimura T, Hattori A, Takahashi K. Relationship between degradation of proteoglycans and weakening of the intramuscular connective tissue during post-mortem ageing of beef. Meat Sci 1996; 42: 251–260.

Del Moral FG, O’Valle F, Masseroli M, Del Moral RG. Image analysis application for automatic quantification of intramuscular connective tissue in meat. J Food Eng 2007; 81: 33–

Prost E, Pełczynska E, Kotula AW. Quality characteristics of bovine meat I. Content of connective tissue in relation to individual muscles, age and sex of animals and carcass quality grade. J Anim Sci 1975; 41: 534–540.

Buford M, Calkins C, Johnson D, Gwartney B. Cow muscle profiling: processing traits of 21 muscles from beef and dairy cow carcasses. Nebr Beef Cattle Rep 2003; 223: 71–74.