scholarly journals Carcass characteristics, chemical and fatty acid composition of Longissimus muscle of Purunã bulls slaughtered at 18 or 24 months of age

Author(s):  
Roberto Haruyoshi Ito ◽  
Ivanor Nunes do Prado ◽  
Jesuí Vergílio Visentainer ◽  
Rodolpho Martin do Prado ◽  
Carlos Alberto Fugta ◽  
...  
2002 ◽  
Vol 82 (1) ◽  
pp. 49-57 ◽  
Author(s):  
F. L. Laborde ◽  
I. B. Mandell ◽  
J. J. Tosh ◽  
J. G. Buchanan-Smith ◽  
J. W. Wilton

Crossbred steers (n = 136) were used to evaluate the effect of management strategy on growth performance, carcass characteristics, and fatty acid composition and palatability attributes of beef. Management strategies included: (1) high grain (75% high moisture corn) finishing (HG), or (2) backgrounding with restricted feeding of an alfalfa silage ration for 112 d, followed by HG until slaughter (BKG). Steers were slaughtered at 8–10 mm ultrasound backfat. Backgrounding increased (P < 0.001) days on feed and decreased (P < 0.01) days on grain, average daily gain and longissimus muscle area compared with the HG regime. Slaughter weight, intramuscular fat content, and marbling score were unaffected (P > 0.10) by management strategy. Longissimus muscle palatability attributes and shear force did not differ (P > 0.10) between management strategies, whereas BKG increased (P < 0.03) softness, overall tenderness, chewiness, and rate of breakdown scores, and decreased (P < 0.09) juiciness scores in semitendinosus muscle. Backgrounding increased (P < 0.05) conjugated linoleic acid (CLA), total monounsaturated fatty acids, and 1193 polyunsaturated fatty acid (PUFA), and decreased (P < 0.05) total saturated fatty acids (SFA), and 1196 PUFA content of beef. While the change in quantitative and qualitative fatty acid composition of beef is in line with current dietary recommendations for humans, the magnitude of these changes was minimal. Key words: Beef cattle, diets, carcass composition, fatty acids, longissimus muscle, palatability attributes


1961 ◽  
Vol 20 (4) ◽  
pp. 712-717 ◽  
Author(s):  
R. L. Edwards ◽  
S. B. Tove ◽  
T. N. Blumer ◽  
E. R. Barrick

Heliyon ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. e05942
Author(s):  
Sana Moutik ◽  
Aouatif Benali ◽  
Mohammed Bendaou ◽  
El Haj Maadoudi ◽  
Mohammed Rachid Kabbour ◽  
...  

2016 ◽  
Vol 94 (4) ◽  
pp. 1550-1560 ◽  
Author(s):  
L. Campidonico ◽  
P. G. Toral ◽  
A. Priolo ◽  
G. Luciano ◽  
B. Valenti ◽  
...  

2014 ◽  
Vol 92 (10) ◽  
pp. 4767-4774 ◽  
Author(s):  
S. K. Duckett ◽  
C. Fernandez Rosso ◽  
G. Volpi Lagreca ◽  
M. C. Miller ◽  
J. P. S. Neel ◽  
...  

2015 ◽  
Vol 84 (4) ◽  
pp. 327-336 ◽  
Author(s):  
Radka Dujková ◽  
Yuvaraj Ranganathan ◽  
Aleš Dufek ◽  
Jan Macák ◽  
Jiří Bezdíček

The aim of this study was to evaluate the polymorphic effects of two single nucleotide polymorphisms (SNPs) of fatty acid binding protein (FABP4) and stearoyl-CoA desaturase (SCD) genes on intramuscular fatty acid profiles in the longissimus muscle in two cattle breeds. Two previously reported SNPs of bovine FABP4 (7516G>C) and SCD (878C>T) were in turn assessed for their associations with intramuscular fatty acid profiles from the upper sirloin cuts of Aberdeen Angus and Blonde d’Aquitaine cattle. In total, 33 animals were genotyped using PCR-RFLP. Intramuscular fatty acid composition was evaluated using two complementary statistical approaches: a classical univariate regression model and a multivariate approach using a combination of Principal Component Analysis and Random Forests. Significant effect of FABP4 SNP genotypes was found for several fatty acids including C15:0, C17:0, C18:0, C14:1, C17:1, C18:2n6, C20:4n6, C20:5n3, C22:5n3, total n-3, n-6 and total SFA (P < 0.05). These results suggest that FABP4 is a potential candidate gene affecting fatty acid composition in beef cattle.


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