The influence of fattening periods on chemical composition, fatty acid profile, cholesterol and ribonucleotide content of Charolaise crossbred steers
2022
Thiwaratkoon, P. | Chongcharoen, M. | Sitthigripong, R. | Setakul, J. | Vijitrothai, N. | Kongrith, C. | Sivapirunthep, P. | Chaosap, C.
The chemical composition, fatty acid profile, cholesterol, and ribonucleotide content of longissimus thoracis muscle from Charolaise crossbred steers fattened for 12 and 15 months were investigated. Chemical composition did not differ between the two fattening periods. Fat content was 4.38 and 4.66 %, moisture content 72.79 and 71.14 %, ash content 1.24 and 1.23 %, and protein content 23.60 and 23.73 % for fattening periods of 12 and 15 months, respectively. Fatty acid composition was not affected by fattening period, except that C15:0 content was higher in steers fattened for 12 months than in steers fattened for 15 months (P < 0.05). There was no effect of fattening period on cholesterol content (P > 0.05). As for the effect of fattening period on ribonucleotide content, only guanosine monophosphate (GMP) of steers fattened for 12 months was significantly higher than those of steers fattened for 15 months (P < 0.05)
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