Effects of the fattening period on the fatty acid composition of fat deposits and free amino acid and inosinic acid contents of the longissimus muscle in carcasses of Japanese Black steers

Effects of the fattening period on the fatty acid composition of fat deposits and free amino acid and inosinic acid contents of the longissimus muscle in carcasses of Japanese Black steers

ABSTRACT The effects of the fattening period on carcass characteristics, fatty acid composition of fat deposits, and muscle free amino acid (FAA) and inosinic acid (IMP) contents were evaluated in Japanese Black steers. Ten castrated, 10‐month‐old calves derived from the same sire were divided into...

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Veröffentlicht in:Animal science journal 2009-08, Vol.80 (4), p.411-417
Hauptverfasser: IWAMOTO, Eiji, OKA, Akio, IWAKI, Fumiyuki
Format: Artikel
Sprache:eng
Schlagworte:
Amino Acids - analysis
Animal Feed
Animal sciences
Animals
Cattle
Cattle - metabolism
Fats - analysis
fattening period
Fatty acids
free amino acids
Inosine Monophosphate - analysis
inosinic acid
Male
Meat industry
Muscle, Skeletal - chemistry
Muscular system
steers
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Zusammenfassung:ABSTRACT The effects of the fattening period on carcass characteristics, fatty acid composition of fat deposits, and muscle free amino acid (FAA) and inosinic acid (IMP) contents were evaluated in Japanese Black steers. Ten castrated, 10‐month‐old calves derived from the same sire were divided into five to be slaughtered at the age of 30 months after a 20‐month fattening period (20‐month group) and five to be slaughtered at the age of 34 months after a 24‐month fattening period (24‐month group). Concerning the fatty acid composition of subcutaneous fat, the percentage of palmitoleic acid was higher (P 
ISSN:1344-3941
1740-0929
DOI:10.1111/j.1740-0929.2009.00648.x