Variations of fresh meat quality exist because the quality traits are affected by various intrinsic and extrinsic factors. Because the meat quality is basically dependent on muscle fiber characteristics, numerous studies have reported the relationship between quality traits and fiber characteristics. Despite intensive research, the relationship is yet to be fully established, however, the present knowledge suggests several potential ways to manipulate muscle fiber characteristics to improve meat quality. The present paper reviews the definition of fresh meat quality, meat quality traits and variations of meat quality. Also, this review presents recent knowledge underlying the relationship between fresh meat quality traits and muscle fiber characteristics. Finally, the present work proposes several potential factors including breed, genotype, sex, hormone, growth performance, diet, muscle location, exercise and ambient temperature that can be used to manipulate muscle fiber characteristics and subsequently meat quality in animals.
The objective of the study was to investigate the effects of dietary green tea on chicken meat quality and fatty acid content. Broilers were fed one of the four dietary treatments containing 0, 0.5, 1 and 3 % green tea for 10 days. Crude moisture, crude fat, crude ash, pH, meat color (CIE L * , a * , b * ) and fatty acid composition were measured in chicken breast meat during cold-storage. Crude fat did not differ significantly among treatments. Dietary green tea increased the amount of unsaturated fatty acids and decreased that of saturated fatty acids in chicken meat, resulting in increased ratios of unsaturated fatty acids to saturated fatty acids. The amount of linoleic acid (18:2) and linolenic acid (18:3) was increased with increasing dietary green tea. Lightness (L*), pH, TBARS, VBN, and total plate count were not significantly different during storage. Dietary green tea did not affect storage properties of chicken meat. The results of this study imply that dietary with green tea may have positive effects on chicken meat quality.(Key words : green tea, chicken breast muscle, meat quality) † To whom correspondence should be addressed : gbpark@gsnu.ac.kr
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