Hoffman L C, Fisher P
Department of Animal Sciences, University of Stellenbosch, Private Bag XI, Matieland 7602, South Africa.
Meat Sci. 2001 Nov;59(3):335-7. doi: 10.1016/s0309-1740(01)00055-9.
Comparison of CIELAB colour values of the m. iliofibularis derived from 14 month old and 8 year old ostriches have indicated that an increase in age is accompanied with a significant (P<0.001) reduction in reflectance (L*) and a signiffcant increase in both a* (P<0.001) and b* (P<0.05) values, the meat thus becoming darker and redder with increased age. Comparison with results found in scientific literature suggest that, similar to other species, toughness also increases with age. Warner Bratzler values of the older ostriches were also higher than published results of 14 month old birds (4.44 kg/1.27 cm dia vs. 5.26 kg/1.27 cm dia). Intramuscular fatty acid composition and content of the older ostriches did not suggest any large variations compared with published results for younger (14 month old) ostriches.
对14月龄和8岁鸵鸟的髂胫束肌CIELAB颜色值进行比较,结果表明,随着年龄增长,反射率(L*)显著降低(P<0.001),a值(P<0.001)和b值(P<0.05)均显著增加,因此肉色会随着年龄增长而变得更暗、更红。与科学文献中的结果比较表明,与其他物种类似,肉的韧性也会随着年龄增长而增加。年长鸵鸟的沃纳·布拉茨勒剪切力值也高于已发表的14月龄鸵鸟的结果(4.44千克/直径1.27厘米对5.26千克/直径1.27厘米)。与已发表的较年轻(14月龄)鸵鸟的结果相比,年长鸵鸟的肌肉脂肪酸组成和含量没有显示出任何大的差异。