Agriculture and Agri-Food Canada, Lacombe Research Centre, 6000 C&E Trail, Lacombe, AB, Canada T4L 1W1.
Meat Sci. 2010 Apr;84(4):735-41. doi: 10.1016/j.meatsci.2009.11.009. Epub 2009 Nov 18.
Ninety-six European crossbred steers were fed a barley-based finishing diet for differing lengths of time (34-104 days) to investigate if adding dietary buffer (sodium sesquicarbonate at 1.5% as fed) could improve the trans-18:1 (GC-FID) and CLA (Ag(+)-HPLC-DAD) content and isomeric profile of beef produced. Results indicate that the addition of buffer to diets of cattle fed high concentrate diets has limited effects on the overall fatty acid composition of backfat and muscle tissues. However, buffer addition can help to prevent a 10t- shift by maintaining a better (higher) 11t-/10t-18:1 ratio in both meat and backfat during the first 30-60 days of feeding a high grain diet. Over time, however, the effect is lost becoming equal in tissues from animals with or without buffer addition to their diets.
九十六头欧洲杂交阉牛用大麦基础育肥日粮育肥不同时间（34-104 天），以研究日粮中添加缓冲剂（1.5%的碳酸氢钠）是否可以提高牛肉中反式-18:1（GC-FID）和共轭亚油酸（Ag(+)-HPLC-DAD）的含量和异构体分布。结果表明，在高浓缩饲料日粮中添加缓冲剂对背脂和肌肉组织的脂肪酸组成的总体影响有限。然而，缓冲剂的添加可以通过在高谷物日粮喂养的前 30-60 天内保持更好的（更高的）11t-/10t-18:1 比值，有助于防止 10t-移位，在肉和背脂中均如此。然而，随着时间的推移，这种效果会消失，添加或不添加缓冲剂的动物的组织中，这种比值变得相等。
