Harms R H, Miles R D
Poult Sci. 1983 Sep;62(9):1896-8. doi: 10.3382/ps.0621896.
Two experiments were conducted with day-old Nicholas Large White turkey poults. A 2 x 3 factorial arrangement of treatments was used in Experiment 1 (0 and 22 ppm of virginiamycin and 0, .06, and .12% supplemental DL-methionine). A 2 x 4 factorial arrangement of treatments was used in Experiment 2 (0 and 22 ppm of virginiamycin and 0, .04, .08, and .12% DL-methionine). A corn-soybean meal diet was used that contained no supplemental choline and a sulfate-free trace mineral mix. The experiments were conducted for 21 days. Body weight was increased by virginiamycin and by all levels of supplemental methionine. However, feed efficiency was not influenced.
用一日龄的尼古拉斯大白火鸡雏进行了两项试验。试验1采用2×3析因处理安排（维吉尼亚霉素分别为0和22 ppm，添加DL-蛋氨酸水平分别为0、0.06%和0.12%）。试验2采用2×4析因处理安排（维吉尼亚霉素分别为0和22 ppm，DL-蛋氨酸水平分别为0、0.04%、0.08%和0.12%）。使用了不含添加胆碱和无硫酸盐微量矿物质预混料的玉米-豆粕型日粮。试验持续21天。维吉尼亚霉素和所有水平的添加蛋氨酸均使体重增加。然而，饲料效率未受影响。
