The response of turkey poults to virginiamycin in diets containing various levels of supplemental methionine.
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.
D000818:Animals; D001835:Body Weight / Q000187:drug effects; D004032:Diet; D005503:Food Additives; D008715:Methionine / Q000008:administration & dosage*; D013237:Stereoisomerism; D014422:Turkeys / Q000502:physiology*; D014769:Virginiamycin / Q000494:pharmacology*
D005503:Food Additives; D014769:Virginiamycin; D008715:Methionine