Waldroup P W, Hellwig H M, Johnson Z B, Fell R V, Grant R J, Damron B L, Hebert J A, Siccardi F J, Primo R A
Department of Animal Sciences, University of Arkansas, Fayetteville 72701.
Poult Sci. 1987 Oct;66(10):1640-3. doi: 10.3382/ps.0661640.
Studies were conducted at six locations over a 7-yr period to evaluate the response of broiler chickens to bacitracin methylene disalicylate (BMD) and roxarsone in the presence of diets containing 3 ppm halofuginone/kg feed. Treatments consisted of a 2 x 2 factorial arrangement with 0 or 55 mg BMD and 0 or 50 mg roxarsone/kg feed. These additives were fed beginning with day-old chicks and were removed 6 days before termination of the study, which varied in length from 48 to 56 days among locations. Body weights were significantly improved (P less than .05) by the addition of either BMD or roxarsone with a significant interaction (P less than .05) between BMD and roxarsone. Roxarsone improved body weights only in the presence of BMD. Feed utilization was significantly (P less than .05) improved by addition of either BMD or roxarsone, with no interaction between the two products.
在7年时间里于6个地点开展了研究，以评估在含有3 ppm卤夫酮/千克饲料的日粮存在的情况下，肉鸡对杆菌肽亚甲基二水杨酸酯（BMD）和洛克沙胂的反应。处理采用2×2析因设计，饲料中BMD含量为0或55毫克/千克，洛克沙胂含量为0或50毫克/千克。这些添加剂从雏鸡开始饲喂，并在研究结束前6天停用，各地点的研究时长从48天到56天不等。添加BMD或洛克沙胂均显著提高了体重（P<0.05），且BMD和洛克沙胂之间存在显著交互作用（P<0.05）。洛克沙胂仅在有BMD存在时才提高体重。添加BMD或洛克沙胂均显著（P<0.05）提高了饲料利用率，两种产品之间无交互作用。
