Rouse J, Rolow A, Nelson C E
Research and Development Department, Kemin Industries, Inc., Des Moines, Iowa 50301.
Poult Sci. 1988 Aug;67(8):1225-8. doi: 10.3382/ps.0671225.
After treatment with a chemical preservative [Myco Curb (Kemin Industries, Des Moines, IA) at .25, .5, .75, or 1.0%], sterilized commercial poultry feed was contaminated with either Salmonella typhimurium ATCC 6994 or with a strain isolated from commercial broiler carcasses. All treatments resulted in the elimination of detectable Salmonella from heavily contaminated feed within 72 h and from lightly contaminated feed within 24 h. Nonsterilized feed showed similar results. Commercial feed fed to broilers for 56 days and inoculated with Salmonella daily for Days 35 to 56 was treated with the chemical preservative at .5 and 1.0% for the last 7 days. Treatment resulted in a reduction of the number of fecal and intestinal samples positive for Salmonella, demonstrating elimination of Salmonella in the feed by use of the feed preservative.
在用化学防腐剂（Kemin Industries公司位于爱荷华州得梅因市生产的Myco Curb，浓度分别为0.25%、0.5%、0.75%或1.0%）处理后，将经过灭菌的商业家禽饲料用鼠伤寒沙门氏菌ATCC 6994或从商业肉鸡胴体分离出的菌株进行污染。所有处理均导致在72小时内从重度污染的饲料中消除了可检测到的沙门氏菌，并在24小时内从轻度污染的饲料中消除了沙门氏菌。未灭菌的饲料也显示出类似结果。给肉鸡喂食56天的商业饲料，并在第35天至第56天每天接种沙门氏菌，在最后7天用浓度为0.5%和1.0%的化学防腐剂进行处理。处理导致粪便和肠道样本中沙门氏菌呈阳性的数量减少，证明使用饲料防腐剂可消除饲料中的沙门氏菌。
