Wilson L L
Department of Dairy and Animal Science, Pennsylvania State University, University Park 168012-3503.
Vet Hum Toxicol. 1993;35 Suppl 2:29-32.
Current American special-fed veal production methods and the results of a concerted and effective quality assurance effort are reviewed. The veal industry has been successful in markedly reducing the frequency of violative chemical concentrations (including antibiotics) according to Food Safety and Inspection Service (FSIS) monitoring programs. The relation of drug availability and animal well-being is discussed. The need for increased availability of safe and effective treatments, primarily for enteric and respiratory use, is emphasized by the large number of source dairy farms and marketing facilities represented within a group of veal (or dairy-beef) calves started by a producer. The veal calf is a preruminant and as such is not covered by calf/cattle labels; effects of animal age and diet on drug metabolism and excretion are discussed. The greatest need for drugs is during the first 4 to 6 weeks of the 16- to 18-week production cycle, allowing a potential 10- to 14-week withdrawal period for drugs used early in the production cycle. The drugs most frequently used in the veal industry under Extra-Label Drug Use (ELDU) provisions and valid Veterinarian/Client/Patient Relationships (VCPR), most of which have calf/cattle labels are listed.
本文回顾了当前美国特种饲养小牛肉的生产方法以及一系列协调有效的质量保证措施所取得的成果。根据食品安全检验局(FSIS)的监测项目,小牛肉行业已成功显著降低了违规化学物质(包括抗生素)的出现频率。文中讨论了药物可及性与动物福利的关系。由生产商饲养的一群小牛肉犊(或乳肉兼用牛犊)中,大量的奶源农场和销售设施表明,迫切需要增加安全有效的治疗药物,主要用于肠道和呼吸道疾病。小牛肉犊是反刍前动物,因此不在犊牛/牛类标签的涵盖范围内;文中讨论了动物年龄和饮食对药物代谢和排泄的影响。在16至18周的生产周期中,药物需求最大的时期是前4至6周,这使得在生产周期早期使用的药物有10至14周的潜在停药期。列出了小牛肉行业在超说明书用药(ELDU)规定和有效的兽医/客户/患者关系(VCPR)下最常使用的药物,其中大多数都有犊牛/牛类标签。