Evaluation of feed product GoldEdge+ as antimicrobial agent

在过去的几年里，抗生素在农业中的使用发生了许多变化。最值得注意的是，所有用于兽医的重要医学抗生素现在都只能通过处方获得。这些变化和其他变化导致动物饲料中抗生素的减少或消除。抗生素在饲料中的使用已有几十年的历史，它们的使用显示出非常积极的治疗效果，例如提高了饲料转化率，降低了发病率，并减少了加拿大牲畜的临床和亚临床疾病。随着对抗生素使用的新限制，加拿大畜牧业正在积极寻找抗生素的替代品，将其添加到饲料中，发挥“生长/健康促进剂”的作用。Proveta Nutrition有限公司有一种名为GoldEdge+的产品，它可以提高蛋鸡的产蛋量，这表明它可能会对蛋鸡的生产力和健康产生积极的影响。我们将进行微生物分析，以确定杀死或抑制现场分离的大肠杆菌、鼠伤寒沙门氏菌、肠炎沙门氏菌、猪链球菌、产气荚膜梭菌和细胞内劳森杆菌所需的GoldEdge+的最低抑制浓度。这种细菌可以感染家禽、猪和牛，因此有关GoldEdge+抗菌活性的信息可能会潜在地影响加拿大的几个畜牧业。

The use of antibiotics in agriculture has seen many changes over the last few years. Most notably, all medically important antibiotics for veterinary use can now only be obtained by prescription. These and other changes led to the reduction or elimination of antibiotics in animal feed. Antibiotics in feed has been used for decades and their use has shown very positive therapeutic effects, such as improved feed conversion, reduced morbidity, and less clinical and subclinical disease in Canadian livestock. With the new restrictions on antibiotic use, Canadian livestock industries are actively seeking alternatives to antibiotics to add to feed to act as 'growth/health promoters'. Proveta Nutrition, Ltd. has a product called GoldEdge+ that improved the number of eggs produced by layer chickens which suggests that it may positively impact their productivity and health. We will perform microbiological analyses to determine the minimum inhibitory concentration of GoldEdge+ needed to kill or inhibit the growth of field isolates of Escherichia coli, Salmonella Typhimurium, Salmonella Enteritidis, Streptococcus suis, Clostridium perfringens and Lawsonia intracellularis. The bacteria can infect poultry, pigs and cattle so information on GoldEdge+ antimicrobial activity on them may potentially impact several of Canada's livestock industries.