Lopes Ricardo, Kruse Amanda Brinch, Nielsen Liza Rosenbaum, Nunes Telmo Pina, Alban Lis
Faculty of Veterinary Medicine, Department of Animal Production and Food Safety, Centre for Interdisciplinary Research in Animal Health (CIISA), University of Lisbon, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal.
Faculty of Health and Medical Sciences, Department of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 8, 1870, Frederiksberg C, Denmark.
Prev Vet Med. 2019 Aug 1;169:104702. doi: 10.1016/j.prevetmed.2019.104702. Epub 2019 May 25.
In modern livestock farming, there is an increasing understanding that antimicrobial (AM) consumption must be kept low - preferably without compromising animal welfare or productivity. This requires an understanding of the relationship between AM use, productivity, biosecurity, vaccination and herd demographics. To obtain this, we undertook an Additive Bayesian Network analysis using data from 2014 to 2015, covering 157 Danish sow herds with weaners. In general, productivity and biosecurity were high, and AM consumption low. No association was found between prescribed AM and productivity. Other variables, such as biosecurity and enrolment in the Danish Specific Pathogen Free (SPF) system, had stronger associations with sow productivity than AM consumption. In the weaner unit, an association between AM consumption and certain vaccination practices was found, suggesting that vaccines might be used to control preexisting problems. The results reveal that most Danish sow producers are able to maintain productivity while using low amounts of AMs. This conclusion must be interpreted within the context of Danish pig farming i.e. generally high biosecurity and many years of official restrictions aiming at reducing AM consumption.
在现代畜牧业中，人们越来越认识到必须保持低水平的抗菌药物（AM）使用量——最好是在不损害动物福利或生产力的前提下。这需要了解抗菌药物使用、生产力、生物安全、疫苗接种和畜群特征之间的关系。为了做到这一点，我们使用2014年至2015年的数据进行了加法贝叶斯网络分析，涵盖了157个丹麦断奶仔猪母猪群。总体而言，生产力和生物安全水平较高，抗菌药物使用量较低。未发现规定的抗菌药物使用量与生产力之间存在关联。其他变量，如生物安全和丹麦无特定病原体（SPF）系统的注册情况，与母猪生产力的关联比抗菌药物使用量更强。在断奶仔猪单元中，发现抗菌药物使用量与某些疫苗接种做法之间存在关联，这表明疫苗可能被用于控制先前存在的问题。结果表明，大多数丹麦母猪养殖户在使用少量抗菌药物的情况下能够保持生产力。这一结论必须在丹麦养猪业的背景下进行解读，即总体生物安全水平较高，且多年来官方一直致力于减少抗菌药物的使用。
