Publications by authors named "Anne Marie Michelsen"
This study aimed to enhance our understanding of the agreement between two sampling methods for the detection of bovine respiratory disease (BRD) pathogens in calves using high-throughput real-time qPCR (ht-RT-qPCR). In total, 233 paired nasal swab (NS) and non-endoscopic bronchoalveolar lavage (nBAL) samples were collected from 152 calves from 12 Danish cattle herds. In 202 of the observations, the calves were examined using a standardized clinical protocol.
View Article and Find Full Text PDFAnimal welfare is of increasing public interest, and the pig industry in particular is subject to much attention. The aim of this study was to identify and compare areas of animal welfare concern for commercial pigs in four different production stages: (1) gestating sows and gilts; (2) lactating sows; (3) piglets; and (4) weaner-to-finisher pigs. One welfare assessment protocol was developed for each stage, comprising of between 20 and 29 animal welfare measures including resource-, management- and animal-based ones.
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- - Rearing replacement heifers in the dairy industry is crucial but costly due to high disease susceptibility in preweaned calves, necessitating systematic health monitoring to ensure animal welfare and reduce management costs.
- - A study developed a health-monitoring tool for dairy calves, involving clinical observations and diagnostic tests at three different ages; it included data from 77 calves across nine Danish herds, assessing their immunization and health status.
- - Results highlighted significant health concerns, such as 31% of calves experiencing passive transfer failure, and varying clinical signs of gastrointestinal and respiratory diseases over time, indicating the need for tailored herd-specific health monitoring strategies.
Article Synopsis
- * This study aimed to enhance the interpretation of rtPCR results by linking them to clinical observations, developing a statistical method to identify optimal cut-off values for BRD-related pathogens using nasal swabs from calves.
- * Data from 36 herds in Denmark involving 340 calves were analyzed, leading to the suggestion of specific rtPCR cut-offs for predicting BRD; this method offers a framework for selecting clinically relevant thresholds, though it requires adequate data for reliable results.
Skin lesions on pigs inflicted by humans compromise animal welfare and are the subject of increased public and political attention in Denmark. Systematic surveillance of such skin lesions was enforced in April 2010 at all Danish pig abattoirs, through the recording of meat inspection Code 904 for the presence of skin lesions suspected to be human inflicted. The objectives of the present study were to (a) estimate the apparent prevalence of Code 904s at the pig and herd owner level; (b) characterise the distribution of deliveries with pigs demonstrating a Code 904; (c) characterise the distribution of herd owners with repeated Code 904 recordings; and (d) determine the developments in Code 904 prevalence over time in Danish finishing pigs in the period from May 1, 2010 to September 30, 2013.
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