Comparison of Finnish meat inspection records and average daily gain for cattle herds differing in Mycoplasma bovis test-status

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http://hdl.handle.net/10138/304281

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Haapala , V , Herva , T , Härtel , H , Pitkänen , E , Mattila , J , Rautjoki , P , Pelkonen , S , Soveri , T & Simojoki , H 2019 , ' Comparison of Finnish meat inspection records and average daily gain for cattle herds differing in Mycoplasma bovis test-status ' , Veterinary Journal , vol. 249 , pp. 41-46 . https://doi.org/10.1016/j.tvjl.2019.04.015

Title: Comparison of Finnish meat inspection records and average daily gain for cattle herds differing in Mycoplasma bovis test-status
Author: Haapala, V.; Herva, T.; Härtel, H.; Pitkänen, E.; Mattila, J.; Rautjoki, P.; Pelkonen, S.; Soveri, T.; Simojoki, H.
Contributor: University of Helsinki, Production Animal Medicine
University of Helsinki, Production Animal Medicine
University of Helsinki, Production Animal Medicine
Date: 2019-07
Language: eng
Number of pages: 6
Belongs to series: Veterinary Journal
ISSN: 1090-0233
URI: http://hdl.handle.net/10138/304281
Abstract: Detecting Mycoplasma bovis on cattle farms represents a challenge in the absence of an outbreak or cases of M. bovis mastitis, yet identification of an infection is essential to control the spread of the disease successfully. The objectives of this study were: (1) to determine whether meat inspection records can aid identification of cattle farms supporting M. bovis infection, and (2) to compare the average daily weight gain estimated from carcass weight for cattle originating from farms differing in M. bovis test-status. Meat inspection records were collected from two abattoirs in 2015; 80 677 animals in total. All the dairy and mixed breed cows and bulls used for meat production were categorized according to known M. bovis infection status of the farms from which the cattle were derived; positive, contact or control farms. The associations between animals from different M. bovis categories and lung lesions of bulls and cows (pneumonia and pleuritis), identified during meat inspection, and estimated average daily gain (ADG) of bulls, were investigated. The odds ratios for lung lesions, especially pleuritis, were higher in M. bovis test-positive or contact farms compared with control farms. Additionally, odds ratios for pleuritis were higher among animals from M. bovis test-positive farms and animals from contact slaughtering farms originating from M. bovis-free rearing farms. Bulls originating from M. bovis test-positive farms had higher estimated average daily gain than cattle from control farms. Meat inspection records can be used alongside other methods to detect M. bovis-positive farms where M. bovis causes lung lesions. (C) 2019 The Authors. Published by Elsevier Ltd.
Subject: Average daily gain
Cattle
Lung lesion
Meat inspection record
Mycoplasma bovis
LUNG LESIONS
INFECTIONS
SLAUGHTER
CALVES
413 Veterinary science
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