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Impact of housing environment and management on pre-/post-weaning piglet productivity.
J Anim Sci
June 2022
Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA.
The complex environment surrounding young pigs reared in intensive housing systems directly influences their productivity and livelihood. Much of the seminal literature utilized housing and husbandry practices that have since drastically evolved through advances in genetic potential, nutrition, health, and technology. This review focuses on the environmental interaction and responses of pigs during the first 8 wk of life, separated into pre-weaning (creep areas) and post-weaning (nursery or wean-finish) phases.
View Article and Find Full Text PDFFactors associated with antimicrobial use in pig and veal calf farms in the Netherlands: A multi-method longitudinal data analysis.
Prev Vet Med
February 2022
Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands; National Institute for Public Health and the Environment, Center for Infectious Disease Control, Bilthoven, the Netherlands.
Minimizing antimicrobial use (AMU) in livestock is needed to control antimicrobial resistance (AMR). In the Netherlands, the livestock sector reduced AMU by almost 70 % since 2009, but this reduction stagnated in recent years. With only therapeutic AMU allowed, it is clear that besides socio-economic and behavioral factors, also the farm technical characteristics influence the conditions under which farmers need AMU.
View Article and Find Full Text PDFIdentification of trailer heat zones and associated heat stress in weaner pigs transported by road in tropical climates.
J Therm Biol
April 2021
Laboratory of Biometeorology and Environmental Biophysics, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil.
Heat stress is major welfare concern during transport of pigs in tropical climates, which can also lead to direct production costs. This study evaluated the dynamics of heat zones through the load and their relationship with heat stress of weaner pigs during road transport in a tropical climate. Both environmental (e.
View Article and Find Full Text PDFAn African swine fever (ASF) outbreak in wild boars was first reported on October 2, 2019, in South Korea. Since then, additional cases were reported in South Korea's border areas. We here report the identification of ASF virus (ASFV) DNAs from two out of eight environmental abiotic matter samples collected from areas where ASF-positive wild boar carcasses were found.
View Article and Find Full Text PDFMachine Learning-Based Microclimate Model for Indoor Air Temperature and Relative Humidity Prediction in a Swine Building.
Animals (Basel)
January 2021
Department of Bio-Systems Engineering, Institute of Smart Farm, Gyeongsang National University, Jinju 52828, Korea.
Indoor air temperature (IAT) and indoor relative humidity (IRH) are the prominent microclimatic variables; still, potential contributors that influence the homeostasis of livestock animals reared in closed barns. Further, predicting IAT and IRH encourages farmers to think ahead actively and to prepare the optimum solutions. Therefore, the primary objective of the current literature is to build and investigate extensive performance analysis between popular ML models in practice used for IAT and IRH predictions.
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