Michael K. Dyck
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View article: Daily Feed Intake Patterns of Purebred Nucleus Boars as Genetic Indicators for Disease Resilience of Crossbred Barrows Under a Natural Polymicrobial Disease Challenge
Daily Feed Intake Patterns of Purebred Nucleus Boars as Genetic Indicators for Disease Resilience of Crossbred Barrows Under a Natural Polymicrobial Disease Challenge Open
Resilience is an important selection target in pig production to reduce the impact of stressors on performance and welfare, in particular disease stressors. Disease resilience is, however, difficult to select for because purebred selection…
View article: 201 Genetic parameters of disease in growing pigs under a polymicrobial natural disease challenge.
201 Genetic parameters of disease in growing pigs under a polymicrobial natural disease challenge. Open
This study aimed to estimate genetic parameters of disease-related traits of growing pigs exposed to a natural polymicrobial disease challenge. The challenge was established by introducing seeder pigs into a wean to finish research facilit…
View article: PSV-10 Genetic parameters of disease in growing pigs under a polymicrobial natural disease challenge.
PSV-10 Genetic parameters of disease in growing pigs under a polymicrobial natural disease challenge. Open
This study aimed to estimate genetic parameters of disease-related traits of growing pigs exposed to a natural polymicrobial disease challenge. The challenge was established by introducing seeder pigs into a wean to finish research facilit…
View article: Early Identification of Individual Nursery Pigs at Risk of Requiring Health Treatment Using Machine Learning
Early Identification of Individual Nursery Pigs at Risk of Requiring Health Treatment Using Machine Learning Open
Infectious disease is a major concern in the swine industry, impacting production as well as animal welfare. In this research, a prediction model for early identification of late nursery pigs within a batch that are at higher risk of requi…
View article: Evaluation of an Ipsilateral Uterine Horn Resection and Ovariectomy Surgical Model in Gilts for Embryo Collection
Evaluation of an Ipsilateral Uterine Horn Resection and Ovariectomy Surgical Model in Gilts for Embryo Collection Open
Minimizing the risk of disease transmission, disseminating superior genetics, and reducing transportation costs are recognized advantages of embryo biotechnologies. These advantages make the development of a minimally invasive and repeatab…
View article: Identifying visible tissue in intraoperative ultrasound: a method and application
Identifying visible tissue in intraoperative ultrasound: a method and application Open
Purpose: Intraoperative ultrasound scanning is a demanding visuotactile task. It requires operators to simultaneously localise the ultrasound perspective and manually perform slight adjustments to the pose of the probe, making sure not to …
View article: Genetic analysis of stress hormone levels in hair of healthy nursery pigs and their relationships with backtest responses
Genetic analysis of stress hormone levels in hair of healthy nursery pigs and their relationships with backtest responses Open
This study explored the genetics of the levels of stress hormones (cortisol, cortisone, DHEA, and DHEA-S) in hair of 863 clinically healthy Yorkshire × Landrace male pigs at ∼40 days of age and evaluated their potential as biomarkers of in…
View article: Swine Industry in Canada: Biosecurity in Live Animal, Semen Transportation, and Embryo Transfer
Swine Industry in Canada: Biosecurity in Live Animal, Semen Transportation, and Embryo Transfer Open
The pork industry, a key player in the Canadian economy, significantly contributes to livestock production, international trade markets, and employment. The multi-faceted swine industry is comprised of nucleus, multiplier, and commercial h…
View article: Placental Transcriptome Analysis in Connection with Low Litter Birth Weight Phenotype (LBWP) Sows
Placental Transcriptome Analysis in Connection with Low Litter Birth Weight Phenotype (LBWP) Sows Open
It is possible to identify sub-populations of sows in every pig herd that consistently give birth to low birth weight (BW) piglets, irrespective of the litter size. A previous study from our group demonstrated that placental development is…
View article: Challenges With Segmenting Intraoperative Ultrasound For Brain Tumours
Challenges With Segmenting Intraoperative Ultrasound For Brain Tumours Open
Objective Addressing the challenges that come with identifying and delineating brain tumours in intraoperative ultrasound. Our goal is to both qualitatively and quantitatively assess the interobserver variation, amongst experienced neuro-o…
View article: Genetic analysis of the blood transcriptome of young healthy pigs to improve disease resilience
Genetic analysis of the blood transcriptome of young healthy pigs to improve disease resilience Open
Background Disease resilience is the ability of an animal to maintain productive performance under disease conditions and is an important selection target. In pig breeding programs, disease resilience must be evaluated on selection candida…
View article: 132 Genetics of Stress Hormone Concentrations in Hair of Healthy Nursery Pigs and Their Relationship with Back Test Responses
132 Genetics of Stress Hormone Concentrations in Hair of Healthy Nursery Pigs and Their Relationship with Back Test Responses Open
Cortisol and dehydroepiandrosterone (DHEA) are circulating adrenal hormones whose concentration in the blood varies in the face of infectious and non-infectious stressors. Their incorporation into hair makes their concentration in hair a r…
View article: 124 Disease Resilience Indicators Based on Phagocytosis Assays on Blood from Young Healthy Pigs
124 Disease Resilience Indicators Based on Phagocytosis Assays on Blood from Young Healthy Pigs Open
Infectious diseases impact the swine industry through increased morbidity and mortality, leading to large economic losses and reduced animal welfare. Disease resilience is the ability of an animal to maintain production performance under p…
View article: Identifying visible tissue in intraoperative ultrasound: a method and application
Identifying visible tissue in intraoperative ultrasound: a method and application Open
Purpose: Intraoperative ultrasound scanning is a demanding visuotactile task. It requires operators to simultaneously localise the ultrasound perspective and manually perform slight adjustments to the pose of the probe, making sure not to …
View article: Automated robotic intraoperative ultrasound for brain surgery
Automated robotic intraoperative ultrasound for brain surgery Open
During brain tumour resection, localising cancerous tissue and delineating healthy and pathological borders is challenging, even for experienced neurosurgeons and neuroradiologists. Intraoperative imaging is commonly employed for determini…
View article: GWAS and genetic and phenotypic correlations of plasma metabolites with complete blood count traits in healthy young pigs reveal implications for pig immune response
GWAS and genetic and phenotypic correlations of plasma metabolites with complete blood count traits in healthy young pigs reveal implications for pig immune response Open
Introduction: In this study estimated genetic and phenotypic correlations between fifteen complete blood count (CBC) traits and thirty-three heritable plasma metabolites in young healthy nursery pigs. In addition, it provided an opportunit…
View article: Collaborative Robotic Ultrasound Tissue Scanning for Surgical Resection Guidance in Neurosurgery
Collaborative Robotic Ultrasound Tissue Scanning for Surgical Resection Guidance in Neurosurgery Open
The aim of this paper is to introduce a robotic platform for autonomous iUS tissue scanning to optimise intraoperative diagnosis and improve surgical resection during robot-assisted operations. To guide anatomy specific robotic scanning an…
View article: Preferential deposition of dairy derived fatty acids in muscle tissue is partially due to the upregulation of CD36 in a low-birth-weight swine model
Preferential deposition of dairy derived fatty acids in muscle tissue is partially due to the upregulation of CD36 in a low-birth-weight swine model Open
Metabolic syndrome is a worldwide health issue. Previous research has revealed that low-birth weight (LBW) swine fed a high-fat (HF) diet were susceptible to insulin resistance (IR) and developed a preferential intestinal lipid absorption,…
View article: Plasma protein levels of young healthy pigs as indicators of disease resilience
Plasma protein levels of young healthy pigs as indicators of disease resilience Open
Selection for disease resilience, which refers to the ability of an animal to maintain performance when exposed to disease, can reduce the impact of infectious diseases. However, direct selection for disease resilience is challenging becau…
View article: PSXIII-B-14 Investigation of the Blood Transcriptome of Young Healthy Pigs to Identify Genetic Indicators for Disease Resilience
PSXIII-B-14 Investigation of the Blood Transcriptome of Young Healthy Pigs to Identify Genetic Indicators for Disease Resilience Open
The objective of this study was to investigate the genetic control of the blood transcriptome of young healthy pigs (~27 days of age) to identify genetic indicators for disease resilience. We estimated the heritability of the expression of…
View article: Genetic analysis of disease resilience of wean-to-finish pigs under a natural disease challenge model using reaction norms
Genetic analysis of disease resilience of wean-to-finish pigs under a natural disease challenge model using reaction norms Open
Background Disease resilience is the ability to maintain performance across environments with different disease challenge loads (CL). A reaction norm describes the phenotypes that a genotype can produce across a range of environments and c…
View article: Genome-wide association study of disease resilience traits from a natural polymicrobial disease challenge model in pigs identifies the importance of the major histocompatibility complex region
Genome-wide association study of disease resilience traits from a natural polymicrobial disease challenge model in pigs identifies the importance of the major histocompatibility complex region Open
Infectious diseases cause tremendous financial losses in the pork industry, emphasizing the importance of disease resilience, which is the ability of an animal to maintain performance under disease. Previously, a natural polymicrobial dise…
View article: Thyroid hormone suppression in feeder pigs following polymicrobial or porcine reproductive and respiratory syndrome virus-2 challenge
Thyroid hormone suppression in feeder pigs following polymicrobial or porcine reproductive and respiratory syndrome virus-2 challenge Open
Thyroid hormones are powerful regulators of growth, development, and basal metabolic rate and can be dysregulated under conditions of severe stress or illness. To understand the role of these hormones in porcine disease response, serum sam…
View article: Heritability and genetic correlations of plasma metabolites of pigs with production, resilience and carcass traits under natural polymicrobial disease challenge
Heritability and genetic correlations of plasma metabolites of pigs with production, resilience and carcass traits under natural polymicrobial disease challenge Open
Metabolites in plasma of healthy nursery pigs were quantified using nuclear magnetic resonance. Heritabilities of metabolite concentration were estimated along with their phenotypic and genetic correlations with performance, resilience, an…
View article: 14 Genome-wide Association Studies of Disease Resilience Traits from a Natural Polymicrobial Disease Challenge in Pigs
14 Genome-wide Association Studies of Disease Resilience Traits from a Natural Polymicrobial Disease Challenge in Pigs Open
Infectious diseases cause tremendous financial loss in the pork industry, emphasizing the importance of disease resilience, which is the ability of an animal to maintain performance under disease. The objective of this study was to identif…
View article: 56 Awardee Talk: Genetic Improvement of Disease Resilience
56 Awardee Talk: Genetic Improvement of Disease Resilience Open
Infectious disease represents one of the largest cost components to the swine industry, incurring veterinary costs, loss of pigs due to mortality, reduced performance, and reduced animal welfare. Strategies to reduce the incidence and impa…
View article: PSVII-27 Genetic analysis of disease resilience of nursery-to-finish pigs under a natural disease challenge model using reaction norms
PSVII-27 Genetic analysis of disease resilience of nursery-to-finish pigs under a natural disease challenge model using reaction norms Open
Disease resilience is the ability of an animal to maintain performance across environments with different disease challenge loads (CL) and can be quantified using random regression reaction norm models that describe phenotype as a function…
View article: Genetic parameters of drinking and feeding traits of wean-to-finish pigs under a polymicrobial natural disease challenge
Genetic parameters of drinking and feeding traits of wean-to-finish pigs under a polymicrobial natural disease challenge Open
Background The pork industry faces unprecedented challenges from disease, which increases cost of production and use of antibiotics, and reduces production efficiency, carcass quality, and animal wellbeing. One solution is to improve the o…