A5079262593- Genetic and phenotypic traits in livestock
- Meat and Animal Product Quality
- Animal Behavior and Welfare Studies
- Genetic Mapping and Diversity in Plants and Animals
- Nutritional Studies and Diet
- Animal Nutrition and Physiology
- Spectroscopy and Chemometric Analyses
- Molecular Biology Techniques and Applications
- Wildlife Ecology and Conservation
- Advanced Statistical Methods and Models
- Research in Social Sciences
- Animal Ecology and Behavior Studies
- Pharmacological Effects and Assays
- Optimal Experimental Design Methods
- Effects of Environmental Stressors on Livestock
- 3D Shape Modeling and Analysis
- Listeria monocytogenes in Food Safety
- Water Quality and Pollution Assessment
- Carcinogens and Genotoxicity Assessment
- Insect and Pesticide Research
- Salmonella and Campylobacter epidemiology
- Food Safety and Hygiene
- Chromium effects and bioremediation
- Ecology and Vegetation Dynamics Studies
- Forensic and Genetic Research
Norwegian University of Life Sciences
2015-2024
Animalia (Norway)
2015-2024
Norwegian Veterinary Institute
2015-2024
NORCE Norwegian Research Centre
2017
Wildlife managers are often asking for reliable information of population density across larger spatial scales. In this study, we examined the spatiotemporal relationships between moose as estimated by cohort analysis and indices (1) harvest (HD; hunter kills per km 2 ), (2) seen unit effort (SPUE), (SMD; moose‐vehicle accidents (MVA density; e.g., traffic ) in 16 areas Norway with 13–42 years data. HD showed a close positive relationship both within regions. However, temporal variation was...
Modern breeding schemes for livestock species accumulate a large amount of genotype and phenotype data which can be used genome-wide association studies. Many chromosomal regions harboring effects on quantitative traits have been reported from these studies, but the underlying causative mutations remain mostly undetected. In this study, we combine available commercial pig scheme three different breeds (Duroc, Landrace, Large White) to pinpoint functional variation region porcine chromosome 7...
This article presents a comprehensive framework for executing primal cuts on pigs within Meat Factory Cell (MFC) context, with potential applications small and medium-sized producers. The begins by creating 3D model from CT-scans, which is then aligned point cloud acquired an Intel© Realsense™ camera using initial coarse estimate, refined through Bayesian Coherent Point Drift. Cutting trajectories are generated based custom of the cutting surface, designed consideration pig's skeletal...
Abstract Computed tomography (CT) scanning of pigs has been shown to produce detailed phenotypes useful in pig breeding. Due the large number individuals scanned and corresponding data sets, there is a need for automatic tools analysis these sets. In this paper, feasibility deep learning fully segmentation skeleton from CT volumes explored. To maximize performance, given training available, series problem simplifications are applied. The deep-learning approach can replace our currently used...
The International Agency for Research on Cancer has classified red meat as "probably carcinogenic to humans" (Group 2A). In mechanistic studies exploring the link between intake of and CRC, heme iron, pigment meat, is proposed play a central role catalyzer luminal lipid peroxidation cytotoxicity. present work, novel A/J Min/+ mouse was used investigate effects dietary beef, pork, chicken, or salmon (40% muscle food (dry weight) 60% powder diet) Apc-driven intestinal carcinogenesis, from week...
Genetic parameters of in vivo primal cuts breeding pigs using computed tomography were estimated. A total 2,439 Duroc and 1998 Landrace boars from the Topigs Norsvin boar testing station Norway CT scanned as part genetic program. In derived images atlas segmentation; method called Pig Atlas. The (co)variance estimates obtained univariate (heritabilities) multivariate (correlations) animal models DMU software. heritabilities for all proportions (%) intermediate to large both breeds, h2...
The present study aims at improving the prediction of lean meat percentage (LMP) for pig carcasses based on on-line measurements from slaughterhouses using 'Hennessy Grading Probe 7' (HGP7) and auxiliary information such as gender breed. performance is evaluated an empirical Bayes method capable utilizing a surrogate variable, that is, LMP computed tomography. HGP7 measures thicknesses fat layers. subcutaneous fat, sirloin height interior layer should be included predictor variables together...
Summary Hams from Landrace, Duroc and Hampshire pigs slaughtered at ages 6, 7.5 9 months were processed to generate Norwegian Parma‐style hams. Lipid contents the compositions of fatty acid classes (Σ SFA , Σ MUFA PUFA ) within neutral lipids, phospholipids free acids determined. Small differences in lipid degradation composition revealed. However, significant sensory related lipids observed. Breed was more important than age. Dry‐cured hams gave a intense mature odour that may be associated...
Food business operators are responsible for food safety and assessment of shelf lives their ready-to-eat products. For assisting them, a customized software based on predictive models, ListWare, is being developed. The aim this study was to develop validate model the growth Listeria monocytogenes in sliced roast beef. A challenge performed comprising 51 different combinations variables. curves followed Baranyi Roberts with no clear lag phase specific rates range <0.005–0.110 hr−1. linear...
Shoulder lesions and body condition of sows at weaning have both environmental genetic causes. The traits can be scored farm level, following recording, the included in breeding goal directional selection applied. However, to further increase progress these traits, it is advantageous develop indicator on candidates (test boars or gilts, not yet exhibiting phenotype themselves). It has previously been suggested that scapula morphology spine might a key factor for sow shoulder lesions. In this...
The aim of the study was to evaluate performance for beef carcass grading using a novel semi-automatic method compared human classifiers. novelty measuring length as predictor. is given conformation and fat cover defined by EUROP classification system. A training set used fit model with predictors based on weight, age, breed sex, in addition length. Prediction evaluated test including carcasses graded Norwegian classifiers, separate international precision high (Pearson correlation ≥ 0.94)...
Beef carcases in Europe are classified as a proxy for the quantity and ratio of tissues, commonly referred to yield. It is important that proxies accurately measure yield they contribute financial transactions between abattoirs producers. The main purpose study was therefore examine ability EUROP carcase classification explain variation Furthermore, effect breed, confounder, also examined. A multivariate definition separating into six product categories utilised response linear regression...
In pig production, the production animals are generally three- or four-way crossbreeds. Reliable information regarding breed of origin slaughtered pigs is useful, even a prerequisite, for number purposes, e.g., evaluating potential effects on carcass grading. Genetic data from can easily be extracted and used crossbreed classification. current study, four classification methods, namely, random forest (RF), ADMIXTURE, partial least squares regression (PLSR), together with quadratic...
Osteochondrosis is a major cause of leg weakness in pigs. Selection against osteochondrosis currently based on manual scoring computed tomographic (CT) scans for the presence manifesta lesions. It would be advantageous if could diagnosed automatically, through artificial intelligence methods using machine learning. The aim this study was to describe method labelling articular lesions CT four pig joints guide development future learning algorithms, and report new observations made during...
Methods for linear regression with multivariate response variables are well described in statistical literature. In this study we conduct a theoretical evaluation of the expected squared prediction error bivariate where one contains missing data. We make assumption known covariance structure terms. On basis, evaluate three well-known estimators: standard ordinary least squares, generalized and James–Stein inspired estimator. Theoretical risk functions worked out all estimators to under which...
With heritable PSE (hal+) being largely eradicated in many countries, pork quality defects and their linkage to known mutations have received less attention the last decade. We address this by mapping frequency of four (200Q, 199 V, hal+, PHKG1) heterogenous Norwegian German pig populations (n = 136/61). Genotyping for was done PCR-RFLP analyses Illumina chip genotyping. found a high prevalence pigs with at least one tested samples (60%, 77%). For samples, we confirm links 200Q PHKG1...