A5045722974- Genetic and phenotypic traits in livestock
- Ruminant Nutrition and Digestive Physiology
- Wildlife Ecology and Conservation
- Animal Behavior and Welfare Studies
- Reproductive Physiology in Livestock
- Agriculture Sustainability and Environmental Impact
- Rangeland Management and Livestock Ecology
- Effects of Environmental Stressors on Livestock
- Genetic Mapping and Diversity in Plants and Animals
- Indigenous Studies and Ecology
- Animal Nutrition and Physiology
- Soil and Water Nutrient Dynamics
- Agricultural Economics and Policy
- Ecology and Vegetation Dynamics Studies
- Agriculture and Farm Safety
- Meat and Animal Product Quality
- Food Supply Chain Traceability
- Primate Behavior and Ecology
- Human-Animal Interaction Studies
- Toxic Organic Pollutants Impact
- Halal products and consumer behavior
- Climate change impacts on agriculture
- Environmental, Ecological, and Cultural Studies
- Land Use and Ecosystem Services
- Pesticide Exposure and Toxicity
Norwegian University of Life Sciences
2013-2024
The Research Council of Norway
2003
Satellite telemetry is an increasingly utilized technology in wildlife research, and current devices can track individual animal movements at unprecedented spatial temporal resolutions. However, as we enter the golden age of satellite telemetry, need in-depth understanding main technological, species-specific environmental factors that determine success failure tracking across species habitats. Here, assess relative influence such on ability units to provide expected amount quality data by...
Dry season diets and habitat use of increasing populations Asian elephants Elephas maximus greater one-horned rhinoceros Rhinoceros unicornis in the Babai Valley Royal Bardia National Park, Nepal, are described, an assessment is made potential for competition between them. The diets, analysed by microhistology, were different, with a similarity index 37.5%, different grass/browse proportions: rhino diet consisted 63% grass 28% browse; that was 24% 65% browse. A tallgrass floodplain grass,...
Abstract In ungulates, females typically need to reach a critical threshold body weight in order reproduce. Females born ‘poor’ years may lose 1 year of reproduction, as they the mass later. Some studies report also lasting effect low initial into prime age, while several other have shown that nearly all prime‐age ovulate or are pregnant. However, quality offspring (as measured by weight) is often not considered. We tested whether female ungulates with an initially (at around weaning) same...
A central theme in life history theory is to determine how reproduction varies with age iteroparous organisms. Evidence of ageing and senescence, defined as the progressive loss function accompanied by decreased performance age, remains poorly documented for large herbivores, particular it relates reproduction. Analyses body weight 87 532 domestic sheep lambs demonstrates that onset reproductive senescence ewes occurs already at 5 6 years when measured, respectively, lamb litter size...
Genotype x environment interaction (G E) effects on live weaning weights of lambs were studied by using the 2 breeds Norwegian White sheep (NWS; heavy, long-tailed) and Spel (Spel; lighter, short-tailed) as genetic groups (G). A total 37,338 NWS 30,075 born from 1989 to 1999 40 farms that kept both together included in analyses. Environment was characterized farm year (E). In a mixed linear model framework, significance random G E effect breed-specific environmental variances tested...
Abstract Animal responses to global climate variation might be spatially inconsistent. This may arise from spatial in factors limiting populations' growth or differences the links between patterns and ecologically relevant local variation. For example, North Atlantic Oscillation ( NAO ) has a consistent relation temperature, but inconsistent snow depth Scandinavia. Furthermore, there are multiple mechanistic ways by which limit animal populations, involving both direct effects through...
This study evaluated the effect of supplemental vitamin E to ewes in late pregnancy on rate stillborn lambs. Ewes 19 flocks 5 regions Norway were daily supplemented 6–7 weeks before average expected lambing date with either (1) 360 IU (supplemented), or (2) placebo (control). The supplement was given addition basal diet forage, concentrate and mixture minerals vitamins each flock, assuming that forage contained 40 mg α-tocopherol/kg DM. Information about diets collected via analyses samples...
In the present study, foraging behaviour of ewes from three common Norwegian sheep breeds; long-tailed Dala sheep, and two short-tailed breeds Spæl Fur was studied. Based on difference in body size digestive anatomy, we expected lighter to browse more woody plants than ewes. The experiments were conducted during consecutive summers within flocks' usual grazing areas, sampled proportion time that spent feeding plant species. We tested hypothesis by applying generalized linear mixed models...
Norway is the largest sheep meat producer among Nordic countries with more than 1.3 million lambs and slaughtered in 2017. The industry limited by need for in-house feeding during winter months. In summer, Norwegian are mainly kept on rangeland pastures, sufficient feed almost double current population. Lambs over a three- to four-month period from September December peak September–October, providing surplus of lamb, much which subsequently frozen, followed eight months fresh produce supply....
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This study compared the meat sensory profile of lambs (5 months old) and hoggets (17 from two sheep breeds, Norwegian White Sheep (NWS) Spel (NS). The loin (left right) samples (M longissimus thoracis et lumborum) 50 carcasses were analysed for 23 attributes by a trained panel using quantitative descriptive analysis evaluated on an unstructured line scale 1 (lowest intensity) to 9 (highest intensity). There was effect (P < 0.05) animal age attributes: odour (fried roasted, intensity),...
With high variation in environmental conditions, especially during the extensive grazing season, genotype by environment interaction is potentially important to lamb production Norway. Using breed as an indicator of genotype, between and environment, i.e. level farm year calculated solutions a random farm*year variable, on 52 farms keeping both long-tailed Dala short-tailed Spæl 1989–98 was studied. The dataset included 48,946 lambs 38,299 lambs. affected autumn weights, though were always...