Blar i Brage NMBU på forfatter "Vasdal, Guro"
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A Descriptive Study of Keel Bone Fractures in Hens and Roosters from Four Non-Commercial Laying Breeds Housed in Furnished Cages
Kittelsen, Käthe Elise; Moe, Randi Oppermann; Hansen, Tone Beate; Toftaker, Ingrid; Christensen, Jens Peter; Vasdal, Guro (Peer reviewed; Journal article, 2020)The keel bone in birds is an extension of the sternum. Fractures to the keel are common in modern laying hen breeds. Several of the proposed causal mechanisms behind keel bone fractures (KBF) are linked to selection for ... -
Association between animal-based measures at 11 weeks and slaughter data at 20 weeks in turkey toms (Meleagris gallopavo)
Vasdal, Guro; Marchewka, Joanna; Moe, Randi Oppermann (Peer reviewed; Journal article, 2021) -
Associations between carcass weight uniformity and production measures on farm and at slaughter in commercial broiler flocks
Vasdal, Guro; Granquist, Erik Georg; Skjerve, Eystein; De Jong, Ingrid C.; Berg, Charlotte; Michel, Virginie; Moe, Randi Oppermann (Journal article; Peer reviewed, 2019)In poultry flocks, flock weight uniformity is often defined as the percent individuals within 10% of the mean body weight (BW) and the variability of this uniformity can be expressed as the CV of BW. Flock weight uniformity ... -
Associations between on-farm welfare measures and slaughterhouse data in commercial flocks of turkey hens (Meleagris gallopavo)
Marchewka, Joanna; Vasdal, Guro; Moe, Randi Oppermann (Peer reviewed; Journal article, 2020)There is a growing demand for documentation of animal welfare in meat production industry. Research on turkey welfare has mainly focused on toms at the end of production cycle, and information on the relationship between ... -
Associations between qualitative behaviour assessments and measures of leg health, fear and mortality in Norwegian broiler chicken flocks
Muri, Karianne; Stubsjøen, Solveig Marie; Vasdal, Guro; Moe, Randi Oppermann; Granquist, Erik Georg (Journal article; Peer reviewed, 2018)Qualitative behavioural assessments (QBA) is an animal-based welfare measure that has been included in several on-farm welfare assessment protocols, including the Welfare Quality® (WQ) protocol for poultry. However, there ... -
Choosy chicks : chicken life quality is a matter of choices
Holt, Regine Victoria (PhD Thesis;2023:82, Doctoral thesis, 2023) -
Developing a novel welfare assessment tool for loose-housed laying hens – the Aviary Transect method
Vasdal, Guro; Marchewka, Joanna; Newberry, Ruth C.; Estevez, Inma; Kittelsen, K (Peer reviewed; Journal article, 2022) -
Effects of subclinical footpad dermatitis and emotional arousal on surface foot temperature recorded with infrared thermography in turkey toms (Meleagris gallopavo)
Moe, Randi Oppermann; Bohlin, Jon; Flø, Andreas Svarstad; Vasdal, Guro; Erlandsen, Henrik; Guneriussen, Eivind; Sjökvist, Elin Charlotte; Stubsjøen, Solveig Marie (Journal article; Peer reviewed, 2018) -
Experimental factors affecting the within- and between-individual variation of plantar foot surface temperatures in turkeys (Meleagris gallopovo) recorded with infrared thermography
Moe, Randi Oppermann; Flø, Andreas Svarstad; Bohlin, Jon; Vasdal, Guro; Erlandsen, Henrik; Guneriussen, Eivind; Sjökvist, Elin Charlotte; Stubsjøen, Solveig Marie (Journal article; Peer reviewed, 2018) -
Hot chicks, cold feet
Moe, Randi Oppermann; Bohlin, Jon; Flø, Andreas Svarstad; Vasdal, Guro; Stubsjøen, Solveig Marie (Journal article; Peer reviewed, 2017) -
Lameness and its relationship with health and production measures in broiler chickens
Granquist, Erik Georg; Vasdal, Guro; De Jong, Ingrid C.; Moe, Randi Oppermann (Peer reviewed; Journal article, 2019) -
Miljøberikelser for kalkun
Stårvik, Trude; Knutsen, Karianne Skyberg; Rønning, Lea Knapperholen (Student paper, others, 2020)I denne fordypningsoppgaven har vi studert kalkuners atferd når de blir eksponert for ulike miljøberikelser. Formålet med oppgaven er å fremskaffe mer kunnskap om miljøberikelser hos kalkun, ved å beskrive kalkunenes atferd ... -
On-farm broiler chicken welfare assessment using transect sampling reflects environmental inputs and production outcomes
BenSassi, Neila; Vas, Judit; Vasdal, Guro; Averos, Xavier; Estevez, Inma; Newberry, Ruth C. (Journal article; Peer reviewed, 2019)To evaluate the utility of transect sampling for assessing animal welfare in large chicken flocks, we quantified relationships between environmental inputs, welfare problems detected using transect sampling, and production ... -
Prevalence of Keel Bone Damage in Red Jungle Fowls (Gallus gallus)—A Pilot Study
Kittelsen, Käthe Elise; Jensen, Per; Christensen, Jens Peter; Toftaker, Ingrid; Moe, Randi Oppermann; Vasdal, Guro (Peer reviewed; Journal article, 2020)The keel bone of laying hens is prone to deviations and fractures. Recent studies in the last decade report high prevalence of this welfare concern. The causative factors are not clear; however, selection for efficient egg ... -
Rewarding memories? Behaviour of broiler chickens towards peat in flocks with and without previous exposure to peat
Vas, Judit; BenSassi, Neila; Vasdal, Guro; Newberry, Ruth C. (Peer reviewed; Journal article, 2020) -
The environmental requirements of piglets and use of the creep area
Vasdal, Guro (PhD Thesis;2010:47, Doctoral thesis, 2010)Around 15% of all liveborn piglets die during the lactation period, and this poses a major economical and welfare challenge for the pig production. It has been hypothesized that an increased use of the creep area early ...