Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2020
Sammendrag
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Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Go bohccot, fuođđoeallit ja oamit galget rasttildit geainnuid ja ruovdemáđijaid, de dat ii álo mana nu bures. Eurohpás leat maŋemus 40 jagis lassánan elliidvuojáhallamat. Dasa lassin leat dat váttisvuohtan čálgoservodaga elliide ja olbmuide, mii mielddisbuktá maid stuora servodatekonomalaš goluid. Dál eai gávdno makkárge teknologalaš čovdosat mat sáhttet hehttet dakkár oktiibeaškkehemiid, earenoamážiid guovlluin gos leat garra, árktalaš dálvedálkkádagat. Dutkit leat dál hutkan ja geahččaladdan smávva enegiijaseastevaš rádiosáddenrusttegiid, mat leat čeabetbáttiid sisa heivehuvvon, ja mas lea dakkár vuogádat, mii galgá dieđihit biilavuddjiide go bohccot leat geaidnoguoras. Dieđihanvuogádat lea čájehan buriid bohtosiid dan golmma maŋemus dálvvi go leat geahččaladdan daid. Ulbmil dutkamiin lei geahččalit dieđihanvuogádaga doaibmasihkarvuođa ja oaidnit eastadeami ávkkálašvuođas árktalaš dálvedálkkádagain.
Sammendrag
Forsvaret har behov for standplass for testskyting av langdistanseartilleri over 40 km. Denne typen artilleri forårsaker en del støy. Uforutsett og plutselig støy kan forårsake sterke adferdsreaksjoner hos husdyr og over tid kan produksjonen også bli negativt påvirket. Formålet med denne studien var å undersøke eventuelle effekter av skytestøy på produksjonsdyr i området rundt artilleristandplass 40 km i Ulvådalen, Elverum kommune under testskyting 24.-25.....
Forfattere
Keni Ren Johannes Karlsson Markus Liuska Markku Hartikainen Inger Hansen Grete H. M. JørgensenSammendrag
The growing interest in precision livestock farming is prompted by a desire to understand the basic behavioural needs of the animals and optimize the contribution of each animal. The aim of this study was to develop a system that automatically generated individual animal behaviour and localization data in sheep. A sensor-fusion-system tracking individual sheep position and detecting sheep standing/lying behaviour was proposed. The mean error and standard deviation of sheep position performed by the ultra-wideband location system was 0.357 ± 0.254 m, and the sensitivity of the sheep standing and lying detection performed by infrared radiation cameras and three-dimenional computer vision technology were 98.16% and 100%, respectively. The proposed system was able to generate individual animal activity reports and the real-time detection was achieved. The system can increase the convenience for animal behaviour studies and monitoring of animal welfare in the production environment.
Sammendrag
In the Nordic countries, permanent outdoor housing of horses in winter is gaining popularity. This practice will expose the horses to harsh weather conditions. However, horses that are kept indoors at night and turned out in the cold during daytime also experience thermoregulatory challenges. With emphasis on the special challenges in a Nordic climate, this paper aims to increase the understanding of thermoregulation in horses, and ultimately to improve management practices. First, factors related to the environment and the mechanisms of heat exchange are summarised, thereafter the factors related to the horse, such as anatomy and physiological mechanisms which are important for balancing heat gain and heat loss. Human utility of horses and management practices such as clipping, the use of rugs, and provision of shelter are discussed in the light of thermoregulation in horses. The management and care for horses should take into account the principles of thermoregulation and mechanisms of heat loss and gain, and horses should be given a freedom of choice to cope with changing weather conditions. This should include space for movement, protection from sunshine, precipitation and wind, dry bedding, and appropriate feeding. Several studies indicate that the combination of cold rain and wind is a very demanding weather type, not just very low ambient temperatures. A shelter offers the horse protection from wind, precipitation and radiation which it can use when needed, and is therefore a more flexible management solution than a rug, especially when weather conditions change rapidly. In inclement weather, a rug may be a useful supplement. Too many horse owners clip their horse, which often necessitates the use of rugs on a regular basis. More knowledge is needed on how to best manage sport horses, especially when being sweaty after exercise in winter, to ensure good welfare.
Sammendrag
Horse owners may lack knowledge about natural thermoregulation mechanisms in horses. Horses are managed intensively; usually stabled at night and turned out during the day. Some are clipped and many wear a blanket, practices which reduce the horse's ability to regulate heat dissipation. The aim of this study was to investigate the relationship between hair coat characteristics, body condition and infrared surface temperatures from different body parts of horses. Under standard conditions, the body surface temperature of 21 adult horses were investigated using infrared thermography. From several readings on the same body part, a mean temperature was calculated for each body part per horse. Detailed information on horse breed, age, management and body condition was collected. Hair coat samples were also taken for analyses. A mixed statistical model was applied. Warmblood horse types (WB) had lower hair coat sample weights and shorter hair length than coldblood horse types (CB). The highest radiant surface temperatures were found at the chest 22.5 ± 0.9 °C and shoulders 20.4 ± 1.1 °C and WB horses had significantly higher surface temperatures than CB horses on the rump (P < 0.05). Horses with a higher hair coat sample weight had a lower surface temperature (P < 0.001) and hind hooves with iron shoes had a significant lower surface temperature than unshod hind hooves (P = 0.03). In conclusion, individual assessment of radiant surface temperature using infrared thermography might be a promising tool to gather data on heat loss from the horses' body. Such data may be important for management advice, as the results showed individual differences in hair coat characteristics and body condition in horses of similar breeds.