Fræðaþing landbúnaðarins - 13.02.2009, Qupperneq 136
134 | FRÆÐAÞING LANDBÚNAÐARINS 6, 2009
Þakkir
Ollum bændum sem tóku þátt í verkefninu er þakkað fyrir gott samstarf og góðar
móttökur rannsóknarmanns í vor og haust. Framleiðnisjóði landbúnaðarins er þakkað
fyrir styrkveitingu til þessa verkefnis.
Heimildir
Amory, J.R., Kloostermann, P., Barker, Z.E., Wright, J.L., Blowey, R.W. and Green, L.E., 2006. Risk
factors for reduced locomotion in dairy cattle on nineteen farms in the Netherlands. Journal of Dairy
Science 89: 1509-1515.
Axel Kárason, 2008. Vellíðan mjólkurkúa: Aðbúnaður - Atferli - Hreinleiki - Hæklar. BS verkefni.
Landbúnaðarháskóli Islands. 65 bls.
Chesterton, R.N., Pfeiffer, D.U., Morris, R.S. & Tanner, C.M., 1989. Environmental and behavioral
factors affecting the prevalence of foot lameness in New Zealand dairy herds - a case-control study.
New Zealand Veterinary Journal 37: 135-142.
Enevoldsen, C., Gröhn, Y.T. & Thysen, I., 1994. Skin injuries on the body and tight of dairy cows:
association with season, claw health, disease treatment, and other cow characteristics. Acta Veterinaria
Scandinavica 35: 337-347.
Espejo, L.A. & Endres, M.I., 2007. Herd-level risk factors for lameness in high-producing Holstein
cows housed in freestall bams. Journal ofDairy Science 90: 306-314.
Faull, W.B., Hughes, J.W., Clarkson, Dawnham, D.Y., Manson, F.J., Merritt, J.B., Murray, R.D.,
Russell, W.B., Sutherst, J.E. & Ward, W.R., 1996. Epidemiology of lameness in dairy cattle: the
influence of cubicles and indoor and outdoor walking surfaces. The Veterinary Record 139: 130-136.
Fregonesi, J.A.; Tucker; C.B & Weary; D.M., 2007. Overstocking reduces lying time in dairy cows.
Journal ofDairy Science 90: 3349-3354.
Green, L.E., Hedges, J.V., Schukken, Y.H., Blowey, R.W. & Packington, A.J., 2002. The impact of
clinical lameness on the milk yield of dairy cows. Journal ofDairy Science 85: 2250-2256.
Hamilton, C., Hansson, I., Ekman, T., Emanuelson, U. & Forlsund, 2002. Health of cows, calves and
young stock on 26 organic dairy herds in Sweden. The Veterinary Record 150: 503-508.
Haskell, M.J., Rennie, L.J., Bowell, V.A., Bell, M.J. & Lawrence, A.B., 2006. Housing system, milk
production, and zero-grazing effects on lameness and leg injury in dairy cows. Journal of Dairy
Science 89: 4259-4266.
Jóhanna Skúladóttir Ólafs & Grétar Hrafn Harðarson, 2007. Áhrif, aðbúnaðar, mjaltatækni og
júgurheilbrigðis á fjölda og tegundir gerla í innleggsmjólk. Fræðaþing landbúnaðarins 4:377-383.
Keil, N.M., Wiederkehr, T.U., Friedli, K. & Wechsler, B, 2006. Effects of frequenzy and duration of
outdoor exercise on the prevalence of hock lesions in tied Swiss dairy cows. Preventive Veterinary
MedicinelA: 142-153.
Klaas, I.C., Rousing, T., Fossing, C., Hindhede, J. & Sorensen, J.T., 2003. Is lameness a welfare
problem in dairy farms with automatic milking systems? Animal welfare 12: 599-603.
Reneau, J.K., Seykora, A.J., Heins, B.J., Bey, R.F. & Farnsworth, R.J., 2003. Relationship of cow
hygiene scores and SCC. I: National Mastitis Council Annual Meeting Proceedings.
Schreiner, D.A. & Ruegg, P.L., 2003. Relationship between udder and leg hygiene scores and
subclinical mastitis. Journal of Daiiy Science 86: 3460-3465.
Weary, D.M. and Taszkun, I., 2000. Hock lesions and free-stall design. Journal of Dairy Science 83:
697-702.
Wierenga, H.K., 1983. The influence of the space for walking and lying in a cubicle system on the
behaviour of dairy cattle. I: Farm Animal Housing and Welfare (ritstj. Baxter, S.H., McLomack &
Baxter, M.R.). Martinus Nijhoff, the Hague, the Netherlands, bls. 171-180.