References
- Bryn , A. 2001 . Husdyrbeiting og biologisk mangfold i utmark . Sau og geit , 54 : 36 – 39 .
- Demment , M.W. and Van Soest , P.J. 1985 . A nutritional explanation for body-size patterns of ruminant and nonruminant herbivores . American Naturalist , 125 : 641 – 672 .
- Ditchkoff , S.S. 2000 . A decade since “diversification of ruminants”: has our knowledge improved? . Oecologia , 125 : 82 – 84 .
- Drabløs, D. 1997. Soga om smalen. Jubileumsskrift Norsk sau- og geitalslag 1947–1997. Norsk sau- og geitalslag. Otta, 592 pp.
- EAAP 2003. Animal Genetic Data Bank of the European Association for Animal Production: Sheep in Denmark. Internet document, URL: [http://www.tiho-hannover.de/einricht/zucht/eaap/descript/510.htm].
- Frederiksen , J.H. and Kjær , S.A. 1986 . Udnyttelse af naturarealer til fåregræsning . Berettelse fra Statens Husdyrbrugsforsøk , 609 : 59 – 71 .
- Garmo , T.H. and Nedkvitne , J.J. 1985 . Lauv som fôr til småfe . Sau og geit , 38 : 278 – 283 .
- Garmo, T.H., Hansen, H.H. & Skjevdal, T. 1993. Use of small ruminants to maintain environments in the nordic countries. 44th Annual Meeting of the European Association for Animal Production. Aarhus, Denmark, 16–19th August 1993, 16 p.
- Gordon , I.J. and Illius , A.W. 1994 . The functional significance of the browser-grazer dichotomy in African ruminants . Oecologia , 98 : 167 – 175 .
- Gordon , I.J. , Illius , A.W. and Milne , J.D. 1996 . Sources of variation in the foraging efficiency of grazing ruminants . Functional Ecology , 10 : 219 – 226 .
- Hansen , S. , Norderhaug , A. and Sickel , H. 2002 . Beitet i fjellbjørkeskogen . Buskap , 54 : 18 – 24 .
- Hofmann , R.R. 1989 . Evolutionary steps of ecophysiological adaptation and diversification of ruminants: a comparative view of their digestive system . Oecologia , 78 : 443 – 457 .
- Hofmann , R.R. and Steward , D.R.M. 1972 . Grazer or browser: a classification based on the stomach structure and feeding habits of East African ruminants . Mammalia , 36 : 226 – 240 .
- Littel, R.C., Milliken, G.A., Stroup, W.W., Russel, D. & Wolfinger, R.D. 1996. SAS System for Mixed Models. SAS Institute Inc., Cary, NC, 633 pp.
- Norwegian Meat Research Centre 2000. Sauekontrollens medlemmer blir stadig bedre. Internet document, URL: [http://www.fagkjott.no/fagweb/sys.nsf/framesets/startframe]
- Oklahoma State University 2003. Breeds of livestock: Sheep (Ovis aries). Internet document, URL: [http://www.ansi.okstate.edu/breeds/sheep/].
- Peters, R.H. 1986. The ecological implications of body size. Cambridge University Press, Cambridge, 345 pp.
- Robbins , C.T. , Spalinger , D.E. and Van Hoven , W. 1995 . Adaptation of ruminants to browse and grass diets: are anatomical-based browser-grazer interpretations valid? . Oecologia , 103 : 208 – 213 .
- Sharrow , S.H. , Leininger , W.C. and Rhodes , B. 1989 . Sheep grazing as a silvicultural tool to suppress brush . Journal of Range Management , 42 : 2 – 4 .
- Sokal, R.R. & Rohlf, F.J. 1995. Biometry: the principles and practice of statistics in biological research, 3d edition. W.H. Freeman and Company, New York, 887 pp.
- Trodahl, S. 1989. Sauen som husdyr. In: Maurtvedt, A. (ed.) Saueboka. Landbruksforlaget, Oslo, pp. 11–48.
- Trodahl, S. 1998. Sauen som husdyr. In: Dahl, S. & Lystad, M.L. (eds.) Saueboka, 2nd edn. Landbruksforlaget, Oslo, pp. 11–27.