Lihatõud
16
12. http://animals.nationalgeographic.com/animals/mammals/american-bison/
13. Dexter, http://en.wikipedia.org/wiki/Dexter_cattle
14. http://www.eolss.net/Sample-Chapters/C10/E5-24-03-02.pdf
15. Why Dexters? http://www.dextercattle.co.uk/breed-info/why-dexters/
16. Bellmanna, Wegner jpt, 2003, Beef versus dairy cattle: a comparison of
metabolically relevant hormones, enzymes, and metabolites, Saksamaa
17. Heck cattle, http://en.wikipedia.org/wiki/heckcattle
18. Bowling A.T & Ruvinsky A., 2004, The Genetics of The Cow
19. Enderby Island cattle, http://en.wikipedia.org/wiki/Enderby_Island_cattle
20. Enderby Island, http://www.rarebreeds.co.nz/endcattlepro.html
17
annaabi.ee 
