Mavzuni o‘rganish uchun tayanch iboralar. Go‘shtdor zotlar, genotip, fenotip, o‘sish, rivojlanish, tana tuzilishi, sutdorlik, yirik zotlar, Qozoqi oqbosh, Aberdin-angus, Santa-gertruda hokazo.
Qo‘shimcha adabiyotlar:
Smith Thomas
Your Calf: A Kid's Guide to Raising and Showing Beef and Dairy Calves Paperback – January 12, 2016
The Cattle Health Handbook Paperback – March 11, 20018 by Heather
Storey's Guide to Raising Beef Cattle, 3rd Edition Paperback – October 29, 2019 by Heather
Chorvachilik va naslchilik ishi jurnali
Internet saytlari:
e by.com
amazon.comblob:https://www.youtube.com
https://www.youtube.com/watch?v=QDTFrD-9J-o
https://www.youtube.com/watch?v=oPGUDword9k
Do'stlaringiz bilan baham: |