NCERT Important Questions Class 9 Science biology Chapter 15
Important NCERT Extra Questions
Chapter 15 Improvement in Food Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
How are the following breeds developed? (a) Karan Swiss (b) Frieswal
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By the crosses between following breeds of cow:
(a) Brown Swiss and Sahiwal;
(b) Holstein-Friesian and Sahiwal.