How has the herd size of cattle been successfully increased?
A. Breeding normal cows
B. Breeding diseased cows
C. Breeding high milk-yielding bulls
D. Breeding high-quality meat-yielding bulls
Answer:D
How has the herd size of cattle been successfully increased?
A. Breeding normal cows B. Breeding diseased cows C. Breeding high milk-yielding bulls D. Breeding high-quality meat-yielding bulls