Breeding Objectives and Selection Traits for Extensive Beef Cattle Production in the Tropics

SUMMARY Breeding objectives are largely determined by market tropics, the overall breeding objective can be considered in reproductive rate, carcass quality, adaptation and temperament. a simple efficient se:ection trait. Reas~ns why potential increas .. size are not as d1sadvantageous as 1n temperate areas are Reproductive performance has been less important in harsh environments because of the later age of turnoff and higher fertile cows. Current market trends towards younger slaughter the need to identify marker traits in bulls for cow fertility. have been defined for heat tolerance, parasite and disease not yet clear under what conditions direct selection for to be advantageous. It may be appropriate where genotype _ interactions need to be considered.