<p>Animals with sleeker coats are commonly considered to have better heat tolerance, tick
resistance, and a lower incidence of dags in feedlot environments. The objective of this study was
to estimate genetic parameters for coat type traits and to estimate genetic correlations between coat
type and scan and carcass weight traits using single-step methods. Two coat type traits were defined
based on the month of scoring where scores recorded in April to October were considered as coat
type 1 (CT1) and those recorded in November to March were categorized as coat type 2 (CT2). The
coat type traits were moderately heritable, and the heritability of CT1 (0.36 ± 0.04) was higher than
CT2 (0.32 ± 0.03). Genetic correlations between coat type traits and steer and heifer ultrasound scan
traits (eye muscle area, intramuscular fat) were either low to moderate in strength, but favourable in
direction. The outcomes of this study suggest selection for sleeker coat type is possible without any
associated detrimental effect on scan and carcase traits.</p>