Letícia Silva Pereira, Ludmilla Costa Brunes, Fernando Baldi, Adriana Santana do Carmo, Byanka Bueno Soares, Valentina Magnabosco, Eduardo da Costa Eifert, Cláudio Ulhôa Magnabosco
The objective of this study was to estimate the genetic parameters for feed efficiency-related traits and their genetic correlations with growth, male fertility, and carcass traits using multi-trait analysis in Guzerat cattle. Further, it aimed to predict the direct and correlated responses for feed efficiency traits when selection was applied for growth, male fertility, and carcass traits. The evaluated traits were adjusted weight at 120 (W120), 210 (W210), 365 (W365), and 450 days of age (W450), adjusted scrotal circumference at 365 days of age (SC365) and at 450 days of age (SC450), scrotal circumference, ribeye area (REA), backfat thickness (BFT), rump fat thickness (RFT), residual feed intake (RFI), and dry matter intake (DMI)...
March 25, 2023: Tropical Animal Health and Production