Effects of high energy diet on growth performance, carcass characteristics, and blood constituents of Hanwoo steers distributed by estimated breeding value for meat quality

Abstract

: This study was to investigate the effect of high energy diet on characteristics of Hanwoo steers distributed by estimated breeding value (EBV). The aim of this experiment was to determine the effect of high energy diet on the high and low beef group distributed by EBV for quality grades. We hypothesized that high energy diet is able to increase quality traits in high EBV groups when fed a high energy diet. A 2 × 2 factorial arrangement (High energy, control vs high EBV, low EBV) in a completely random design was used to feed 26 Hanwoo steers. Blood was drawn from each steers from 11 to 28 months. ADG and feed efficiency were not different between high energy and control diet (P>0.05). The level of DMI was greater at calf and early fattening diet in low EBV groups (P<0.05). Serum glucose and tryglyceride conecntrations were increased (P<0.05) by high EBV group from 22 to 28 month old. Serum NEFA concentration were plateau at 24 months at high EBV group and steady reduced by high energy diet (P<0.05). This data indicated that high energy diets increased serum glucose and triglyceride concentrations of high EBV steers at final fattening period.

Current situation and future prospects for beef production in South Korea — A review

“…Although there have been attempts to predict individual marbling potential using EBVs, few studies have evaluated the interaction of EBV and castration age, feeding program, and duration of feeding. According to a recent study of Hanwoo, serum components such as glucose and triglyceride levels are associated with marbling EBV and thus influence marbling score [ 25 ]. These findings indicate that the level of marbling is greater in high-EBV groups, but diet had no effect.…”