Genetic Trends

Figures 1 and 2 illustrate the genetic trends in various growth, maternal and carcase traits and Figure 3 the trend for Japanese B3 %Index Value over time in the performance recorded Angus population.

There has been a consistent positive genetic trend in all growth and maternal traits. For carcase traits, there has been a positive trend in average EBVs for Carcase Weight and EMA, a slightly positive trend in average EBVs for RBY% and IMF%, and a slightly negative trend in Rib and Rump Fat EBVs.

Figure 1. Average EBVs over time for growth and maternal traits

Figure 2. Average EBVs over time for carcase traits.

Figure 3. Average Japanese B3 $Index Value over time.

Figure 4. Average CAAB $Index Value over time.

Figure 5. AverageDomestic Supermarket $Index Value over time.

Figure 6. Average Northern Terminal $Index Value over time.