Health Weighted Index ABV

Health Weighted Index ABV

(a)

(b)

Figure 30. Mean cows' sire Health Weighted Index by cow's year of birth for (a) Jersey cows, and (b) Holstein cows (ABV estimates generated on 14th April 2020).

(a)

(b)

Figure 31. Cow's sire Health Weighted Index values by cow's year of birth for (a) Jersey cows, and (b) Holstein cows; boxes contain the central 50% of values for cows born in each year (ABV estimates generated on 14th April 2020).