If a guy uses high ced on heifers and low birth weight (assuming a low bw is a below breed average number) and he wants cows to be able to have a low ced, high bw calf, I assume then that you are not keeping any heifers out of first calf heifers?
IF you are making genetic progress then your heifer genetics should be superior to your cows.
IF you calve heifers a month earlier than your cows you certainly could keep the superior replacement
genetics from them.
Such as daughters of Connealy Capitalist CED 11 bw -0.1 CEM 12
When breeding use CED (11 = top 20%) and when selecting replacement females use CEM (12 = top 15%)
ced = calving ease direct
cem = daughters calving ease (calving ease maternal)
I would not keep any daughters of JMB Traction CED 1 bw 2.5 CEM 6 and consider him as Terminal only
top 25% CEM 11
Angus Breed Average CEM 9
bottom 25% CEM 6
Is a low bw/ced considered anything under breed average?
breed ave birth weight 1.1 lbs so anything under would be a lower bw than breed average
breed average ced 6 and so anything lower would be considered more difficult than breed average
If not, what is considered low, a negative bw?
sigh... no child left behind... any number with a - sign in front of it means it's negative... jk
25% = bw -0.1 or lower
30% = bw .2
Angus breed average bw 1.1
75% = bottom 25% bw 2.2 lbs or higher