|
Table
3
Heifer development
research
Heifer performance by year
| |
1993-1994
|
1994-1995
|
1995-1996
|
1996-1997
|
| Number of heifers |
130
|
114
|
50
|
255
|
| Birth date |
3/17
|
3/20
|
3/13
|
3/12
|
| Birth weight |
83
|
85
|
89
|
84
|
| Weaning weight |
597
|
580
|
584
|
524
|
| Adj. 205 day weaning
weight |
611
|
576
|
554
|
544
|
| Adj. 205 day ratio
|
103
|
110
|
106
|
103
|
| Weight on project |
636
|
631
|
612
|
564
|
| % Mature weight on
project |
52
|
49
|
49
|
48
|
| Frame score |
5.8
|
6.4
|
5.7
|
5.1
|
| Projected mature weight(a) |
1238
|
1280
|
1237
|
1180
|
| Adj. 365 day yearling
weight |
911
|
826
|
778
|
824
|
| Pelvic area |
158
|
182
|
195
|
183
|
| Pre-breeding condition(b) |
7.2
|
6.8
|
6.8
|
6.7
|
| Pre-breeding weight
|
940
|
917
|
841
|
850
|
| Days of age at breeding
|
432
|
428
|
416
|
438
|
| % Mature weight at
breeding |
75
|
71
|
68
|
72
|
| Weight off project
|
1039
|
1101
|
1043
|
1000
|
| Condition off project(b) |
6.7
|
6.7
|
6.2
|
5.8
|
| % Mature weight off
project |
83
|
88
|
84
|
84
|
| ADG in drylot |
1.9
|
1.6
|
1.5
|
1.6
|
| ADG on pasture |
0.9
|
1.2
|
1.2
|
1.0
|
| Overall ADG(c) |
1.5
|
1.4
|
1.3
|
1.4
|
(a) Project mature
weight is estimated by using the following calculation (frame score*75)+800.
(b) Body condition
score range 1 to 9, with 1=emaciated and 9=obese.
(c) Average daily
gain (ADG) in drylot is also the same as ADG from time on the project
to time of synchronized AI breeding.
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