New Zealand Angus Carcass Evaluation and Progeny Test - ACEPT
1996
Paul L. Charteris, Dorian J. Garrick,
Institute of Veterinary, Animal
& Biomedical Sciences, Massey University and
The New Zealand Animal Breeding Trust
10 January 1997
SUMMARY 1996 Angus Carcass
Evaluation and Progeny TestIn recent years there has been a
shift in beef industry emphasis toward customer-focussed beef cattle
production and breeding systems. Meeting customer requirements through
improved meat quality characteristics can be achieved by selecting
genetically superior animals, through management changes such as
from pasture to grain-based diets, adoption of new post-harvest
technologies, e.g. electrical stimulation or a combination of these
practices. This report examines one of these avenues for improvement,
namely the identification and selection of genetically superior
Angus cattle.The New Zealand Angus Association in partnership with
Wrightson N.Z. Ltd. have demonstrated a commitment to genetic improvement
of Angus cattle for carcass and meat quality traits. Such genetic
change can be achieved through selecting superior sires based on
Estimated Breeding Values (EBVs). This document is the fourth annual
Angus Carcass Evaluation and Progeny
Test (ACEPT) analysis presenting EBVs for New Zealand
and overseas Angus sires. All bulls evaluated in the ACEPT scheme
are referred to as Angus Carcass Evaluated
(ACE) bulls.Sires used in the ACEPT programme have some progeny
finished on pasture, some progeny feedlot-finished progeny and some
bulls have progeny finished separately on pasture and feedlots.
The ACEPT analysis was performed so that bulls have EBVs based on
progeny performance on pasture or on feedlot, or for those bulls
with progeny finished on pasture and feedlots, two sets of EBVs
are provided, one set for each finishing environment.
Pasture-based ACEPT Analysis
This document presents progeny test information for fifty one Angus
sires, represented by their steer progeny bred in three successive
years and finished on pasture in the North Island, on feedlots in
the South Island. Some bulls had some progeny finished on pasture
and some other progeny finished separately on feedlots. Thirty one
new sires are represented in the 1996 ACEPT analysis. Participating
ACEPT Angus sires were mated to synchronised Angus cows using artificial
insemination. The cows and their progeny were managed under commercial
beef cattle farming conditions.The evaluations of bulls for pasture
use are based solely on the analysis from their pasture-finished
progeny. To date, ACEPT sires have been analysed based on performance
of their pasture finished progeny which have been slaughtered in
ten separate mobs in the North Island over the years 1994 to 1996.
Dates and locations of these steers are presented in Table Five.
Feedlot-based ACEPT Analysis
ACEPT sires were represented by feedlot finished steer progeny
from which carcass measures were taken in 1993 and 1996. Feedlot
finished steers from Te Mania Feedlot were slaughtered at PPCS-Belfast,
Christchurch in July 1996. Steers finished at Five Star Beef Whakanui
feedlot near Ashburton were slaughtered at Canterbury Meat Packers
on eight separate dates in 1993 and 1996.
Sire trait leader list for pasture-evaluated ACE bulls
Bulls with evaluations based on pasture-finished offspring are eligible
for entry to the trait leader list. Bulls with less than 10 pasture-finished
progeny are not considered. A higher proportion of progeny of trait
leader bulls are expected to achieve Asian market premiums than
progeny of other bulls. Meat colour, fat colour and pH are the major
determinants of eligibility for these premiums.Sire trait leaders
are presented for ACEPT sires based on records from pasture-finished
progeny only. Lack of market signals for carcass and meat quality
traits of feedlot-finished cattle means that sires which will improve
profitability of feedlot finishing operations could not be identified.
Table One Estimated Breeding Values (EBVs) and sire trait leaders
for pasture-evaluated ACE sires
| Sire |
No
progeny |
Carcass
wt (kg) |
BCS
|
BFS
|
pH
|
BMS
|
EMA
|
FD
|
| Rito 2100 |
25
|
-7.32
|
0.29
|
-0.25
|
0.04
|
-2.56
|
-0.16
|
-0.29
|
| Kaharau High Drive 209 |
5
|
-3.16
|
-0.15
|
-0.09
|
-0.02
|
-0.19
|
0.18
|
0.11
|
| Te Mania Fortifier |
3
|
3.80
|
0.13
|
0.29
|
0.01
|
0.89
|
-0.05
|
0.47
|
| Cricklewood Alone |
1
|
4.09
|
-0.06
|
-0.01
|
-0.01
|
0.00
|
-0.04
|
0.94
|
| Hingaia 599 |
3
|
0.14
|
-0.07
|
0.11
|
-0.03
|
-1.85
|
-0.02
|
0.47
|
| Kaharau Northern Sky |
4
|
1.99
|
-0.14
|
0.06
|
-0.02
|
0.80
|
-0.15
|
-1.25
|
| Bruno 652 of Lairdvale
|
5
|
-10.62
|
-0.12
|
-0.23
|
0.06
|
-2.53
|
-0.09
|
-0.26
|
| Glenbold 811 |
5
|
-8.28
|
0.03
|
0.05
|
0.02
|
2.54
|
0.21
|
0.30
|
| Bruno 652 of Lairdvale |
2
|
7.27
|
0.16
|
-0.32
|
0.00
|
0.71
|
-0.19
|
-0.61
|
| Springdale Solo |
2
|
-2.24
|
-0.10
|
-0.13
|
-0.02
|
-0.05
|
-0.01
|
-0.03
|
| Rawhiti Daniel 813 |
5
|
6.58
|
-0.03
|
0.16
|
-0.01
|
0.56
|
0.03
|
0.14
|
| Ruru Spicer |
3
|
-0.35
|
0.05
|
0.02
|
0.02
|
1.27
|
-0.04
|
-0.89
|
| Ranui Totara Drive |
3
|
-4.80
|
0.32
|
0.13
|
0.00
|
-1.55
|
-0.22
|
-0.05
|
| Scotch Cap |
17
|
4.41
|
-0.31
|
0.20
|
-0.03
|
4.06
|
0.52
|
1.04
|
| Ranui 49er |
13
|
2.59
|
-0.14
|
0.11
|
-0.05
|
-2.80
|
-0.12
|
0.44
|
| NAE Blackturpin |
12
|
2.02
|
0.12
|
-0.29
|
-0.01
|
1.01
|
0.11
|
-0.98
|
| Kaharau Statesman |
14
|
-4.02
|
-0.20
|
-0.11
|
-0.08
|
0.63
|
-0.07
|
0.71
|
| Kaharau 422 |
11
|
9.62
|
-0.05
|
0.26
|
0.05
|
-1.71
|
-0.13
|
0.14
|
| Kaharau 380 |
11
|
0.31
|
0.07
|
0.29
|
0.05
|
1.25
|
-0.08
|
0.19
|
| Rawhiti Barker |
10
|
-0.09
|
0.11
|
-0.28
|
-0.07
|
0.42
|
0.32
|
-1.21
|
| Springdale Brosco 754 |
14
|
-5.46
|
-0.22
|
0.09
|
0.01
|
-2.17
|
0.10
|
0.68
|
| Atahaua Charisma |
2
|
-3.03
|
-0.12
|
0.02
|
-0.01
|
-0.46
|
0.02
|
0.32
|
| Waitapu Jubilee |
3
|
5.82
|
0.00
|
0.03
|
0.02
|
-1.58
|
-0.15
|
-0.65
|
| Waitapu Middleburg |
4
|
-3.69
|
0.11
|
-0.07
|
-0.01
|
2.16
|
0.13
|
-0.35
|
| Woodbank Packpower |
1
|
0.89
|
0.00
|
0.01
|
-0.01
|
-0.13
|
-0.01
|
0.69
|
| Atahua Excellence |
4
|
1.05
|
0.01
|
-0.07
|
0.04
|
-1.03
|
-0.03
|
0.52
|
| Ranui Top Pine |
4
|
-1.51
|
0.08
|
-0.06
|
0.02
|
1.64
|
-0.13
|
-0.40
|
| Te Mania 168 / 90 |
6
|
3.45
|
0.32
|
0.17
|
0.05
|
1.84
|
-0.09
|
0.41
|
| Waitapu Sabbath |
9
|
0.51
|
0.07
|
-0.10
|
-0.01
|
-1.17
|
0.15
|
-0.60
|
Table One provides Estimated Breeding Values
(EBVs) for sires based on all ACEPT sired pasture finished progeny
analysed to date. The EBVs are taken from combined records from
ten mobs of steers that were slaughtered at Manawatu Beef Packers
(1994, 1996), Richmond-Pacific (1994, 1995, 1996) and Wairoa Beef
Packers (1995).
EBV Estimated Breeding Value of the sire, in units of measurement
of the trait.
No progeny/sire The total number of pasture-finished progeny
evaluated per sire. Includes all six pasture-finished progeny mobs.
CWT Hot carcass weight recorded immediately after slaughter
and dressing.
BCS Beef Colour Standard. Meat colour as assessed by Japanese
beef grading standards Prepared as seven continuous standards ranging
from 1 (pale pink) to 7 dark red. A lower EBV is desirable.
BFS Beef Fat Standard. Fat colour as assessed by Japanese
beef grading standards. Obtained from visual colour appraisal, ranging
from 1 (white) through to 7 (creamy yellow). Since white fat is
more desirable, a lower or negative EBV for fat colour is desirable.
pH Ultimate muscle pH, -a measure of acidity. Values should
be 5.5-5.6, with values greater than 5.8 leading to poor keeping
qualities of the meat.
BMS Beef Marbling Standard. Marbling as assessed by Japanese
beef grading. BMS is obtained subjectively with assistance from
standard charts and ranges from 1 (little or no marbling ) to 12
(abundant marbling). A positive EBV is desirable.
EMA Eye muscle area (cm2) or rib-eye area measured
between the 12/13th rib. A positive value is desirable.
FD Subcutaneous fat depth (mm) over the eye muscle taken
between the 12/13 th rib. A lower or negative value is desirable.
ACE Trait leader sires are highlighted.
Trait leader sires must have at least 10 pasture-finished
progeny to be eligible for inclusion in trait leader lists.
Trait leader sires are determined by percentage of progeny capturing
Asian market premiums. Premiums are based on those offered by Richmond-Pacific
for cattle entering the Asian beef programme.
Table Two Estimated Breeding Values for growth and carcass traits
for feedlot-evaluated ACE sires
| SIRE
|
No
progeny
per
sire |
Start
weight |
End
weight |
Daily
Gain |
Carcass
Wt
|
Dressing
out
|
Frame
score
|
| |
|
(kg)
|
(kg)
|
(kg/day)
|
(kg)
|
(%)
|
(1-3)
|
| Merchiston
Playboy |
11
|
0.4
|
-6.6
|
-0.03
|
-2.4
|
0.11
|
0.06
|
| Rito
2100 |
22
|
-0.4
|
-2.0
|
0.00
|
-1.6
|
0.13
|
-0.11
|
| Kaharau
High Drive 209 |
20
|
1.0
|
22.9
|
0.10
|
14.7
|
-0.01
|
0.14
|
| Kaharau
Express |
8
|
-2.1
|
11.3
|
0.07
|
3.9
|
-0.20
|
-0.02
|
| Kaharau
Commander |
9
|
-3.9
|
-0.3
|
0.02
|
-1.6
|
-0.19
|
0.16
|
| Te
Mania Fortifier |
18
|
-12.4
|
-28.6
|
-0.07
|
-17.8
|
0.31
|
-0.11
|
| Ranui
Woburn 871 |
7
|
-11.5
|
-28.9
|
-0.08
|
-16.4
|
0.20
|
-0.46
|
| Cricklewood
Aim |
12
|
-7.5
|
-13.2
|
-0.03
|
-9.1
|
-0.04
|
0.04
|
| Cricklewood
Alone |
27
|
-12.1
|
-15.9
|
-0.02
|
-10.3
|
-0.10
|
-0.07
|
| Hi
Energy 3 of Commodore |
10
|
-9.0
|
-4.9
|
0.02
|
-0.4
|
0.35
|
0.04
|
| Pono
of Kawatiri |
14
|
12.5
|
-10.7
|
-0.11
|
-5.6
|
0.19
|
-0.04
|
| Hingaia
599 |
8
|
-4.2
|
-8.5
|
-0.02
|
-5.0
|
0.22
|
-0.27
|
| Turihau
Sledge |
5
|
11.7
|
20.4
|
0.04
|
9.3
|
-0.21
|
0.24
|
| Kaharau
Northern Sky 830 |
6
|
5.6
|
-4.0
|
-0.04
|
-0.5
|
-0.02
|
-0.07
|
| Bruno
652 of Lairdvale |
11
|
-0.8
|
15.4
|
0.06
|
11.7
|
0.18
|
0.23
|
| Glenbold
811 |
9
|
1.6
|
1.5
|
0.00
|
4.0
|
0.49
|
0.08
|
| Bruno
667 of Lairdvale |
9
|
11.8
|
25.2
|
0.05
|
19.0
|
0.16
|
0.11
|
| Springdale
Bruno 742 |
6
|
5.8
|
4.9
|
0.00
|
0.7
|
-0.43
|
-0.07
|
| Springdale
Solo |
4
|
-2.9
|
1.1
|
0.02
|
-3.4
|
-0.45
|
0.04
|
| Rawhiti
Daniel 813 |
9
|
6.1
|
-1.3
|
-0.03
|
2.3
|
0.08
|
-0.04
|
| Ruru
Spicer H14 |
6
|
2.1
|
11.5
|
0.04
|
3.1
|
-0.43
|
0.18
|
| Ranui
Totara Drive |
10
|
-1.1
|
6.6
|
0.03
|
1.3
|
-0.63
|
0.11
|
| Scotch
Cap |
5
|
9.5
|
4.2
|
-0.02
|
4.1
|
0.27
|
-0.19
|
| Kaharau
956 |
1
|
|
|
|
0.3
|
|
|
| Prince
121/ 89 of Hundalee |
1
|
|
|
|
4.6
|
|
|
| Ranui
Radiata 820 |
2
|
|
|
|
2.3
|
|
|
| Springdale
Mono |
5
|
|
|
|
16.8
|
|
|
| Te
Mania 108 / 88 |
1
|
|
|
|
0.8
|
|
|
| Te
Mania 168 / 90 |
1
|
|
|
|
-0.2
|
|
|
| Te
Mania 244 / 91 |
8
|
|
|
|
-17.3
|
|
|
| Te
Mania 252 / 91 |
13
|
|
|
|
-40.0
|
|
|
| Te
Mania Nitecap |
12
|
|
|
|
19.2
|
|
|
| Te
Mania Trait Leader |
9
|
|
|
|
-17.6
|
|
|
| Totaranui
Dominator |
6
|
|
|
|
16.8
|
|
|
| Woodbank
PP 85 |
23
|
|
|
|
3.3
|
|
|
| Ranui
W1149 |
6
|
|
|
|
11.0
|
|
|
No progeny per sire The total number
of feedlot-finished steer progeny evaluated for that sire. Note:
some sires will have progeny only in the first mob slaughtered,
some only in the second and some sires will have progeny in both
mobs (Table One)EBV Estimated genetic merit of the sire in
units of measurement of the trait.
Start Wt Live weight (kg) on arrival at 5-Star beef feedlot.
End Wt Live weight (kg) taken at the feedlot 3-4 days prior
to slaughter.
Daily gain Feedlot average daily liveweight gain (kg/day).
A higher (more positive) value is desirable.
Carcass Wt Hot carcass weight (kg) recorded immediately post-slaughter.
A higher value is desirable.
Dressing Out The ratio of hot carcass weight to end weight
expressed as a percentage. A higher value is desirable.
Frame Score Subjective score expressed on a scale of 1 to
3.
Note: No live weight data or frame score measures were available
for progeny of 1996 ACE sires therefore no EBVs are provided.
Table Three Estimated Breeding Values (EBVs) for carcass and
meat quality traits for feedlot-finished ACE sires
| SIRE |
Yield
|
EMA
|
BMS
|
BCS
|
BFS
|
Firmness |
Texture
|
| |
(%)
|
cm2
|
(1-12)
|
(1-7)
|
(1-7)
|
(1-5)
|
(1-5)
|
| Merchiston
Playboy |
-0.41
|
-1.94
|
0.03
|
-0.13
|
-0.14
|
-0.03
|
0.11
|
| Rito
2100 |
0.15
|
-0.28
|
-0.14
|
-0.05
|
0.06
|
-0.02
|
-0.17
|
| Kaharau
High Drive 209 |
0.40
|
2.88
|
-0.13
|
-0.15
|
-0.10
|
0.02
|
-0.07
|
| Kaharau
Express |
0.42
|
0.61
|
0.02
|
-0.44
|
0.21
|
0.25
|
0.04
|
| Kaharau
Commander |
0.42
|
1.29
|
0.19
|
0.05
|
0.01
|
0.13
|
-0.01
|
| Te
Mania Fortifier |
0.21
|
0.35
|
-0.19
|
0.01
|
0.04
|
-0.04
|
0.18
|
| Ranui
Woburn 871 |
-0.18
|
0.02
|
-0.04
|
0.22
|
-0.03
|
-0.13
|
0.04
|
| Cricklewood
Aim |
-0.15
|
-0.23
|
-0.12
|
0.04
|
-0.04
|
-0.19
|
0.09
|
| Cricklewood
Alone |
-0.08
|
-0.75
|
0.16
|
0.32
|
0.15
|
0.00
|
0.08
|
| Hi
Energy 3 of Commodore |
-0.14
|
-0.65
|
0.02
|
0.18
|
-0.01
|
-0.09
|
0.07
|
| Pono
of Kawatiri |
0.29
|
1.42
|
0.23
|
0.36
|
-0.14
|
0.04
|
0.05
|
| Hingaia
599 |
-0.39
|
-1.82
|
0.18
|
-0.02
|
0.05
|
0.04
|
-0.04
|
| Turihau
Sledge |
0.52
|
2.42
|
0.06
|
-0.26
|
-0.14
|
0.20
|
0.08
|
| Kaharau
Northern Sky |
-0.06
|
-0.06
|
0.17
|
0.06
|
0.01
|
0.13
|
0.14
|
| Bruno
652 of Lairdvale |
0.12
|
1.18
|
-0.37
|
-0.09
|
0.01
|
-0.36
|
-0.16
|
| Glenbold
811 |
-0.20
|
-0.94
|
0.64
|
-0.13
|
0.01
|
0.28
|
0.16
|
| Bruno
667 of Lairdvale |
-0.04
|
-1.43
|
-0.23
|
-0.17
|
0.01
|
-0.04
|
-0.14
|
| Springdale
Bruno |
-0.33
|
-0.94
|
0.04
|
0.12
|
0.01
|
-0.02
|
-0.08
|
| Springdale
Solo |
0.06
|
1.42
|
0.16
|
-0.05
|
0.01
|
-0.08
|
0.08
|
| Rawhiti
Daniel 813 |
-0.28
|
-1.37
|
-0.39
|
0.15
|
0.01
|
-0.02
|
-0.24
|
| Ruru
Spicer |
-0.38
|
-1.02
|
-0.16
|
0.06
|
0.01
|
0.05
|
-0.05
|
| Ranui
Totara Drive |
-0.04
|
-0.78
|
-0.03
|
-0.12
|
0.01
|
0.02
|
-0.03
|
| Scotch
Cap |
0.08
|
0.60
|
-0.13
|
0.03
|
0.01
|
-0.14
|
-0.11
|
| Kaharau
956 |
|
|
-0.04
|
-0.01
|
-0.13
|
-0.02
|
-0.02
|
| Prince
121/ 89 of Hundalee |
|
|
-0.04
|
-0.01
|
-0.01
|
-0.02
|
-0.02
|
| Ranui
Radiata 820 |
|
|
-0.11
|
0.21
|
-0.13
|
-0.07
|
-0.07
|
| Springdale
Mono |
|
|
0.07
|
-0.02
|
-0.02
|
0.02
|
0.02
|
| Te
Mania 108 / 88 |
|
|
0.08
|
-0.01
|
0.12
|
-0.02
|
-0.02
|
| Te
Mania 168 / 90 |
|
|
0.08
|
0.12
|
0.12
|
-0.02
|
-0.02
|
| Te
Mania 244 / 91 |
|
|
0.29
|
-0.03
|
0.05
|
0.12
|
0.12
|
| Te
Mania 252 / 91 |
|
|
-0.09
|
-0.04
|
-0.19
|
-0.11
|
-0.11
|
| Te
Mania Nitecap |
|
|
0.04
|
-0.06
|
-0.15
|
0.11
|
0.11
|
| Te
Mania Trait Leader |
|
|
-0.15
|
-0.07
|
0.04
|
-0.04
|
-0.04
|
| Totaranui
Dominator |
|
|
-0.09
|
-0.03
|
0.35
|
0.08
|
0.08
|
| Woodbank
PP 85 |
|
|
0.05
|
0.05
|
-0.11
|
-0.01
|
-0.01
|
| Ranui
W1149 |
|
|
-0.10
|
-0.10
|
0.05
|
|
|
EBV Estimated genetic merit, in units
of measurement of the trait.
Yield Yield (%) of meat relative to carcass weight as assessed
by the Japanese multiple regression equation. A higher (more positive
value) is desirable.
EMA Eye muscle area (cm2) or rib-eye area
between the sixth and seventh ribs. A higher value is desirable.
BMS Japanese Beef Marbling Standard, obtained subjectively
with assistance from standard charts, scored from 1 (low marbling)
to 12 (very high marbling). A higher value is desirable.
BCS Beef Colour Standard, prepared as seven continuous standards
from visual appraisal using 1 (pale pink) to 3-5 (very good)to 7
(dark). A lower (more negative) value is desirable.
BFS Beef Fat Standard, obtained from visual appraisal involving
colour, lustre and quality of fat. The whiter fat has score 1 and
the yellower fat has score 7 (creamy yellow). A lower value is desirable.
Firmness Based on handle, from 1 (inferior-soft) to 5 (firm-very
good). A higher value is desirable.
Texture A visually appraised score of meat texture from 1
(inferior-coarse) to 5 (very good-fine). A higher value is desirable.
Note: Some measures of eye muscle area and Japanese yield
percentage were not recorded on progeny of 1996 ACE sires so EBVs
are not provided.
Table Four Estimated Breeding Values (EBV) of feedlot
-evaluated ACE sires for carcass and meat quality traits as reflected
by Japanese Beef Grading Characteristics
| SIRE
|
Inter-
|
Subcut
|
Rib
|
Muscle
|
GR fat
|
C fat
|
pH
|
| |
muscl
fat (mm)
|
fat
(mm) |
fat
(mm) |
Score
(1-50) |
depth
(mm) |
depth
(mm) |
(1-14)
|
| Merchiston
Playboy |
-1.53
|
1.69
|
-0.29
|
0.52
|
2.08
|
1.63
|
-0.02
|
| Rito
2100 |
0.56
|
-2.13
|
-0.23
|
0.78
|
-3.09
|
0.48
|
-0.02
|
| Kaharau
High Drive 209 |
-0.42
|
-0.87
|
0.24
|
-0.39
|
0.87
|
-1.01
|
0.01
|
| Kaharau
Express |
-0.36
|
-3.16
|
1.13
|
0.91
|
-3.32
|
-1.09
|
-0.01
|
| Kaharau
Commander |
-2.13
|
-2.65
|
0.04
|
-1.14
|
-2.18
|
-1.19
|
0.01
|
| Te
Mania Fortifier |
1.62
|
-1.14
|
-0.27
|
0.73
|
2.34
|
0.34
|
0.05
|
| Ranui
Woburn 871 |
0.19
|
-0.44
|
-4.42
|
0.55
|
-2.27
|
-1.05
|
0.01
|
| Cricklewood
Aim |
-1.52
|
0.79
|
-1.40
|
-0.96
|
1.20
|
1.79
|
-0.03
|
| Cricklewood
Alone |
-3.20
|
-0.84
|
-1.37
|
0.28
|
1.75
|
1.01
|
0.01
|
| Hi
Energy 3 of Commodore |
1.01
|
0.84
|
0.32
|
0.72
|
1.04
|
-0.95
|
0.00
|
| Pono
of Kawatiri |
1.53
|
-0.22
|
0.91
|
-2.03
|
2.99
|
-0.26
|
-0.02
|
| Hingaia
599 |
2.83
|
2.61
|
0.91
|
0.44
|
1.42
|
1.67
|
0.01
|
| Turihau
Sledge |
-0.02
|
0.15
|
3.85
|
0.21
|
0.45
|
0.43
|
0.00
|
| Kaharau
Northern Sky |
0.34
|
-0.42
|
-1.32
|
0.49
|
-1.21
|
-0.46
|
-0.02
|
| Bruno
652 of Lairdvale |
-4.37
|
-0.52
|
-0.40
|
1.58
|
1.58
|
-1.07
|
-0.06
|
| Glenbold
811 |
1.21
|
1.62
|
1.29
|
1.07
|
2.64
|
0.95
|
0.04
|
| Bruno
667 of Lairdvale |
3.75
|
-0.57
|
2.77
|
-1.00
|
-2.26
|
-1.70
|
0.01
|
| Springdale
Bruno |
-0.49
|
3.43
|
1.53
|
0.54
|
-1.16
|
-0.49
|
0.02
|
| Springdale
Solo |
0.61
|
-0.03
|
-2.21
|
0.37
|
-1.02
|
-1.64
|
0.04
|
| Rawhiti
Daniel 813 |
0.88
|
0.81
|
-0.35
|
-2.38
|
2.21
|
-0.03
|
-0.03
|
| Ruru
Spicer |
0.82
|
1.91
|
-0.89
|
-1.32
|
-1.91
|
0.15
|
0.03
|
| Ranui
Totara Drive |
-1.52
|
-1.44
|
-0.95
|
-0.70
|
-4.04
|
1.16
|
0.00
|
| Scotch
Cap |
0.20
|
0.60
|
1.12
|
0.76
|
1.89
|
1.33
|
-0.04
|
| Kaharau
956 |
|
|
|
|
-1.35
|
|
-0.01
|
| Prince
121/ 89 of Hundalee |
|
|
|
|
-0.90
|
|
0.01
|
| Ranui
Radiata 820 |
|
|
|
|
-1.33
|
|
0.11
|
| Springdale
Mono |
|
|
|
|
0.72
|
|
-0.02
|
| Te
Mania 108 / 88 |
|
|
|
|
-0.74
|
|
0.01
|
| Te
Mania 168 / 90 |
|
|
|
|
0.05
|
|
-0.01
|
| Te
Mania 244 / 91 |
|
|
|
|
2.02
|
|
-0.04
|
| Te
Mania 252 / 91 |
|
|
|
|
-1.36
|
|
-0.03
|
| Te
Mania Nitecap |
|
|
|
|
0.53
|
|
0.01
|
| Te
Mania Trait Leader |
|
|
|
|
1.73
|
|
-0.02
|
| Totaranui
Dominator |
|
|
|
|
1.41
|
|
0.00
|
| Woodbank
PP 85 |
|
|
|
|
0.86
|
|
-0.01
|
| Ranui
W1149 |
|
|
|
|
-1.63
|
|
|
No progeny per sire The total number
of feedlot-fed progeny evaluated per sire.
Inter-musc fat A measure (mm) of seam fat thickness (between
the two muscle layers) at the sixth and seventh ribs, about one-third
of the way around the side. A lower (more negative) EBV is desirable.
Subcut fat Subcutaneous fat thickness (mm) between ribs 6
and 7. A lower (more negative) EBV is desirable.
Rib thickness Total carcass wall thickness, except for subcutaneous
fat , between ribs 6 and 7, about half way round the side. A lower
EBV is desirable.
Muscle score Subjective score from 1 (inferior) to 50 (excellent)
based on visual appraisal of the hindquarter (high value cuts) muscling.
Not a Japanese criterion. A higher (more positive) EBV is desirable.
GR Tissue depth (mm) taken on the hot carcass between the
12th and 13th rib on a line between the hip and the shoulder. A
lower EBV is desirable.
C fat depth Fat depth (mm) over the eye muscle between the
12th and 13th rib. A lower EBV is desirable.
pH Ultimate muscle pH, a measure of muscle acidity. Values
should be 5.5 to 5.6, values above 5.8 lead to darker beef and poorer
keeping qualities.
Average Average measurement adjusted for the effect of farm,
date of slaughter, and weight of the carcass (as a covariate).
Covariate Change in the average per kg increase in carcass
weight.
Std Dev. Estimated standard deviation of measured performance.
Note: Measures of fat depth according to Japanese standards
were not made on some progeny of 1996 evaluated ACE sires so EBVs
are not provided
BACKGROUND
On-farm management
Sires were mated to synchronised Angus cows using artificial insemination.
These cows were managed under commercial farming conditions on a
number of properties located from Gisborne to Southland. Calves
were individually identified at birth enabling their growth rate,
carcass and meat quality measures to be traced back to their sire.
Mobs and their slaughter datesSires in the ACEPT programme have
been represented by steers slaughtered in ten pasture-finished mobs
in the years 1994 to 1996 and in nine feedlot finished mobs in the
years 1994 and 1996. Three mobs of cattle numbering 19, 12 and 9
steers originating from Ramoe station, Hawkes Bay were slaughtered
at Richmond-Pacific on 12 March, 1 May and 21 May 1996, respectively.
Ten steers from Papanui Station, Wellington were processed at Manawatu
Beef Packers AFFCO, Feilding 18 November 1996. Sixty seven steers
finished at from the Te Mania feedlot, Ashburton were slaughtered
at PPCS, Belfast near Christchurch on 22 July 1996. These feedlot
finished steers originated from three South Island properties, namely
from J. Cottier, Winford Hills, W. Rurtherford, Montrose and Te
Mania Angus, Parnassus. Twenty steers finished at the 5-Star Beef
Whakanui feedlot near Ashburton were slaughtered on four separate
dates, namely 21 August 1996 (14 steers), 12 September, 1996 (4
steers), and one steer slaughtered on each of 4th and
7th October. The distribution of progeny according to
their date and location of slaughter in addition to their property/feedlot
of origin are shown in Table Five.
Sires usedTo date, 51 Angus sires have been evaluated in the
ACEPT programme, represented by a total of 551 progeny. This document
presents progeny test information for all 51 Angus sires based on
the performance of their pasture finished and feedlot finished progeny.
All but two of the sires were New Zealand bred. Sires were nominated
for entry into the ACEPT programme on the basis of their own genetic
merit (based on Group Breedplan EBVs) and visual inspection by New
Zealand Angus Association representatives. Details of number of
ACEPT progeny per sire for pasture and feedlot finishing environments
are shown in Tables Six and Seven respectively.
Table Five Distribution of ACEPT slaughter mobs across property/feedlot
of origin and meat processors
| Finishing |
Farm / feedlot
of origin |
No. ACEPT sired
steers |
Location of slaughter |
Date |
| Pasture |
Taumaranui |
19
|
MBP,
AFFCO, Feilding |
13-May
1994 |
| Pasture |
Waimaha Stn, Gisborne
|
35
|
Richmond-Pacific,
Hastings |
5-April 1994 |
| Pasture |
Waimaha
Stn. Gisborne |
42
|
AFFCO,
Wairoa |
14-March
1995 |
| Pasture |
Ramoe, Stn. Gisborne |
22
|
Richmond-Pacific,
Hastings |
21-March 1995 |
| Pasture |
Waimaha
Stn. Gisborne |
23
|
AFFCO,
Wairoa |
7-April
1995 |
| Pasture |
Ramoe, Stn. Gisborne |
26
|
Richmond-Pacific,
Hastings |
20-April 1995 |
| Pasture |
Ramoe
Stn. Gisborne |
19
|
Richmond-Pacific,
Hastings |
12-March,
1996 |
| Pasture |
Ramoe Stn. Gisborne |
9
|
Richmond-Pacific,
Hastings |
21-May 1996 |
| Pasture |
Ramoe
Stn. Gisborne |
12
|
Richmond-Pacific,
Hastings |
1-May
1996 |
| Pasture |
Papanui Stn. Wellington |
10
|
MBP, AFFCO, Feilding |
18-Nov 1996 |
| Feedlot |
Five-Star Beef
Whakanui Feedlot |
69
|
Sockburn Ashburton |
12 July, 1993 |
| Feedlot |
Five-Star
Beef Whakanui Feedlot |
62
|
Sockburn
Ashburton |
13
July, 1993 |
| Feedlot |
Five-Star Beef
Whakanui Feedlot |
45
|
Sockburn Ashburton |
30-Aug 1993 |
| Feedlot |
Five-Star
Beef Whakanui Feedlot |
70
|
Sockburn
Ashburton |
31-Aug
1993 |
|
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