VALIDATED – Variation in Angus Carcase Value

August 7, 2018 12:23 pm

A repeated study has validated the variation that exists in Angus carcase value. The study revealed a $695 per carcase difference based on carcase data collected in Cohort 5 of the Angus Sire Benchmarking Program (ASBP).

The study compared carcase values, on a progeny average basis, between the highest and lowest ranked sires. This is similar to the difference observed in Cohort 4 of the ASBP, being $619.

The progeny average carcase values were derived by applying industry based parameters to each steer carcase (n=556) from Cohort 5 of the ASBP. The parameters are based on a general long-fed production system (200+ days) with the aim of producing and selling high quality Angus beef products. The specific parameters applied were:

  • $8/kg carcase weight for an AUS-MEAT marbling score 3 carcase
  • Add $0.40/kg carcase weight per AUS-MEAT marbling score above 3.
  • subtract $0.80/kg carcase weight per AUS-MEAT marbling score below 3
  • Subtract 10c/kg carcase weight if >25 mm but less than 30 mm p8 (i.e rump) fat
  • Subtract 15c/kg carcase weight if 30 mm of p8 (i.e rump) fat or greater.

Additionally, progeny average values, including Carcase Value ($), are calculated using a least squares means (LSM) model which takes into herd and other contemporary group effects.

The carcase value progeny averages for each sire is listed in table 1 and graphed in figure 1. The progeny average figures for the component traits (Carcase Weight, Marbling Score and Rump fat) are also listed in table 1.

As expected, the sires with the highest carcase value progeny averages had progeny with higher carcase weights, coupled with higher marbling scores and rump fat in the optimum range. For example, the sire ranked 1st with a carcase value progeny average of $3,774 had a carcase weight, MSA Marbling Score and Rump Fat progeny averages of 449 kg, 508 score and 14.3 mm respectively.

The outcomes show that there is significant scope to select Angus sires and genetics for the component traits that impact on the overall value of Angus carcases such as carcase weight and marbling score.

Importantly, the corresponding EBVs available for selection decisions, being the Carcase Weight EBV and Intramuscular Fat (IMF) EBV, have a strong, positive relationship with the progeny average values as shown in figure 2 for carcase weight and figure 3 for IMF EBV to MSA Marbling score. Angus breeders with a goal of genetically improving carcase value should therefore have confidence in utilising related EBVs in their selection decisions.

The latest BREEDPLAN EBVs and progeny average figures for the ASBP sires are available from the Angus Australia website on angus.tech, specifically through the ASBP SELECT facility  or Sire Benchmarking Catalogue.

Sire # ASBP Carcase Progeny Carcase Weight (kg) MSA Marbling (Score) Rump Fat (mm) Carcase Value ($)
1 14 449 508 14.3  $3,774
2 15 446 500 14.3  $3,677
3 10 443 444 20.9  $3,642
4 7 445 485 17.8  $3,623
5 13 440 453 15.3  $3,587
6 10 434 480 18.0  $3,582
7 13 421 474 19.7  $3,579
8 13 438 446 15.7  $3,578
9 8 436 478 18.4  $3,573
10 13 433 454 17.0  $3,556
11 14 443 486 21.6  $3,550
12 12 437 473 22.1  $3,549
13 13 421 506 16.8  $3,541
14 12 437 472 17.8  $3,539
15 16 428 518 19.6  $3,536
16 16 422 502 18.1  $3,531
17 9 439 452 18.2  $3,530
18 15 429 446 20.0  $3,528
19 11 422 423 19.9  $3,523
20 12 436 424 17.2  $3,516
21 5 413 600 16.2  $3,505
22 12 422 504 19.1  $3,505
23 11 435 402 17.1  $3,502
24 12 421 579 16.7  $3,498
25 10 421 467 17.1  $3,469
26 12 420 461 17.6  $3,455
27 7 417 428 18.9  $3,450
28 9 411 497 22.6  $3,444
29 14 436 425 21.3  $3,442
30 11 441 415 19.1  $3,441
31 15 419 498 18.4  $3,435
32 17 424 459 20.1  $3,424
33 12 421 475 20.1  $3,412
34 11 426 432 20.1  $3,401
35 4 419 448 20.3  $3,377
36 8 416 457 19.5  $3,362
37 6 414 435 20.5  $3,308
38 8 419 387 19.7  $3,306
39 11 403 467 19.1  $3,275
40 10 409 413 20.6  $3,265
41 15 406 413 22.1  $3,264
42 16 417 385 20.3  $3,262
43 13 412 416 18.7  $3,255
44 9 411 435 20.5  $3,241
45 11 406 414 17.7  $3,222
46 14 394 406 17.1  $3,132
47 12 390 400 19.1  $3,115
48 7 396 411 22.2  $3,106
49 8 398 364 23.9  $3,079

Table 1 – Progeny Average Values for the Cohort 5 ASBP Sires Sorted in descending order by Carcase Value ($)

CLICK on the following images to enlarge

 

 

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