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ACROSS BREED EPD TABLES FOR THE YEAR 2006 ADJUSTED TO THE BIRTH YEAR OF 2004 L. Dale Van Vleck and Larry V. Cundiff MARC-ARS-USDA Lincoln and Clay Center,

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Presentation on theme: "ACROSS BREED EPD TABLES FOR THE YEAR 2006 ADJUSTED TO THE BIRTH YEAR OF 2004 L. Dale Van Vleck and Larry V. Cundiff MARC-ARS-USDA Lincoln and Clay Center,"— Presentation transcript:

1 ACROSS BREED EPD TABLES FOR THE YEAR 2006 ADJUSTED TO THE BIRTH YEAR OF 2004 L. Dale Van Vleck and Larry V. Cundiff MARC-ARS-USDA Lincoln and Clay Center, NE Beef Improvement Federation 38 th Annual Meeting Choctaw, MS April 18-21, 2006

2 MEAN EPDs (Birth Year 2004, Spring 2006 Evaluations) Breed BWT WNWTYRWTMILK Angus+2.3+38.5+71.5+19.0 Hereford+3.7+37.0+63.0+14.0 Red Angus+0.4+29.0+51.0+15.0 Shorthorn+1.8+13.0+21.0+2.4 S. Devon+0.2+19.1+26.4+7.1 Brahman+1.8+14.1+23.1+6.1 Limousin+2.1+36.3+68.2+18.3 Simmental+1.8+34.1+59.5+5.4 Charolais+1.3+20.0+35.2+6.2 Gelbvieh+1.9+41.0+73.0+18.0 Maine Anjou+2.5+39.6+78.2+18.4 Salers +1.1+15.5+25.8+8.7 Tarentaise-1.5+4.0+11.0+1.0 Braunvieh+1.1+7.0+8.00.0 Brangus+2.0+22.7+37.8+9.9 Beefmaster+0.4+7.0+12.0+2.0 (Van Vleck and Cundiff, 2006)

3 CYCLE IIIIIIIVVVIVIIVIII Breed 70-7273-7475-7684-9092-9497-9899-0001-02 AngusXXXXXXXX HerefordXXXXXXXX Red AngusX ShorthornX S. DevonX BrahmanXX LimousinXX SimmentalXX CharolaisXXX GelbviehXXX Maine AnjouX SalersX TarentaiseX BraunviehX BrangusX BeefmasterX SIRE BREEDS WITH EPDs IN GERMPLASM EVALUATION PROGRAM

4 MARC Sires and Progeny by Breed (Wn. Wt.) Maternal Grand Sires Progeny Grand Sires Daughters progeny Hereford11217121087142890 Angus10613151045412152 Shorthorn251702269251 S. Devon151341469347 Brahman4050940216880 Simmental47564472391129 Limousin40533402401112 Charolais74600682351029 Ma. Anjou181971786485 Gelbvieh4855946232989 Tarentaise7191678341 Salers271762589351 Red Angus211992189330 Braunvieh7183792502 Brangus21208194399 Beefmaster222152051113

5 REGRESSION OF PERFORMANCE ON EPD’S AT MARC (LB/LB), (Van Vleck and Cundiff, 2006) Pooled over all breeds Pooled over all breeds Observed Expected Observed Expected Birth weight1.02 +.051.00 Wean weight.89 +.051.00 Yearling weight1.14 +.051.00 Maternal weaning weight.57 +.04.50 Milk1.13 +.061.00 Data for 2006 analysis for weaning wt included 16 sire breeds, 630 sires, and 7,465 progeny.

6 ESTIMATING AB-EPD FACTORS FOR WEANING WEIGHT (Van Vleck and Cundiff, 2006) Breed Avg. EPD Adj. Avg. 2004 EPD (i) AB-EPB Breedsolution Breed MARC Avg. Dev. Dev. Factor (n sires)MARC (i) 2004 bulls (Mi) a Angus Angus (A i ) b Angus (106)50438.523.5517.0.0.0 Hereford (112)50137.023.5513- 4.0- 1.5- 2.5 Red Angus (21)50529.027.6506- 11.1- 9.5-1.6 Charolais (74)52720.08.453820.3- 18.538.8 Limousin (40)50336.320.8517-.4- 2.2 1.8 Gelbvieh (48)51841.032.35268.72.56.2 Simmental (47) 52634.123.853618.2- 4.422.6 a M i = MARC (i) + b[EPD(i) 2004 – EPD(i) MARC ], where b = 0.89. b A i = (M i – M Angus ) – (EPD(i) 2004 – EPD (Angus)2004 ).

7 BREEDS MEANS AND DEVIATIONS FROM ANGUS (SPRING, 2006) Breed BWT WNWTYRWTMILK Angus85 (0.0)517 ( 0.0)903 ( 0.0)0.0 Hereford89 (4.3)513 (- 4.0)879 (- 24.2) - 23.3 Red Angus86 (1.1)506 (-11.1)882 (- 21.3) - 12.1 Shorthorn91 (6.6)522 ( 5.1)897 ( - 5.9)-1.6 S. Devon89 (4.0)521 ( 3.2)899 ( - 3.8)- 6.6 Brahman97 (12.0)529 (11.5)849 (- 53.6)13.6 Limousin89 (3.9)517 (- 0.4)878 (- 24.8)- 17.1 Simmental90 (5.3)536 (18.2)912 ( 8.8)- 1.7 Charolais 94 (9.0)538 (20.3)920 ( 16.8)- 11.4 Gelbvieh89 (4.3)526 ( 8.7) 882 (- 21.1)3.6 Maine Anjou91 (6.5)512 (- 5.1)866 (- 36.7)- 7.8 Salers88 (3.0)523 ( 6.0)899 ( - 3.6)-.1 Tarentaise87 (2.3)515 (- 2.8) 854 (- 49.0)0.6 Braunvieh89 (4.8)516 (- 1.6)851 (- 51.6)5.1 Brangus89 (4.9)521 ( 4.1)890 (- 12.6)- 11.7 Beefmaster92 (7.3)524 ( 7.0)881 (- 22.2)- 24.1 (Van Vleck and Cundiff, 2006)

8 Breed (range in yrs)BWWWYWMilk Angus (1979-2004).1041.492.840.75 Hereford (1979-2004).1520.931.900.51 Red Angus (1979-2005).0770.931.810.51 Mean.1111.122.180.59 Simmental (1985-2004)-.0490.531.10-.07 Gelbvieh (1984-2004) -0.0770.240.790.04 Charolais (1990-2005)0.0070.931.700.40 Limousin (1985-2005)0.0530.881.610.26 Mean-.0170.641.300.16 MEAN ANNUAL CHANGE FOR GROWTH TRAIT EPDs IN SEVEN PROMINENT BEEF BREEDS (lb/yr)

9 ADJUSTMENT FACTORS TO ADD TO EPDs OF SEVENTEEN BREEDS TO ESTIMATE AB-EPDs (SPRING, 2006) Breed BWT WNWTYRWTMILK Angus0.00.00.00.0 Hereford2.9 - 2.5 - 15.7-18.3 Red Angus3.0 - 1.6- 0.8- 8.1 Shorthorn7.130.644.615.0 S. Devon6.122.641.35.3 Brahman 12.535.9 - 5.226.5 Limousin 4.11.8- 21.5-16.4 Simmental 5.822.6 20.8 11.9 Charolais 10.038.853.11.3 Gelbvieh4.76.2 - 22.6 4.6 Maine Anjou6.3-6.2- 43.4- 7.2 Salers4.229.0 42.111.2 Tarentaise3.131.711.518.6 Braunvieh6.029.911.924.1 Brangus5.219.921.1- 2.6 Beefmaster9.238.537.3- 7.1 (Van Vleck and Cundiff, 2006)

10 Using EPDs and AB-EPDs BW WWYW MILK AngusAB - Factors.0000 GDAR EPDs2.9438415 Traveler 044 AB-EPDs2.9438415 SimmentalAB-Factors5.822.620.811.9 Black Irish EPDs-1.829.760.91.5 Kansas AB-EPDs4.052.381.713.4 TOSU Orlando EPDs2.455.694.9-.6 F004 AB-EPDs8.278.2115.711.3

11 AB-EPDs Within breed EPDs are accurate predictors of purebred and crossbred performance.Within breed EPDs are accurate predictors of purebred and crossbred performance. AB-EPDs are most useful for selecting bulls of two or more breeds for use in crossbreeding.AB-EPDs are most useful for selecting bulls of two or more breeds for use in crossbreeding. Uniformity in AB-EPDs should be emphasized for rotational crossing.Uniformity in AB-EPDs should be emphasized for rotational crossing. Divergence in AB-EPDs should be emphasized in selection of bulls for terminal crossing or calving ease in first calf heifers.Divergence in AB-EPDs should be emphasized in selection of bulls for terminal crossing or calving ease in first calf heifers.

12 Considerations for Across-Breed Factors for Carcass Traits Cundiff and Van Vleck BIF 2006

13 EPDs FOR CARCASS TRAITS BASED ON CARCASS (C), ULTRASOUND (U), OR COMBINED C&U ESTIMATES Marbling Fat thickness Ribeye area BreedCUC&U CUC&U CUC&U AngusXXXXXX ShorthornXXX Charolais XXX GelbviehXXX LimousinXXX HerefordXXX BrangusXXX Red AngusXXX South DevonXXX ChianinaXXX SalersXXX SimmentalXX X

14 Carcass traits (Regression by Breed) BreedNo.MarblingFat thicknessRibeye Angus5040.86  0.161.39  0.271.84  0.30 Shorthorn961.96  0.442.29  0.641.55  0.75 Limousin2551.93  0.571.70  0.52 1.25  0.30 Gellbvieh2831.86  0.392.19  0.551.77  0.31 Red Angus90 – –3.35  1.02 – – All12281.16  0.141.72  0.211.62  0.17

15 Ultrasound (Regression by Breed) BreedNo.MarblingFat thicknessRibeye Hereford4011.12  0.420.80  0.580.64  0.47 Angus4930.78  0.192.91  0.450.95  0.25 Simmental2640.45  0.310.26  0.751.47  0.43 Limousin2552.35  0.573.13  0.991.10  0.27 Brangus1043.41  0.740.04  2.460.85  0.47 All15170.95  0.152.41  0.311.01  0.15

16 Ultrasound & Carcass (Regression by Breed) BreedNo.MarblingFat ThicknessRibeye South Devon343.13  1.31-9.43  4.65 1.29  2.99 Charolais990.48  0.61 1.56  1.17 1.96  0.59 Maine Anjou940.94  1.11 2.35  1.88-2.47  1.77 Salers840.29  0.27 0.73  2.10 3.39  1.79 Red Angus901.05  0.31 – – 1.94  0.62 All 4010.62  0.19 1.31  0.89 1.79  0.40

17 Subcommittee to Develop Uniform Guidelines for Carcass Trait EPD Standards for reporting carcass EPD (slaughter steer basis, endpoint) Two-trait analyses with carcass and ultrasound records Basis for BIF Guidelines revision

18

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