RFI Raw Data for

C Bulls




Here is the raw data on our Lilybrook C bulls of the Canadian Hereford Associationís Residual Feed Efficiency Trial number 7.

Feed efficiency (RFI, RG, RIG) values have been calculated across contemporary groups (pens in this case), however bulls at this time can only be compared within pen. Comparison across pens can be conducted when estimated breeding values (EBVs) have been calculated. 

RFIFAT_A refers to residual feed intake adjusted for final off-test backfat thickness and has been calculated across contemporary groups. It is expressed in kg DM/day and can be converted to lb DM/day by multiplying the value by 2.2046. Negative RFI means superior feed efficiency compared to a positive bull.

 RGFAT_A refers to residual gain adjusted for final off-test backfat thickness and has been calculated across contemporary groups. It is expressed in kg gain/day and can be converted to lb/day by multiplying the value by 2.2046. it identifies bulls with superior growth potential and positive values have superior growth to negative values.

 RIGFAT_A refers to residual intake and gain adjusted for final off-test backfat thickness and has been calculated across contemporary groups. It is expressed in Standard deviations above the mean. Positive RIG values means superior feed efficiency and superior growth compared to a bull with negative RIG values.

 RIGFAT_A is perhaps the most meaningful data point to consider at this point in the project as it represents the residual feed intake AND the residual gain. In other words this represents animals with lower feed intake but are also high gainers. In this instance, the more positive the number the better.

Here are the Raw Data RFI values for Trial #7


Pen  Tattoo Sire Dam Start WT Final WT  Lbs Gain ADG lbs FCR RFI RFI_FAT RG_FAT RIG_FAT RFI EPD PWG
Olds 1 LBH 107C ANCHOR 44U {DLF IEF HYF} LBH 52N MISS SILVER PRIDE 152S {DLF IEF HYF} 758.5 985.00 226.5 2.98 6.22 0.178 0.18 0.06 0.087 +97 +17.9
Olds 1 LBH 115C LBH 157K RIBSTONE 40W {DLF IEF HYF} AGA 97J MISS BRIGADER 93L 843 1068.00 225 2.96 6.86 0.147 0.14 -0.04 -0.415 +108 +25.5
Olds 1 LBH 120C GENETIC 137Y LAD 0827 {DLF IEF HYF}  LBH 39T MISS STERLING 6Y  761.5 961.00 199.5 2.63 6.57 -0.216 -0.22 -0.06 -0.012 +107 +16.8
Olds 1 LBH 125C LBH 73L STANDARD 268P {DLF IEF HYF} LBH 87M MISS DIAMOND 224U 913 1146.00 233 3.07 5.81 -1.172 -1.17 0.12 2.315 +111 +35.0
Olds 1 LBH 127C LBH 157K RIBSTONE 40W {DLF IEF HYF} LBH 106T MISS STANDARD 213X 862.5 1074.00 211.5 2.78 6.54 -0.247 -0.25 -0.01 0.285 +110 +28.9
Olds 1 LBH 128C CL 1 DOMINO 955W LBH 157K MISS RIBSTONE 129T 816 1064.00 248 3.26 5.73 -0.437 -0.44 0.17 1.565 +107 +37.2
Olds 1 LBH 141C MCCOY 55M ABSOLUTE 49S {DLF IEF HYF LBH 52N MISS SILVER PRIDE 115T  907 1109.00 202 2.66 6.27 -1.417 -1.42 -0.01 1.941 +112 +35.3
Olds 1 LBH 142C LBH 157K RIBSTONE 40W {DLF IEF HYF} AGA 97J MISS BRIGADER 93L 770.5 1004.00 233.5 3.07 5.92 -0.319 -0.32 0.11 1.095 +111 +28.3
Olds 1 LBH 145C LBH 73L STANDARD 268P {DLF IEF HYF} LBH 38T MISS STANDARD DOM 37Y 882 1051.00 169 2.22 8.47 -0.033 -0.03 -0.32 -1.759 +100 +16.9
Olds 1 LBH 148C LBH 38E SILVER PRIDE 52N {DLF IEF HYF}  LBH 87M MISS DIAMOND 6W 768 982.50 214.5 2.82 4.50 -2.768 -2.77 0.19 5.006 +122 +24.0
Olds 1 LBH 151C LBH 198T RIBSTONE 256A {DLF IEF HYF} LBH 45S MISS ASTER 72Y 805.5 1047.00 241.5 3.18 6.34 0.489 0.49 0.08 -0.259 +100 +25.1
Olds 1 LBH 154C LBH 20J STANMORE ET 265Y {DLF IEF HYF}  LBH 39U MISS RIBSTONE 90X 870 1090.00 220 2.89 6.78 0.123 0.12 -0.03 -0.374 +103 +36.0
Olds 1 LBH 156C AGA 121G STANMORE 20J {DLF IEF HYF} LBH 157K MISS RIBSTONE 17W  862 1145.50 283.5 3.73 5.94 0.677 0.68 0.24 0.426 +105 +35.1
Olds 1 LBH 158C LBH 268P STANDARD 106T {DLF IEF HYF} LBH 40W MISS RIBSTONE 204A 768.5 974.50 206 2.71 7.24 0.726 0.72 -0.11 -1.673 +103 +30.3
Olds 1 LBH 160C UU SENSATION 2042 {DLF IEF HYF} LBH 6238 MISS DAKOTA 166A 768.5 988.50 220 2.89 4.70 -1.629 -1.63 0.33 4.163

Olds 1 LBH 163C AGA 121G STANMORE 20J {DLF IEF HYF} LBH 236U MISS RIBSTONE 127Y 769.5 985.50 216 2.84 6.19 -0.493 -0.49 0.00 0.711 +112 +26.2
Olds 1 LBH 189C CC 77J STERLING 39T {DLF IEF HYF} LBH 72M MISS SUNSHINE 222T 783 998.50 215.5 2.84 6.08 -0.598 -0.60 0.03 1.028 +107 +27.8
Olds 1 LBH 191C LBH 38E SILVER PRIDE 52N {DLF IEF HYF} LBH 198T MISS RIBSTONE 278W 937.5 1125.00 187.5 2.47 7.39 1.119 1.12 -0.05 -1.866 +95 +36.2
Olds 1 LBH 1C GENETIC 137Y LAD 0827 {DLF IEF HYF}  LBH 40W MISS RIBSTONE 210Y 842 1017.00 175 2.30 8.41 0.313 0.32 -0.31 -2.218 +104 +9.0
Olds 1 LBH 278C LBH 40W RIBSTONE 171A {DLF IEF HYF} LBH 38T MISS STANDARD DOM 63Y  853 1104.00 251 3.30 5.65 -0.702 -0.70 0.19 2.081 +109 +36.3
Olds 1 LBH 30C GENETIC 137Y LAD 0827 {DLF IEF HYF}  LBH 40W MISS RIBSTONE 121Z  732 999.50 267.5 3.52 5.06 -0.602 -0.60 0.31 2.636 +113 +19.1
Olds 1 LBH 327C LBH 268P STANDARD 438Z {DLF IEF HYF}  LBH 47X MISS SUPER RIB 120Z  759 985.00 226 2.97 5.91 -0.366 -0.37 0.09 1.022 +112 +32.6
Olds 1 LBH 342C LBH 157K RIBSTONE 66T {DLF IEF HYF} LBH 20J MISS STANMORE 12S 800 966.00 166 2.18 8.28 0.468 0.47 -0.28 -2.253 +105 +18.4
Olds 1 LBH 365C XTC GUINNESS ET 38Z {DLF IEF HYF}  LBH 106T MISS STANDARD 20X {DLF IEF HYF}  822 1027.00 205 2.70 7.11 0.157 0.15 -0.09 -0.747 +103 +26.6
Olds 1 LBH 38C CL 1 DOMINO 955W LBH 107R MISS RIBSTONE 125T 812.5 1087.00 274.5 3.61 5.18 -0.614 -0.61 0.33 2.767 +109 +41.4
Olds 1 LBHM 102C UU SENSATION 2042 {DLF IEF HYF} LBH 24Y MISS RED SKYLINE 67A  714.5 971.50 257 3.38 5.79 0.363 0.36 0.17 0.436 +102 +27.5
Olds 1 LBHM 176C MCCOY 58G JACKPOT ET 105X {DLF IEF HYF} LBH 268P MISS STANDARD 404X  892.5 1134.00 241.5 3.18 6.72 0.314 0.32 0.00 -0.436 +98 +33.0
Olds 1 LBHR 135C NJW 51U 4037 DURAMAX 8X LBH 39T MISS STERLING 267Y 852.5 1116.00 263.5 3.47 6.32 0.849 0.85 0.14 -0.427 +96 +42.9
Olds 1 LBHR 161C SILVER 23K NEON 14N LBH 157K MISS RIBSTONE 250T  809.5 916.50 107 1.41 11.11 . . . .

Olds 1 LBHR 195C BLAIR-ATHOL 13K MAJOR 101N {DLF IEF HYF} LBH 268P MISS STANDARD 269X 845 1031.50 186.5 2.45 8.20 0.600 0.60 -0.25 -2.255 +99 +30.5
Olds 1 LBH 288C LBH 20J STANMORE ET 265Y {DLF IEF HYF}  LBH 157K MISS RIBSTONE 359T  827.5 1103.50 276 3.63 5.65 0.212 0.21 0.28 1.271 +107 +47.3
Olds 1 LBHM 96C BR 9279 EXTRA DEEP ET 106Z {DLF IEF HYF}  LBH 66T MISS RIBSTONE 116X 855 1051.00 196 2.58 6.62 -0.830 -0.83 -0.07 0.778 +108 +23.0
Olds 2 LBH 95C LBH 157K RIBSTONE 40W {DLF IEF HYF} AGA 97J MISS BRIGADER 93L 748 972.50 224.5 2.95 6.63 0.355 0.36 0.08 -0.061 +106 +25.5
Olds 2 LBHM 272C LBH 397W STANDARD 256Z {DLF IEF HYF}  LBH 39T MISS STERLING 323Y 870 1075.00 205 2.70 7.45 0.176 0.18 -0.04 -0.501 +102 +29.9
Olds 2 LBH 119C LBH 38E SILVER PRIDE 52N {DLF IEF HYF LBH 87M MISS DIAMOND 34S 843 1063.50 220.5 2.90 6.76 -0.178 -0.18 0.07 0.630 +104 +28.5
Olds 2 LBH 132C MCCOY 58G JACKPOT ET 105X {DLF IEF HYF} LBH 157K MISS RIBSTONE 22Y 874.5 1105.50 231 3.04 7.01 0.342 0.34 0.05 -0.196 +99 +42.2
Olds 2 LBH 157C AGA 121G STANMORE 20J {DLF IEF HYF} LBH 107R MISS RIBSTONE 115U  905 1122.00 217 2.86 7.46 0.520 0.52 -0.01 -0.803 +105 +33.6
Olds 2 LBH 165C AGA 121G STANMORE 20J {DLF IEF HYF}  LBH 87M MISS DIAMOND 117S  828 1021.50 193.5 2.55 6.41 -1.592 -1.59 0.01 2.306 +118 +23.6
Olds 2 LBH 169C LBH 157K RIBSTONE 40W {DLF IEF HYF} AGA 141J MISS STANDARD 203L {DLF IEF HYF}  769.5 1039.00 269.5 3.55 6.42 -0.064 -0.06 0.09 0.614 +108 +27.8
Olds 2 LBH 177C CL 1 DOMINO 955W LBH 157K MISS RIBSTONE 85U  881 1108.00 227 2.99 6.38 -0.692 -0.69 0.12 1.642 +108 +35.8
Olds 2 LBH 307C GENETIC 827 LAD 1123 {DLF IEF HYF} LBH 39T MISS STERLING 291A 758.5 944.50 186 2.45 6.91 -0.747 -0.74 -0.07 0.680 +112 +19.4
Olds 2 LBH 313C LBH 268P STANDARD 438Z {DLF IEF HYF} LBH 14S MISS STANMORE 42U {DLF IEF HYF}  750 968.00 218 2.87 6.31 -0.537 -0.54 0.08 1.224 +112 +31.7
Olds 2 LBH 317C CC 77J STERLING 39T {DLF IEF HYF} LBH 77K MISS STANDARD 102N 800.5 1066.50 266 3.50 7.63 0.018 0.02 -0.11 -0.635 +103 +35.3
Olds 2 LBH 320C LBH 20J STANMORE ET 265Y {DLF IEF HYF}  LBH 72M MISS SUNSHINE 249S 793 1017.00 224 2.95 6.61 0.005 0.01 0.06 0.348 +103 +39.8
Olds 2 LBH 323C LBH 20J STANMORE ET 265Y {DLF IEF HYF} LBH 87P MISS RIBSTONE ET 48T 761 993.00 232 3.05 6.73 0.544 0.54 0.08 -0.321 +101 +34.0
Olds 2 LBH 326C LBH 157K RIBSTONE 66T {DLF IEF HYF} LBH 20J MISS STANMORE 45R {DLF IEF HYF} 741 972.50 231.5 3.05 5.71 -0.849 -0.85 0.20 2.346 +115 +23.7
Olds 2 LBH 330C MCCOY 58G JACKPOT ET 105X {DLF IEF HYF} LBH 6238 MISS DAKOTA 116A  702.5 938.00 235.5 3.10 7.00 -0.007 0.00 -0.06 -0.328 +103 +28.1
Olds 2 LBH 336C LBH 268P STANDARD 438Z {DLF IEF HYF} LBH 20J MISS STANMORE 110R 847 1055.50 208.5 2.74 7.93 -1.319 -1.32 -0.21 0.688 +118 +23.6
Olds 2 LBH 364C LBH 198T RIBSTONE 256A {DLF IEF HYF}  LBH 40W MISS RIBSTONE 67Y  710 925.00 215 2.83 6.47 0.161 0.16 0.08 0.228 +105 +22.3
Olds 2 LBH 373C CC 77J STERLING 39T {DLF IEF HYF}  LBH 157K MISS RIBSTONE 86U  742.5 893.00 150.5 1.98 8.19 -0.594 -0.59 -0.24 -0.539 +108 +21.7
Olds 2 LBH 376C LBH 20J STANMORE ET 265Y {DLF IEF HYF} LBH 198T MISS RIBSTONE 95W 829.5 1039.00 209.5 2.76 7.65 0.673 0.67 -0.08 -1.403 +98 +39.2
Olds 2 LBH 378C JDH TS 20W CRACKER JACK 23A ET {DLF IEF HYF} LBH 105X MISS JP GALAXY 318Z 690 959.50 269.5 3.55 5.30 -0.094 -0.09 0.38 2.276 +103 +40.3
Olds 2 LBH 389C UU SENSATION 2042 {DLF IEF HYF}  LBH 252Y MISS RIBSTONE 346A  628.5 844.50 216 2.84 6.60 0.660 0.66 0.04 -0.693 +102 +26.6
Olds 2 LBH 393C XTC GUINNESS ET 38Z {DLF IEF HYF}  LBH 39T MISS STERLING 39Y 680.5 891.50 211 2.78 6.73 0.358 0.36 0.04 -0.285 +103 +19.3
Olds 2 LBH 398C JDH TS 20W CRACKER JACK 23A ET {DLF IEF HYF}  LBH 53W MISS STERLING ET 46Z {DLF IEF HYF} 718 933.50 215.5 2.84 6.15 -0.412 -0.41 0.11 1.183 +106 +37.4
Olds 2 LBH 399C LBH 157K RIBSTONE 198T {DLF IEF HYF}  AGA 97J MISS RED EXTRA 203N 776.5 953.00 176.5 2.32 7.77 -0.084 -0.08 -0.15 -0.741 +106 +32.4
Olds 2 LBH 41C GENETIC 137Y LAD 0827 {DLF IEF HYF}  LBH 20J MISS STANMORE ET 208Y {DLF IEF HYF} 843 1017.00 174 2.29 8.02 -0.077 -0.08 -0.16 -0.812 +107 +17.7
Olds 2 LBH 420C LBH 38T STANDARD DOM 223Y {DLF IEF HYF} LBH 14S MISS STANMORE 231U 721 951.00 230 3.03 8.65 1.677 1.68 -0.21 -3.548 +89 +32.9
Olds 2 LBH 428C LBH 397W STANDARD 256Z {DLF IEF HYF} LBH 21M MISS STANMORE 313S {DLF IEF HYF} 680.5 866.50 186 2.45 7.33 0.143 0.14 -0.09 -0.701 +103 +25.4
Olds 2 LBH 437C BP 144P STANDARD LAD 147W {DLF IEF HYF}  LBH 39T MISS STERLING 157A 662.5 917.00 254.5 3.35 4.98 . . . .

Olds 2 LBH 447C LBH 157K RIBSTONE 198T {DLF IEF HYF}  LBH 148S MISS STANDARD 273U  756.5 989.50 233 3.07 8.23 -0.080 -0.08 -0.22 -1.113 +104 +32.7
Olds 2 LBH 449C LBH 198T RIBSTONE 256A {DLF IEF HYF} LBH 53W MISS STERLING 128Z 720.5 941.00 220.5 2.90 6.55 0.037 0.04 0.06 0.269 +104 +41.4
Olds 2 LBH 450C XTC GUINNESS ET 38Z {DLF IEF HYF} LBH 40W MISS RIBSTONE 81Z 675 999.50 324.5 4.27 6.23 -0.591 -0.59 0.05 1.116 +111 +25.6
Olds 2 LBH 451C LBH 397W STANDARD 256Z {DLF IEF HYF}  LBH 21M MISS STANMORE 307S 678 879.00 201 2.64 7.50 1.237 1.24 -0.07 -2.136 +93 +25.7
Olds 2 LBH 91C GENETIC 137Y LAD 0827 {DLF IEF HYF} LBH 5C MISS ENERLAD 57N 756 891.00 135 1.78 8.39 -0.923 -0.92 -0.27 -0.251 +108 +2.0
C58 LBH 20C ANCHOR 44U {DLF IEF HYF}  LBH 102T MISS SUPER RIB 10Y 1018.4 1188.60 278.6 2.40 6.21 0.932 0.33 0.06 -0.106 +95 +35.5
C58 LBH 220C XTC GUINNESS ET 38Z {DLF IEF HYF} LBH 56M MISS STANMORE 9U  839 1010.60 256.5 2.29 4.83 -1.577 -1.62 0.18 3.051 +115 +20.5
C58 LBH 228C MCCOY 58G JACKPOT ET 105X {DLF IEF HYF}  LBH 47R MISS STANMORE 133A  879 1011.25 215 1.94 7.66 1.117 0.69 -0.24 -2.207 +93 +32.3
C58 LBH 232C ANCHOR 6Y {DLF IEF HYF} LBH 88Y MISS WALKER 21A  795 941.35 231.7 2.26 5.95 -0.420 0.06 0.02 0.027 +100 +24.7
C58 LBH 246C LBH 40W RIBSTONE 171A {DLF IEF HYF}  LBH 162W MISS STERLING 205Z 819.1 970.95 250.2 2.57 6.02 0.207 0.16 0.13 0.475 +103 +25.6
C58 LBH 24C LBH 198T RIBSTONE 256A {DLF IEF HYF}  LBH 39T MISS STERLING 111W 1030.9 1171.00 253.6 2.57 6.09 -0.330 0.05 -0.02 -0.183 +109 +26.2
C58 LBH 285C LBH 268P STANDARD 438Z {DLF IEF HYF}   LBH 243W MISS RIBSTONE 244Y 993.6 1160.65 252.9 2.82 5.69 -0.882 -0.95 0.06 1.576 +115 +32.5
C58 LBH 291C LBH 397W STANDARD 256Z {DLF IEF HYF}  LBH 38T MISS STANDARD DOM 43Y  942 1122.00 245 3.55 6.34 0.036 0.66 -0.03 -0.999 +101 +33.7
C58 LBH 297C MCCOY 58G JACKPOT ET 105X {DLF IEF HYF}  LBH 157K MISS RIBSTONE ET 48Z {DLF IEF HYF} 931.3 1074.25 251.25 2.67 5.51 -1.000 -1.31 0.01 1.727 +107 +36.6
C58 LBH 352C LBH 157K RIBSTONE 66T {DLF IEF HYF} LBH 75S MISS STD BRIT 203X  874.5 1008.40 214.3 1.19 6.97 0.222 0.22 -0.10 -0.817 +104 +26.4
C58 LBH 353C XTC GUINNESS ET 38Z {DLF IEF HYF}   LBH 268P MISS STANDARD 184T 803 917.15 186 0.72 6.09 -1.746 -1.56 -0.17 1.098 +111 +16.3
C58 LBH 359C JDH TS 20W CRACKER JACK 23A ET {DLF IEF HYF}  LBH 40W MISS RIBSTONE 326Y  917.2 1108.65 309.7 4.92 4.83 -0.555 -0.93 0.31 2.885 +109 +41.0
C58 LBH 372C CC 77J STERLING 39T {DLF IEF HYF}  LBH 40W MISS RIBSTONE 148Y  870 1023.90 265.5 2.50 5.58 -0.173 0.38 0.11 0.097 +107 +37.2
C58 LBH 50C LBH 157K RIBSTONE 40W {DLF IEF HYF}  LBH 20J MISS STANMORE 129S 818 0.00 0 0.00 . . . . . +111 +22.5
C58 LBH 55C CL 1 DOMINO 955W LBH 119R MISS SUNSHINE 352T  1006.5 1145.90 246.2 4.48 7.05 0.718 0.79 -0.11 -1.606 +99 +42.4
C58 LBH 59C AGA 121G STANMORE 20J {DLF IEF HYF}  LBH 87P MISS RIBSTONE 29S  833.5 1013.00 265 2.70 4.71 -1.552 -1.12 0.28 2.972 +118 +21.3
C58 LBH 60C GENETIC 137Y LAD 0827 {DLF IEF HYF}  LBH 107R MISS RIBSTONE 7U 887.2 981.85 195.1 1.02 6.23 -0.881 -0.66 -0.06 0.546 +109 +11.2
C58 LBH 67C CL 1 DOMINO 955W  LBH 20J MISS STANMORE 183P 917.5 1081.50 274.4 3.01 5.88 0.432 0.08 0.07 0.284 +104 +34.4
C58 LBH 72C LBH 20J STANMORE ET 265Y {DLF IEF HYF}  LBH 157K MISS RIBSTONE 76U 1015.3 1165.40 264.8 2.03 6.28 0.548 0.47 0.15 0.185 +103 +39.7
C58 LBH 76C UU SENSATION 2042 {DLF IEF HYF}  LBH 6238 MISS DAKOTA 66A  944.6 1057.75 208 1.68 7.09 -0.259 -0.83 -0.28 -0.454 +109 +26.8
C58 LBH 7C CL 1 DOMINO 955W  LBH 157K MISS RIBSTONE 43U 1078.5 1231.85 271.3 1.42 6.06 0.265 -0.01 0.09 0.518 +105 +38.7
C58 LBH 86C LBH 157K RIBSTONE 40W {DLF IEF HYF}  LBH 75S MISS STD BRIT 212W {DLF IEF HYF} 988.8 1151.75 269.3 2.53 5.94 0.175 0.02 0.09 0.461 +109 +34.5
C58 LBH 88C LBH 20J STANMORE ET 265Y {DLF IEF HYF}   LBH 40W MISS RIBSTONE 102Y {DLF IEF HYF}  1012.5 1208.25 312 2.76 4.96 -0.366 -0.56 0.33 2.510 +112 +40.1
C58 LBH 93C GENETIC 137Y LAD 0827 {DLF IEF HYF}  LBH 268P MISS STANDARD 215W 909.3 1012.00 196.4 3.50 7.61 -0.315 -0.32 -0.30 -1.220 +108 +23.0
C58 LBHM 33C LBH 102T SUPER RIB 335X {DLF IEF HYF} LBH 73L MISS STANDARD 46R 921.3 1066.75 193.6 1.01 6.52 0.434 0.25 -0.03 -0.500 +99 +22.9
C60 LBH 164C UU SENSATION 2042 {DLF IEF HYF} LBH 75S MISS STD BRIT 144W 876.4 1053.55 246.2 3.24 5.65 -0.807 -0.82 0.02 1.168 +110 +30.4
C60 LBH 200C ANCHOR 6Y {DLF IEF HYF}  LVH MISS 105X JACKPOT 4A 843 930.10 166.6 2.78 9.53 0.622 0.56 -0.51 -3.512 +91 +17.1
C60 LBH 209C GENETIC 137Y LAD 0827 {DLF IEF HYF} LBH 157K MISS RIBSTONE 33U 947.8 1100.55 256.5 3.20 5.89 -0.358 -0.28 0.03 0.510 +109 +25.0
C60 LBH 215C LBH 38E SILVER PRIDE 52N {DLF IEF HYF}   LBH 157K MISS RIBSTONE 130X  961 1127.10 268.3 2.90 4.76 -1.892 -1.71 0.20 3.305 +121 +37.4
C60 LBH 225C XTC GUINNESS ET 38Z {DLF IEF HYF}   LBH 157K MISS RIBSTONE 133W 912.2 1058.20 262.9 2.34 5.93 0.159 0.23 0.17 0.625 +105 +23.6
C60 LBH 238C JDH TS 20W CRACKER JACK 23A ET {DLF IEF HYF} LBH 105X MISS JP GALAXY 316Z 931.1 1112.25 316 3.19 5.52 1.044 0.61 0.37 1.215 +95 +42.9
C60 LBH 239C AGA 121G STANMORE 20J {DLF IEF HYF}   LBH 87M MISS DIAMOND 69X 904.7 1045.40 228 3.87 6.11 -0.983 -1.16 -0.09 1.038 +114 +26.5
C60 LBH 248C CC 77J STERLING 39T {DLF IEF HYF}   LBH 157K MISS RIBSTONE 89T {DLF IEF HYF} 822.9 1021.35 286.6 3.08 6.35 2.093 1.93 0.27 -1.053 +95 +29.0
C60 LBH 250C XTC GUINNESS ET 38Z {DLF IEF HYF} LBH 40W MISS RIBSTONE 20Z 929.6 1069.10 253.1 2.44 6.15 0.063 0.24 0.06 0.010 +107 +22.5
C60 LBH 261C ANCHOR 6Y {DLF IEF HYF} LBH 397W MISS STANDARD 24A  819.7 967.10 219.3 2.18 6.95 0.437 0.23 -0.14 -1.047

C60 LBH 267C AGA 121G STANMORE 20J {DLF IEF HYF}  LBH 87M MISS DIAMOND 182Y 896.5 1066.15 272.7 3.48 5.80 0.212 0.15 0.19 0.829 +108 +23.9
C60 LBH 275C LBH 40W RIBSTONE 171A {DLF IEF HYF}   LBH 47X MISS SUPER RIB 284Z {DLF IEF HYF} 764.9 903.75 257 1.61 4.46 -1.910 -1.73 0.19 3.284 +119 +17.4
C60 LBH 280C GENETIC 827 LAD 1123 {DLF IEF HYF}   LBH 53W MISS STERLING ET 138A {DLF IEF HYF} 875.5 1009.80 240.0 3.26 5.39 -1.476 -1.24 -0.01 1.572 +116 +27.3
C60 LBH 281C LBH 268P STANDARD 438Z {DLF IEF HYF}  LBH 40W MISS RIBSTONE ET 262Z {DLF IEF HYF} 841.1 1008.25 230.4 2.47 5.75 -0.966 -0.54 0.00 0.684 +115 +31.4
C60 LBH 290C LBH 397W STANDARD 256Z {DLF IEF HYF}  LBH 106T MISS STANDARD 148Z 847.2 1000.80 260.9 2.69 4.72 -1.763 -1.41 0.22 3.032 +115 +34.1
C60 LBH 350C JDH TS 20W CRACKER JACK 23A ET {DLF IEF HYF}  LBH 40W MISS RIBSTONE 31Z  904.2 1057.80 251.1 2.83 6.14 0.054 -0.35 -0.06 0.110 +104 +40.1
C60 LBH 39C LBH 198T RIBSTONE 256A {DLF IEF HYF}  LBH 39T MISS STERLING 172X  1029.5 1121.75 224.1 0.71 7.09 0.172 0.16 -0.17 -1.138 +104 +20.5
C60 LBH 442C LBH 38T STANDARD DOM 223Y {DLF IEF HYF}  LBH 66T MISS RIBSTONE 342X 800.8 930.15 229.2 1.73 6.15 -0.245 0.05 -0.01 -0.129 +102 +24.7
C60 LBH 47C LBH 157K RIBSTONE 40W {DLF IEF HYF}  LBH 102T MISS SUPER RIB 348X 965 1132.75 267.5 2.49 5.45 -0.706 -0.72 0.12 1.599 +115 +30.9
C60 LBH 56C CL 1 DOMINO 955W  LBH 56M MISS STANMORE 106W  956.6 1089.20 262.2 3.84 6.07 -0.027 0.40 0.05 -0.263 +106 +32.5
C60 LBH 75C UU SENSATION 2042 {DLF IEF HYF}  LBH 397W MISS STANDARD 175A 769.9 932.60 264.5 2.98 5.06 -0.832 -0.66 0.15 1.688 +111 +17.6
C60 LBH 78C LBH 157K RIBSTONE 40W {DLF IEF HYF}  LBH 235P MISS SUNSHINE 141S  949 1099.85 246.7 2.49 5.99 -0.465 -0.41 -0.08 0.073 +112 +37.5
C60 LBHD 458C LBH 20J STANMORE ET 265Y {DLF IEF HYF}  LBH 157K MISS RIBSTONE 21T  825.5 962.75 242.5 1.14 6.23 0.361 . . . +106 +38.7
C60 LBHM 140C MCCOY 58G JACKPOT ET 105X {DLF IEF HYF}  LBH 75S MISS STD BRIT 347W {DLF IEF HYF} 1028 1168.95 236.3 3.35 6.59 -0.335 -0.21 -0.13 -0.410 +101 +37.3
C60 LBHR 231C MCCOY 58G JACKPOT ET 105X {DLF IEF HYF}   LBH 157K MISS RIBSTONE 209T {DLF IEF HYF}  1088.9 1249.50 280.5 3.84 6.01 0.121 0.67 0.17 0.028 +103 +50.9
C60 LBHR 282C CC 77J STERLING 39T {DLF IEF HYF}  LBH 40W MISS RIBSTONE 28Z  986.5 1116.90 237.6 3.19 6.05 -0.951 -0.75 -0.07 0.575 +113 +37.8

The following is copied from the CHA website.

How do you use the Residual Feed Intake (RFI) score?
What is RFI measuring?

RFI is a measure of feed efficiency, and is defined as the difference between an animal's actual feed intake and its expected feed intake based on its size and growth.
Interpreting the RFI score
The AVERAGE animal has an RFI score of 100 in 2016. The average values for the EPD will change as EPDs are updated, so remain aware of the EPD average for Hereford cattle. A one-point change in RFI score represents 10 pounds of feed per year, and a larger number on the scale indi-cates the animal is more efficient. For more efficient bulls whose progeny eat less than ex-pected, their index values are larger. For example: a bull whose progeny will eat 10 lbs less over the year than we would expect would score 101, where the expected intake is based on growth and weight of the animal. A bull whose progeny will eat 200 lbs less over the year than expected will have a score of 120. For less efficient bulls whose progeny eat more than expected, their index val-ues are lower. Where a bullís progeny that eats 10 pounds more than expected over a year will have an index of 99 and a bullís progeny that eats 200 lbs more a year will score 80.
Post Weaning Gain (PWG)
As RFI is strictly a measure of efficiency it is important to balance this trait with gain. To ensure producers are able to select efficient cattle along with the ability to gain, the CHA is introducing a Post Weaning Gain (PWG) EPD that is simply WW EPD subtracted from YW EPD. This value is expressed in expected post weaning pounds of gain; the difference between yearling and weaning. The AVERAGE animal in the Hereford breed in 2016 is 30 for PWG.


Last updated: Dec 13, 2016


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