1. Example Herd A 800 cow Holstein Dairy Stature Analysis

2. ***Important, run PROFILE command in Dairy Comp before you run the commands on the proceeding slides

3. Genetic Averages by Stud Code By CSTUD Pct Count Av AGE Av ELNM AvEMILK AvESTAT Av EPL Av EDPR --------- ---- ------ ------- ------- ------- ------- ------- ------- 1 39 253 8 489 423 0.00 5.3 2.7 7 2 13 14 237 553 1.05 1.9 0.3 11 46 302 12 440 600 0.40 4.8 1.7 14 6 36 20 423 738 0.57 4.3 1.7 29 6 41 18 325 543 -0.16 3.2 1.2 94 0 2 15 -238 -482 1.35 1.0 -0.3 147 0 1 8 168 176 -1.60 2.0 -2.2 200 1 4 21 255 158 1.60 3.5 2.2 204 0 2 4 299 -526 1.60 2.2 1.4 ========= ==== ====== ======= ======= ======= ======= ======= ======= Total 100 654 11 444 524 0.23 4.8 2.0 Heifers Command: SUM AGE ELNM EMILK ESTAT EPL EDPR BY CSTUD GO4 LACT=0

4. Genetic Averages by Stud Code By CSTUD Pct Count Av AGE Av ELNM AvEMILK AvESTAT Av EPL Av EDPR --------- ---- ------ ------- ------- ------- ------- ------- ------- 1 1 7 53 115 548 0.60 2.4 1.8 7 28 223 49 123 203 0.77 1.0 -0.4 9 0 1 84 158 -62 -2.70 3.0 -1.3 11 23 178 47 175 207 0.88 1.7 0.5 14 15 120 36 262 451 1.10 1.8 1.2 29 18 141 46 257 342 0.33 2.2 1.4 54 0 1 32 -102 -165 0.00 0.0 -0.7 73 0 1 41 66 -163 0.90 3.4 0.8 76 8 64 44 125 33 1.63 0.5 -0.1 80 0 2 38 -346 -899 0.20 -1.5 -2.0 200 4 34 43 117 78 1.16 1.2 0.0 204 1 5 28 299 -526 1.60 2.2 1.4 223 0 1 67 -70 1540 2.00 -5.1 -4.4 250 1 8 32 266 -67 1.60 4.3 1.5 ========= ==== ====== ======= ======= ======= ======= ======= ======= Total 100 786 45 181 237 0.87 1.5 0.5 Cows Command: SUM AGE ELNM EMILK ESTAT EPL EDPR BY CSTUD GO4 LACT>0

5. Genetic Averages by Lactation By LACT Pct Count Av AGE Av ELNM AvEMILK AvESTAT Av EPL Av EDPR --------- ---- ------ ------- ------- ------- ------- ------- ------- 0 45 654 11 444 524 0.23 4.8 2.0 1 18 259 29 290 409 0.91 2.5 1.1 2 17 241 42 195 202 1.03 1.3 0.6 3 12 172 56 99 161 0.83 1.1 0.0 4 6 91 68 17 10 0.66 0.4 -0.3 5 1 19 78 49 165 -0.46 0.1 -0.1 6 0 4 91 125 254 -0.40 0.9 1.2 ========= ==== ====== ======= ======= ======= ======= ======= ======= Total 100 1440 30 300 369 0.60 3.0 1.2 Command: SUM AGE ELNM EMILK ESTAT EPL EDPR BY LACT GO4

6. Graph Estimated Stature by Age Herd has been trending down for Estimated Stature (particularly in heifers) Command: GRAPH ESTAT BY AGE GO4\RX84 BY LCTGP

7. GRAPH 305ME BY DIM LCTGP Since 305ME is generally underestimated in early lactation, 80 DIM was used as a cut point for more reliable 305MEs

8. Graph 305ME by Estimated Stature DIM>80 No Trend Observed; Greater Estimated Stature didn’t equate to higher 305MEs Command: GRAPH 305ME BY ESTAT LACT\R GO4 DIM>80

9. Putting Cows into Quartiles May sometimes be difficult to quartile cows based on estimated Stature due to many cows possibly having the exact same estimated Stature value Count of animals per quartile will likely never be exactly the same

10. Method Used to Quartile Cows Note: The following command would be used to coincide with the effect of Stature on Production 1.Generate list of cows – Command: LIST ID ESTAT FOR LACT>0 305ME>0 DIM>80 GO4 DOWNBY ESTAT\C 2.Export list to Excel 3.Determine quartile cut points in Excel

11. Production Averages, Estimated Stature < 0.3 By LCTGP Pct Count Av ELNM AvESTAT Av305ME Av DIM Av DOPN AvLGSCC --------- ---- ------ ------- ------- ------- ------- ------- ------- 1 23 33 268 -0.55 33514 214 133 1.0 2 37 53 163 -0.34 37340 243 121 2.5 3 41 59 81 -0.64 34997 219 142 2.3 ========= ==== ====== ======= ======= ======= ======= ======= ======= Total 100 145 153 -0.50 35516 227 132 2.1 Bottom 25% of Cows Sorted by Estimated Stature; DIM>80 Command: SUM ELNM ESTAT 305ME DIM DOPN LGSCC FOR ESTAT 0 DIM>80 LACT>0 BY LCTGP GO4 In the case of this example herd, I choose ESTAT<0.3 because it was determined to be the cut point for the bottom 25% of cows in this herd when I sorted them in the Excel spreadsheet

12. Production Averages, Estimated Stature > 1.5 By LCTGP Pct Count Av ELNM AvESTAT Av305ME Av DIM Av DOPN AvLGSCC --------- ---- ------ ------- ------- ------- ------- ------- ------- 1 42 67 199 2.12 34341 253 157 1.6 2 45 72 153 2.24 36360 243 117 2.3 3 13 20 31 2.34 35139 218 121 2.6 ========= ==== ====== ======= ======= ======= ======= ======= ======= Total 100 159 157 2.20 35356 244 134 2.0 Top 25% of Cows Sorted by Estimated Stature; DIM>80 Bottom 25% of cows sorted on Estimated Stature averaged 2.7 points less for Stature and 160 lbs more for 305ME Command: SUM ELNM ESTAT 305ME DIM DOPN LGSCC FOR ESTAT>1.5 305ME>0 DIM>80 LACT>0 BY LCTGP GO4

13. Economic Impact of Stature Current cost per lb of dry matter (DM) is 8.5 cents – Source: http://dairy.wisc.edu/Tools/Inputs.html Cows typically eat 3.5% of body weight in DM and typical DMI is between 50-55 lbs per day Change in 1 point STA = 24 lbs in Mature Body Weight – http://www.holsteinusa.com/genetic_evaluations/ss_linear.html 24 lbs * 3.5% = 0.84 lbs more DM/day * 365 = 306.6 lbs more DM/year 306.6 * $0.085 = $26.06/cow/year $26.06 * 1,000 cow dairy = $26,060/year Slide courtesy of Jenny DeMunck

14. Effect of Stature on Feed Costs (Example Herd A) Quartile 1Quartile 2Quartile 3Quartile 4Overall Number of Cows185214197190786 Average Estimated Stature per Quartile 2.161.210.49-0.450.85 ***Note: All cows with a valid Sire ID were included in the analysis Command Used: LIST ID ESTAT FOR LACT>0 GO4 DOWNBY ESTAT\C In this instance, I generated a list of all cows in the herd (milking + dry), sorted them by Estimated Stature, and then summarized the average Stature per quartile Alternate Command: SUM DOWNBY ESTAT FOR LACT>0 GO4\ZQ4 If desired, you could have Dairy Comp quartile the cows to give you the number of cows and average ESTAT per quartile as well

15. Effect of Stature on Feed Costs (Example Herd A) Difference between Top and Bottom Quartiles – 2.61 points for Stature – 2.61 * 24 lbs * 3.5% = 2.19 lbs more DM/day * 365 = 800.23 lbs more DM/cow/year – 800.23 lbs * $0.085 = $68.02/cow/year – $68.02 * 185 Quartile 1 cows = $12583.70/year Per Cow: A Quartile 1 cow will cost $68.02 more per year to feed than a Quartile 4 cow (sorted on Estimated Stature) Per Quartile: Quartile 1 cows will cost $12583.02 more per year to feed than Quartile 4 cows (sorted on Estimated Stature)