Limousin 365 2020_L365M_jan2020-issue | Page 39

(ADG), health and meat quality plus superior responses to infections, which improves overall herd productivity (Burrow, 1997; Fell et al., 1999; Kadel et al., 2006). Disposition Research Trials Indicate Differences In 2012, Grandin and Vetters documented just under 1,200 yearling steers using exit and flight speed scoring systems. 357 were then moved to a 140-day research feedlot trial where they were weighed and scored with both systems at 35-day intervals. They concluded that exit speed (ES) and flight speed (FS) systems were reliable indicators of temperament along with having a direct connection to ADG. Trials completed by R.D. Randle and J.F. Baker from Texas A&M University and the University of Georgia respectively, used two radar detectors placed six feet in front of a squeeze chute to gather exit speeds. They deduced that calves with higher speed scores had SYES GEEWHIZ 68G PB - 4/24/19 - HP/R - BW: 96 - Adj. WW: 746 Wulfs Devils Lake K118D x Miss SYES Apostle 463D BW: 3.3 WW: 67 YW: 100 MK: 27 SC: 0.8 DC: 16 YG: -.76 CW: 11 RE: 1.16 MB: -.28 $MTI: 46 SYES GENE BANK 464G PB - 3/31/19 - HP/DB - BW: 74 - Adj. WW: 653 SYES Easy Going 77E x Miss SYES Roscoe 464T BW: -2.2 WW: 58 YW: 94 MK: 24 SC: 1.0 DC: 4 YG: -.81 CW: 10 RE: 1.33 MB: -.57 $MTI: 34 SYES GLADIATOR 78G PB - 3/25/19 - HP/B - BW: 90 - Adj. WW: 750 WASY Bakers Man 629B x Miss SYES Stetson 77Z BW: -0.3 WW: 76 YW: 113 MK: 18 SC: 0.4 DC: 18 YG: -.81 CW: 17 RE: 1.49 MB: -.43 $MTI: 44 lower weight gains than calves with lower exit speed scores. They also agreed with previous studies that heifers generally scored higher in exit speeds, thereby confirming the need to note available data when selecting replacement heifers. And more than weight gain has proven to be negatively affected. An Oregon trial on reproduction tested more than 400 range cows using both a chute and exit speed scoring system. Twenty five percent of the cows were scored as aggressive and finished with a pregnancy rate of 89% while the adequate temperament cows delivered a 95% pregnancy rate. Since exit speeds can be expensive and cumbersome to use, a combined study between Montana State University and Idaho State University in 2012 attempted to compare chute and exit speed scores with physiological responses of body temperature, continued on page 38 SYES GABRIEL 530G PB - 4/7/19 - HP/R - BW: 92 - Adj. WW: 705 L7 3014A x Miss SYES Urban 930Y BW: 2.0 WW: 62 YW: 92 MK: 20 SC: 0.4 DC: 15 YG: -.80 CW: 8 RE: 1.23 MB: -.49 $MTI: 38 SYES GRAND SLAM 104G PB - 3/30/19 - HP/HB - BW: 96 - Adj. WW: 711 COLE Businessman 104B x Miss SYES Abbey 304A BW: 2.3 WW: 65 YW: 99 MK: 27 SC: 1.6 DC: 11 YG: -.84 CW: 26 RE: 1.52 MB: -.58 $MTI: 35 SYES GUSTO 429G PB - 3/25/19 - HP/HB - BW: 80 - Adj. WW: 854 LFLC Checking Account 701C x Miss SYES Edith 429E BW: 0.3 WW: 72 YW: 107 MK: 23 SC: 1.12 DC: 3 YG: -.83 CW: 29 RE: 1.54 MB: -.53 $MTI: 39 • JANUARY 2020 SYES GAINER 244G PB - 4/1/19 - HP/R - BW: 106 - Adj. WW: 734 Wulfs Devils Lake K118D x Miss SYES Urban 245B BW: 4.7 WW: 73 YW: 117 MK: 23 SC: 0.7 DC: 15 YG: -.76 CW: 25 RE: 1.26 MB: -.16 $MTI: 53 SYES GAME PLAN 17G PB - 3/30/19 - HP/HB - BW: 97 - Adj. WW: 663 Wulfs Compliant K687C x Miss SYES Roscoe 317U BW: 2.6 WW: 71 YW: 110 MK: 22 SC: 0.4 DC: 11 YG: -.75 CW: 10 RE: 1.20 MB: -.32 $MTI: 46 SYES GRADE POINT 635G PB - 3/8/19 - HP/HB - BW: 76 - Adj. WW: 650 SYES Encore 315E x Miss WASY Edna 636E BW: -1.4 WW: 72 YW: 111 MK: 19 SC: 0.3 DC: 11 YG: -.87 CW: 23 RE: 1.52 MB: -.48 $MTI: 42 37