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breed priority. The North American Limousin Foundation developed
a temperament scoring system and subsequently created the industry’s
first temperament and docility EPD.
In recent years, commercial producers have begun to develop a
progressive interest in livestock behavior in everything from weaned
calves to grass cattle and cow herds. While cow-calf operators have
always shied away from wild and flighty cattle, they are beginning
to focus on the selection of replacement heifers as an area of large
potential and possibilities.
Temperament Scoring Systems Show Relevance
The behavioral response of cattle to restraint and handling is an
indication of temperament (Burrow and Corbet, 2000). Variation in
this trait has allowed the beef cattle industry to develop measurement
techniques and scoring systems such as chute, exit and flight speed to
correlate temperament with branches of cattle productivity.
Chute scoring is a numbered system grading an animal on the
amount of struggling or aggression they portray in a chute, usually
from a ‘one’ meaning calm to a ‘four’ indicating extremely aggressive
with violent struggling. Exit speed uses point scoring monitoring the
speed of the animal as it leaves the chute, with flight speed measuring
the actual velocity of the animal at a designated distance from the
chute exit.
By using these and similar systems, numerous studies have shown
that cattle with excitable temperaments have higher levels of stress
hormones which in turn produces a lower rate of gain and decreased
growth rates. These animals also display negatively affected carcass
characteristics from stores of energy and protein, in addition to
more bruising and larger numbers of dark cutters. Conversely, calm
temperament has been associated with increased average daily gain
SYMENS BROTHERS
40th Annual
MUSCLE UP FOR PROFIT SALE
Thurs., FEB 27, 2020 • 1 PM
At the Farm - Amherst, South Dakota
SYES GAYLORD 25G
PB - 4/28/19 - DP/R - BW: 100 - Adj. WW: 747
Wulfs Devils Lake K118D x Miss SYES Pete 530D
BW: 4.5 WW: 74 YW: 113 MK: 20 SC: 0.5 DC: 20
YG: -.74 CW: 13 RE: 1.11 MB: -.29 $MTI: 48
SELLING 85 BULLS
(77 yearlings • 8 two-year-olds)
10 BRED HEIFERS • 10 OPEN HEIFERS
Purebred & Lim-Flex • All Polled - Red & Black
SYES GUARDIAN 271G
ALL CATTLE FULLY GUARANTEED.
FREE DELIVERY TO CENTRAL POINTS.
CALL FOR A SALE CATALOG .
S ymens B rothers
SYES
Your Guarantee of Predictable Genetics
P.O. Box 155 • Amherst, South Dakota 57421
John: 605/880-8061 • Warren: 605/237-2127
Office: 605/448-2624 • Fax: 605/448-5786
[email protected]
36
SALE TEAM:
AUCTIONEER:
C.K. “Sonny” Booth - 918/533-5587
SALE MANAGER:
American Cattle Services - 580/581-7652
SALE CONSULTANT:
Grassroots Consulting - 515/229-5227
PB - 3/31/19 - DP/R - BW: 90 - Adj. WW: 696
Wulfs Devils Lake K118D x Miss SYES Nightowl 171U
BW: 2.2 WW: 63 YW: 93 MK: 23 SC: 0.7 DC: 16
YG: -.79 CW: 8 RE: 1.13 MB: -.30 $MTI: 44
LODGING:
Hampton Inn - 605/262-2600
Aberdeen, SD
Catalog & Videos - BID ONLINE
• JANUARY 2020
SYES GATEWAY 908G
PB - 3/26/19 - HP/DB - BW: 95 - Adj. WW: 691
COLE Businessman 104B x Miss SYES 923U 907B
BW: 2.2 WW: 64 YW: 94 MK: 21 SC: 1.2 DC: 13
YG: -.81 CW: 21 RE: 1.41 MB: -.55 $MTI: 36