Livestock Management RANCHING
degree of accuracy as early as 28 days following breeding,” the team reports. “A skilled technician can perform pregnancy diagnosis with ultrasound as rapidly as rectal pal- pation. Furthermore, the fetal heart begins to beat approximately 21 days following fertilization, which allows fetal health and viability to be more accurately assessed.” The most recently developed
method of pregnancy diagnosis is blood sampling. This procedure iden- tifi es pregnancy status in cows as early as day 30 of gestation. It is an accurate and cost-effective method. Identifying both non-pregnant
Jordan Cattle Auction… Where Cattlemen Come to Buy and Sell!
Special Replacement Female Sales Thursday, August 1, 2013 • 11:00 a.m. • San Saba
Saturday, August 24, 2013 • 10:00 a.m. • San Saba
Featuring Deep Creek’s 200 Open True F-1 Tigerstripe Heifers Deep Creek’s consignment includes 200 fancy reputation open True F-1 weaned Tigerstripe heifers. These heifers are sired out of J.D. Hudgins Brahman bulls and choice Horned Hereford cows. Heifers have had all their shots, ocv and weaned in June. This group of heifers was born last fall and will weigh 600 to 675 pounds. If you want to own a set of heifers that will last you a lifetime, don’t miss this opportunity to be here on the 24th of August. For pictures and additional info on the cattle and ranch, please visit our website or give us a call. These heifers will be sorted and shaped into uniform groups and will sell at 12 noon as a featured consignment. Consignments welcome on the above sales!
Special Bull Offerings In conjunction with our regular sale. Bulls will sell at 11:00 am. Bulls will be fertility tested, meet trich requirements, and ready to go to work.
Thursday, October 10, 2013
11:00 a.m. • San Saba Consignments welcome!
WEEKLY SALES HELD AT 11:00 a.m. Monday - Mason & Thursday - San Saba For more info on above sales or online viewing and bidding, please call or visit our website.
and pregnant cows soon after the breeding season offers many man- agement and economic benefits. Predicting anticipated dates of calv- ing can allow separate management of early calving and late calving cows. Additionally, the informa- tion can be used to assist in culling and marketing late calving cows to shorten the breeding season. Cull- ing non-pregnant cattle will help improve the pregnancy rate the fol- lowing year.
Other measurements Calving percentage or live calv-
ing rate evaluates the collective re- sults of the breeding and calving seasons. This measurement is calcu- lated by subtracting the number of breeding females sold or died from the number of females exposed to a bull and then adding the number of pregnant females purchased. The total is divided into the number of live calves born and then multiplied by 100. Cattle must not only conceive,
but they must also give birth to live healthy calves if a cow-calf opera- tion is to be profi table. Reproduc- tive losses between breeding and calving may be due to one of the
54 The Cattleman August 2013
thecattlemanmagazine.com
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