Oklahoma Farm Report masthead graphic with wheat on the left and cattle on the right.
Howdy Neighbors!
Ron Hays, Director of Farm Programming Radio Oklahoma Network  |  7401 N. Kelley Ave. Oklahoma City, OK 73111  |  (405) 841-3675  |  Fax: (405) 841-3674

advertisements
   
   
   
   
   
   
   
   

Agricultural News


Producers Advised to Add Udder Health and Condition to Their Evaluation When Culling Cows

Tue, 11 Apr 2017 09:47:25 CDT

Producers Advised to Add Udder Health and Condition to Their Evaluation When Culling Cows Dr. Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist, offers herd health advice as part of the weekly series known as the "Cow Calf Corner" published electronically by Dr. Peel and Dr. Glenn Selk. Today, Dr. Selk reminds producers to add udder health and condition to their list as they evaluate their cattle when making culling decisions this year.


"Every year at 'preg' checking time, ranchers evaluate cows and make decisions as which to remove from the herd. One criteria that should be examined to cull cows is udder quality. Beef cattle producers are not as likely to think about udder health and shape as are dairy producers, but this attribute affects cow productivity and should be considered. It may be easier to be accurate in your culling decisions, if you exam the udder soundness of the cows shortly after calving when they are at the peak of lactation and the udder is as large as at any time. Take time now during the peak of lactation to write down which spring-calving cows have unsound udders. Record the cow numbers of those to be culled next fall due to unsound udders. Their heifer calves would be undesirable prospects to become replacement heifers for your herd.



"The heritability estimates of udder characteristics are variable. A study done in Brahman cattle for the heritability of udder soundness indicated that progress could be made by selecting for udder soundness. They reported that 25 percent of the differences in udder soundness was due to genetics. Beef Improvement Federation Guidelines have suggested that the heritability of udder soundness in beef cattle is estimated at .16 to .22 which means that some progress can be made by selecting against unsound udders.



"Recent research at Kansas State University (Bradford, 2014 KSU Cattlemen’s Day) with large numbers of Hereford data has given even greater hope that improvement in udder quality can be made. They found heritabilities of .32 for overall udder score, .31 for suspension, and .28 for teat size. Plus, genetic correlations between traits were strong (.83). This means that selection for one trait (teat size or suspension) will result in improvement in the other trait.



"An experiment conducted at the OSU Range Cow Research Center near Stillwater gives some indication as to the impact of mastitis on beef cow performance. They found that cows with one or two dry quarters had calves with severely reduced weaning weights (50 - 60 pounds) compared to cows with no dry quarters. This represents a sizeable economic loss at weaning time.



"An evaluation system for udder soundness has been developed and used by some breeds. Teat shape and udder suspension are the two primary characteristics evaluated. Below are drawings representing unsound udders on the left and sound udders on the right.



"The first two drawings are teat shape. The very 'funnel' shaped teat may have been mastitic in the past. New born calves will find it difficult to nurse such a teat.



"Teat Shape (above) : Note the large 'funnel-shaped' teats on the cow on the left. A sound udder for teat shape is on the right.



"Udder Suspension (above): Weak udder suspension leads to 'pendulous' broken-down udders that also are very difficult for young calves to nurse. A sound udder with a strong udder suspension is on the right.



"Both cows on the left would be excellent candidates for culling at the next weaning of their calves. In addition, daughters of cows with poor udders should be expected to have less than desirable udders as well."



Click here for a video presentation of this topic.



   


 

WebReadyTM Powered by WireReady® NSI

 


Top Agricultural News

  • Oklahoma Grain Elevator Cash Bids for Friday afternoon, June 23, 2017  Fri, 23 Jun 2017 15:03:19 CDT
  • Market Analysis with Justin Lewis of KIS Futures for Friday, June 23, 2017  Fri, 23 Jun 2017 15:02:26 CDT
  • Senate Bill Would Shorten Depreciation of Farm Equipment for Farmers on a Permanent Basis  Fri, 23 Jun 2017 14:47:34 CDT
  • Cornbelt Economist Previews the June 30th Quarterly Grain Stocks Report  Fri, 23 Jun 2017 14:38:31 CDT
  • Plains Grains Calls Oklahoma Wheat Harvest Almost Done at 91 Percent Complete- Kansas Now 44% Harvested  Fri, 23 Jun 2017 03:32:13 CDT
  • Fresh Beef From Brazil Into the US Banned by USDA Secretary Sonny Perdue   Fri, 23 Jun 2017 03:22:20 CDT
  • To Sell or Not to Sell? Kim Anderson Answers All Your Wheat Harvest Questions - This Week on SUNUP  Thu, 22 Jun 2017 15:52:01 CDT
  • Oklahoma Grain Elevator Cash Bids as of 2:00 p.m. Thursday, June 22, 2017  Thu, 22 Jun 2017 14:24:51 CDT

  • More Headlines...

    Ron salutes our daily email sponsors!

    Livestock Exchange Oklahoma Ag Credit Oklahoma Farm Bureau National Livestock Credit P&K Equipment Tulsa Farm Show Stillwater Milling American Farmers & Ranchers KIS FUTURES, INC. Oklahoma Cattlemen's Association

    Search OklahomaFarmReport.com


       
       
    © 2008-2017 Oklahoma Farm Report
    Email Ron   |   Newsletter Signup

    WebReady powered by WireReady® NSI