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Agricultural News


Selk Recommends Using "Oklahoma Gold" or "Oklahoma Super Gold" for Replacement Heifers

Tue, 17 Jun 2014 16:16:58 CDT

Selk Recommends Using


Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist, writes in the latest Cow-Calf Newsletter.


Fall born replacement heifers have been (or soon will be) weaned and will be at a very critical growing period. It is important that they grow at about 1.5 pounds per day from weaning until the start of the breeding season. Central and Eastern Oklahoma has been fortunate to receive spring rains and in some cases will produce adequate forage quantity for the cow herd and the replacement heifers. Currently summer pastures are green, growing, and adequate in protein content. However, warm season pastures such as native grass or bermudagrass can be expected to be declining in forage quality in the hot, dry days of July, August, and September. Also these grasses will be reaching plant maturity which accelerates the decline in protein content.


Therefore, the young heifers must receive supplemental protein to continue to grow at the necessary pace of 1.5 pounds per head per day going into their first breeding season. An economical solution would be to give these heifers 1.5 to 2 pounds per head per day of the protein supplement called Oklahoma Gold. This is an OSU-developed protein supplement scheme that consists of a high protein (38% - 45%) pellet that contains the label-recommended dosage of one of the ionophores. Ionophores are feed additives (monensin or lasalocid) that improve feed utilization, inhibit coccidiosis, and enhance the onset of puberty in growing heifers. Research from Texas A&M in the 1970's indicated that heifers receiving an ionophore reached puberty about 2 weeks earlier than counterparts that did not receive an ionophore. Inclusion of the ionophore in the growing program should cause a few more heifers to be cycling early in the breeding season.


The protein supplement will allow microbial digestion of the average quality late summer forage which in turn provides the energy needed to support the desired amount of gain. If forage quantity is very limited, the protein supplement alone will not produce adequate gains. In this scenario, a rancher first needs to decide if keeping more replacement heifers is really in his or her best interest.


Light-weight or young, weaned heifers that need an added boost while still on late summer pasture may benefit more from the Oklahoma Super Gold supplementation program. "Super Gold" consists of feeding 3 pounds per head per day of a 25% crude protein pellet. Once again, an ionophore is included at the proper dosage and will be beneficial to these young growing heifers. Plan ahead for late summer supplementation of fall-born replacement heifers. Click for more information about the Oklahoma Gold and Oklahoma Supergold supplementation programs.



   

 

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