Citation
Cattle and forage field day. 1978

Material Information

Title:
Cattle and forage field day. 1978
Series Title:
Cattle and forage field day.
Alternate title:
Research report - Range Cattle Research and Education Center (Ona) ; RC-2004-3
Creator:
Range Cattle Research and Education Center, University of Florida
Place of Publication:
Ona, Fla.
Publisher:
Range Cattle Research and Education Center, University of Florida
Publication Date:

Subjects

Genre:
serial ( sobekcm )

Record Information

Source Institution:
University of Florida
Holding Location:
University of Florida
Rights Management:
Copyright Board of Trustees of the University of Florida
Resource Identifier:
143662748 ( oclc )

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Full Text

Beef Cattle and Forage
Field Day Program


October 6,1978

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af orti seleauum for sheep, heef and dairy cattle. Approval for the usc of crai selentuni with ewes and nursing lambs nas given on Narch ?], 1978 Approval for its tise with beef and dairy cattle has not as yet been granted.

Sumniary

The early interest in se]enium was related primarily to its toxicity, but since 1957 the element has been recognized as a dietary essential The dietary requirement for selenium by ruminants is considered to be about 1 ppm Deficiencies of selennni' in catt]e and sheep have been confitraed under nacucal grazing conditions in many countries of the world Overt signs of inadequacy sach as whitt muscle disease (nutritional muscular dystrophy) occur primarily in young calves or lambs born to selenium deficient dams. A greater incidence of retained placentas in cattle has been observed when animals were receiving diets low in selenium Subelinical defielencies of selenium are not easily determined, and thus an inadequacy of the element alay be limitang maximual animal performance under certsin circumstances

ne Food and Drug Mministration gave approval in 1974 for the oral administration of supple-liental selenium as cirber sodium selenite or sadium selenate to certain classes of anne and poultry Similar approval was given for owes and nursing lambs in March of 1978, but no approval has been given for beef and dairy cows
















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HISTORIC NOTE


The publications in this collection do not reflect current scientific knowledge or recommendations. These texts represent the historic publishing record of the Institute for Food and Agricultural Sciences and should be used only to trace the historic work of the Institute and its staff. Current IFAS research may be found on the Electronic Data Information Source (EDIS)
site maintained by the Florida Cooperative Extension Service.





Copyright 2005, Board of Trustees, University of Florida




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