Diagnosis of freemartinism in heifers born co-twin to a bull

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dc.contributor.author Larson, B.L.
dc.contributor.author Kiracofe, G.H.
dc.date.accessioned 2010-11-02T21:34:58Z
dc.date.available 2010-11-02T21:34:58Z
dc.date.issued 2010-11-02
dc.identifier.uri http://hdl.handle.net/2097/6443
dc.description.abstract The wide variance in anatomical characteristics among heifers born co-twin to a bull make diagnosis of freemartinism by measurements of vaginal length or the distance between the anus and vulva unreliable. Change in serum luteinizing hormone (LH) in response to injection of estrogen or gonadotropin releasing hormone (GnRH) is different in freemartins compared to normal heifers but is also an unreliable predictor of freemartinism. Presently, the most conclusive way to establish freemartinism in a heifer born co-twin to a bull is to measure the percentage of XX and XY chromosomes in cells from whole blood, which is a specialized and expensive procedure. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1990 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 90-361-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 592 en_US
dc.subject Beef en_US
dc.subject Freemartin en_US
dc.subject Twins en_US
dc.subject XY chromosome en_US
dc.subject Chimer en_US
dc.title Diagnosis of freemartinism in heifers born co-twin to a bull en_US
dc.type Conference paper en_US
dc.date.published 1990 en_US
dc.citation.epage 60 en_US
dc.citation.spage 59 en_US
dc.description.conference Cattlemen's Day, 1990, Kansas State University, Manhattan, KS, February, 1990 en_US


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