Evaluation of Estru$ Alert®, Kamar®, and FiL® Tailpaint as aids for detection of estrus

K-REx Repository

Show simple item record

dc.contributor.author Johnson, Sandra K.
dc.date.accessioned 2010-08-02T20:48:54Z
dc.date.available 2010-08-02T20:48:54Z
dc.date.issued 2010-08-02T20:48:54Z
dc.identifier.uri http://hdl.handle.net/2097/4365
dc.description.abstract Three estrus-detection aids were evaluated in beef heifers after synchronization of estrus with a typical melengesterol acetate (MGA)/prostaglandin F2α (PGF) protocol. Devices were applied at the time of PGF administration. Application time was longest for Kamar® patches, intermediate for Estru$ Alert® patches and FiL® Tailpaint, and shortest for controls. The degree to which the detection aids were activated at first observed estrus was dependent on the time of day when first observed and the type of device. A greater proportion of Estru$ Alert® and FiL® Tailpaint devices were 75% to fully activated when first observation of estrus was in the morning, compared with first observations in the afternoon. Time of day did not influence degree of Kamar® patch activation. At breeding, more than 90% of Estru$ Alert® and Kamar® devices were fully activated, whereas more variation in degree of activation was present in heifers with FiL® Tailpaint. Use of detection aids did not increase estrous detection rate or AI pregnancy rates, compared with those of controls when visual observation was intensive. Use of detection aids still requires observation at least twice per day to time inseminations, because the degree of color change/activation is not consistently an indicator of time since onset of estrus. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen's Day, 2005 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 05-144-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 943 en_US
dc.subject Beef en_US
dc.subject Estru$ Alert® en_US
dc.subject Kamar® en_US
dc.subject FiL® Tailpaint en_US
dc.subject Estrus en_US
dc.title Evaluation of Estru$ Alert®, Kamar®, and FiL® Tailpaint as aids for detection of estrus en_US
dc.type Conference paper en_US
dc.date.published 2005 en_US
dc.citation.epage 96 en_US
dc.citation.spage 92 en_US
dc.description.conference Cattlemen's Day, 2005, Kansas State University, Manhattan, KS, 2005 en_US
dc.contributor.authoreid sandyj en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search K-REx

Advanced Search


My Account


Center for the

Advancement of Digital


118 Hale Library

Manhattan KS 66506

(785) 532-7444