Heifer synchronization using 7-11 synch or 7-11 synch + CIDR

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dc.contributor.author Eborn, D.R.
dc.contributor.author Spiker, C.R.
dc.contributor.author Sullivan, R.R.
dc.contributor.author Grieger, David M.
dc.date.accessioned 2009-12-07T15:32:30Z
dc.date.available 2009-12-07T15:32:30Z
dc.date.issued 2009-12-07T15:32:30Z
dc.identifier.uri http://hdl.handle.net/2097/2235
dc.description.abstract Two aims of heifer estrus synchronization protocols are to induce prepubertal heifers to start cycling by the beginning of the breeding season and to shorten time spent in estrous detection. Use of progestins such as melengestrol acetate (MGA) and intravaginal progesterone-releasing devices (CIDR) can induce prepubertal heifers to begin cycling as well as synchronize estrus in cycling heifers. In past years, a timed artificial insemination protocol (7-11 COSynch) has been tested with varying results. Pregnancy rates using 7-11 COSynch have typically ranged from 40 to 60%. The objective of the current trial was to determine the effect of a similar heat-detection protocol (7-11 Synch) with or without a CIDR. We compared heat response, interval to estrus, and conception rates in beef heifers. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen's Day, 2009 en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1010 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution ; no. 09-168-S en_US
dc.subject Beef en_US
dc.subject Cattle en_US
dc.subject CIDR en_US
dc.subject MGA en_US
dc.title Heifer synchronization using 7-11 synch or 7-11 synch + CIDR en_US
dc.type Conference paper en_US
dc.date.published 2009 en_US
dc.citation.epage 32 en_US
dc.citation.spage 31 en_US
dc.description.conference Cattlemen's Day, Kansas State University, Manahttan, KS, March 6, 2009 en_US
dc.contributor.authoreid dgrieger en_US


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