Synchronizing estrus in replacement beef heifers using select synch, MGA, AND PGF2

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dc.contributor.author Lamb, G.C.
dc.contributor.author Cartmill, J.A.
dc.contributor.author Hensley, B.A.
dc.contributor.author El-Zarkouny, S.
dc.contributor.author Heldt, J.S.
dc.contributor.author Marple, T.J.
dc.contributor.author Stevenson, Jeffrey S.
dc.date 1999 en
dc.date.accessioned 2010-08-23T19:28:02Z
dc.date.available 2010-08-23T19:28:02Z
dc.date.issued 2010-08-23T19:28:02Z
dc.identifier.uri http://hdl.handle.net/2097/4707
dc.description.abstract The Select Synch protocol (GnRH at day - 7, PGF2 at day 0, AI at detected heat) was compared to protocols using either MGA + prostaglandin (Colorado system) or two injections of prostaglandin to synchronize estrus in replacement heifers at three locations. Percentage of heifers detected in heat before, during, or after the target breeding week was not different among treatments but varied in percentages among locations. Overall conception rates ranged from 64 to 69%. Pregnancy rates varied from 46 to 56% and tended to be greatest in the MGA + PGF2" treatment. Costs of these treatments ranged from $3.50 to $8 and were lowest for the MGA + PGF2 protocol. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1999 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 99-339-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 831 en_US
dc.subject Beef en_US
dc.subject Heifers en_US
dc.subject Estrus-synchronization en_US
dc.subject GnRH en_US
dc.subject PGF2 en_US
dc.subject AI en_US
dc.title Synchronizing estrus in replacement beef heifers using select synch, MGA, AND PGF2 en_US
dc.type Conference paper en_US
dc.date.published 1999 en_US
dc.citation.epage 70 en_US
dc.citation.spage 68 en_US
dc.description.conference Cattlemen's Day, 1999, Kansas State University, Manhattan, KS, March 5, 1999 en_US
dc.contributor.authoreid jstevens en_US

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