Factors affecting conception after synchronization with Lutalyse® and timed insemination

Kansas Agricultural Experiment Station Research Reports, Dec 1981

With heifers given two injections of Lutalyse 11 days apart, and inseminated 80 hours after the second injection, only 20% in heat before 48 hours conceived compared with 65% that were in heat 48 to 80 hours after injection. Those showing heat early may have been inseminated too late. Heifers receiving their second injection on day 7. 8, or 9 of the cycle came into heat earlier than those injected on days 10 through 15.

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Factors affecting conception after synchronization with Lutalyse® and timed insemination

Factors affecting conception after synchronization with Lutalyse® and timed insemination M. King G.H. Kiracofe R.M. McKee Follow this and additional works at: http://newprairiepress.org/kaesrr Part of the Other Animal Sciences Commons Recommended Citation King, M.; Kiracofe, G.H.; and McKee, R.M. (1981) "Factors affecting conception after synchronization with Lutalyse® and timed insemination," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 1. https://doi.org/10.4148/2378-5977.2581 - Thi s report is brought to you for free and open access by New Prairie Press. It has been accepted for inclusion in Kansas Agricultural Experiment Station Research Reports by an authorized administrator of New Prairie Press. Copyright 1981 Kansas State University Agricultural Experiment Station and Cooperative Extension Service. Contents of this publication may be freely reproduced for educational purposes. All other rights reserved. Brand names appearing in this publication are for product identification purposes only. K-State Research and Extension is an equal opportunity provider and employer. Factors affecting conception after synchronization with Lutalyse® and timed insemination Abstract With heifers given two injections of Lutalyse 11 days apart, and inseminated 80 hours after the second injection, only 20% in heat before 48 hours conceived compared with 65% that were in heat 48 to 80 hours after injection. Thos e showing heat early may have been inseminated too late. Heifers receiving their second injection on day 7. 8, or 9 of the cycle came into heat earlier than those injected on days 10 through 15. Creative Commons License Thi s work is licensed under a Creative Commons Attribution 4.0 License. Thi s Research Report article is available in Kansas Agricultural Experiment Station Research Reports: http://newprairiepress.org/ kaesrr/vol0/iss1/1178


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M. King, G.H. Kiracofe, R.M. McKee. Factors affecting conception after synchronization with Lutalyse® and timed insemination, Kansas Agricultural Experiment Station Research Reports, 1981,