2026-09-21T04:42:01Zhttps://api.mountainscholar.org/server/oai/request

oai:mountainscholar.org:10217/2427062026-01-21T15:23:59Zcom_10217_100532com_10217_100000com_10217_100318com_10217_100303col_10217_182111col_10217_100325

Kilian, Levi, author Enns, Richard Mark, advisor Speidel, Scott, advisor Ritten, John, committee member 2026-01-12T11:27:49Z 2025 Kilian_colostate_0053N_19369.pdf https://hdl.handle.net/10217/242706 https://doi.org/10.25675/3.025598 The objective of this study was to create an economic selection index for a beef on dairy crossbreeding system. In an effort to improve overall performance in the system, the index aims to increase profitability. Crossbreeding a beef bull with a dairy female aims to add value to the resulting calf entering the beef supply chain. Historically, dairy animals entering the beef supply chain have mostly been in the form of veal production as diary animals lack the growth and carcass performance characteristics of a beef animal. Data from previous literature as well as some current industry was used to derive a profit equation. The economic values used in the economic selection index were derived using the profit equation. The resulting economic selection index when compared to iGENDEC had a higher response to selection for efficiency traits largely due to the inclusion of average daily gain (ADG). The presented index also showed a positive response to selection for carcass weight (86.07 kg), ribeye area (9.78 sq. cm), and marbling (1.29). The economic index derived in this study can be used to improve the profitability of beef on diary production systems, due to these positive responses to selection. born digital masters theses English eng Colorado State University. Libraries 2020- Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. bovine selection index economic selection index beef on dairy Beef on dairy economic selection index Text Master of Science (M.S.) Masters Animal Sciences Colorado State University This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). open.access