Biography:

In the past G.M. Rogers has collaborated on articles with E.D. McCabe. One of their most recent publications is The effect of growth-promoting implant status on the sale price of beef calves sold through a livestock video auction service from 2010 through 2013. Which was published in journal The Professional Animal Scientist.

More information about G.M. Rogers research including statistics on their citations can be found on their Copernicus Academic profile page.

G.M. Rogers's Articles: (2)

The effect of growth-promoting implant status on the sale price of beef calves sold through a livestock video auction service from 2010 through 2013

ABSTRACTData were collected to quantify the effect of implant status on the sale price of lots of beef calves marketed through a livestock video auction service from 2010 through 2013 and to calculate the percentages of implanted lots. Information describing factors that could potentially affect the sale price of lots of beef calves was obtained electronically from the auction service for 27,746 lots (2,749,406 total calves) selling in 92 video auctions. All lot characteristics that could be accurately quantified or categorized were used to develop a separate multiple-regression model for each study year using a backward selection procedure. Implant status had no effect on sale price in any of the 4 yr of the study (P = 0.53, 0.39, 0.64, and 0.12, respectively, for 2010 to 2013). The percentage of lots that were implanted in each year was 28.4, 30.3, 30.5, and 29.0 for the years 2010 to 2013, respectively, with a mean of 29.5%. The percentage of lots of beef calves that were implanted was relatively low in the West Coast, Rocky Mountain/North Central, and South Central regions of the United States ranging from 18.2 to 27.9%. However, 64.9% of the lots from the South East region were implanted. The results of this study indicated that implant status of beef calves marketed through a livestock video auction service had no effect on sale price. Approximately 30% of all lots were implanted in each year of the study with approximately 33 and 25% of the steer and heifer lots being implanted, respectively.

PRODUCTION AND MANAGEMENT: Original ResearchBreed composition affects the sale price of beef steer and heifer calves sold through video auctions from 2010 through 2016

ABSTRACTObjectiveThe objective was to quantify the effect of breed composition on sale price of steer and heifer calves sold through a single livestock video auction service from 2010 through 2016.Materials and MethodsData were available from steer (29,103 lots) and heifer (18,955 lots) calves sold in 164 unique video auctions through one livestock video auction service. A multiple regression model using a backward selection procedure was developed for each calf sex to quantify effects of independent factors on sale price. A value of P < 0.05 was used to maintain a factor in the final model. Lots of calves were categorized into 1 of 6 breed groups: English and English-crossed, English–Continental crossed, Black Angus-sired calves out of dams with no Brahman influence, Red Angus-sired calves out of dams with no Brahman influence, Charolais-sired calves out of dams with no Brahman influence, and Brahman influenced.Results and DiscussionBreed description of steer and heifer calf lots affected sale price (P < 0.0001). Among heifers, Red Angus-sired calves had the greatest (P < 0.05) sale price ($173.88/45.36 kg of BW) compared with heifers of other breed groups. Among steers, Charolais-sired calves ($179.09/45.36 kg of BW) were similar (P = 0.19) in value to Red Angus-sired calves ($177.86/45.36 kg of BW) and greater (P < 0.05) than Black Angus-sired calves ($177.23/45.36 kg of BW).Implications and ApplicationsSire breeds selected, buyer preferences, and marketing venues of both steer and heifer calves should be considered holistically by producers so maximal calf values are realized when sold.

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