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Yearling Feed Cattle

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Yearling fed cattle spent 116 days on feed for both the CON and NOT groups. Cattle were weighed on day zero and on day 116 to calculate the information. In the CON group, cattle had an ADG of 3.76 lb/day. This was a higher ADG than the NOT group, who averaged a substantially lower rate of gain at 2.9 lb/day. In the end, this made a difference of 103 pounds in the finished body weight of cattle since the CON group finished at an average weight of 1260 pounds and the NOT group finished at a weight of 1157 pounds. To get the same body weight in the NOT group as the CON group, one would have to feed an extra 35.5 days. This research shows the importance of GETs in the beef industry. By looking at the increased productivity of the CON cattle over…show more content…
Hess, T. Hubbell, D. Hufstedler, G. D. Fieser, and B. Caldwel set out on their research to analyze the additive effects of growth promoting technologies on performance of grazing steers and economics of the wheat pasture enterprise. The objective of this research was designed to evaluate the effect of monensin (Elanco Animal Health, Greenfield, IN) supplementation via mineral or pressed protein block with or without a growth promoting implant on the performance of steers grazing wheat pasture. Through this study they were able to look at the effects of these two mineral supplements, with or without steroid implants, on ADG. To do this, they set up three treatment groups: one on a non medicated mineral, which was the control (CNTRL); another on a medicated mineral of 1.78 g monensin/kg, which was group RMIN; and the third group on a protein packed mineral with 0.33 g monensin/kg, which was group RBLCK. Each of these groups were divided in half and implants were put in one-half. There was a total of 360 animals used in the experiment over the course of two years, 120 each spring, and 60 each fall. These were then split equally into the three groups, CNTRL, RMIN, and RBLCK. These groups were each split again with implants put in half of the animals in each group. These groups were then left on pasture for the duration of the test with free access to the mineral supplement of their group. Weights were collected before and after the designated time spent on pasture. From this, they could calculate the ADG of the different groups. They then compared the difference in ADG between CNTRL, RMIN, and RBLCK as seen in table
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