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Full-Text Articles in Animal Sciences
The Economic Effects Of Sorting Cattle By Weight And Time Of Year Into Different Production Systems1, D. R. Adams, T. J. Klopfenstein, G. E. Erickson, D. R. Mark, Matt K. Luebbe, W. A. Griffin
The Economic Effects Of Sorting Cattle By Weight And Time Of Year Into Different Production Systems1, D. R. Adams, T. J. Klopfenstein, G. E. Erickson, D. R. Mark, Matt K. Luebbe, W. A. Griffin
Department of Animal Science: Faculty Publications
A 2-yr study using 288 steers each year was conducted to determine the economic effects of sorting and feeding genetically similar cattle in different production systems. Steers were purchased at weaning in November and assigned randomly into sorted or unsorted groups. Unsorted steers were assigned randomly to 1 of 3 production systems: calf-fed steers (enter feedlot after weaning), summer yearling, or fall yearling; n = 48 steers per system yearly. For sorted steers, the heaviest third were calf fed and the remaining steers grazed cornstalks during winter. After winter grazing, the heaviest half of those steers were fed as summer …
Effects Of Sorting Steers By Body Weight Into Calf-Fed, Summer Yearling, And Fall Yearling Feeding Systems, D. R. Adams, T. J. Klopfenstein, G. E. Erickson, W. A. Griffin, Matt K. Luebbe, Matthew A. Greenquist, J. R. Benton
Effects Of Sorting Steers By Body Weight Into Calf-Fed, Summer Yearling, And Fall Yearling Feeding Systems, D. R. Adams, T. J. Klopfenstein, G. E. Erickson, W. A. Griffin, Matt K. Luebbe, Matthew A. Greenquist, J. R. Benton
Department of Animal Science: Faculty Publications
Two years of data (288 steers/yr) were used to determine if sorting cattle by BW into different production systems would decrease overweight carcasses (>431 kg) and hot carcass weight (HCW) variation. At receiving, steers were assigned randomly into sorted or unsorted groups (n = 144 steers/group). Within a group, steers were assigned to 1 of 3 feeding times: 1) calf-fed (entering the feedlot at receiving), 2) summer yearling (grazed during winter and entering the feedlot in May) and 3) fall yearling (grazed during winter and summer and entering the feedlot in September). Unsorted steers were assigned randomly to a …
Effect Of Sorting And Optaflexx Supplementation On Feedlot Performance And Profitability Of Long Yearling Steers, W. A. Griffin, T. J. Klopfenstein, G. E. Erickson, D. M. Feuz, K. J. Vander Pol, Matthew A. Greenquist
Effect Of Sorting And Optaflexx Supplementation On Feedlot Performance And Profitability Of Long Yearling Steers, W. A. Griffin, T. J. Klopfenstein, G. E. Erickson, D. M. Feuz, K. J. Vander Pol, Matthew A. Greenquist
Department of Animal Science: Faculty Publications
A 2-yr study was conducted using 200 long yearling steers/yr (436 ± 30 kg) to determine the effect on performance and economics of sorting by BW at feedlot entry and feeding 200 mg/steer of Optaflexx (OPT) daily for the last 28 d. At feedlot entry, steers were allotted into 1 of 4 treatments in a 2 × 2 factorial arrangement: sorted or unsorted with or without OPT. Sorted steers were placed into 1 of 3 groups—1) heavy steers (32%; 468 kg), 2) medium steers (44%; 432 kg), or 3) light steers (24%; 399 kg)—and were fed for 97, 118, or …
Effect Of Intensive Winter Management, Partial Season Grazing, And Sorting On Performance And Economics Of A Long Yearling Steer Production System, J. D. Folmer, W. A. Griffin, C. N. Macken, M. P. Blackford, T. J. Klopfenstein, G. E. Erickson
Effect Of Intensive Winter Management, Partial Season Grazing, And Sorting On Performance And Economics Of A Long Yearling Steer Production System, J. D. Folmer, W. A. Griffin, C. N. Macken, M. P. Blackford, T. J. Klopfenstein, G. E. Erickson
Department of Animal Science: Faculty Publications
A 2-yr study (200 steers/yr) was conducted to evaluate effects of grazing management and sorting by BW at feedlot entry on performance and economics of yearling steers. At receiving, steers (247 ± 21 kg) were randomly allotted to 1 of 2 treatments: low (0.75 kg/d, NORM) or high (0.90 kg/d, INT) gains during backgrounding. After wintering, NORM and INT grazed native range for 128 and 78 d, respectively. At feedlot entry, steers were randomly allotted to 1 of 2 treatments: sorted by BW (25% heavy, 50% medium, or 25% light; SORT) or unsorted (UNSORT). Heavy, medium, light, and UNSORT steers …
Sorting Strategies For Long Yearling Cattle Grown In An Extensive Forage Utilization Beef Production System, James C. Macdonald, T. J. Klopfenstein, G. E. Erickson, C. N. Macken, J. D. Folmer, M. P. Blackford
Sorting Strategies For Long Yearling Cattle Grown In An Extensive Forage Utilization Beef Production System, James C. Macdonald, T. J. Klopfenstein, G. E. Erickson, C. N. Macken, J. D. Folmer, M. P. Blackford
Department of Animal Science: Faculty Publications
One hundred sixty English-cross steers (244 kg, SD=23 kg) were used in each yr of a 2-yr study to determine effects of sorting on performance, carcass characteristics, variability, and profitability in a long yearling system utilizing ranch-source calves. Steers were back grounded during winter then grazed smooth brome-grass pastures followed by warm season native range prior to entering the feedlot in the fall. Steers were stratified by BW and allotted to 1 of 4 treatments: 1) 40 head sorted by pre-grazing BW where heavy steers entered the feedlot in July (PST), 2) 40 head sorted by BW entering the feedlot …