Effects of preshipping management on measures of stress and performance of beef steers during feedlot receiving

Journal of Animal Science
J D ArthingtonS W Coleman

Abstract

Over 2 yr, a total of 96 steers (approximately 7 mo of age) were allocated to 1 of 4 weaning management strategies: 1) control: weaned on the day of shipping; 2) creep-fed: allowed free-choice access to concentrate before weaning and shipping; 3) preweaned: weaned and provided supplemental concentrate on pasture before shipping; and 4) early-weaned: weaned at 70 to 90 d of age and kept on pasture. On the day of shipping, steers were loaded together onto a commercial livestock trailer and transported 1,600 km over 24 h before being received into the feedlot. At the feedlot, steers were penned by treatment (4 pens/treatment) and provided access to free-choice hay and concentrate in separate feeding spaces. Samples of blood were collected on d 0, 1, 4, 8, 15, 22, and 29 relative to shipping. Steer performance was assessed over the receiving period, including DMI of hay and concentrate, ADG, and G:F. Predetermined contrasts included control vs. early-weaned, creep-fed vs. preweaned, and control vs. creep-fed and preweaned. Overall ADG was greater (P < 0.01) for early-weaned vs. control steers (1.39 vs. 0.88 kg). In wk 1, early-weaned steers consumed more concentrate and less hay compared with control steers (P < 0.03), and preweane...Continue Reading

References

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Citations

Apr 12, 2013·Journal of Animal Science and Biotechnology·Bahram ChacherJianxin Liu
Jul 6, 2014·Research in Veterinary Science·Aran O'LoughlinBernadette Earley
Apr 11, 2012·Journal of Animal Physiology and Animal Nutrition·R F Cooke, J D Arthington
Apr 24, 2012·Journal of Proteomics·F CecilianiH Sauerwein
Dec 27, 2017·Animal : an International Journal of Animal Bioscience·L G T SilvaD W Bohnert
Jan 17, 2012·Journal of Animal Science·T M WarnockJ D Arthington
Jun 1, 2014·Journal of Animal Science·D G RileyJ O Sanders
Jun 27, 2015·Journal of Animal Science·M HersomJ Arthington
May 29, 2015·Journal of Animal Science·A L Adams-ProgarC L Terrill
Sep 28, 2010·Journal of Animal Science·R F Cooke, D W Bohnert
Sep 1, 2009·Journal of Animal Science·J A CarrollC C Chase
Feb 15, 2011·Journal of Animal Science·D G RileyT A Olson
Jul 21, 2017·Journal of Animal Science·B K WilsonC R Krehbiel
Nov 19, 2018·Translational Animal Science·Philipe MorielJose L M Vasconcelos
Feb 9, 2017·Journal of Animal Science·R F CookeJ L M Vasconcelos

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