scholarly journals Using ruminally protected and nonprotected active dried yeast as alternatives to antibiotics in finishing beef steers: growth performance, carcass traits, blood metabolites, and fecal Escherichia coli

2018 ◽  
Vol 96 (12) ◽  
pp. 5345-5345 ◽  
Author(s):  
Tao Ran ◽  
Yizhao Shen ◽  
Atef M Saleem ◽  
Ousama AlZahal ◽  
Karen A Beauchemin ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Growth Performance ◽  
Carcass Traits ◽  
Blood Metabolites ◽  
Beef Steers

scholarly journals 69 Effects of supplementing ruminally protected and non-protected active dried yeast on growth performance and carcass traits in finishing beef steers.

2018 ◽  
Vol 96 (suppl_3) ◽  
pp. 396-396
Author(s):  
T Ran ◽  
Y Shen ◽  
A Saleem ◽  
L Chen ◽  
O AlZahal ◽  
...  
Keyword(s):  
Growth Performance ◽  
Carcass Traits ◽  
Beef Steers

scholarly journals Interaction between supplemental zinc oxide and zilpaterol hydrochloride on growth performance, carcass traits, and blood metabolites in feedlot steers1

2017 ◽  
Vol 95 (12) ◽  
pp. 5573-5583 ◽  
Author(s):  
C. L. Van Bibber-Krueger ◽  
K. A. Miller ◽  
R. G. Amachawadi ◽  
H. M. Scott ◽  
J. M. Gonzalez ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Growth Performance ◽  
Carcass Traits ◽  
Blood Metabolites ◽  
Supplemental Zinc ◽  
Zilpaterol Hydrochloride

scholarly journals 189 Comparison of growth-promoting implant regimens from calfhood to finishing in beef steers: finishing phase

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 66-66
Author(s):  
Jase Ball ◽  
Ellen Herring ◽  
Elizabeth B Kegley ◽  
John T Richeson ◽  
Jason K Apple ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Quantitative Data ◽  
Qualitative Data ◽  
Body Condition Score ◽  
Carcass Traits ◽  
Beef Steers ◽  
Quality Grade ◽  
Condition Score ◽  
Growth Promoting

Abstract The objective of this study was to compare growth-promoting implant regimens and their effect on growth performance and carcass traits. Crossbred beef steers (n = 106; body weight = 96 ± 3.9 kg; age = 74 ± 2.0 d) were blocked by parity of dam (≤ 2 or > 2 parities), and stratified by birth weight, calf age, calf sire, cow body weight and body condition score then were assigned randomly to 1 of 4 treatments: 1) administered Ralgro at branding (D 0), Ralgro at weaning (D 156), and Revalor XS at feedlot processing (D 325; RALG), 2) administered Component E-C at branding, Component TE-G at weaning, and Revalor XS at feedlot processing (COMP), 3) no growth-promoting implant at branding, administered Revalor-G at weaning, and Revalor XS at feedlot processing (N-REV), or 4) no growth-promoting implants administered during any phase of production (CTRL). Quantitative data were analyzed using PROC MIXED, whereas qualitative data were analyzed using the PROC GLIMMIX of SAS. At the end of the stocker phase (d 323), RALG (330 kg), COMP (324 kg), and N-REV (318 kg) were heavier (P = 0.02) compared to CTRL (297 kg). Calves implanted at branding, weaning, and feedlot entry (RALG and COMP) were ≥ 87 kg heavier than CTRL and 17 kg heavier compared to calves implanted only at weaning and feedlot entry (N-REV). Overall ADG during the feedlot phase were greater (P < 0.01) for RALG (2.17), COMP (2.17), and N-REV (2.09) compared to CTRL (1.76 kg). Hot carcass weights were greater (P < 0.01) in implanted steers compared to CTRL; however, quality grade was not affected (P = 0.79) by growth-promoting implant regimen. Implanting steers at branding or weaning may not negatively affect feedlot growth performance or carcass traits.

The effects of monensin in diets fed to finishing beef steers and heifers on growth performance and fecal shedding of Escherichia coli O157:H71

2017 ◽  
Vol 95 (8) ◽  
pp. 3738-3744 ◽  
Author(s):  
K. E. Hales ◽  
J. E. Wells ◽  
E. D. Berry ◽  
N. Kalchayanand ◽  
J. L. Bono ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Growth Performance ◽  
Escherichia Coli O157 ◽  
Beef Steers ◽  
Fecal Shedding
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