Effects of Syngenta Enogen Feed Corn containing an [alpha]-amylase trait on finishing cattle performance and carcass characteristics

Effects of Syngenta Enogen Feed Corn containing an [alpha]-amylase trait on finishing cattle performance and carcass characteristics

Two experiments evaluated the effects of feeding a new corn hybrid, containing an [alpha]-amylase enzyme trait, Syngenta Enogen Feed Corn (SYT-EFC), on feedlot performance and carcass characteristics at two locations. Experiment 1 utilized 300 calffed steers (298.5 [+ or -] 16.3 kg of BW) at the Uni...

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Bibliographic Details
Published in:Translational animal science Vol. 3; no. 1; p. 504
Main Authors: Jolly-Breithaupt, M.L, Harris, M.E, Nuttelman, B.L, Burken, D.B, MacDonald, J.C, Luebbe, M.K, Iragavarapu, T.K, Erickson, G.E
Format: Journal Article
Language:English
Published: Oxford University Press 01-01-2019
Subjects:
Amylases
Analysis
Beef cattle
Corn
Costs (Law)
Feedlots
Livestock industry
Pharmaceutical industry
United States
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Summary:Two experiments evaluated the effects of feeding a new corn hybrid, containing an [alpha]-amylase enzyme trait, Syngenta Enogen Feed Corn (SYT-EFC), on feedlot performance and carcass characteristics at two locations. Experiment 1 utilized 300 calffed steers (298.5 [+ or -] 16.3 kg of BW) at the University of Nebraska-Lincoln Eastern Nebraska Research and Extension Center Mead, NE. Treatments were designed as a 2 * 2 + 1-factorial arrangement with factors consisting of 1) corn type (SYT-EFC or conventional [CON]) and 2) byproduct type (with or without Sweet Bran [SB]), or a BLEND of STY-EFC and CON without SB. In Exp. 2, 240 crossbred, calf-fed steers (287.6 [+ or -] 15.4 kg of BW) were utilized at the University of Nebraska-Lincoln Panhandle Research and Extension Center near Scottsbluff, NE. Steers were fed SYT-EFC, CON, BLEND, or CON with a commercial [alpha]-amylase enzyme supplement (CON-E). In Exp. 1, there was an interaction for ADG (P = 0.05) and G:F (P = 0.02). Steers fed SYT-EFC with SB had greater ADG and G:F than CON; however, in diets without SB, SYT-EFC and CON were not different resulting in a 10.1% change in G:F when steers were fed SYT-EFC in SB compared with CON and only 1.6% change between SYT-EFC and CON without SB. Energy values, based on performance data, resulted in a 6.5% and 8.3% change in [NE.sub.m] and [NE.sub.g], respectively, for steers fed SYT-EFC and CON with SB and 1.6% change for both [NE.sub.m] and [NE.sub.g] for steers fed SYT-EFC and CON without SB. For the main effect of corn trait, steers fed SYT-EFC had greater marbling scores, fat depth, and calculated yield grade compared with CON (P [less than or equal to] 0.03). In diets without SB, there was no difference between SYT-EFC, CON, or BLEND for DMI, final BW, ADG, G:F, NEm, or NEg (P [greater than or equal to] 0.35). In Exp. 2, cattle fed SYT-EFC, BLEND, or CON-E had greater final BW, ADG, and G:F than cattle fed CON (P [less than or equal to] 0.03). On average, [NE.sub.m] and [NE.sub.g] were 4.9% and 7.0% greater, respectively, for steers fed amylase enzyme treatments compared with CON (P [less than or equal to] 0.01). Hot carcass weights were greater in steers fed [alpha]-amylase treatments compared with CON (P < 0.01). Feeding Syngenta Enogen Feed Corn, which contains an [alpha]-amylase enzyme trait, at both locations improved feed efficiency in finishing cattle diets containing WDGS or SB. Key words: [alpha]-amylase, beef cattle, corn trait, feedlot
ISSN:2573-2102
2573-2102
DOI:10.1093/tas/txy121