Effects of feeding endophyte-infected tall fescue seeds to stocker Angus steers on retail quality attributes of beef strip steaks.

Autor: Holtcamp AJ; Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, United States., Sukumaran AT; Department of Poultry Science, Mississippi State University, Mississippi State, MS, United States., Schnedler AE; Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, United States., McClenton BJ; Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, United States., Kunze E; Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, United States., Calkins CR; Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, United States., Karisch BB; Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, United States., Burnett DD; Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, United States., Dinh TTN; Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, United States. Electronic address: thu.dinh@msstate.edu.
Jazyk: angličtina
Zdroj: Meat science [Meat Sci] 2019 Mar; Vol. 149, pp. 31-39. Date of Electronic Publication: 2018 Nov 08.
DOI: 10.1016/j.meatsci.2018.11.007
Abstrakt: The objective of this study was to determine the effects of feeding endophyte-infected tall fescue seeds to Angus steers during the stocker phase on the quality attributes of beef strip steaks during retail display. Endophyte-infected tall fescue seeds had no effect on steak surface lean color, myoglobin forms, proximate composition, thiobarbituric acid reactive substances, aerobic plate count, pH, activity of superoxide dismutase and metmyoglobin reductase, shear force, and sensory attributes (P ≥ 0.087). However, lightness, redness, oxymyoglobin percentage, and MRA decreased from 45.01, 32.60, 67.61%, and 9.54 μM/min/g, respectively, on d 0 to 40.11, 21.83, 48.95%, and 2.30 μM/min/g, respectively, on d 7 (P ≤ 0.001). Thiobarbituric acid reactive substances were increased by 30% by d 5 (P = 0.015) and APC was increased by 0.5 log CFU/g by d 7 (P ≤ 0.012).
(Published by Elsevier Ltd.)
Databáze: MEDLINE
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