J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by O'Sullivan, A.
Right arrow Articles by Kerry, J. P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by O'Sullivan, A.
Right arrow Articles by Kerry, J. P.

Journal of Animal Science, Vol 80, Issue 6 1556-1563, Copyright © 2002 by American Society of Animal Science

JOURNAL ARTICLE

Grass silage versus maize silage effects on retail packaged beef quality

A. O'Sullivan, K. O'Sullivan, K. Galvin, A. P. Moloney, D. J. Troy and J. P. Kerry
Department of Food Science, Food Technology and Nutrition, National University of Ireland, Cork.

The effects of three preslaughter diets on heifer beef quality were investigated. Heifers (n = 45) were divided into three groups and fed for ad libitum consumption either maize silage, grass silage, or a 50:50 mixture of maize silage and grass silage. Meat quality was determined by measuring color, lipid oxidation, alpha-tocopherol levels, and fatty acid composition. Beef from the maize silage group had poorest color stability (P < 0.05), whereas beef from the grass silage diet had best (P < 0.05) color stability. The visual panel least preferred the maize silage group after 2 or more days of display, and lipid oxidation was significantly (P < 0.001) higher in this group compared to the 50:50 maize:grass silage and grass silage groups. There was a significant (P < 0.001) difference in the alpha-tocopherol levels detected in the meat from the three dietary groups. Alpha-tocopherol levels increased in the order: maize silage < 50:50 maize:grass silage < grass silage, at levels of 2.08, 2.95, and 3.84 microg/g meat, respectively. Fatty acid analysis indicated 18:3 was significantly (P < 0.001) lower in the maize silage-fed group than in the maize:grass silage and grass silage groups. However, 18:3 was significantly (P < 0.001) higher in the grass silage group than in the other two groups. There were no significant differences in all other fatty acids among the three dietary groups. It was concluded that beef from grass silage-fed animals had better overall quality in terms of color, lipid oxidation, and alpha-tocopherol levels than beef from maize silage fed animals.


This article has been cited by other articles:


Home page
 J ANIM SCIHome page
L. Faucitano, P. Y. Chouinard, J. Fortin, I. B. Mandell, C. Lafreniere, C. L. Girard, and R. Berthiaume
Comparison of alternative beef production systems based on forage finishing or grain-forage diets with or without growth promotants: 2. Meat quality, fatty acid composition, and overall palatability
J Anim Sci, July 1, 2008; 86(7): 1678 - 1689.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
A. O'Sullivan, K. O'Sullivan, K. Galvin, A. P. Moloney, D. J. Troy, and J. P. Kerry
Influence of concentrate composition and forage type on retail packaged beef quality
J Anim Sci, August 1, 2004; 82(8): 2384 - 2391.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2002 by the American Society of Animal Science.