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Jan Busboom Animal Scientist and Extension Meats Specialist Ph.D., Michigan State University Phone: (509) 335-2880 E-mail: busboom@wsu.edu

MEAT SCIENCE. Our overall goal is to identify economically, environmentally and socially sustainable pre- and post-harvest production systems that optimize the level of biologically active compounds (such as CLA and omega 3 fatty acids) in meat without detrimentally affecting storage stability and palatability. Variables we have studied or plan to evaluate are:

• Genetic impacts and their interaction with pre- and post harvest production practices
• Pasture finishing systems (for example forage type, seasonality, plane of nutrition during backgrounding and finishing)
• Post mortem treatments such as aging conditions and length
• Alternative feeds such as by-products of the biofuel and human food industries

Specific Research Areas:

• Effects of various feeding/management systems such as potato by-products and high linoleic acid supplements on nutrients and palatability of Wagyu and American beef.
• Pasture research trials to determine:
  
  
  • Effects of low, moderate, or high plane of nutrition during backgrounding period and
  • Effects of season (spring, summer, fall, winter) of harvest on growth performance, quality, palatability and fatty acid composition of entirely open pasture-fed cattle from birth to harvest.
• Identify post-harvest practices that combined with acceptable pre-harvest practices result in consistently acceptable flavor and tenderness of pasture-fed beef.

Selected Publications:

1. O’Fallon, J. V., J. R. Busboom, M. L. Nelson, and C. T. Gaskins. 2007. A direct method of fatty acid methyl ester (FAME) synthesis: Application to wet meat tissues, oils and feedstuffs. J. Anim. Sci. (In Press).
2. Xiao, Q., X. L. Wu, J. J. Michal, J. J. Reeves, J. R. Busboom, G. H. Thorgaard, & Z. Jiang.  2006. A novel nuclear-encoded mitochondrial poly(A) polymerase PAPD1 is a potential candidate gene for the extreme obesity related phenotypes in mammals. Int. J. Biol. Sci. 2, 171-178.
3. Xiao, Q., T. A. Wibowo, X. L. Wu, J. J. Michal, J. J. Reeves, J. R. Busboom, G. H. Thorgaard, & Z. Jiang. 2006. A simplified QTL mapping approach for screening and mapping of novel AFLP markers associated with beef marbling. J. Biotech. 127, 177-187.
4. Purchas, R. W., J. R. Busboom, & B. Wilkinson. 2006. Changes in the forms of iron and in concentrations of taurine, carnosine, coenzyme Q10, and creatine in beef longissimus muscle with cooking and simulated stomach and duodenal digestion. Meat Sci. 74(3), 443-449. http://www.sciencedirect.com/meatsci.
5. Purchas, R. W., and J. R. Busboom. 2005 The effect of production system and age on levels of iron, taurine, carnosine, coenzyme Q10, and creatine in beef muscles and liver. Meat Sci. 70(4):589-596.
6. Purchas, R. W., T. W. Knight, and J. R. Busboom. 2005. The effect of production system and age on concentrations of fatty acids in intramuscular fat of the longissimus and triceps brachii muscles of Angus-cross heifers. Meat Science. 70(4):597-603.
7. Marks, D. J., M. L. Nelson, J. R. Busboom, J. D. Cronrath, and L. Falen. 2004. Effects of supplemental fat on growth performance and quality of beef from steers fed barley-potato product finishing diets: II. Fatty acid composition of muscle and subcutaneous fat. J. Anim. Sci. 82:3611-3616.
8. Kuber, P. S., J. R. Busboom, E. Huff-Lonergan, et al. 2004. Effects of biological type and dietary fat treatment on factors associated with tenderness:  I. Measurements on beef longissimus muscle. J. Anim Sci. 82:770-778.
9. Kuber, P. S., J. R. Busboom, et al. 2004. Effects of biological type and dietary fat treatment on factors associated with tenderness: II. Measurements on beef semitendinosus muscle. J. Anim Sci. 82:779-784.
10. Mir, P., Z. Mir, P. Kuber, C. Gaskins, E. Martin, M. Dodson, J. Elias Calles, K. Johnson, J. Busboom, et al. 2002.  Growth, carcass characteristics, muscle CLA content, and response to intravenous glucose challenge in high percentage Wagyu, Wagyu × Limousin, and Limousin steers fed sunflower oil-containing diets. J. Anim. Sci. 80:2996-3004.
11. Kuber, P., S. Duckett, J. Busboom, G. Snowder, et al. 2002. Measuring effects of phenotype and mechanical restraint on proteolytic degradation and rigor shortening in callipyge lamb longissimus muscle during extended aging. Meat Sci. 63:325-331.
12. Elias-Calles, A., C. T. Gaskins, J. R. Busboom, S. K. Duckett, J. D. Cronrath, and J. J. Reeves. 2000.  Sire variation in fatty acid composition of crossbred Wagyu steers and heifers. Meat Sci. 56:23-29.
13. Busboom, J. R., M. L. Nelson, L. E. Jeremiah, S. K. Duckett, J. D. Cronrath, L. Falen, and P. Kuber. 2000. Effects of graded levels of potato by-products in barley- and corn-based beef feedlot diets: II. Palatability. J. Anim. Sci. 78:1837-1844.
14. Busboom, J., T. Wahl and G. Snowder. 1999. Economics of callipyge lamb production. J. Anim. Sci. 77:(Suppl. 2):243-248.
15. Xie, Y. R., J. Busboom, D. Cornforth, H. Shenton, C. Gaskins, K. Johnson, J. Reeves, R. Wright, and J. Cronrath. 1996. Effects of time on feed and post-mortem aging on palatability and lipid composition of crossbred Wagyu beef. Meat Sci. 43:157-166.
16. Busboom, J. R., L. E. Jeremiah, L. L. Gibson, K. A. Johnson, C. T. Gaskins, J. J. Reeves and R. W. Wright. 1993. Effects of biological source on cooking and palatability attributes of beef produced for the Japanese market. Meat Sci. 35:241-258.