R. Barker

Broiler carcass quality using head-only electrical stunning in a waterbath

J. Lines, S. Wotton, R. Barker, 2011, British poultry science.

Comparative Profitability of Purebred and Crossbred Holstein Herds in Venezuela

R. Barker, R. Blake, R. Milligan, 1990 .

Economic Returns from United States Artificial Insemination Sires in Holstein Herds in Colombia, Mexico, and Venezuela

R. Barker, R. Blake, R. Milligan, 1990 .

Environmental and Other Factors Influencing the Performance of New High Yielding Varieties of Wheat and Rice in Asia

R. Barker, M. Mangahas, 1970 .

Net Margins from Different Fractions of Holstein Genes in Venezuelan Herds Based on Performance Estimates by Producers and Advisors

R. Barker, R. Blake, R. Milligan, 1990 .

Comparative Economic Returns from Artificial Insemination and Natural Service in Straightbred and Crossbred Holstein Herds in Venezuela

R. Barker, R. Blake, R. Milligan, 1991 .