Rhizobium fredii is a fast-growing rhizobium isolated from the primitive Chinese soybean cultivar Peking and from the wild soybean Glycine soja. This rhizobium harbors nif genes on 150- to 200-megadalton plasmids. By passage on acridine orange plates, we obtained a mutant of R. fredii USDA 206 cured of the 197-megadalton plasmid (USDA 206C) which carries both nif and nod genes. This strain, how...

The AVMA will likely comment on the proposed amendment, which is on the February meeting agenda for the Council on Veterinary Service. The Association's recently revised policy on acclimation certificates is available at www.avma.org/issues/policy. More on the certificates and the AVMA policy is online at www.avma.org/onlnews/javma/jan08/080115f.asp. Page 1 of 2 USDA proposes end to acclimation...

The housing environment has become a critical issue for consumers of eggs and egg products. Therefore, it is imperative to understand how various environments can affect the modern laying hen. In this study, alongside 40th NC layer performance test, four different were chosen based on industry prevalence, which include conventional cages, barren, enrichable colony enriched cage-free environment...

The U.S. Department of Agriculture (USDA) requires beef abattoir operators to periodically analyze beef carcass sponge samples for levels of Escherichia coli. Additional beef carcass sponge sampling is commonly used by processors to evaluate the efficacy of beef abattoir antimicrobial intervention systems. The USDA sample preparation procedure requires that beef carcass sponge samples be mechan...

Two studies using commercially fed cattle were conducted to determine the relationship of the USDA bone ossification-based maturity system to one based on the number of permanent incisors present at slaughter. These studies showed that 91.5 to 100% of cattle with zero permanent incisors (< 23.8 mo of age), 89.1 to 97.5% of cattle with two permanent incisors (23.8 to 30.4 mo of age), 75 to 82.2%...

J.D. Hansen*, J.A. Johnson and D.A. Winter USDA-ARS Yakima Agricultural Research Laboratory, 5230 Konnowac Pass Road, Wapato, WA 98951, USA; USDA-ARS San Joaquin Valley Agricultural Sciences Center, 9611 S. Riverbend Ave., Parlier, CA 93648, USA; Director of Regulatory Affairs, Quality and Clinical Education, University of California at San Diego Medical Center, 200 West Arbor Drive, San Diego,...

ALEXANDRA D. SYPHARD*{, SUSAN I. STEWART{, JASON MCKEEFRY{, ROGER B. HAMMER§, JEREMY S. FRIED", SHERRY HOLCOMB{ and VOLKER C. RADELOFF{ {Department of Forest Ecology and Management, University of Wisconsin, Madison, WI, 53706, USA {USDA Forest Service, Northern Research Station, Evanston, IL, 60201, USA §Department of Sociology, Oregon State University, Corvallis, OR, 97331, USA "USDA Forest Se...