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...

Abstract United States certified organic and conventional dairy farms are compared on the basis of economic, financial, technological measures using data from 2016 USDA Agricultural Resource Management Survey. A stochastic production frontier model an input distance function framework is estimated for U.S. to examine technical efficiency returns scale (RTS) both systems by multiple size categor...

Drought is the dominant process of crop loss nationally and within Nebraska. Nearly twothirds of the 18.6 million harvested acres are covered by crop insurance (USDA/RMA, 2003; USDA/NASS, 2003). For the most part, Nebraska’s crop losses range from $50 to 75 million in non-drought years, but the losses approach nearly $200 million in drought years, such as 2000. The past growing season (2002) cr...

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...