1 Immunobiotics Research Group, Tucuman, Argentina, 2 Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman, Argentina, 3 Food and Feed Immunology Group, Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan, 4 Livestock Immunology Unit, International Education and Research Center for Food and ...

Alkaloids constitute the largest class of plant secondary compounds, occurring in 20 to 30% of perennial herbaceous species in North America. Alkaloid-containing plants are of interest, first because alkaloids often have pronounced physiological reactions when ingested by livestock, and second because alkaloids have distinctive taste characteristics. Thus, alkaloids may kill, injure, or reduce ...

Linkageofmicrobial ecology to phenotype: correlationof rumen microbial ecology to cattle’s feed e⁄ciency Le Luo Guan, Joshua D. Nkrumah, John A. Basarab & Stephen S. Moore Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada Igenity Livestock Production Business Unit, Merial Ltd, Edmonton, AB, Canada; and Alberta Agriculture, Food and Rural Devel...

Microorganisms which contaminate animal feeds pose a threat not only to animals but also indirectly to humans through their consumption of products of animal origin. The aim of the present study was to assess microbiological cleanness of selected resources and ready-made feed mixtures before and after thermal processing. The results indicated that the most bacteriologically contaminated resourc...

To view the entire series, visit . Odors associated with livestock manure are foremost among complaints made by indi­ viduals who live in the vicinity of concen­ trated animal feeding operations (CAFOs). While some view these odors as nothing more than a nuisance, others are concerned that livestock odors could potentially affect their health. The purpose of ...

This article reviews the current state-of-theart for algae use in aquaculture, plus recent developments in algal biomass as a microor bulk ingredient in formulated animal feeds (terrestrial livestock and aquaculture species). Microalgae provide an important direct or indirect feed source for early developmental stages of many farmed finfish, shellfish and invertebrate species. Hatcheries typica...

Concentrated animal feeding operations typically store livestock waste in clay-lined ponds. Although these ponds are regulated to include a liner with a small hydraulic conductivity to limit leaching, previous studies have traced surface and groundwater contamination from such regulated animal waste ponds. This research examined the transport of 17β-estradiol (E2) and its primary metabolite, es...

While Frye and Jackson do a good job describing the common mechanisms of resistance found in food animals in the U.S., they err in stating that in the U.S. extended spectrum β-lactamases (ESBLs) “thus far have only been found in human and not food animal isolates.” In fact, Wittum et al., in 2010 first reported the collection of Escherichia coli expressing CTX-M-type ESBLs in fecal isolates fro...

A large number of strains (1,783) belonging to 15 Salmonella serovars isolated, in Canada, from the three major links of the human food chain were screened for multiple antibiotic resistance and the presence of R-plasmids. Multiresistant strains occurred among animal feed, livestock, and human isolates at frequencies of 4, 22, and 14%, respectively. Conjugation analysis revealed that 58% of the...