| quality assured measurements of animal building emissions: odor concentrations. | standard protocols for sampling and measuring odor emissions from livestock buildings are needed to guide scientists, consultants, regulators, and policy-makers. a federally funded, multistate project has conducted field studies in six states to measure emissions of odor, coarse particulate matter (pm(10)), total suspended particulates, hydrogen sulfide, ammonia, and carbon dioxide from swine and poultry production buildings. the focus of this paper is on the intermittent measurement of odor con ... | 2008 | 18581810 |
| identification of a novel ovine prp polymorphism and scrapie-resistant genotypes for st. croix white and a related composite breed. | susceptibility to scrapie is primarily controlled by polymorphisms in the ovine prion protein gene (prnp). here, we report a novel ovine exon three prnp polymorphism (snp g346c; p116), its association with the ovine arq allele (p116a136r154q171), and two new genotypes (parq/arr; parq/arq) for the st. croix white (scw) breed and a related composite (cmp) breed developed for meat production. the (p116) polymorphism occurs between the n-terminal cleavage site and the hydrophobic region of the ovine ... | 2003 | 14970684 |