Randal S Stahl

Summary

Affiliation: Agricultural Research Service
Country: USA

Publications

  1. ncbi request reprint Improved method for quantifying the avicide 3-chloro-p-toluidine hydrochloride in bird tissues using a deuterated surrogate/GC/MS method
    Randal S Stahl
    National Wildlife Research Center, USDA APHIS, 4101 LaPorte Avenue, Fort Collins, Colorado 80521, USA
    J Agric Food Chem 50:732-8. 2002
  2. ncbi request reprint Characterizing 3-chloro-p-toluidine hydrochloride on rough-hulled rice and ethyl-cellulose-coated rice baits using high-performance liquid chromatography
    Randal S Stahl
    National Wildlife Research Center, USDA APHIS WS, 4101 LaPorte Ave, Fort Collins, CO 80521, USA
    J Chromatogr Sci 43:367-71. 2005
  3. ncbi request reprint Determination of 4,4'-dinitrocarbanilide (DNC), a component of Nicarbazin, in Canada goose (Branta canadensis) eggshells using high-performance liquid chromatography
    Randal S Stahl
    USDA APHIS WS National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, Colorado 80521, USA
    J Agric Food Chem 51:1130-5. 2003
  4. ncbi request reprint 4,4'-Dinitrocarbanilide (DNC) concentrations in egg shells as a predictor of nicarbazin consumption and DNC dose in goose eggs
    Randal S Stahl
    National Wildlife Research Center, 4101 LaPorte Ave, Ft Collins, CO 80521, USA
    Pest Manag Sci 59:1052-6. 2003
  5. ncbi request reprint Development of a high performance liquid chromatography/mass spectroscopy method for the determination of strychnine concentrations in insects used to assess potential risks to insectivores
    Randal S Stahl
    US Department of Agriculture, APHIS WS, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO 80521, USA
    J Chromatogr B Analyt Technol Biomed Life Sci 811:257-62. 2004
  6. pmc Fecal Volatile Organic Ccompound Profiles from White-Tailed Deer (Odocoileus virginianus) as Indicators of Mycobacterium bovis Exposure or Mycobacterium bovis Bacille Calmette-Guerin (BCG) Vaccination
    Randal S Stahl
    United States Department of Agriculture USDA Animal and Plant Health Inspection Service APHIS Wildlife Services, National Wildlife Research Center, Fort Collins, Colorado, United States of America
    PLoS ONE 10:e0129740. 2015
  7. ncbi request reprint Probabilistic model for estimating field mortality of target and non-target bird populations when simultaneously exposed to avicide bait
    John J Johnston
    USDA APHIS Wildlife Services, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO 80521, USA
    Pest Manag Sci 61:649-59. 2005
  8. ncbi request reprint High-performance liquid chromatography-based determination of nicarbazin excretion in waterfowl
    Randal S Stahl
    National Wildlife Research Center, USDA APHIS, 4101 La Porte Avenue, Fort Collins, CO 99801 USA
    J Chromatogr B Analyt Technol Biomed Life Sci 775:103-8. 2002
  9. doi request reprint Mineral licks: motivational factors for visitation and accompanying disease risk at communal use sites of elk and deer
    Michael J Lavelle
    United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO, 80521 2154, USA
    Environ Geochem Health 36:1049-61. 2014
  10. pmc A pilot study exploring the use of breath analysis to differentiate healthy cattle from cattle experimentally infected with Mycobacterium bovis
    Christine K Ellis
    Animal Population Health Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America United States Department of Agriculture, Animal Plant and Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, Colorado, United States of America
    PLoS ONE 9:e89280. 2014

Collaborators

Detail Information

Publications10

  1. ncbi request reprint Improved method for quantifying the avicide 3-chloro-p-toluidine hydrochloride in bird tissues using a deuterated surrogate/GC/MS method
    Randal S Stahl
    National Wildlife Research Center, USDA APHIS, 4101 LaPorte Avenue, Fort Collins, Colorado 80521, USA
    J Agric Food Chem 50:732-8. 2002
    ..The appearance of CPTH in the breast muscle tissue immediately after feeding was not anticipated. The potential secondary hazard posed by the targeted birds to potential scavengers and predators was also evaluated...
  2. ncbi request reprint Characterizing 3-chloro-p-toluidine hydrochloride on rough-hulled rice and ethyl-cellulose-coated rice baits using high-performance liquid chromatography
    Randal S Stahl
    National Wildlife Research Center, USDA APHIS WS, 4101 LaPorte Ave, Fort Collins, CO 80521, USA
    J Chromatogr Sci 43:367-71. 2005
    ..Increased retention time is observed for CPT HCl at the higher pH. The two methods have been useful in characterizing different bait formulations in an ongoing pesticide formulation improvement program...
  3. ncbi request reprint Determination of 4,4'-dinitrocarbanilide (DNC), a component of Nicarbazin, in Canada goose (Branta canadensis) eggshells using high-performance liquid chromatography
    Randal S Stahl
    USDA APHIS WS National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, Colorado 80521, USA
    J Agric Food Chem 51:1130-5. 2003
    ..DNC levels in the eggshells were highly correlated with feed dose...
  4. ncbi request reprint 4,4'-Dinitrocarbanilide (DNC) concentrations in egg shells as a predictor of nicarbazin consumption and DNC dose in goose eggs
    Randal S Stahl
    National Wildlife Research Center, 4101 LaPorte Ave, Ft Collins, CO 80521, USA
    Pest Manag Sci 59:1052-6. 2003
    ..Our method allows for the estimation of nicarbazin consumption and DNC dose in eggs under field conditions, which is important in developing an effective infertility agent for over-abundant non-migratory goose populations...
  5. ncbi request reprint Development of a high performance liquid chromatography/mass spectroscopy method for the determination of strychnine concentrations in insects used to assess potential risks to insectivores
    Randal S Stahl
    US Department of Agriculture, APHIS WS, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO 80521, USA
    J Chromatogr B Analyt Technol Biomed Life Sci 811:257-62. 2004
    ..338, 0.341, 0.698, and 0.034 microg/g were detected in ants, fly adults, fly larvae, and beetles, respectively. This information collected with the HPLC/MS method is critical for assessing potential non-target hazards for insectivores...
  6. pmc Fecal Volatile Organic Ccompound Profiles from White-Tailed Deer (Odocoileus virginianus) as Indicators of Mycobacterium bovis Exposure or Mycobacterium bovis Bacille Calmette-Guerin (BCG) Vaccination
    Randal S Stahl
    United States Department of Agriculture USDA Animal and Plant Health Inspection Service APHIS Wildlife Services, National Wildlife Research Center, Fort Collins, Colorado, United States of America
    PLoS ONE 10:e0129740. 2015
    ..Additionally, the technique may prove invaluable for BCG efficacy studies with free-ranging deer as well as for use as a non-invasive monitoring system for the detection of tuberculosis in captive deer and other livestock. ..
  7. ncbi request reprint Probabilistic model for estimating field mortality of target and non-target bird populations when simultaneously exposed to avicide bait
    John J Johnston
    USDA APHIS Wildlife Services, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO 80521, USA
    Pest Manag Sci 61:649-59. 2005
    ....
  8. ncbi request reprint High-performance liquid chromatography-based determination of nicarbazin excretion in waterfowl
    Randal S Stahl
    National Wildlife Research Center, USDA APHIS, 4101 La Porte Avenue, Fort Collins, CO 99801 USA
    J Chromatogr B Analyt Technol Biomed Life Sci 775:103-8. 2002
    ..5 microg fortified samples (n=3) had mean recoveries of 91, 94 and 97% and intra-day (n=3) recoveries at the same fortification levels of 103, 94, and 92%. The method has been used successfully in excretion studies of nicarbazin in ducks...
  9. doi request reprint Mineral licks: motivational factors for visitation and accompanying disease risk at communal use sites of elk and deer
    Michael J Lavelle
    United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO, 80521 2154, USA
    Environ Geochem Health 36:1049-61. 2014
    ....
  10. pmc A pilot study exploring the use of breath analysis to differentiate healthy cattle from cattle experimentally infected with Mycobacterium bovis
    Christine K Ellis
    Animal Population Health Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America United States Department of Agriculture, Animal Plant and Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, Colorado, United States of America
    PLoS ONE 9:e89280. 2014
    ..The findings provide proof of concept that breath-derived volatile organic compound analysis can be used to differentiate between healthy and M. bovis-infected cattle. ..