Sue Ann Hubbard

Inhalation exposure and health effects of copper particles in the context of occupational exposure limit derivation

Craig A. Poland, Adriana R. Oller, Len Levy, Sue Ann Hubbard et autres

Copper is a naturally occurring element found in the Earth’s crust, soil, water, and air. However, human activities such as smelting, refining, and producing copper-containing products pose a likelihood of occupational inhalation exposure. While copper is an essential element vital to human …

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In vivo micronucleus assay on sodium molybdate in rats and its impact on the overall assessment of the genotoxicity of molybdenum substances

Sue Ann Hubbard, Kevin Klipsch, Michael S Cockburn, Sandra A. Carey

, is considered the responsible moiety for any toxicological effect (grouping/category approach). After consideration of the relevance and reliability of all available data, the absence of a concern for genotoxicity of molybdate in vitro and in vivo is concluded.

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Corrigendum to “Automated enumeration of Eimeria oocysts in feces for rapid coccidiosis monitoring” [Poult. Sci. 102 (1) (2023) 102252]

Mary K. Smith, Diane L. Buhr, Thabani A. Dhlakama, Diana Dupraw et autres

Sodium molybdate dihydrate does not exhibit developmental or reproductive toxicity in Sprague-Dawley rats maintained on a marginal copper diet

F. Jay Murray, Lindsay Aveyard, Sue Ann Hubbard, Alan M. Hoberman et autres

Groups of 24 weanling female Sprague-Dawley rats were administered molybdenum (Mo) as sodium molybdate dihydrate (SMD) in drinking water at target dose levels of 0, 20, or 40 mg Mo/kg bw/day and fed a semi-purified marginal copper (6.2 ppm Cu) AIN-93 G …

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Molybdenum

Kevin Klipsch, Lindsay Aveyard, Sandra A. Carey, Sue Ann Hubbard et autres

Abstract Molybdenum is an essential element for humans, animals, and plants. But excess exposure to molybdenum substances may cause harmful effects. This chapter describes natural occurrence, production, uses, and chemical and biochemical properties of molybdenum substances, and possible adverse effects in relation …

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Corrigendum to “Automated enumeration of Eimeria oocysts in feces for rapid coccidiosis monitoring” [Poultry Science, Volume 102, Issue 1, January 2023, 102252]

Mary K. Smith, Diane L. Buhr, Thabani A. Dhlakama, Diana Dupraw et autres

Automated enumeration of Eimeria oocysts in feces for rapid coccidiosis monitoring

Mary K. Smith, Diane L. Buhr, Thabani A. Dhlakama, Diana Dupraw et autres

Coccidiosis represents a major driver in the economic performance of poultry operations, as coccidia control is expensive, and infections can result in increased feed conversion ratios, uneven growth rates, increased co-morbidities with pathogens such as Salmonella, and mortality within flocks. Shifts in …

Inhalation toxicity of copper compounds: Results of 14-day range finding study for copper sulphate pentahydrate and dicopper oxide and 28-day subacute inhalation exposure of dicopper oxide in rats

Craig A. Poland, Sue Ann Hubbard, Len Levy, Carol Mackie

Inhalation exposure to copper may occur during a range of occupational activities and the purpose of this study was to characterise the toxicological response to repeated inhalation of two copper compounds, representative of copper substances in large-scale production/use. Crl:CD(SD) rats were repeatedly …

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A two-generation reproductive toxicity study of sodium molybdate dihydrate administered in drinking water or diet to Sprague-Dawley rats

F. Jay Murray, Frank Sullivan, Sue Ann Hubbard, Alan M. Hoberman et autres

In an OECD Test Guideline 416 multigenerational study, groups of 24 male and 24 female Sprague-Dawley rats were administered sodium molybdate dihydrate at 0, 5, 17, or 40 mg molybdenum (Mo)/kg bw/day in the drinking water or 40 mg Mo/kg bw/day in …

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Pilot Study: Colostomy and Urine Collection Protocol for Investigating Potential Inciting Causes of Hen Diuresis Syndrome

Kelli M. Jones, Bradley S. Turner, João Brandão, Sue Ann Hubbard et autres

Hen diuresis syndrome has emerged over the past 5 yr as a significant cause of mortality in the U.S. broiler breeder industry. The condition affects hens in production and is characterized by transient muscle weakness in the vent region, transient diuresis, and …

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Egg Residue Breakout Analysis for Backyard Birds

Sue Ann Hubbard

Effects of Broiler Feed Medications on Salmonella

Victoriya V. Volkova, Sue Ann Hubbard, Danny L. Magee, J. Allen Byrd et autres

This pilot analysis was conducted with data from 52 conventional grow-out broiler flocks in a prospective field observational study in the southeastern United States during 2003–2006. Each flock was sampled for Salmonella 1 wk before the end of grow-out, upon arrival at …

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