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Abstract

Condensed tannins (CT) in ruminant diets reduce ruminal N degradation, but there is little research on how these phenolic compounds alter N metabolism during manure composting. This study investigated effects of CT additives in cattle diets on N content and greenhouse gas (GHG) emissions from...

Author(s)
Hao XiYing; Benke, M. B.; Li ChunLi; Larney, F. J.; Beauchemin, K. A.; McAllister, T. A.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Feed Science and Technology, 2011, 166/167, pp 539-549
Abstract

Inclusion of dried distillers grain with solubles (DDGS) in cattle diets, coupled with the increasing use of construction and demolition waste (CDW), particularly the wood and drywall fractions as bedding in beef cattle feedlots, may affect nitrogen (N) dynamics when the resulting manure is applied ...

Author(s)
Agomoh, I.; Zvomuya, F.; Hao XiYing; Akinremi, O. O.; McAllister, T. A.
Publisher
Soil Science Society of America Inc., Madison, USA
Citation
Soil Science Society of America Journal, 2018, 82, 1, pp 167-175
Abstract

Dissipation of antimicrobial resistance genes (ARG) during composting of cattle manure generated through fortification versus administration of antimicrobials in feed was compared. Manure was collected from cattle fed diets containing (kg-1) dry matter (DM): (1) 44 mg chlortetracycline (CTC), (2) a ...

Author(s)
Xu ShanWei; Amarakoon, I. D.; Zaheer, R.; Smith, A.; Srinivas Sura; Wang, G.; Reuter, T.; Zvomuya, F.; Cessna, A. J.; Larney, F. J.; McAllister, T. A.
Publisher
Taylor & Francis, Philadelphia, USA
Citation
Journal of Environmental Science and Health. Part A, Toxic/Hazardous Substances & Environmental Engineering, 2018, 53, 4, pp 373-384
Abstract

The use of construction and demolition waste (CDW) and peat moss as bedding in beef cattle feedlots may affect the amount of plant-available nitrogen (N) in manure. Such an effect, however, may differ between manure from cattle fed a regular grain diet (RM) and those fed dried distiller grains with ...

Author(s)
Agomoh, I.; Zvomuya, F.; Hao XiYing; McAllister, T. A.
Publisher
NRC Research Press, Ottawa, Canada
Citation
Canadian Journal of Soil Science, 2018, 98, 1, pp 27-44
Abstract

Cattle are the primary carrier of Escherichia coli O157:H7, a foodborne human pathogen, and those shedding >104 CFU/gram of feces of E. coli O157:H7 are defined as supershedders (SS). This study investigated the rectoanal junction (RAJ) mucosa-associated microbiota and its relationship with host...

Author(s)
Wang Ou; McAllister, T. A.; Plastow, G.; Stanford, K.; Selinger, B.; Guan LeLuo
Publisher
American Society for Microbiology (ASM), Washington, USA
Citation
Applied and Environmental Microbiology, 2018, 84, 1, pp e01738
Abstract

The present study compared ammonia (NH3) emissions from Canadian beef production in 1981-2011. Temporal and regional differences in cattle categories, feed types and management systems, average daily gains, carcass weights, and manure handling practices were considered. A scenario-based sensitivity ...

Author(s)
Legesse, G.; Kroebel, R.; Alemu, A. W.; Ominski, K. H.; McGeough, E. J.; Beauchemin, K. A.; Chai LiLong; Bittman, S.; McAllister, T. A.
Publisher
NRC Research Press, Ottawa, Canada
Citation
Canadian Journal of Animal Science, 2018, 98, 4, pp 833-844
Abstract

BACKGROUND: In ruminants, enteric CH4 represents a major energy loss for the host and is a potent greenhouse gas that contributes to climate change. Previous studies have shown that humic substances (HS) may have beneficial effects on livestock nutrition. The present study investigated the effects...

Author(s)
Sheng Ping; Ribeiro, G. O.; Wang YuXi; McAllister, T. A.
Publisher
Wiley, Chichester, UK
Citation
Journal of the Science of Food and Agriculture, 2019, 99, 5, pp 2152-2157
Abstract

Future growth in demand for meat and milk, and the socioeconomic and environmental challenges that farmers face, represent a "grand challenge for humanity". Improving the digestibility of crop residues such as straw could enhance the sustainability of ruminant production systems. Here, we...

Author(s)
Ribeiro, G. O.; Oss, D. B.; He ZhiXiong; Gruninger, R. J.; Elekwachi, C.; Forster, R. J.; Yang WenZhu; Beauchemin, K. A.; McAllister, T. A.
Publisher
Nature Publishing Group, London, UK
Citation
Scientific Reports, 2017, 7, 1, pp 1276
Abstract

The host mechanisms involved in Escherichia coli O157 super-shedding in cattle is largely unknown. In this study, the comparison of transcriptomes of intestinal tissues between super-shedders (SS) and cattle negative for E. coli O157 (NS) was performed, aiming to identify genes that are potentially ...

Author(s)
Wang Ou; McAllister, T. A.; Plastow, G.; Stanford, K.; Selinger, B.; Guan LeLuo
Publisher
Nature Publishing Group, London, UK
Citation
Scientific Reports, 2017, 7, 1, pp 7630
Abstract

Rain runoff from windrowed or stockpiled manure may contain antimicrobials with the potential to contaminate surface and ground water. To quantify the concentration of antimicrobials transported in runoff from windrowed manure, antimicrobials were administered continuously in feed to beef cattle (...

Author(s)
Srinivas Sura; Degenhardt, D.; Cessna, A. J.; Larney, F. J.; Olson, A. F.; McAllister, T. A.
Publisher
American Society of Agronomy, Madison, USA
Citation
Journal of Environmental Quality, 2016, 45, 2, pp 494-502

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