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Effects of phytase supplementation on performance and phosphorus excretion from broiler chickens fed low phosphorus-containing diets based on normal or low-phytic acid barley
Download2009-01-01
Thacker, Philip A., Haq, Inam, Willing, Benjamin P., Leytem, April B.
A total of 240 day-old broiler chicks were used to study the effects of phytase on performance and phosphorus (P) excretion from birds fed diets containing low phytate barleys formulated without inorganic P. A positive control based on Harrington barley (HB) was formulated to meet requirements...
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2006-01-01
McCauley, E., Lewis, Mark A., Lutscher, F.
The question how aquatic populations persist in rivers when individuals are constantly lost due to downstream drift has been termed the “drift paradox.” Recent modeling approaches have revealed diffusion-mediated persistence as a solution. We study logistically growing populations with and...
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Effects of heavy grazing pressure on the random amplified polymorphic DNA marker diversity of mountain rough fescue (Festuca campestris Rydb.) in south western Alberta
Download2005-01-01
Z. Mengli, W. D. Willms, H. Bing, A. Laroche
The Fescue Grassland is found in the western portion of the Northern Great Plains in Canada. Grazing and cultivation threaten this grassland, and a better understanding of its character is needed to preserve its integrity. Mountain rough fescue is highly sensitive to grazing during the growing...
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Effects of Habitat Fragmentation on Pairing Success of Ovenbirds: Importance of Male Age and Floater Behavior
Download2001
Bayne, Erin M., Hobson, Keith A.
Between 1996 and 1998, we compared pairing success of territorial male Ovenbirds (Seiurus aurocapillus) in forest fragments created by forestry (n 5 3) and agriculture (n 5 10) to contiguous forest plots (n 5 3) in the southern boreal mixedwood forest of central Saskatchewan. The percentage of...
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Effects of Gas Type, Oil, Salts and Detergent on Formation and Stability of Air and Carbon Dioxide Bubbles Produced by Using a Nanobubble Generator
Download2023-04-01
Zhou, Kaiyu, Maugard, Vincent, Zhang, Wenming, Zhou, Joe, Zhang, Xuehua
Recent developments in ultrafine bubble generation have opened up new possibilities for applications in various fields. Herein, we investigated how substances in water affect the size distribution and stability of microbubbles generated by a common nanobubble generator. By combining light...
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Effects of forest harvesting and fire on fish assemblages in Boreal Plains lakes: A reference condition approach
Download2003
Scrimgeour, G.J., Lange, M., Prepas, E.E., Westcott, K., Aku, P.K.M., Paszkowski, C.A., Tonn, W.M.
To assess the impacts of forest harvesting and fires on lentic fish assemblages in the Boreal Plains ecoregion (Alberta, Canada), we applied a reference condition approach to 37 lakes in burned, logged, or undisturbed catchments. Fish assemblages in the reference lakes were classified into two...
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Effects of flood seasonality and frequency on northern pintail and other breeding ducks in managed prairie wetlands
Download2011
Bork, E. W., Thompson, J. E., Asammoah, S. A.
Anthropogenic flooding to create wetlands is a management option intended to compensate for historical loss of natural wetlands in the Dry Mixedgrass Prairie of western Canada. It may help moderate or reverse declines in density of breeding Northern Pintails (Anas acuta L.) and other waterfowl....
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Effects of flood seasonality and frequency on northern pintail and other breeding ducks in managed prairie wetlands
Download2011
Thompson, Jonathan E., Bork, Edward W., Asamoah, Stephen A.
Anthropogenic flooding to create wetlands is a management option intended to compensate for historical loss of natural wetlands in the Dry Mixedgrass Prairie of western Canada. It may help moderate or reverse declines in density of breeding Northern Pintails (Anas acuta L.) and other waterfowl....
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Effects of flavonoid-rich plant extracts on in vitro ruminal methanogenesis, microbial populations and fermentation characteristics
Download2015
Lee, Su K., Lee, Il D., Guan, Le L., Kim, Eun T., Lee, Sung S., Lee, Sang S., Lee, Sang M., Lee, Shin J.
The objective of this study was to evaluate the in vitro effects of flavonoid-rich plant extracts (PE) on ruminal fermentation characteristics and methane emission by studying their effectiveness for methanogenesis in the rumen. A fistulated Holstein cow was used as a donor of rumen fluid. The PE...