Results 11 to 20 of about 15,277 (227)

An examination of scenarios to increase waterfowl hunting participation

open access: yesWildlife Society Bulletin, 2023
Since the 1970s, waterfowl hunting participation has declined in the United States, which has resulted in socioeconomic consequences for waterfowl conservation and management.
Matthew P. Hinrichs   +5 more
doaj   +1 more source

Expression of GnIH and its effects on follicle development and steroidogenesis in quail ovaries under different photoperiods

open access: yesPoultry Science, 2022
: Photoperiod is an important environmental factor that influence seasonal reproduction behavior in bird and GnIH can play a function in this process through the reproductive axis, and some studies suggest that GnIH may have a direct role at the gonadal ...
Xiaoli Zhou   +7 more
doaj   +1 more source

Ammonia affects production performance and Toll-like receptor mRNA expression of laying ducks

open access: yesJournal of Applied Poultry Research, 2020
Summary: The objective of this study was to assess the effects of different concentrations of ammonia on laying performance and Toll-like receptor (TLR) and cytokine mRNA expression in Shanma ducks.
Z. Tao   +7 more
doaj   +1 more source

Update on Reovirus Infections in Waterfowls. [PDF]

open access: goldAnimals (Basel)
Farkas SL   +5 more
europepmc   +2 more sources

Evaluation of fall‐seeded cover crops for grassland nesting waterfowl in eastern South Dakota

open access: yesWildlife Society Bulletin, EarlyView., 2023
Cover crops are experiencing a revival among Midwestern farmers, and we assessed their attractiveness and safety for nesting ducks in South Dakota. Nest success was markedly lower in cover crops than in perennial cover during both years of our study, including 2019 which was a best‐case scenario for cover crops, with extremely wet conditions delaying ...
Charles W. Gallman   +3 more
wiley   +1 more source

Resveratrol sustains intestinal barrier integrity, improves antioxidant capacity, and alleviates inflammation in the jejunum of ducks exposed to acute heat stress

open access: yesPoultry Science, 2021
: Resveratrol, a natural antioxidant, anti-inflammatory plant extract, was found to have a protective effect in poultry subjected to heat stress. In this study, we strove to characterize resveratrol on intestinal of duck exposed to acute heat stress and ...
Chen Yang   +8 more
doaj   +1 more source

Linking Canadian Harvested Juvenile American Black Ducks to Their Natal Areas Using Stable Isotope (δD, δ13C, and δ15N) Methods

open access: yesAvian Conservation and Ecology, 2010
Understanding source-sink dynamics of game birds is essential to harvest and habitat management but acquiring this information is often logistically and financially challenging using traditional methods of population surveys and banding studies.
Paul Ashley   +4 more
doaj   +1 more source

Reference gene selection for expression studies in the reproductive axis tissues of Magang geese at different reproductive stages under light treatment

open access: yesScientific Reports, 2021
In quantitative PCR research, appropriate reference genes are key to determining accurate mRNA expression levels. In order to screen the reference genes suitable for detecting gene expression in tissues of the reproductive axis, a total of 420 (males and
Bei-Bei Zhang   +5 more
doaj   +1 more source

Photoperiodic Changes in Both Hypothalamus Neurotransmitters and Circulating Gonadal Steroids Metabolomic Profiles in Relation to Seasonal Reproduction in Male Quail

open access: yesFrontiers in Physiology, 2022
Both hypothalamic neurotransmitters and serum steroid hormones are impacted by photoperiod and have effects on physiology and seasonal reproductive.
Yanglong Xu   +25 more
doaj   +1 more source

A wetland permanence classification tool to support prairie wetland conservation and policy implementation

open access: yesConservation Science and Practice, 2023
Wetland permanence, the duration and frequency that surface water is present, affects biological communities and whether wetlands are protected under legislation in some jurisdictions.
James E. Paterson   +2 more
doaj   +1 more source

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