Results 91 to 100 of about 38,807 (288)

Toxicity of Four Common Environmental Chemicals Across Caenorhabditis elegans Life Stages Supporting the One Health Concept

Environmental Toxicology, EarlyView.
ABSTRACT Pesticides and pharmaceuticals are among the most common chemical groups in waterbodies and soils, and their universal distribution raises concerns about potential adverse effects on nontarget organisms and humans. Reproductive output disruption is of particular concern, as it transposes effects from the individual to the next generations at ...
Fábio Campos, Maria D. Pavlaki, Amadeu M. V. M. Soares, Susana Loureiro   +3 more
wiley   +1 more source

Molecular Insights into Exoskeletal Remodeling: Transcriptomic Profiling of the Molting Cycle in the Red Swamp Crayfish Procambarus clarkii

Fishes
The molting of crustaceans is accompanied by exoskeleton reconstruction. To reveal the molecular regulation mechanism of exoskeleton remodeling, the transcriptomic profiles of the exoskeleton across the entire molting process in the red swamp crayfish ...
Yunkuan Zhu, Yu Xu, Suwan Lu, Yuning Hu, Hui Xu, Jiajia Li, Hai Lin, Xuguang Li, Zhiqiang Xu   +8 more
doaj   +1 more source

Effects of Molt-induction Period on Induction of Molt and Post-molt Performance in Laying Hens

The Journal of Poultry Science, 2009
This experiment was conducted to determine the effects of molt-induction period on molting and post-molt performance of laying hens. White Leghorn hens at 64 weeks of age were used. After a 4-week preliminary period, they were divided into 5 groups (1 control and 4 treatment groups).
Hnin Yi Soe, Masato Yayota, Shigeru Ohtani   +2 more
openaire   +2 more sources

Lobster movements in response to a hurricane [PDF]

, 1990
There are several anecdotal reports of the American lobster Homarus americanus moving to deeper water, or suffering increased mortality, in response to storm events.
Watson, Winsor H., III, Jury, Steven H., Howell, William Hunting   +2 more
core   +20 more sources

Spraying drones: efficacy of integrating an avian repellent with drone hazing to elicit blackbird flock dispersal and abandonment of sunflower fields

Wildlife Biology, EarlyView.
Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner, Timothy J. Greives, Page E. Klug   +2 more
wiley   +1 more source

Biochemical Parameters and Histopathological Findings in the Forced Molt Laying Hens

Brazilian Journal of Poultry Science
The aim of this study was to evaluate the effects of forced molting using biochemical parameters and histopathological findings in laying hens. 36 Hyline W36 strain laying hens, 90 weeks old were chosen for this research.
N Mert, BA Yildirim
doaj   +1 more source

Skewed sex ratio in an estuarine lobster (Homarus americanus) population [PDF]

, 1999
A total of 19,485 lobsters were caught sites in the estuarine and coastal waters of New Hampshire from 1989 to 1992, and their size and sex were determined.
Howell, William Hunting, Watson, Winsor H., III   +1 more
core   +1 more source

Distance sampling: comparing walked transects and road transects for rock ptarmigan densities and population trends

Wildlife Biology, EarlyView.
We compared population trends for rock ptarmigan Lagopus muta densities (2003‒2019) derived from walked transects and driven road transects in Mosfellsheiði and Slétta in southwest and northeast Iceland, respectively. The walked transects were laid out according to a random rule.
Matteo Ferrarini, Ólafur K. Nielsen
wiley   +1 more source

Effect of supersaturated dissolved oxygen on growth-, survival-, and immune-related gene expression of Pacific white shrimp (Litopenaeus vannamei) [PDF]

Veterinary World
Background and Aim: Oxygen concentration is an essential water quality parameter for aquaculture systems. Recently, supersaturated dissolved oxygen (DO) has been widely used in aquaculture systems to prevent oxygen depletion; however, the long-term ...
Songwut Patkaew, Sataporn Direkbusarakom, Ikuo Hirono, Suwit Wuthisuthimethavee, Sorawit Powtongsook, Chettupon Pooljun   +5 more
doaj   +1 more source

The Benefit of Maternal Care and Infanticide by Males as Reproductive Strategies in a Caprellid Amphipod. [PDF]

Ecol Evol
In the marine amphipod Caprella kominatoensis, males perform infanticide to terminate maternal care and accelerate female molting for mating opportunities. However, we found that maternal defense is effective when the female parent is larger than the intruding male.
Nakano K, Aoki M.
europepmc   +2 more sources