Results 121 to 130 of about 10,438 (251)

Alternativas para a valorização da casca de ovo como complemento alimentar e em implantes ósseos [PDF]

, 1998
Dissertacão (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências ...
Neves, Marcos Antonio das
core  

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

Assessing the Health Impacts of Contaminants on Green Turtles (Chelonia mydas) Along the Southern Coast of Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Chemical pollutants pose a significant threat to marine ecosystems. Among these contaminants are trace elements and polycyclic aromatic hydrocarbons (PAH). Green turtles can be employed to evaluate the oceans' health due to their coastal habitats and exposure to multiple threats.
Camila Roberta da Silva Ribeiro, Andressa Maria Rorato Nascimento de Matos, Eloiza Teles Caldart, Liana Rosa, Camila Domit, Guilherme dos Santos Lima, Ana Paula Frederico Rodrigues Loureiro Bracarense   +6 more
wiley   +1 more source

Excess Dietary Chloride Depresses Eggshell Quality

Poultry Science, 1984
Abstract An experiment was conducted to determine the influence of dietary monovalent electrolytes on egg production by Single Comb White Leghorn hens. Diets containing nutritionally adequate or excessive levels of sodium, potassium, or chloride were provided to hens during the first year of egg production from 206 to 233, 331 to 360, and 465 to 490 ...
openaire   +1 more source

Experimental Evidence for Mobilization of Mercury From the Eggshell by the Developing Embryo in an Avian Model Organism

Environmental Toxicology, EarlyView.
ABSTRACT Of the many pollutants wildlife is exposed to, mercury ranks among the most toxic. In birds, mercury does not only accumulate within generations, but also is transferred across generations via maternal offloading in eggs, with higher mercury concentrations found in shells of unhatched eggs.
Matteo Beccardi, Justine Bertram, Sandra Bouwhuis, Pablo Salmón, Peter J. Schupp, Oscar Vedder   +5 more
wiley   +1 more source

Landscape factors influencing predation on capercaillie nests by two competing mesopredators: pine marten and red fox

Wildlife Biology, EarlyView.
Predation by pine martens Martes martes and red foxes Vulpes vulpes is an important factor influencing the population dynamics of capercaillie Tetrao urogallus. However, there is a knowledge gap regarding the relative effects of these mesopredators on the reproductive success of capercaillie. To better understand how various landscape factors influence
Siow Yan Jennifer Angoh, Scott Michael Brainerd, Olivier Devineau, Morten Odden, Torfinn Jahren   +4 more
wiley   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

Wildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling, Molly C. McDevitt, Jonathan J. Felis, William Crisci, Zachary Pohlen, Ryan Ongtowasruk, Daniel L. Perret, Paul M. Lukacs, James A. Johnson, Metrona Mazonna   +9 more
wiley   +1 more source

Environmental factors associated with nesting habits and age shape the composition and connection between skin and uropygial gland microbiomes of birds

Journal of Animal Ecology, EarlyView.
This study provides new insights into how ecological conditions influence the evolution of host‐associated symbiotic communities and their functional roles. The findings suggest that pathogen pressures linked to nesting habits in birds shape bacterial communities of the uropygial gland, and their connection with the skin microbiome, where the ...
Ester Martínez‐Renau, Kasun H. Bodawatta, Antonio M. Martín‐Platero, Manuel Martín‐Vivaldi, María Dolores Barón, Cristina Ruiz‐Castellano, Manuel Martínez‐Bueno, Knud A. Jønsson, Michael Poulsen, Juan José Soler   +9 more
wiley   +1 more source

Decreased eggshell strength caused by impairment of uterine calcium transport coincide with higher bone minerals and quality in aged laying hens

Journal of Animal Science and Biotechnology
Background Deteriorations in eggshell and bone quality are major challenges in aged laying hens. This study compared the differences of eggshell quality, bone parameters and their correlations as well as uterine physiological characteristics and the bone
Yu Fu, Jianmin Zhou, Martine Schroyen, Haijun Zhang, Shugeng Wu, Guanghai Qi, Jing Wang   +6 more
doaj   +1 more source

Conceptualizing moral migration: how disillusionment and the transnational right motivate migration to Russia Conceptualiser la migration morale : comment les désillusions et la droite transnationale motivent l’émigration vers la Russie

Journal of the Royal Anthropological Institute, EarlyView.
Russia is consistently a top migration destination. While most migrate to Russia from other post‐Soviet countries, a small but highly visible group of the Russian‐speaking diaspora has returned from Europe and North America. Lauded in Russian media as ‘ideological migrants’, their narratives at first glance echo those of the state as they claim to flee
Lauren Woodard
wiley   +1 more source