Results 81 to 90 of about 19,805 (247)

The planktonic food web in the Gulf of Naples based on the analysis of carbon and nitrogen stable isotope ratios

open access: yesMarine Ecology, EarlyView., 2023
Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol   +2 more
wiley   +1 more source

Mosaic activation of the zebrafish hsp70l heat shock promoter: Implications for interpreting transgenes

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The promoters and enhancers of heat shock genes, such as the 1.5‐kb promoter of the zebrafish hsp70l gene, are valuable tools for temporal activation of transgenes. It has been widely purported that heat shock treatments result in ubiquitous expression of hsp70l‐driven transgenes.
Jong‐Su Park, Xiangyun Wei
wiley   +1 more source

Effect of Syzygium cumini leaves on laying hens performance and egg quality

open access: yesAnais da Academia Brasileira de Ciências
The aim of this study was to evaluate the effect of Syzygium cumini leaves (SCL) in laying hens diets on productive performance, egg quality and lipid oxidation of yolk.
EDNARDO R. FREITAS   +10 more
doaj   +1 more source

Influence of the Housing System on Physical Quality Indicators of the Internal Content of Laying Hens Table Eggs

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
In this experiment the effects of different housing systems on physical indicators of egg yolk and egg albumen quality of table eggs were studied. Hens of laying hybrid Lohmann Brown Lite were housed in two different housing systems, in enriched cage or ...
Henrieta Arpášová   +6 more
doaj  

Performance and egg quality of laying hens fed with mineral sources and rosemary oil

open access: yesAnais da Academia Brasileira de Ciências, 2019
In order to evaluate the effect of rosemary oil and micro mineral sources on the performance and egg quality of laying hens, 288 hens were used and distributed in a completely randomized design using a 2x3 factorial (mineral sources x rosemary oil) with ...
ELIS REGINA DE M. GARCIA   +4 more
doaj   +1 more source

An accessible microfluidic perfusion platform for time‐restricted control of zebrafish embryonic patterning

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Understanding the dynamic nature of developmental networks requires live imaging techniques capable of capturing real‐time developmental processes in wild‐type and mutant embryos as they are exposed to pharmacological perturbations. A peculiar developmental patterning process in early vertebrate embryos is the sequential segmentation of ...
Mohammed Nakhuda, M. Fethullah Simsek
wiley   +1 more source

Egg Yolk Color as Influenced by Xanthophyll and Feedstuffs Containing Related Pigments

open access: yes, 1962
The economics of egg marketing demand new and more equitable methods of distributing eggs and egg products into the various marketing channels.Recent improvements have been made in keeping quality and uniformity of egg yolk color. Although there has been
Holleman, Kendrick Alfred
core  

Effects of Dietary Coenzyme Q10 on Egg Quality, Yolk Coenzyme Q10 Content, and Antioxidant Capacity in Laying Hens [PDF]

open access: yesBrazilian Journal of Poultry Science
This study was conducted to evaluate the effects of dietary coenzyme Q10 (CoQ10, 100 mg CoQ10/kg diet) and its form on egg quality, transfer of CoQ10 into the yolk, and antioxidant indices in laying hens.
GH Nam, IS Jang
doaj   +1 more source

Acorns One Cause of Olive-Colored Yolks

open access: yesPoultry Science, 1942
Abstract EGGS with olive-colored yolks have been observed frequently by poultrymen. Among the investigators who have reported finding eggs with such off-colored yolks are Pennington (1918), Benjamin (1923), Payne (1924), and Berry (1938). Olive-colored yolks, in the opinion of Pennington and Benjamin, result from hens consuming excess quantities of ...
openaire   +1 more source

Development of a Zebrafish Embryo‐Based Test System for Thyroid Hormone System Disruption: 3Rs in Ecotoxicological Research

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract There is increasing concern regarding pollutants disrupting the vertebrate thyroid hormone (TH) system, which is crucial for development. Thus, identification of TH system–disrupting chemicals (THSDCs) is an important requirement in the Organisation for Economic Co‐operation and Development (OECD) testing framework.
Lisa Gölz   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy