Results 61 to 70 of about 12,553 (221)

Changes in lipid droplet localization during embryogenesis of the silkworm, Bombyx mori. [PDF]

open access: yes, 2008
Lipid droplets are considered one of the most important energy sources in lepidopteran eggs during late embryogenesis, but the process of their incorporation into the embryo is as yet unknown.
5350   +5 more
core   +2 more sources

Development and identiication of Garra Larvae in Thailand [PDF]

open access: yesResearch & Knowledge, 2016
This study provides new data on the developmental morphology for the identiication of three species of ish found in Thailand, stone-lapping minnows (Garra cambodgiensis), sooty garra (G. fuliginosa), and Tenassarim garra (G. notata).
Apichart Termvidchakorn   +2 more
doaj   +1 more source

The Influence of Drosophila Spire and Myosin V During Mid‐Oogenesis Is Independent of Their Direct Interaction

open access: yesCytoskeleton, EarlyView.
ABSTRACT Cooperativity between cytoskeletal proteins is crucial for spatiotemporal coordination in biological processes, like oogenesis. In mammalian and Drosophila oogenesis, proper assembly and function of actin networks require coordination between actin assembly factors Spire and formins, as well as actin‐associated proteins like myosins and Rab ...
Joseph Y. Ong   +7 more
wiley   +1 more source

Deposition of carotenoids in egg yolk by short-term supplement of coloured carrot (Daucus carota) varieties as forage material for egg-laying hens [PDF]

open access: yes, 2010
BACKGROUND: Supplying egg-laying hens with different forage materials may influence egg production and quality. The aim of this study was to examine the short-term effects of standard feed plus 70 g day−1 per hen of three coloured carrot varieties ...
Hammershoj, Marianne   +2 more
core  

A macroscopic classification of the embryonic development of the one-sided livebearer Jenynsia multidentata (Teleostei: Anablepidae)

open access: yesNeotropical Ichthyology, 2017
This study proposes eight stages according to the main discernible changes recorded throughout the embryonic development of Jenynsia multidentata. The development of morphological embryo structures, pigmentation, and changes in tissues connecting mother ...
Nathalia C. López-Rodríguez   +2 more
doaj   +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

The effects of Spirulina sp. and vitamin E supplementation in laying hens diet on physical quality of eggs stored at different temperatures and times [PDF]

open access: yesBIO Web of Conferences
This study evaluated the effects of Spirulina sp. supplementation combined with vitamin E in laying hen diets on egg physical quality and shell strength during storage under different durations and temperatures.
Mutia Rita   +3 more
doaj   +1 more source

Comparative Molecular Insights into Developmental and Behavioral Toxicity Induced by Octocrylene and Ethylhexyl Salicylate Exposure on Zebrafish

open access: yesIntegrative Zoology, EarlyView.
This study compared the ecological toxicity of organic ultraviolet filters, octocrylene (OC) and ethylhexyl salicylate (EHS), on zebrafish embryos and larvae. EHS exhibited higher acute toxicity, causing increased mortality, hypoactive behavior at 50 mg/L, and disruptions in lipid homeostasis, while OC primarily affected hypoxia response and ...
Xiaoyang Lu   +5 more
wiley   +1 more source

The effects of temperature on hatching and survival of northern rock sole larvae (Lepidopsetta polyxystra) [PDF]

open access: yes, 2011
Northern rock sole (Lepidopsetta polyxystra) is a commercially important flatfish in Alaska and was recently classified as a distinct species from southern rock sole (L. bilineata).
Blood, Deborah M., Lauel, Benjamin J.
core  

Annatto seed by-product in diets containing sorghum for commercial laying hens

open access: yesRevista Ciência Agronômica, 2021
- The aim of this study was to evaluate the effect of including annatto seed by-product (ASB) in diets containing sorghum on nutrient utilization, performance and characteristics of the eggs of laying hens.
Marcelle Craveiro Abreu de Melo   +4 more
doaj   +1 more source

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