Results 91 to 100 of about 632,009 (393)

Pre‐oviposition development of the brown anole (Anolis sagrei)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The brown anole, Anolis sagrei, has emerged as a representative squamate species for developmental studies during the past decades. Novel functional tools have been established to manipulate embryogenesis through genome editing or the introduction of small molecule inhibitors, and their effective use requires a thorough ...
Antonia Weberling   +9 more
wiley   +1 more source

Changes in the protein secondary structure of hen's egg yolk determined by Fourier transform infrared spectroscopy during the first eight days of incubation.

open access: yesPoultry Science, 2015
In this study, incubation-induced alterations in the protein secondary structures of egg yolk and its major fractions (granules, plasma, and low-density lipoproteins [LDL]) were monitored during the first 8 d of embryogenesis using Fourier transform ...
S. Lilienthal, A. M. Drotleff, W. Ternes
semanticscholar   +1 more source

A comprehensive embryonic staging series of the turtle Trachemys scripta

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Turtles hold a unique place in vertebrate evolutionary history, making them critical assets in embryology research. Yet, they remain understudied as potential model organisms in the field. Here, to support experimental manipulations with turtle embryos, we have created a complete normal table of development for comprehensive ...
Christina M. Noravian   +6 more
wiley   +1 more source

Effect of Storage on the Antioxidant Activity of Yolk Lipid for Some Kinds of Eggs

open access: yesMaǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2018
The current study included estimating the antioxidant activity of yolk lipid for the quail egg, Coturnix japonica (quail), Gallus gallus L. (hen), Anas Platyrhynchos L. (duck) and Gygnus cygnus L.(goose).
Sara H.M. Shareef   +1 more
doaj   +1 more source

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova   +4 more
wiley   +1 more source

Chemical Composition of the Eggs of the Freshwater Turtle Phrynops hilarii (Chelidae: Testudines) [PDF]

open access: yes, 2019
At oviposition, amniote eggs contain all the nutrients required for complete neonate tissue development. For reptiles and birds, the egg yolk is the main embryonic energy source and is composed predominantly of proteins and lipids, while also providing ...
Bernardi, Cecilia Gabriela   +3 more
core  

A Comparison of Egg Yolk-Sodium Citrate, Egg Yolk-Sodium Citrate-Glycine, and Egg Yolk-Glycine as Semen Diluters

open access: yesJournal of Dairy Science, 1958
Summary The average length of time that a +3 motility was maintained in egg yolk-citrate-glycine, egg yolk-glycine, and egg yolk-citrate, was 14.7, 13.9, and 6.8 days, respectively, for bovine sperm; 6.8, 8.8, and 3.5 days, respectively, for buffalo sperm; and 17.2, 8.0, and 4.4 days for ram sperm.
S.K. Saha, R.B. Singh
openaire   +1 more source

Multifunctional peptides derived from an egg yolk protein hydrolysate: isolation and characterization

open access: yesAmino Acids, 2014
An egg yolk protein by-product following ethanol extraction of phospholipids (YP) was hydrolyzed with pepsin to produce and identify novel peptides that revealed antioxidant, ACE inhibitory and antidiabetic (α-glucosidase and DPP-IV inhibitory ...
A. Zambrowicz   +9 more
semanticscholar   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher   +12 more
wiley   +1 more source

Egg Production and Quality of Magelang Duck Fed Diets Containing Different Ratio of Omega 3 : Omega 6 and Organic Zn [PDF]

open access: yes, 2013
The aims of this study were to determine the feeding effect of diets containing different ratio of ω-3 and ω-6 fatty acids and organic Zn on egg production and quality of Magelang duck.
Darmawan, A. (A)   +2 more
core  

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