Results 101 to 110 of about 4,714 (194)

Yolk Color and Lipid Oxidation of the Eggs of Commercial White Layers Fed Diets Supplemented with Vegetable Oils

open access: yesBrazilian Journal of Poultry Science, 2016
The objective of this study was to evaluate the influence of the supplementation of vegetable oils rich in polyunsaturated fatty acids to the diet of Leghorn layers on yolk color and on yolk lipid oxidation of eggs stored at room temperature for 10 days.
ABG Faitarone   +5 more
doaj   +1 more source

The Influence of Ethoxyquin and Sodium Bicarbonate on Egg Yolk Pigmentation

open access: yesPoultry Science, 1972
Abstract Each of four diets containing no additive, .0125% ethoxyquin, .325% sodium bicarbonate or both additives at these levels were subdivided and stored for three weeks at 3°C. or 47°C. prior to feeding. Egg collection from White Leghorn hens in individual cages were made after 12, 14, 16, 24, 26 and 28 days on test for carotenoid determinations.
R.D. Bushong   +2 more
openaire   +1 more source

The influence of different salinity conditions on egg buoyancy and development and yolk sac larval survival and morphometric traits of Baltic Sea sprat (Sprattus sprattus balticus Schneider)

open access: yesScientia Marina, 2009
The small pelagic sprat (Sprattus sprattus) is a key ecologic player in the Baltic Sea. However, there is long-term variability in recruitment which is thought to be influenced by fluctuations in abiotic and biotic conditions experienced during the early
Christoph Petereit   +5 more
doaj   +1 more source

Clinal Variation in Reproductive Modes and Offspring Body Condition Across a Contact Zone of a Bimodal Viviparous Salamander

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
We examined clinal gradients in reproductive modes and associated offspring body condition across a hybrid zone between two bimodal viviparous subspecies of Salamandra salamandra. We found a clear cline in reproductive modes, with pure modes at the extremes and mixed modes in central populations.
Clara Figueiredo‐Vázquez   +2 more
wiley   +1 more source

Projected Warming of the Southern Ocean Disrupts Embryonic Development and Hatch Timing in Antarctic Fish

open access: yesGlobal Change Biology Communications, Volume 1, Issue 1, March 2026.
Embryos are particularly sensitive to thermal challenge. Antarctic fish embryos raised at projected Southern Ocean temperatures hatch during the winter, have a high incidence of morphological abnormalities, have shorter body lengths, and express genes indicative of cellular stress.
Margaret Streeter   +6 more
wiley   +1 more source

Description of larvae and juveniles of Brycon falcatus (Characiformes: Bryconidae) from the Tapajós River sub-basin, Brazil [PDF]

open access: yesNeotropical Ichthyology
Brycon falcatus (Characiformes: Bryconidae) is an Amazonian fish species of great relevance in fisheries and as a seed disperser. However, knowledge about its early development is limited due to the lack of information for accurate identification.
Fabíola Katrine Souza da Silva-Cajado   +5 more
doaj   +1 more source

Egg Yolk and Broiler Skin Pigmentation with Sweet Potato Vine Meal , ,

open access: yesPoultry Science, 1974
Abstract Dehydrated sweet potato vine meal (SPVM) was evaluated as a xanthophyll pigment source for broiler skin and egg yolks. In the experiment with hens SPVM was compared with alfalfa meal in a diet in which these sources provided the only source of pigment.
J.D. Garlich   +4 more
openaire   +1 more source

Larval Development of the New Zealand Deep Water Scampi, Metanephrops challengeri (Balss, 1914) (Decapoda: Nephropidae)

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 1, March 2026.
The New Zealand scampi, Metanephrops challengeri, is a lobster species which has an extensive distribution on much of the continental shelf and slopes around the country in depths between 140 and 640 m. This species is important ecologically, and forms the basis of a valuable commercial fishery.
Kevin G. Heasman   +3 more
wiley   +1 more source

Variations in the Composition of Egg-yolk Pigment [PDF]

open access: yesBritish Journal of Nutrition, 1952
F H, GRIMBLEBY, D J G, BLACK
openaire   +2 more sources

Alfalfa‐Based Dehydrated Silage Pellet as a Source of Nutrients in Laying Hens: I. Effects on Animal Performance and Egg Quality

open access: yesVeterinary Medicine and Science, Volume 12, Issue 2, March 2026.
Alfalfa‐based silage pellets (ABSP) showed significant results regarding production performance, yolk colour and ω‐3 (PUFAs), as well as the ratio ω‐6/ω‐3 (p < 0.05). The ABSP group also exhibited a higher abundance of beneficial bacteria and a lower abundance of pathogenic bacteria compared to the control group (p < 0.05).
Abbas Hamim   +7 more
wiley   +1 more source

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