Results 71 to 80 of about 12,553 (221)

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

open access: yesActa Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi   +6 more
wiley   +1 more source

The influence of temperature on the development of Baltic Sea sprat (Sprattus sprattus) eggs and yolk sac larvae [PDF]

open access: yes, 2008
In spring 2004 and 2005 we performed two sets of experiments with Baltic sprat (Sprattus sprattus balticus Schneider) eggs and larvae from the Bornholm Basin simulating ten different temperature scenarios. The goal of the present study was to analyse and
A Llanos-Rivera   +43 more
core   +1 more source

Distillery dried grains with soluble from corn in diet of laying hens

open access: yesMedicina Veterinária, 2022
The objective of this study was to evaluate the different levels inclusion of corn DDG in the laying hens diet and its effects on the performance, egg quality, yolk pigmentation and economic analysis.
Tatiana Marques Bittencourt   +5 more
doaj  

Retinoic Acid Signalling Regulates Zebrafish Tooth Germ Repair Following Injury

open access: yesCell Proliferation, EarlyView.
Retinoic acid signalling may regulate the repair processes in a tooth germ injury model using Tg(scpp5:Dendra2‐NTR) zebrafish and the nitroreductase (NTR)/metronidazole (MTZ) system. ABSTRACT Although the role of retinoic acid (RA) signalling in odontogenesis is well established, its involvement in the repair of injured tooth germs remains unclear.
Qiqi Liu   +4 more
wiley   +1 more source

Changes in body composition and fatty acid profile during embryogenesis of quillback rockfish (Sebastes maliger) [PDF]

open access: yes, 2009
We investigated developmental changes in the body compositions and fatty acid (FA) profiles of embryos and preparturition larvae of the quillback rockfish (Sebastes maliger).
Rodgveller, Cara A., Sewall, Fletcher F.
core  

Axial muscle‐fibre orientations in larval zebrafish

open access: yesJournal of Anatomy, Volume 246, Issue 4, Page 517-533, April 2025.
In 4 days post‐fertilization zebrafish larvae, the fast axial muscle fibres follow helical trajectories that taper towards the tail. Adjacent muscle fibres form substantial angles relative to each other to accommodate this pattern. Using a novel semi‐automatic method, we quantified 3D fibre angles over the whole muscle volume.
Noraly M. M. E. van Meer   +3 more
wiley   +1 more source

Current Trends, Future Prospects and Constraints of Whole Microalgae and Their Fractions as a Functional Feed Ingredient for Animals

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Microalgae are a highly diverse group of unicellular organisms that grow in a wide range of aquatic environments and are widely used as dietary supplements for both human and animal applications. Microalgae are rich in lipids, proteins, carbohydrates and other valuable bioactive components such as pigments, antioxidants and vitamins.
Sietse Jan Koopmans   +4 more
wiley   +1 more source

Impact of increase in temperature and light intensity on development and metamorphosis of hatchery reared silver pompano Trachinotus blochii (Lacepede, 1801) larvae [PDF]

open access: yes, 2018
The largehead ribbonfish, Trichiurus lepturus Linnaeus, 1758 forms a major fishery along north-west coast of India comprising the two coastal states of Gujarat and Maharashtra. Diet composition was analysed for five years (2010-2014) to understand shifts
Anbarasu, M   +11 more
core   +1 more source

β-Apo-8′-Carotenal as an Egg Yolk Pigmenter

open access: yesPoultry Science, 1962
Abstract β -APO-8′-carotenal has been shown to be an effective pigmenter for coloring egg yolks in vivo (Steinegger et al., 1957; Bunnell and Bauernfeind, 1958; Bauernfeind and Marusich, 1959; Marusich et al., 1960a). It has also been shown to possess vitamin A activity (Euler et al., 1938; Glover and Redfearn, 1954).
R.H. Bunnell   +2 more
openaire   +1 more source

Intraspecific Variation in Reproductive Aspects of Female Soldier Crabs, Mictyris guinotae, Between the River Mouth and Upper Reach Habitats

open access: yesMarine Ecology, EarlyView.
ABSTRACT The soldier crab, Mictyris guinotae, is a dominant intertidal crustacean associated with sand flats in the vicinity of the Urauchi River estuary on Iriomote Island, Japan. We compared various aspects of its reproductive biology at two sites (the river mouth and upper reach) on exposed bare sand flats 300 m and 3000 m upstream from the mouth ...
Masaki Jinno   +3 more
wiley   +1 more source

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