Results 71 to 80 of about 4,714 (194)

Chromosome‐scale genome assembly of the South American fruit fly, Anastrepha fraterculus sp.1

open access: yesInsect Science, EarlyView.
Anastrepha fraterculus sp. 1 is a major fruit fly pest in Argentina, currently controlled through chemical treatments and traps. This study aims to enhance the genomic understanding of this species to support the development of sterile insect technique as well as the use of innovative technologies.
Máximo Rivarola   +15 more
wiley   +1 more source

The Transfer of Carotinoid Pigments to the Egg Yolk

open access: yesPoultry Science, 1945
Abstract EARLY work of Palmer and Kempster (1919 a, b) indicated that no carotinoid pigment other than that in the feed was deposited in the yolk. Some pigment continued to be deposited in the yolks from hens on a diet of extremely low carotinoid content. These workers concluded that such residual pigment was not carotinoid in nature and the quantity
B.B. Bohren, C.R. Thompson, C.W. Carrick
openaire   +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

Optimizing xanthophyll concentrations in diets to obtain well-pigmented yolks

open access: yesJournal of Applied Poultry Research, 2014
SUMMARY The color of the egg yolk depends on the absorption and deposition of the carotenoids in the hen diet and represents a visual characteristic of great effect on the product acceptance. Corn is commonly used as an energy value ingredient for the hen diet formulations, but its pigmenting potential should also be considered for egg yolk color.
Sandeski, Ligia Mara   +2 more
openaire   +2 more sources

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

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

Morphological Investigation of Larval Development in Maylandia estherae (Konings, 1995), an Endemic Cichlid Species of Lake Malawi

open access: yesActa Natura et Scientia
This study investigates the morphological aspects of larval development in Maylandia estherae, an endemic cichlid species from Lake Malawi. Larvae obtained from mature broodstock were sampled daily from hatching until the juvenile stage, and their ...
İhsan Çelik, Pınar Çelik
doaj   +1 more source

Zebrafish as a model for Catel–Manzke syndrome—identification and characterization of the zebrafish TGDS ortholog

open access: yesThe FEBS Journal, EarlyView.
Zebrafish Tgds, when expressed as a recombinant protein, catalyzes the dehydration of UDP‐D‐glucose, the initial step in the formation of 6‐deoxyhexoses. Corresponding Tgds mutations found in Catel–Manzke syndrome patients lead to reduced enzymatic activity and stability.
Maria Rosaria Coppola   +11 more
wiley   +1 more source

Pearl millet utilization in ccommercial laying hen diets formulated on a total or digestible amino acid basis

open access: yesBrazilian Journal of Poultry Science, 2005
An experiment was carried out to evaluate the effect of replacing corn with pearl millet in commercial layer diets, formulated according to the minimal requirements for total and digestible amino acids.
RS Filardi   +5 more
doaj   +1 more source

Reproduction and embryonic development of monkeyface prickleback Cebidichthys violaceus in captivity

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding the sequence of embryonic and larval development and the factors necessary to induce reproduction in captivity are critical for developing new species for commercial or conservation aquaculture. In this study, we describe the adult reproductive behaviours and development of eggs, embryos and early larvae of captive monkeyface ...
Kevin D. Hinterman   +3 more
wiley   +1 more source

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