Results 81 to 90 of about 12,298 (226)

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

open access: yesInsect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami   +2 more
wiley   +1 more source

Egg Yolk Color as Influenced by Xanthophyll and Feedstuffs Containing Related Pigments

open access: yes, 1962
The economics of egg marketing demand new and more equitable methods of distributing eggs and egg products into the various marketing channels.Recent improvements have been made in keeping quality and uniformity of egg yolk color. Although there has been
Holleman, Kendrick Alfred
core  

Biofortified orange corn increases xanthophyll density and yolk pigmentation in egg yolks from laying hens

open access: yes, 2021
: Plant breeding has developed corn genotypes with grain higher in levels of carotenoids. Dietary consumption of specific carotenoids by humans has been associated with improved eye health, notably with some protection against age-related macular ...
Darrin M. Karcher   +8 more
core   +1 more source

Limited Utility of a Test‐Yolk Buffer Semen Extender for Preserving Human Semen Parameters for Use in a Diagnostic Setting

open access: yesAndrology, EarlyView.
ABSTRACT Background Identification of a preservation medium that accurately retains semen parameters would be advantageous for men requiring semen analysis by allowing them to produce sperm samples at home rather than on site or even facilitate ‘mail order’ semen analysis.
Alessia Schadwell   +5 more
wiley   +1 more source

Possibility of Using Astaxanthin-Rich Dried Cell Powder from Paracoccus carotinifaciens to Improve Egg Yolk Pigmentation of Laying Hens

open access: yes, 2020
The study investigated egg quality aspects such as astaxanthin concentration, E/Z-isomer ratio, and yolk color in laying hens fed with astaxanthin-containing diets. Dried Paracoccus carotinifaciens cell powder (Panaferd-AX) and fine cell powder (Panaferd-
Masaki Honda   +5 more
core   +1 more source

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

Performance and egg quality of laying hens fed with mineral sources and rosemary oil

open access: yesAnais da Academia Brasileira de Ciências, 2019
In order to evaluate the effect of rosemary oil and micro mineral sources on the performance and egg quality of laying hens, 288 hens were used and distributed in a completely randomized design using a 2x3 factorial (mineral sources x rosemary oil) with ...
ELIS REGINA DE M. GARCIA   +4 more
doaj   +1 more source

Laboratory Biology, Immature and Adult Morphology of Trichopria drosophilae (Perkins) (Hymenoptera: Diapriidae), Parasitoids of Drosophila Flies

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
This study investigates the laboratory biology and morphology of the parasitoid Trichopria drosophilae, which targets Drosophila flies, including the invasive Drosophila suzukii. Key findings include a detailed description of the parasitoid's egg, three larval instars, and pupal stage, as well as unique behaviors such as siblicide and encapsulation in ...
Alex Gumovsky   +3 more
wiley   +1 more source

Use of an additive canthaxanthin based and annatto extract in diets of laying hens and its effect on the color of the yolk and the egg shelf life

open access: yes, 2015
The aim of this study was to evaluate the use of an additive canthaxanthin based and annatto extract (Bixa orellana L.) in diets of laying hens and its effect on the color of the yolk and the egg shelf life.
Rojas, Víctor   +2 more
core   +2 more sources

Egg quality characteristics of sussex chickens reared under the housing conditions of Cukurova University farm [PDF]

open access: yesBIO Web of Conferences
This work was conducted to evaluate the egg quality characteristic of Sussex multi-purpose chickens reared under the housing conditions of the Cukurova University Farm.
Kurşun Kadriye   +2 more
doaj   +1 more source

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