Results 11 to 20 of about 20,823 (188)

Translucent in air and iridescent in water: structural analysis of a salamander egg sac [PDF]

Soft Matter, 2020
3D photonic structure in the egg-sac envelope of Hida salamanders causes visible iridescence in water and UV iridescence in air.
Aleksandra V. Zabuga, Marcelle I. Arrigo, Jérémie Teyssier, Sébastien R. Mouchet, Kanto Nishikawa, Masafumi Matsui, Miguel Vences, Michel C. Milinkovitch   +7 more
openaire   +5 more sources

A comprehensive embryonic staging series of the turtle Trachemys scripta. [PDF]

Dev Dyn
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 ...
Noravian CM, Rand PG, Mahomed A, Rickard A, Juvera OD, de Bellard ME, Ezin M.   +6 more
europepmc   +2 more sources

Comparison between different breeds of laying hens in terms of eggshell translucency and its distribution in various ends of the eggshell

Poultry Science, 2021
: Eggshell translucency is a ubiquitous external eggshell quality problem caused by variations of eggshell ultrastructure or shell membrane. In previous studies, researchers have widely investigated this phenomenon with nutritional, environmental, and ...
Han-Da Zhang, Xin-Fa Zhao, Zi-Zhen Ren, Ming-Qi Tong, Jun-Nan Chen, Shuai-Ying Li, Hui Chen, De-He Wang   +7 more
doaj   +1 more source

Effects of trace minerals source in the broiler breeder diet and eggshell translucency on embryonic development of the offspring

Poultry Science, 2023
: In 2 experiments, interactions between trace mineral (Zn, Mn, Cu, Se) source (organic or inorganic) in the broiler breeder diet and egg translucency (high or low) on egg characteristics and embryonic development were investigated.
Henry van den Brand, Timo Hubers, Ilona van den Anker, Cibele A. Torres, Emily Frehen, Monique Ooms, Joop Arts, Bjorge F.A. Laurenssen, Marcel J.W. Heetkamp, Bas Kemp, Roos Molenaar   +10 more
doaj   +1 more source

Research progress on bird eggshell quality defects: a review

Poultry Science, 2023
: The eggshell quality declined with extending of chicken laying cycles. Eggshell quality is a crucial feature that not only affects consumer preference, but also influences producers’ economic profitability.
Xue Cheng, Zhonghua Ning
doaj   +1 more source

Effect of translucency and eggshell color on broiler breeder egg hatchability and hatch chick weight

Poultry Science, 2023
A successful hatch has a considerable economic impact on all poultry companies. The aim of the current study was to describe the possible effects of shell translucency (T score) and coloration lightness (L* value) on shell thickness, hatchability, and chick weight. A total of 4,320 eggs from 4 commercial Ross 708 breeder flocks (50-55-wk old) were used.
Leticia Orellana, Duarte Neves, James Krehling, Raquel Burin, Patricia Soster, Leopoldo Almeida, Andrea Urrutia, Luis Munoz, Cesar Escobar, Matthew Bailey, Bernardo Chaves-Cordoba, Chance Williams, Marco Rebollo, Ken Macklin   +13 more
openaire   +3 more sources

Estimation of genetic parameters of eggshell translucency and production traits in different genotypes of laying hens

Poultry Science, 2023
: The translucency of eggshells is a ubiquitous appearance problem caused by moisture translocation and the accumulation of egg contents into the eggshell ultrastructure.
Geng-Yun Liu, Lei Shi, Yi-Fan Chen, Hui Chen, Cheng Zhang, Yi-Tong Wang, Zhong-Hua Ning, De-He Wang   +7 more
doaj   +1 more source

Effect of 25-hydroxyvitamin D and essential oil complex on productive performance, egg quality, and uterus antioxidant capacity of laying hens

Poultry Science, 2021
: This study was conducted to determine the effect of 25-hydroxyvitamin D (HDV) and essential oils (EO) on the uterus antioxidant capacity, egg quality, and eggshell ultrastructure in laying hens.
Pinyao Zhao, Lei Yan, Tao Zhang, Huadong Yin, Jingbo Liu, Jianping Wang   +5 more
doaj   +1 more source

Additional information on the reproductive biology and development of the clausilial apparatus in Pontophaedusa funiculum (Mousson, 1856)(Gastropoda, Pulmonata, Clausiliidae, Phaedusinae) [PDF]

Malacologica Bohemoslovaca, 2010
The present paper gives additional information on the reproductive biology and describes the development of the clausilial apparatus (CA) of the clausiliid land snail Pontophaedusa funiculum (Mousson, 1856).
Barna Páll-Gergely
doaj   +1 more source

Egg Production in the Boxelder Bug \u3ci\u3eBoisea Trivittata\u3c/i\u3e (Hemiptera: Rhopalidae) [PDF]

, 2018
Boxelder bug females emerged from overwintering sites in the spring and rapidly provisioned eggs with yolk materials. Five discrete egg stages were identified based on egg size, protein content, and degree of chorion sclerotization.
Grimnes, Karin A, Miller, Deborah, Wyman, Aaron J   +2 more
core   +2 more sources