Results 81 to 90 of about 887,351 (211)

Procurement of Senonian Flint for Bladelets Production at the Early PPNB Site of Nahal Zahal in the Northern Negev Established for the First Time Using Chemical Composition Analysis

Archaeometry, EarlyView.
ABSTRACT The hypotheses of Senonian flint to be a prime source of prehistoric “chalcedony” flint artefacts from the Negev Desert (Israel) was not investigated in detail thus far. By combining trace‐element profiling with statistical interpretation, ten flint items from Nahal Zahal, an Early Pre‐Pottery Neolithic B site in the northern Negev, were ...
Meir Finkel, Michal Birkenfeld, Talia Abulafia, Keren Weiss‐Sarusi, Olga Berlin, Yoav Ben Dor   +5 more
wiley   +1 more source

Genetic Parameters for Eggshell Traits in Ostriches

, 2012
1. A study was conducted on 14000 ostrich eggs to estimate genetic parameters for eggshell traits that could benefit the hatchability of ostrich eggs.
Malecki, I.A., Brown, Chris, Cloete, S.W.P., Brand, Z.   +3 more
core   +1 more source

Egg Chorion Morphology and Egg‐Laying Behaviour of Backswimmer Notonecta viridis Delcourt, 1909 (Heteroptera: Nepomorpha: Notonectidae)

Acta Zoologica, EarlyView.
ABSTRACT In this study, the egg‐laying behaviour and chorionic morphology of the eggs of the backswimmer Notonecta viridis Delcourt, 1909 (Heteroptera: Notonectidae) were described in detail using stereo, light and electron microscopy. Female N. viridis lays its eggs individually, horizontally attached to the surface. Eggs are elliptical, approximately
Hakan Özdamar, Selami Candan, Nurcan Özyurt Koçakoğlu, Hicret Arslan   +3 more
wiley   +1 more source

Hatching failure and embryo mortality in endangered populations of Eurasian Curlew (Numenius arquata)

Ibis, EarlyView.
Hatching failure represents a significant and growing barrier to reproductive success in threatened birds and yet is often poorly understood. Populations of the Eurasian Curlew Numenius arquata in the United Kingdom and Republic of Ireland have experienced significant declines over recent decades, and low breeding productivity is a major barrier to ...
Jamie Edward Thompson, Nicola Hemmings
wiley   +1 more source

Effect of chicken eggshell nanocalcium oxide supplement on quail eggshell quality (Coturnix coturnix japonica)

Jurnal Ilmu Peternakan Terapan
This study aims to evaluate the effectiveness of nanocalcium oxide derived from layer chicken eggshells as a feed supplement in improving the physical quality of quail eggshells (Coturnix coturnix japonica).
Inas Zhafira, Mohammad Anam Al Arif, Sri Pantja Madyawati, Budi Prasetyo, Agus Hadi Prayitno, Yong Tao, Merry Muspita Dyah Utami, Hadi Poernomo   +7 more
doaj   +1 more source

Optimization of Eggshell Calcium Use for Improving the Physical Quality of Whey Protein Isolate-based Edible Films [PDF]

BIO Web of Conferences
Edible films based on biopolymers are increasingly popular as environmentally friendly and functional food packaging alternatives. One approach to improving the physical properties of edible films is by incorporating calcium derived from eggshell waste ...
Evanuarini Herly, Susilo Agus, Rahayu Premy Puspitawati   +2 more
doaj   +1 more source

Spectral Transforms as a Tool to Optimize Digital Phenotyping in Biological Images

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Modern livestock breeding has mastered genotyping. Genome‐wide association studies, genomic selection, and SNP arrays enable genetic merit prediction at lower cost. However, phenotyping remains the bottleneck, as manual measurement is slow, expensive, subjective, and unable to capture spatial or temporal trait organization. Digital phenotyping
Joseane Padilha, Jose Victor Vieira Isola, Elsio Antonio Pereira de Figueiredo   +2 more
wiley   +1 more source

Eggshell Quality Traits and Transcriptome Gene Screening Between Yunnong and Jingfen Chicken Breeds

Biology
The eggshell quality traits in avian species, including Yunnong chickens (YN), are crucial for commercial and breeding purposes. The use of advanced biotechnologies, such as gene sequencing, has become increasingly common for identifying genetic markers ...
Zijian Li, Hao Wu, Jing Fu, Maida Mushtaq, Muhammad Khan, Yong Liu, Zobia Azeem, Hongmei Shi, Yang He, Ru Zhang, Muhammad Aziz Ur Rahman, Jiajia Kang, Changrong Ge, Kun Wang   +13 more
doaj   +1 more source

The Effect of Eggshell Quality on Hatchability of Pure Chicken Breeds

Scientific Papers Animal Science and Biotechnologies, 2023
Hatchability is affected by a variety of factors. Eggshell quality plays very important role among these factors. In this work we analysed eggshell quality, hatchability and embryonic mortality of pure chicken breeds New Hampshire, Oravka, Plymouth Rock,
Cyril Hrnčár, Dominik Gič, Jozef Bujko   +2 more
doaj  

3D transparent technology displays the developmental patterns of ductus arteriosus morphology in chicken embryos before and after birth

Journal of Anatomy, EarlyView.
At the eighth week of human embryonic development, 3D transparent imaging enables clear visualization of the outflow tract's morphological features, revealing its anatomical components in detail. Abstract The ductus arteriosus (DA) is a critical fetal vascular structure that shunts blood from the pulmonary artery to the aorta, bypassing the non ...
Conghong Xu, Lidi Li, Xiu Wu, Yanli Zhang, Chuanye Wu, Juan Chen, Haihua Gao, Zhenglai Ma   +7 more
wiley   +1 more source