TITLE

Effect of Uniformity of Eggshell Thickness on Eggshell Quality in Chickens

AUTHOR(S)
Yi-Yuan Yan; Cong-Jiao Sun; Ling Lian; Jiang-Xia Zheng; Gui-Yun Xu; Ning Yang
PUB. DATE
July 2014
SOURCE
Journal of Poultry Science;Jul2014, Vol. 51 Issue 3, p338
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Numerous parameters have been proposed to evaluate eggshell quality in order to reduce losses from damaged eggshells. The uniformity of eggshell thickness (UET), as a newly proposed parameter, is defined as the reciprocal of the coefficient of variation of the eggshell thickness of multiple points on the eggshell surface. In this study, we further evaluated the relationship between UET and eggshell quality of eggs from Lohmann Brown layers. Three hundred and thirty fresh eggs from 40-week-old hens were collected. Egg weight, eggshell weight, eggshell thickness, shape index, and breaking strength were measured, and UET, static stiffness, fracture toughness, and elastic modulus were calculated. The relations hip between UET and other eggs hell quality parameters was analyzed. Results show that UET is positively correlated with eggshell thickness, breaking strength, static stiffness, and fracture toughness (r=0.297, 0.430, 0.409, and 0.171, respectively, P<0.01). In order to analyze the effect of UET on egg-shell quality, eggs were divided into three groups according to their eggshell thickness (thin, medium, and thick), and eggs within each thickness group were subdivided into three subgroups based on their UET (low, medium, and high). Relationship between UET and eggshell quality was analyzed. Result showed that eggs with higher UET in the thin group had higher breaking strength, static stiffness, fracture toughness, and elastic modulus than those with lower UET in the medium group, indicating that eggs with thinner but more uniform eggshells were stronger than those with thicker but less uniform eggshells. Our study suggested that UET has a significant influence on breaking strength, static stiffness, fracture toughness, and elastic modulus and should be included in evaluating eggshell quality.
ACCESSION #
97323033

 

Related Articles

  • Role of fine aggregates on mechanical properties of mortar. Shin, K.-J.; Lee, S.-C.; Kim, Y. Y. // Materials Research Innovations;Nov2015 Supplement, Vol. 19, pS8-690 

    As new types of cement-based composites that require properties other than compressive strength have been developed, the properties of the matrix need to be tailored considering the targeted performance of the composites. This study examines the effect of fine aggregates in the matrix on...

  • ANALYSIS OF THE DISSIPATIVE ENERGY PERFORMANCE IN THE PROCESS OF COMPACTION FOR STABILIZED EARTH THROUGH TECHNOLOGICAL VIBRATIONS. DOBRESCU, Cornelia-Florentina // Acta Electrotehnica;2019, Vol. 60 Issue 1/2, p114 

    This paper presents, in synthesis, the outcomes of the research on the experimental methods of soil stabilization with ecological substances in order to achieve some stable and durable structures using technological processes of compacting by vibration. As a result, based on the experimental...

  • Ion-linked double-network hydrogel with high toughness and stiffness. Wang, Jilong; Wei, Junhua; Su, Siheng; Qiu, Jingjing; Wang, Shiren // Journal of Materials Science;Aug2015, Vol. 50 Issue 16, p5458 

    In this paper, a facile one-pot method was developed to fabricate ion cross-linked calcium-alginate/poly(acrylamide) (PAAm) double-network hydrogels with excellent toughness and stiffness. In comparison to the sodium alginate/PAAm hybrid gel, the as-fabricated calcium-alginate/PAAm gel...

  • Research on the prediction of impact sound insulation to a homogeneous wall. Shangyou Wei; Xianfeng Huang; Zhixiang Zhuang; Junxin Lan // Applied Mechanics & Materials;2014, Vol. 744-746, p1593 

    In this paper, a theoretical model to evaluate impact sound transmission through a homogeneous wall is proposed. The model which is based on the Statistical Energy Analysis framework exhibits a system with room-wall-room. For the purpose to explore the mechanism of impact sound transmission...

  • Elastic properties of suspended black phosphorus nanosheets. Jia-Ying Wang; Yang Li; Zhao-Yao Zhan; Tie Li; Liang Zhen; Cheng-Yan Xu // Applied Physics Letters;1/1/2016, Vol. 108 Issue 1, p1 

    The mechanical properties of black phosphorus (BP)nanosheets suspended over circular holes were measured by an atomic force microscope nanoindentation method. The continuum mechanic model was introduced to calculate the elastic modulus and pretension of BPnanosheets with thicknesses ranging from...

  • Numerical Simulation of Influence of Aggregate-mortar Interface on Fracture Toughness of Concrete. ZHU, X. B. // Advanced Materials Research;2014, Issue 893, p577 

    To explore the feasibility of the approach of "interfacial toughening in concrete", the 2D concrete model which possesses the characteristic of random distribution of spherical aggregates was used to simulate the relations between interface material and toughness of concrete containing flexible...

  • Room temperature mechanical properties of natural-mineral-based thermoelectrics. Fan, Xiaofeng; Case, Eldon; Lu, Xu; Morelli, Donald // Journal of Materials Science;Nov2013, Vol. 48 Issue 21, p7540 

    Low cost, highly efficient thermoelectric materials for waste heat recovery applications can be made by combining the naturally occurring thermoelectric mineral tetrahedrite (CuZnAsS) and the synthetic compound CuSbS. To better utilize this material in waste heat harvesting applications, it is...

  • Environmental effects on initiation and propagation of surface defects on silicate glasses: scratch and fracture toughness study. Surdyka, Nicholas; Pantano, Carlo; Kim, Seong // Applied Physics A: Materials Science & Processing;Aug2014, Vol. 116 Issue 2, p519 

    The glass composition and surrounding environment can play an important role in the initiation and propagation of surface defects, which affect the practical strength of glass. We have studied how the environment and glass composition affect the tribological and indentation properties of...

  • Nanostructural Characteristics of Vacuum Cold-Sprayed Hydroxyapatite/Graphene-Nanosheet Coatings for Biomedical Applications. Liu, Yi; Huang, Jing; Li, Hua // Journal of Thermal Spray Technology;Oct2014, Vol. 23 Issue 7, p1149 

    Development of novel biocompatible nanomaterials has provided insights into their potential biomedical applications. Bulk fabrication of the nanomaterials in the form of coatings remains challenging. Here, we report hydroxyapatite (HA)/graphene-nanosheet (GN) composite coatings deposited by...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics