Results 1 to 10 of about 154,587 (305)
Acetic and formic acids emitted from wood samples and their effect on selected materials in museum environments [PDF]
, 2010 The concentrations of acetic acid and formic acid vapours emitted by a number of wood samples held in sealed environments were measured to assess differences between hardwood and softwood species.
Gibson, L.T., Watt, C.M.
core +1 more source
Parasitology, 1980 SUMMARYThe transmission of parasites often involves a high mortality of free-living stages in the environment outside the host. This may be offset by a high biotic potential. In addition, adaptations of nematode eggs and larvae that ensure their survival or increase their chances of infecting a host will reduce the potential wastage rate.
openaire +2 more sources
Food Science of Animal Resources, 2017 This study aimed to determine the optimal ratio of natural calcium powders (oyster shell and egg shell calcium) as synthetic phosphate replacers in pork products. Ground pork samples were subjected to six treatments, as follows: control (−) (no phosphate
Min Guk Cho, Su Min Bae, Jong Youn Jeong
doaj +1 more source
Subtle Egg‐Shell Membrane Structures in Birds’ Eggs [PDF]
Molecular Reproduction and Development, 2019 In 1695 the Italian anatomist and physician Lorenzo Bellini published an account of the ‘airways’ in birds’ eggs. Bellini suggested that these structures — that appear as dark channels running between the inner surface of the eggshell and the shell membranes, from the pointed to the blunt end of the egg — were connected to the eggshell pores and ...
Tim R. Birkhead, M. Attard, A. Pilastro
openaire +1 more source
Geometrical characteristics of eggs from 3 poultry species
Poultry Science, 2021 We studied the correlations between egg geometrical parameters (i.e., egg shape index, sphericity, geometric mean diameter, surface area, and volume) and eggshell qualities, or the organic matrix in eggshell.
L.C. Wang +8 more
doaj +1 more source
Genetic variation in eggshell crystal size and orientation is large and these traits are correlated with shell thickness and are associated with eggshell matrix protein markers [PDF]
, 2012 The size and orientation of calcium carbonate crystals influence the structure and strength of the eggshells of chickens. In this study, estimates of heritability were found to be high (0.6) for crystal size and moderate (0.3) for crystal orientation ...
Ahmed +28 more
core +1 more source
Comparison of two Different Breeding Systems of Laying Hens in Relation to Egg Shell Quality
Scientific Papers Animal Science and Biotechnologies, 2023 The aim of work was to follow up and statistically evaluate the selected quality indicators of egg shell according to two different breeding systems and different age of laying hens.
Mária Angelovičová +3 more
doaj
Isolation and identification of duck egg-borne bacteria and their antibiogram profile
Journal of Advanced Veterinary and Animal Research, 2018 Objective: The present study was aimed to isolate and identify the egg-borne bacteria from different parts of duck eggs such as egg shell (outer and inner), yolk and albumen, and to assess the anti-biogram profile of the isolated bacteria. Materials and
Fateha Akther Ema +3 more
doaj +1 more source
Duck fleas as evidence for eiderdown production on archaeological sites [PDF]
, 2015 Acknowledgements This project was undertaken as part of my doctoral studies funded by the Commonwealth Scholarship Commission (CACR-2009-39) in the United Kingdom.
Forbes, Veronique
core +1 more source
The Scientific World Journal, 2014 The goal of this study was to measure the thickness of egg shells without any contact and by utilizing a nondestructive method that sends infrared light beam on the egg.
Metin Sabuncu, Mete Akdoğan
doaj +1 more source