Results 31 to 40 of about 158,029 (334)
Study on eggs of Japanese quail (Coturnix coturnix japonica) during incubation in the controlled laboratory conditions [PDF]
, 2012 Study on newly laid eggs of Japanese quail Coturnix coturnix japonica was undertaken for a period of 18 days on incubation in controlled laboratory conditions.
Bhagat, R. A. Patil +2 more
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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
The shaping effect of collimated fast outflows in the Egg nebula
, 2008 We present high angular resolution observations of the HC$_3$N J=5--4 line from the Egg nebula, which is the archetype of protoplanetary nebulae. We find that the HC$_{\rm 3}$N emission in the approaching and receding portion of the envelope traces a ...
Audinos +14 more
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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
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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
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
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
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Egg parameters of the Red Wattled Lapwing (Vanellus indicus) in agricultural ecosystem of Punjab [PDF]
, 2017 The Red Wattled Lapwing is an important bird of the agro-ecosystem of the Punjab state, feeding on insects, seeds and nectar. The present study was carried out to gather information on the egg parameters (morphometry and its components), which is lacking
Kaur, Manpreet, Khera, K. S.
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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
Czech Journal of Animal Science, 2016 Two experiments conducted on laying hens, aged 50 and 52 weeks, were carried out to evaluate the effect of dietary Mg and its relationship to the Ca : NPP (non-phytate phosphorus) ratio using a various grain-size of limestone.
M. Skřivan +5 more
doaj +1 more source