scholarly journals The Relationship between Egg Shell Color and Incidence of Colored Meat Spots

1950 ◽  
Vol 29 (2) ◽  
pp. 244-247 ◽  
Author(s):  
F.P. Jeffrey ◽  
C.E. Walker
Keyword(s):  
Shell Color ◽  
Egg Shell ◽  
The Relationship

scholarly journals The Relationship of Egg Shell Color to Hatchability in New Hampshires

1949 ◽  
Vol 28 (4) ◽  
pp. 577-580 ◽  
Author(s):  
E.M. Funk ◽  
James F. Forward
Keyword(s):  
Shell Color ◽  
Egg Shell ◽  
Relationship Of ◽  
The Relationship

scholarly journals The Structure of the Insect Egg-Shell in Relation to the Respiration of the Embryo

1950 ◽  
Vol 26 (4) ◽  
pp. 327-334
Author(s):  
P. H. TUFT
Keyword(s):  
Rhodnius Prolixus ◽  
Gaseous Exchange ◽  
Insect Egg ◽  
Physical Conditions ◽  
Egg Shell ◽  
Gas Space ◽  
The Relationship ◽  
Sufficient Oxygen

1. The site of gaseous exchange in the eggs of Rhodnius prolixus (Stahl) is shown to be the rim of the cap which covers the anterior end of the egg. Most of the oxygen consumed by the embryo enters the egg through the micropyles and pseudomicropyles which penetrate the shell in this region. 2. The physical conditions necessary for the passage of sufficient oxygen through these pores is discussed. A continuous gas space under the shell--the presence of which can be deduced on theoretical grounds--is shown to exist in the Rhodnius egg. 3. The relationship between waterproofing and the permeability of the shell to oxygen is discussed.

scholarly journals The Influence of Rate of Production and Temperature on Egg Shell Color

1951 ◽  
Vol 30 (6) ◽  
pp. 815-817
Author(s):  
T.G. Culton ◽  
D.W. MacLaury ◽  
W.M. Insko
Keyword(s):  
Shell Color ◽  
Egg Shell

scholarly journals Egg Shell Color in Crosses Between White- and Brown-Egg Breeds

1944 ◽  
Vol 23 (4) ◽  
pp. 259-265 ◽  
Author(s):  
G.O. Hall
Keyword(s):  
Shell Color ◽  
Egg Shell

Ultrastructure of microfilarial sheath and its comparison with egg shell

1990 ◽  
Vol 48 (3) ◽  
pp. 494-495
Author(s):  
Lye Howe ◽  
Josephine Chun ◽  
Viqar Zaman
Keyword(s):  
Basement Membrane ◽  
Cross Section ◽  
Light Microscope ◽  
Brugia Malayi ◽  
Embryonic Cells ◽  
Stages Of Development ◽  
Broad Base ◽  
Egg Shell ◽  
Dense Projections ◽  
The Relationship

In this study the ultrastructure of the uterus of Brugia malayi and its contents were studied especially to reveal the relationship between the sheath of the microfilaria and the egg shell, as it is claimed that the egg shell ultimately forms the microfilairal sheath (Rogers et al, 1976).The cross section of the worm revealed a distinct cuticle, musculature, a single patent fut and paired uteri. The uterine contents were filled with eggs at various stages of development. Inside each egg were embryonic cells which corresponded to the so-called “nuclei” of microfilaria which are seen in the light microscope. The egg shell was discernable as a membrane with minute electron-dense projections on its surface. At higher magnification the egg shell was seen to consist of two structures - a homogenous basement membrane and electron dense projections which rested on it. These projections were found all around the egg shell and consisted of a broad base and a pointed anterior end.

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