Eggs of hen, Biology

Assignment Help:

EGGS OF HEN

  • It is a meiolecithal egg which is oval. The animal pole is found in the form of a small germinal disc.
  • The vegital pole has two types of yolk viz. White yolk & Yellow yolk.
  • The white & yellow yolk are found in alternate concentric rings. The outermost ring is of white yolk.
  • The central part of the vegital pole is flask shaped & contain white yolk. It is called as Latebra. The narrow part of the latebra is called as neck of latebra.

2423_eggs of hen.png

  • The white yolky region just below the germinal disc is called as nucleus fo pondar.
  • The yellow yolk is more viscous than the white yolk.
  • The innermost egg membrane is vitelline membrane which is followed by a chalazeal layer. The chalaza membrane form chalaza on both the sides. The chalaza is a spiral cord which always keeps the germinal disc upside.
  • The chalazeal layer is followed by three layers of albumin which are called as inner, middle & outer layer of albumin. The middle albumin layer is comparatively thicker.
  • There are two shell membranes outside the albumin layers which are called as outer & inner shall membranes. Both the shell membranes remain fused except in the broad region where they enclose an air space. The O2 present in the air space is used by the embryo during emergency.
  • The outer most egg membrane covering is called as shell which is madeup of CaCO& it is porous. It is permeable to gases but impermeable to water.
  • The oviduct of hen consists of three parts viz. magnum, isthmus & uterus.
  • The magnum secretes chalazeal layer & albumin layers.
  • The isthmus secrets the shell membranes.  The shell glands of the uterus secrete the shell.

Related Discussions:- Eggs of hen

What body system hiv impairs, Given that most AIDS victims die from overwhe...

Given that most AIDS victims die from overwhelming infections or rare types of cancer, what body system do you think HIV (the AIDS virus) impairs?

Define eggs as a rich source of protein, Define Eggs as a rich source of pr...

Define Eggs as a rich source of protein? Roughly, the chicken egg consists of 11% shell, 31% yolk and 58% white. Liquid whole egg consists of 65% white and 35% yolk. The primar

Phylum Coelenterata, What are the classes in Phylum coelenterata?

What are the classes in Phylum coelenterata?

Breathing or ventilation, VENTIL A TIO N OR BREATHING - 15-16 / mi...

VENTIL A TIO N OR BREATHING - 15-16 / minute (In Rabbit 36-38). In children 35 / 1 minute. 1 .      INSPIRATION In take of air is known as inspiration. First o

Endoplasmic reticulum, ENDOPLASMIC RETICULUM It is also known as Endosk...

ENDOPLASMIC RETICULUM It is also known as Endoskeleton of the cell, Endomembranous system of the cell. Garnier (1897) first observed them and called Ergastoplasm. E.R.

Determine general principles of allergy management, Determine General Princ...

Determine General Principles of Allergy Management? The four general principles of allergy management include: 1.  Avoid factors that cause symptoms. 2.  Use appropriate

Ctenophora.., Ask queAffinities of ctenophora with platyhelminthesstion #Mi...

Ask queAffinities of ctenophora with platyhelminthesstion #Minimum 100 words accepted#

Cardiac output and its determination, The cardiac output is the volume of b...

The cardiac output is the volume of blood pumped from the heart every minute. It is obtained by the volume pumped with each beat (stroke volume) multiplied by the heart rate. The c

Closed type of circulatory systems, Closed Type of Circulatory Systems ...

Closed Type of Circulatory Systems Some non-chordates, like cephalopods (octopuses, squids), earthworms, polychactes and all vertebrates have a closed circulation along with b

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd