The Fertilization of a Chicken Egg

The Basic Reproduction Process Explained

Silver Laced Polish

As in all animals, the fusion of ovum and a sperm is how fertilization occurs. Then an embryo forms and develops into a new organism. The chicken is no exception; their eggs need to be fertilized in order to develop a chick.

A chicken will begin laying eggs between five and six months of age, until then she is called a pullet. However, climate, seasons, and other various factors do play a significant role in laying cycles.  Certain breed types are also included in the variances of  egg laying, first time or otherwise.  One thing for sure, when a pullet reaches sexual maturity she will lay eggs whether or not there is a rooster present.

Roosters [males] have reproductive organs which produce sperms that are released during mating.  The sperms enter the oviduct of the hen [female] and continues a nearly week long reproductive journey to meet the eggs. The sperms final destination is in the infundibulum. This is where they will wait about a week for the partially formed and unshelled eggs. If there is a yolk, the eggs are fertilized instantly. So, it’s safe to say you can expect fertile eggs seven to ten days after mating.

Note:  It is possible the hen may produce fertile eggs the following week as well.

When hens are in the presence of a rooster there is a way to separate the fertilized eggs from infertile by a technique called candling.  This method uses a bright light source behind the egg to show details through the shell. Fertilized eggs will show a darker yolk on one end, usually when they are one or two days old.  Within two to three days, if incubated, you may actually see indications of a growing embryo.

 

Advertisements

The Distictive Types of Chicken Combs

Below: Rooster Combs

What is the comb’s function? Learn about combs and wattles HERE

Further Learning:
The Chicken’s Comb by Dave Anderson from the February/March, 2008 issue of Backyard Poultry.

Chicken Keeping in Phoenix, is it Legal?

Are Chickens Allowed in Phoenix   Yes
Max Chickens Allowed     20
Roosters Allowed     No
Permit Required     No
Coop Restrictions:     80 feet from residence-ZONING ORDINANCES APPLY
City/Organization Contact name:       City of Phoenix Ordinances

Read on, especially between the lines…

Sec. 8-7. Poultry and rodents.

(a)  Except as otherwise provided in the article, it is hereby declared to be a nuisance and it shall be unlawful for any person to keep rodents or poultry within the City. No poultry or rodents shall be kept in an enclosure within eight feet of any residence within the City. Poultry may be kept within eighty feet of a residence if written permission consenting to the keeping of poultry less than eighty feet from a residence is first obtained from each lawful occupant and each lawful owner of such residence. Poultry shall not be kept in the front yard area of any lot or parcel with the City. Poultry and rodents shall be kept in an enclosure so constructed as to prevent such poultry and rodents from wandering upon property belonging to others.

(b)  No more than twenty head of poultry nor more than twenty-five head of rodents nor more than twenty-five head comprising a combination of rodents and poultry shall be kept upon the first one-half acre or less. An additional one-half acre shall be required for each additional twenty head of poultry or for each additional twenty-five head of rodents or for each additional twenty-five head comprising a combination of poultry and rodents. For areas larger than two and one-half acres the number of poultry or rodents shall not be limited.

(c)  No male poultry shall be kept within the City limits except such male poultry as are incapable of making vocal noises which disturb the peace, comfort, or health of any person residing within the City.

(d)  All such enclosures shall be kept in such condition that no offensive, disagreeable, or noxious smell or odor shall arise therefrom to the injury, annoyance, or inconvenience of any inhabitant of the neighborhood thereof.

 

The Farm Roosters

Come & Gone….

There are always roosters in the hatch, although they are an unwelcome guest on the ranch, all have been, and will continued to be re-homed.