This really depends on what you mean by "egg production". If you mean the actual development of the egg in the ovary, this begins during embryonic development (i.e. while the female baby is developing in utero). Human females are born with every egg (or ovum) that they will ever have. These eggs are held in a kind of "stasis" until puberty, when they fully mature during the menstrual cycle and are released from the follicle.
They are born with them.
If the immature egg cell does not mature because their body has a stalled or halted production of the sex hormones that enable meiosis to resume.
The fastest swimming sperm is the one that reaches the female's egg first, and on entering, will cause the egg to be fertilised and so begin the process of reproduction.
Oogenesis (misspelled as oogenesis) is the creation of an egg cell. The benefit of uneven production of gametes in oogenesis is one haploid cell gets the majority of the nutrients.
spermatogenesis
The most immediate external effect of an egg being fertilized, is that a change occurs in the egg such that it either repels all other sperm, or at least is no longer accessible to them.
chicken's begin laying eggs when it is a layer and for egg production purposes,,, it lays egg between 42 days to its production life span.. but the produce in the first year would be lesser in the next year of production... and some factors may also affect its laying age,,, it does also vary with its type or kind of breed.... the feed ration given to the birds are also in consideration... the type of house where they are housed and the temperature of the area...
egg
Egg production in the United States during 1998 was over 79.9 billion
its shines into the egg for the little babys chickens
Most pullets will begin laying eggs at about 16 to 24 weeks. Egg production peak before age 2 and drop from there. Most hens will stop production at around age 3 with only the occasional egg offered after that. There have been reports of hens laying well past 5 years old but these are exceptions rather than normal.
Egg production in the United States during 1998 was valued at $4.35 billion dollars
Egg and broiler production means that you are rearing chicken for eggs and also for meat. This is modern poultry farming.
The Production Budget for Jersey Girl was $35,000,000.
The Production Budget for What a Girl Wants was $25,000,000.
The Production Budget for Tank Girl was $25,000,000.
The Production Budget for Birthday Girl was $13,000,000.
The Production Budget for Girl 6 was $12,000,000.