American Association of Colleges of Nursing (AACN) - The Clinical Nurse Leader; American Association of Colleges of Nursing's White Paper on the Education and the Role of the Clinical Nurse Leader; American Association of Managed Care Nurses; American Board of Managed Care Nursing; AONE Institute for Leadership Research & Education
1 Female fleas cannot lay eggs until after their first blood meal and begin to lay eggs within 36-48 hours after that meal. 2  The female flea can lay 2,000 eggs in her lifetime.  The female flea consumes 15 times her own body weight in blood daily.
Pullets can start laying eggs around 16 to 32 weeks, depending on breed and other factors. Sometimes, when a pullet is just beginning to lay, she will produce tiny eggs about the size of a robinâs (sometimes called fairy eggs), that are not fully developed, and often do not have a yolk.