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Unformatted text preview: Instead of light entering the eyes, light impacts the brain through the skull and sends a signal to the hypothalamus. Hormones are then secreted to regulate ovarian function. 4. Estrogen affects the liver of the hen by increasing its size through the production of yolk precursors. The liver may look pale, and will increase in content for the production of lipids. 5. Persistency of lay refers to the consistency of laying eggs in a sequence of days. A hen with a high persistency of lay will produce many eggs in a set number of days before any pauses....
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This note was uploaded on 04/26/2008 for the course POSC 1023 taught by Professor Emmert during the Fall '06 term at Arkansas.
- Fall '06