Vitamins and development

摘要

The supply of adequate levels of vitamins in the maternal diet is critical in ensuring that sufficient are available for embryonic development and subsequent emergence of a healthy viable hatchling. There are many factors that can affect the hatchability of fertile eggs from egg storage and hygiene to incubation and disease and not least flock age and nutrition. The use of egg break-out can help establish the cause of embryonic mortality and although recognised vitamin deficiency symptoms are seldomseen, occasional field abnormalities appear, that do not respond to additional supplementation -'clubbed-down' and riboflavin being a recent example.