The adaptation of the poultry industry to accommodate the needs of large scale production has resulted in the division of the industry into specialized units of meat and egg production. Egg production constitutes the major phase, from the aspect of both the percent of the total investment in the industry which is devoted to it and the number of flocks that is kept for egg production. It is to be expected then, that research study in the poultry field has until recently been devoted mainly to the problems associated with large-scale egg production. [...]

Iodine assumed biological significance some one hundred years ago when it was shown by Chatin that a condition now known as exophthalmic goiter was due to a deficiency of this element. Since that time the accumulated evidence indicates that the only biological function of this element is its role as a constituent of the thyroid gland secretion.

The demand for poultry meats and eggs as a human food is the great stabilizing factor for the permanency and profit of the poultry industry. To maintain this demand, poultry products must exhibit excellent food value and appealing appearance. In dealing with the fresh egg industry the maintenance of superior quality depends to a large extent upon the quality of the shell encasing the egg. Any malformation of the eggshell, while it may not be serious enough to lead to a more rapid deterioration of the contents, detracts from consumer appeal, a necessity in modern sales programs.

[No abstract available] / Land and Food Systems, Faculty of / Graduate

[No abstract available] / Land and Food Systems, Faculty of / Graduate

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