Alfalfa eVectively induced molt in both trials, as the
weights of the ovaries, oviducts, and livers of the alfalfa
hens were comparable to that of the feed deprived hens.
Likewise, similar trends in serum chemistry (increases in
ketone bodies and cholesterol; decreases in calcium and
magnesium) observed in both the alfalfa and feed deprived
hens suggest that similar physiological changes are occurring
during the molting trials. However, immune cell population
diVerences as well as diVerences in uric acid levels
seen between the alfalfa and feed withdrawal hens, suggests
that there are physiological diVerences between the two
treatment groups. Further, research that monitors daily
physiological, immunological and hormonal changes in
birds during the entire molt period as well as behavior
responses will help to further elaborate on the level of stress
experienced by birds fed alfalfa.