depenttion.
Fer eansaple, cfmical studies have
shown that following radium depesition m bens,
atyprcal eussens tisey is formed is conseline
hone. These formations appear ss srene of iacreased density in mentgenegreas (8).
It 1s difiewk te imterpret the amomaly in the
pig, described above, and the dense trabecular
hone in beth the pig and chicken. No normal
controls are available for
ison
with these
animals, and the history of the animals from the
time of exposure to the time of collection is
not known. Severe dietary changes and disease
also produce changes in the pattern of deposition of osseous tissue, and such changes are often
indistinguishable from changes produced by
exposure to radiation.
5.44 Pachology
Sections of lung, liver and tibia, as well as
thyroid and other endocrine organs of most of
the fowl and pigs dying spontaneously or sac-
rificed, were prepared.
A few pathological
changes were found including an aplastic marrow inone duck.
However, none of the changes
could definitely be ascribed to radiation. Sections of bone examined by Lisco at the ANL
also indicuted no detectable pathological
changes.
5.45 Egg Production in Chickens
In birds, extraordinary demands are made on
the calctum metabolism in the production of
egy hell. It was, therefore, of particular interest to observe, during the provess of egy production, the metabolism of thoae internally de-
posited radioelements which are metabolically
Proves 5.4.—latoradiagreph
baby (chick
(aNbi
osacrifierd
pie
of tihia and
duya
femur of
puatl-defonation
sinilar te calerum,
Forty-four days after detonation, a group of
hens from Rongelap began laying eggs for the
first time since their collection. During the
next month and a half, 319 eggs were laid by
Ey hens. All of the eggs were normal, except
for two eygs from one hen which were laid
without shells. The shells were complete,
smooth and of normal shape.
The weights of
the eggs ranged from %) grams to 44 grams,