On the weights of the abdominal and the thoracic viscera, the sex glands, ductless glands and the eyeballs of the albino rat (Mus norvegicus albinus) according to body weight

Abstract

TWELVE CHARTSComplete quantitative data on the various anatomical components of the body are important not only for the study of growth, but also for cross reference. A lack of such reference data interferes in many cases with a clear recognition of alterations which are taking place in the animal body under various experimental conditions. Fortunately the following data on the growth of the albino rat are already available:Growth of body in weight in respect t o age (Donaldson '06) and body length (Donaldson '09) ; weight of the brain and spinal cord (Donaldson '08) ; weight of total amount of blood and hemoglobin content (Chisolm 'll), the growth of the head, trunk, extremities, skin, skeleton, musculature and viscera in weight according to age (Jackson and Lowrey '12); and finally the growth of the dry substance in the albino rat (Lowrey '13). Besides these we have several other series of data on the albino rat, though not so comprehensive as those just cited.

Compensatory Growth and Other Growth Responses of the Kidney

“…k lies between 0.7 and 0.9 in most studies on male rats [2,45,67,130,320,396,423,499] and somewhat less in females [2,320,525]. The well-known K/B weight tables of Donaldson [140] were calculated from a more complex empirical formula derived by Hatai [212], Hatai's equation is very closely approximated by the power function, K = II.IB08' for one kidney. In some studies, however, the K/B ratio has been constant (i.e.…”

Ontogenetic and Evolutionary Allometry

“…Organ growth in the rat was studied in classical papers by Hatai (1913), Jackson (1913), and Donaldson and Hatai (1931) constants), giving a straight line in the log-log plot. The statistical evaluation of the data, including the calculation of the allometry exponent a, the integration constant b, the standard error S (J.r. oI.r z), and the correlation coefficient P, was made according to the method indicated by Brody (1945, p. 398 ff.).…”

The Mammogenic Hormones of the Anterior Pituitary. I: The Duct Growth Factor

“…The pituitary size of the male and female albino rat remain nearly the same until puberty, according to Hatai (1913). At maturity the female gland weighs 75 to 80 per cent more than that of the male.…”