Allometric growth of spleen and liver in black-white bovine fetuses (Bos primigenius f. taurus).

Abstract

Growth relationships between spleen and liver weights and body weight and CR length as well as between weights of liver and spleen in fetuses (145 males, 141 females) of black-white cattle. According to their body weights, the fetuses were divided into 4 growth groups: I, to 1000 g; IIa, 1000-3490 g; IIb, 3500-7990 g; III, over 8000 g. The relationships were described using appropriate allometric growth equations (log Y = b log X + A) derived both for individual groups and for the entire fetal period. Relative weights of the organs studied and the liver-spleen coefficient (L/S) were determined as well. The results are presented in equations, tables, and graphs.