Abstract
The location and the content of acid mucopolysaccharides and mast cells in the bovine uterine wall were investigated during various stages of the sexual cycle. The histochemical location of the acid mucopolysaccharides revealed variations in the hue of the colour complex at different stages of the sexual cycle in various layers of the bovine uterine wall. This finding correlated with biochemical determination of the total amount of acid mucopolysaccharides and the hyaluronate fraction. Morphological examination mast cells revealed their presence in greater number than was previously reported. Numerical variations of mast cells during the sexual cycle were noted and were parallel to the stainability and biochemical values, indicating hyaluronate.