Michael P. Natt

TL;DR: Hematological studies on chickens have long been hampered by the lack of a quick, readily applicable, and quantitative method for the enumeration of the leucocytes due to the fact that the nuclei of bird erythrocytes are not destroyed in the usual procedure for mammalian blood cell enumeration and therefore cannot be distinguished from theLeucocytes.

TL;DR: In this article, the authors show that the most noticeable symptom of coccidiosis is the hemorrhage that occurs in the infected cecal mucosa when the second-generation merozoites approach maturity, which is the result of pinching off of mucosal capillaries by pressure resulting from enlargement of epithelial cells in which the intracellular parasitic development has been taking place.

TL;DR: Eimeria tenella infection causes marked changes in the leukocyte picture during the course of an infection, and a marked leukocytosis began on the 7th day and persisted through the recovery phase of the disease.

TL;DR: Any increase or decrease in the total plasma volume of the animal can be reflected in the erythrocyte count or the hematocrit value even though the total ery Throcyte number of theAnimal remains constant.

TL;DR: Studies in this laboratory on the leucocytes of chickens reveal that, contrary to the generally accepted descriptions of the heterophil, the shape of the granules of this cell shows extreme variation, from rod-shaped or spindle-like, to a definite spherical shape.