A negative correlation between size and number of the erythrocytes of cows, sheep, goats and horses

TRAKYA BÖLGESİNDEK! NORMAL BOZ - ffiK İNEKLERİN HEMOGRAM

“…Bir kanda mevcut hemoglobin konsantrasyonu ya bol mıktarda küçük alyuvar, veya az mık-tarda büyük alyuvar ile t~ınır. Bilhassa inekte alyuvar büyüklüğü-nün hayvandan ha.yvana bariz farklar gösterdiği Holrnan (39) hemoglabin bUldu, Rusoff (71) yaz aylarında ısmın 80°F (27°C) den daha yukarı çık.. tığı zamanlarda Hb. mıktarının arttığını yazıyor.…”

The effects of stress upon erythrocyte resistance in pedigree clean, known carrier and dwarf beef cattle

“…The relation1bip noted by Holman (1952) same . In the.ir vork they eaployed the process rysta lography and showed that the heaoglobin froa .…”

“…The .. ny factor• which go together to compriae a given enviro .. eat undoubtedly are responsible for a large part of the variation co.nonly obeerved between group• of cattle. In a diacuaaion of thia aubject Holman (1955) reported aeveral cases in which red cell counts were effected by nutritio~l defects. Morrhon (1956) alao indicated that proper amounts of copper, iron and cobalt were necessary in order to aaintain normal hemoglobin and red cell levela.…”

“…Gant and Roo (1952) and Ho l man (1950) :;o observed some conditions in which t he t o a l erythrocyte count was elevated to above normal s tandar ds . Holman (1950) stated tha t an a bsolute increase in erythrocyt es could occur clu e to an over-compensa tion for some types of infect ion , b1, 1t Grs.n t and Root ( 1952 ) reported that many of the increas es wer e r elative and not of the a bsolute t ype. The mechanisms which t hey sugges t ed to account for this phenomenon were a decreased plasma vo l ume with an unaltered cell '!14&&, unequal distribution of red cells with the introduction of sampling errors and the emptying of reservoirs of sequested cells throughout the body.…”

“…Since these values were found to be useful in most determina• tions of erythrocyte resi s tanc e, s everal workers established standard ranges for various species of animals. Holman (1950) reported that cattle and hor es showed ini tial h lysis a t 0.55 per cent sodium chloride, but di d not exhib ' t c, µ l et breakdcnm until the solution reached 0 .40. Dukes ( 195 ) found the overall range for cattle to be slightly l arger t ha n ha t men i oned by Holman 1950) and recorded the reapective value• of 0.59 and 0.42 per c ent for the tvo levels .…”