Erythrocytes of thoroughbred horses in the after-birth hemolytic physiological process

Medeiros, L.F.; Medeiros, L.O.; Barcelos, Sílvia; Reiner, U. R.

doi:10.1016/0300-9629(81)90399-6

Cited by 4 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A significant placental blood transfusion also occurs in foals immediately after birth and may account for the transient increase in packed cell volume reported at 30 to 45 mins post partum (Kitchen and Rossdale 1975 ;Rossdale and Ricketts 1980). Medeiros et al(1981) have attributed much of the decrease in packed cell volume during the first week post partum to a physiological destruction of erythrocytes. The decrease in haptoglobin in many of the foals at one week old in the present study is consistent with the occurrence of some degree of intravascular haemolysis (Harvey and Gaskin 1978).…”

Section: Discussionmentioning

confidence: 99%

“…Serum iron and iron binding capacities were measured to assess the possibility that iron deficiency might be contributing to the development of lower packed cell volume and mean corpuscular volume in foals compared to adult horses. Serum haptoglobin was measured to determine whether some degree of intravascular haemolysis might be occurring during the phase of rapid post natal decrease in packed cell volume (Medeiros, Medeiros, Barcelos and Reiner 1981).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Haematology of foals up to one year old

Harvey

Asquith

McNulty

et al. 1984

Equine Veterinary Journal

View full text Add to dashboard Cite

Summary Packed ceil volume, haemoglobin concentration, erythrocyte counts, erythrocyte indices, serum iron, iron binding capacities, total and differential leucocyte counts, platelet counts, total plasma protein, fibrinogen, haptoglobin and icterus index values were determined at 14 different ages in eight Thoroughbred and 14 Quarterhorse foals during the first year of life. Absolute neutrophil numbers in blood decreased and lymphocyte numbers increased during the first months. Absolute eosinophil numbers tended to increase until three months old. Haemoglobin concentration and packed cell volume decreased significantly during the first two weeks and generally stayed in the lower portion of adult horse normal ranges during the remainder of the first year. Mean cell volume decreased to minimum values at approximately four months and then gradually increased. Serum iron was high at birth and decreased rapidly to a minimum at three days old. Total iron‐binding capacity increased to a maximum at one month. Serum haptoglobin was generally within the adult normal range at birth. A moderate, but significant, decrease occurred at one week old. Fibrinogen concentration increased to a maximum at five months. Icterus index values decreased rapidly during the first two weeks of life. Minor changes occurred in other parameters measured. Possible causes for the various changes in haematological parameters are discussed.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Haematology of foals up to one year old

Harvey

Asquith

McNulty

et al. 1984

Equine Veterinary Journal

View full text Add to dashboard Cite

show abstract

“…Changes in most age-related blood parameters in equine species make the use of reference values impossible for adult animals and in the clinical evaluation of foals from birth to about six months of age ( Medeiros et al ., 1971 ).…”

Section: Introductionmentioning

confidence: 99%

“…The most accurate knowledge of hematological reference values corresponding to the different breeds and age groups is indispensable for an adequate clinical evaluation of newborn foals ( Harvey et al ., 1984 ). Nonetheless, using reference values from adult horses to neonatal foals is ineffective for clinical evaluations as long as several hematological parameters change during the first months of life ( Medeiros et al ., 1971 ).…”

Section: Introductionmentioning

confidence: 99%

Fetal development and blood hematological-biochemical parameters in Campeiro and Pantaneiro foals

Vieira

Paludo²,

Ramos

et al. 2017

Anim Reprod

View full text Add to dashboard Cite

For a long time, Pantaneiro and Campeiro breeds were raised only within their places of origin. Consequently, there are few of these horses; therefore, establishing reproductive and clinical standards for these animals is necessary to implant new biotechnologies for reproduction to preserve their genetics. This study aimed to perform a descriptive evaluation of fetal age determination by fetus ocular orbit measurement in mares of the Campeiro and Pantaneiro breeds. We also evaluated sequential changes in hematology and biochemistry for foals from birth to six months of life by counting red blood cells, hemoglobin concentration, mean corpuscular volume, mean corpuscular hemoglobin concentration, leukocytes, neutrophils, lymphocytes, eosinophils, monocytes, basophils, platelet count, fibrinogen, albumin, plasma protein, creatinine, aspartate aminotransferase, alkaline phosphatase, gammaglutamyl transferase, and globulins. There was no significant difference in relation to fetal gestational age and ocular orbit between the two breeds (P = 0.578). There was no significant difference in the hematological parameters between the Campeiro and Pantaneiro foals, but there were differences in the means and changes in the blood variables when compared to the literature. These hematological and biochemical variations provide useful information for clinical evaluations from Campeiro and Pantaneiro foals up to six months of age.

show abstract