Document Detail

Erythrocyte maturation in neonatal dwarf and landrace kids.
MedLine Citation:
PMID:  1715622     Owner:  NLM     Status:  MEDLINE    
The morphology of the erythrocyte cell series was investigated in external jugular vein blood samples from Dwarf and Danish Landrace goats aged from one day to 12 months. Three erythrocytic cell types were observed in neonates after supravital staining with new methylene blue. The first type were macrocytes which were stained uniformly dark to muddy blue. They formed the majority of the erythrocytic cells at birth and were categorized as diffusely basophilic chromatophilic erythrocytes. The second type were punctate and aggregated reticulocytes, and the third type were mature erythrocytes. The size ranges of the three erythrocytic cells were 4.2-5.6, 4.9-6.3 and 2.8-3.5 microns diameter respectively in the Dwarf kids and 5.6-9.7, 4.2-9.0 and 3.8-4.2 microns respectively in the Landrace kids during the first week of life. Romanowsky-stained blood smears from neonatal kids were characterized by anisocytosis and poikilocytosis in which polychromatophilic macrocytes were numerous, but reticulocytes were not clearly identifiable. The ranges of erythrocyte diameters in Romanowsky-stained neonatal blood films were 4.4-5.8 (5.2 +/- 0.39) and 4.1-6.7 (5.1 +/- 0.67) microns in Dwarf and Landrace kids respectively, decreasing to 3.0 +/- 0.15 and 3.3 +/- 0.13 microns in the two broods respectively by 12 months of age. The numbers of diffusely basophilic polychromatophilic erythrocytes and punctate/aggregated reticulocytes diminished with age and they were not observed in 1-2-month-old kids.
G K Mbassa; J S Poulsen
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Veterinary research communications     Volume:  15     ISSN:  0165-7380     ISO Abbreviation:  Vet. Res. Commun.     Publication Date:  1991  
Date Detail:
Created Date:  1991-09-30     Completed Date:  1991-09-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8100520     Medline TA:  Vet Res Commun     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  239-47     Citation Subset:  IM    
Department of Clinical Studies, Royal Veterinary and Agricultural University, Frederiksberg, Denmark.
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MeSH Terms
Animals, Newborn / blood*
Erythrocytes / cytology,  physiology*
Goats / blood*
Methylene Blue
Reticulocytes / physiology
Staining and Labeling
Reg. No./Substance:
61-73-4/Methylene Blue

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