Experimental infection of Ancylostoma braziliense in dogs and cats in Thailand II. Blood loss
Areekul, S.; Tipayamontri, U.; Ukoskit, K.
Southeast Asian Journal of Tropical Medicine and Public Health 5(2): 230-235
1974
ISSN/ISBN: 0125-1562 PMID: 4547205 Document Number: 77002
Intestinal blood loss by 11 cats and 11 dogs infected orally or subcutaneously with 800 to 16,400 Ancylostoma braziliense larvae was studied using Cr51-labelled autologous erythrocytes. Scanty blood loss was detected in the faeces of cats 21 days after cutaneous and 22 days after oral infections. In dogs this blood loss was detected on the 16th and 19th days, respectively. The mean blood losses in cats were 0.0102 ml/worm/day in those infected cutaneously and 0.0037 ml/worm/day in those infected orally. In dogs the corresponding figures were 0.0082 and 0.0069 ml/worm/day. There was a direct relationship between the number of worms recovered and the amount of blood lost, but the blood loss/worm/day showed a reverse relationship with the total number of worms recovered. This indicated that blood loss/worm/day was less with higher than with lower worm loads.