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Animal Reproduction and Physiology
Asian-Australasian Journal of Animal Sciences 1996;9(5): 597-602.
DOI: https://doi.org/10.5713/ajas.1996.597    Published online October 1, 1996.
Effect of experimental Haemonchus contortus infection on hemoglobin concentration and packed cell volume of does
M. M. R. Howlader, S. S. Capitan, S. L. Eduardo, N. P. Roxas, C. C. Sevilla
Twelve Philippine does of 3.5-5.0 years old were used in this study. They were divided into three groups, T1, T2 and T3. Four animals were randomly allocated to each group. Before infection, they were dewormed and housed in individual pens with concrete floors. They were provided with a uniform management. They were infected orally with a single dose of three levels(0, 15,000 and 30,000) of infective Haemonchus contortus larvae. Blood samples were collected from the jugular vein of each animal at fortnightly intervals for 17 fortnights. Hemoglobin(Hb) concentration was determined using hemoglobinometer and packed cell volume(PCV) by microhematocrit methods. Animals in infected groups showed significantly(p<0.05) lower hemoglobin values than the control except during fortnight 1 for group 2 and fortnights 1, 2, 5, 6 and 7 for group 3. Hemoglobin concentration did not significantly(p>0.05) differ between the animals in infected groups throughout the sampling period except fortnight 2. The PCV values of animals in infected groups were significantly(p<0.05) lower than the control for most of the sampling periods. The PCV values of animals in group 2 did not significantly(p>0.05) differ from group 3.
Keywords: Effect; Haemonchus contortus; Philippine Doe; Hemoglobin Concentration; Packed Cell Volume

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