[Microecological characterization of parasitic nematoda present in goats of arid zones of Venezuela].

Abstract:

:Goats from the Venezuelan northern arid zones were found infested by the following nematodes: Haemonchus contortus, Trichostrongylus axei, T. colubriformis, Cooperia curticei, Oesophagostomum columbianum, Skrjabinema ovis y Trichuris globulosa. The Shannon-Weaver index of diversity values oscillated between 0.045 and 1.73 bits (means = 1.16 +/- 0.24 bits). The maximum value of montly diversity ranged from 1 to 2.80 bits (means = 2.49 +/- 0.28 bits) and the equitability ranged from 0.045 to 0.67 (means = 0.44 +/- 0.09). Parasitic associations were found among 1) T. axei, T. colubriformis and H. contortus, 2) T. colubriformis, H. contortus and O. columbianum and 3) T. colubriformis, S. ovis and T. globulosa. The above results suggest that in months when the diversity index is close to the maximum value and the equitability index is near unity, wide spectrum antihelmintic treatment should be used for poly-parasitized animals.

journal_name

Mem Inst Oswaldo Cruz

authors

Morales G,Pino LA,Aldana E,Perdomo L,Molina E

doi

10.1590/s0074-02761986000200009

subject

Has Abstract

pub_date

1986-04-01 00:00:00

pages

199-205

issue

2

eissn

0074-0276

issn

1678-8060

pii

S0074-02761986000200009

journal_volume

81

pub_type

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