Oestrus ovis larval infestation among sheep and goats of Green Mountain areas in Libya

Authors

  • Mohsen M. Negm-Eldin Department of Parasitology,Faculty of Veterinary Medicine, Benha University
  • Reham S. Elmadawy Department of Parasitology,Faculty of Veterinary Medicine, Benha University
  • Gasim M. Hanan Department of Zoology, Faculty. of Science, Omer El-Mukhtar University

Keywords:

Larval burden, O. ovis, prevalence, Seasonal dynamics

Abstract

Heads of sheep (n=180) and goats (n=120) slaughtered
at four regions (Labraq, Shahat, Elbeida, and Masa) of
Green Mountain areas in Libya were investigated for
the  presence  of  larvae  of  Oestrus  ovis.    The  animals
were  divided  into  sex  and  age  groups.  The  heads
were cut along longitudinal and sagittal axes, and the
larvae (L1, L2, and L3) were collected. The infestation
rate  was  significantly  higher    in  sheep  (51.66%;
n=93/180) as compared to goats (28.33%; n=34/120). In
sheep, the rate was higher during May (100%), while
in  goat,  it  was  higher  during  August  (70%).  The
incidence of L1 peaked in April (90%) for sheep and
October  (100%)  for  goats,  while  L2  reached  to
maximum in May for sheep (26.95%) and goats (75%).
L3 reached to peak in February (50%)  for sheep, and
June (25%) for goats. Mean intensity of larval burden
was  higher  in  sheep  than  goat,  reaching  to  peak  in
June  (9.1  larvae/head)  for  sheep  and  March  (3.5
larvae/head)  for  goats.  The  infestation  rate  was
significantly higher in males than females. The older
animals were mostly affected as compared to younger
animals.  Highest  infestation  rate  was  recorded  in
Masa  (45.83%),  and  the  lowest  rate  was  found  in
Labraq (40.27%). In conclusion, these findings may be
used in designing the control strategies of myiasis in
Libya.

http://dx.doi.org/10.5455/javar.2015.b105

 

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Published

2015-12-31

How to Cite

Negm-Eldin, M. M., Elmadawy, R. S., & Hanan, G. M. (2015). Oestrus ovis larval infestation among sheep and goats of Green Mountain areas in Libya. Journal of Advanced Veterinary and Animal Research, 2(4), 382–387. Retrieved from https://banglajol.info/index.php/JAVAR/article/view/26085

Issue

Vol. 2 No. 4 (2015)

Section

Original Articles

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