International Journal of Biology Research

Authors
Ayman N Elsayed, Ahmed II Badawy, Moustafa Sarhan, Ahmed Abdel-Aziz

Abstract
Examination of 120 abomasa of one-humped dromedary, Camelus dromedarius, slaughtered at two slaughterhouses in Egypt during the period from October 2017 to September 2018, revealed that overall 55 (45.83%) dromedaries harbored 12035 Haemonchus longistipes worms [5824 (48.39%) males and 6211 (51.61%) females]. Concerning vulvar morphology of female worms, the study revealed that out of 6211 female worms, 515 (43.72%) were smooth, 539 (45.76%) knobbed and 124 (10.53%) linguiform vulvar morphotypes at Elbasateen slaughterhouse (Cairo) and 1555 (30.90%) were smooth, 3049 (60.58%) knobbed and 429 (8.52%) linguiform vulvar morphotypes at Elbakry slaughterhouse (Qalyubia). Accordingly, the knobbed vulvar flap was encountered the most predominant morphotype from dromedaries at both slaughterhouses. Furthermore, the linguiform vulvar flap (L) revealed of 20 (16.13%) LA, 98 (79.03%) LB, 3 (2.42 %) LC and 3 (2.42%) LI sub-morphotypes at Elbasateen slaughterhouse and 62 (14.45%) LA, 359 (83.68%) LB, 3 (0.70%) LC and 5 (1.17%) LI sub-morphotypes at Elbakry slaughterhouse. Accordingly, Linguiform B was the most dominant linguiform sub-morphotype from dromedaries at both slaughterhouses. A few numbers of LC and LI might be due to the lower ability of both in coping as compared to LA and LB sub-morphotypes and attributed to adaptation in agro-ecology of the study sites or to the little worms per abomasum in some specimens.