Morphometry and Molecular Identification of Haemonchus Cobb, 1898 (Trichostrongylidae: Nematoda) Isolates from Small Ruminants in Tanzania Based on Mitochondrial cox 1 and rRNA-ITS genes

Table 1

Morphometric features of male and female Haemonchus contortus collected in Tanzania compared with other locations.

Morphological features	Sahai and Deo (1964) [33]		Soulsby (1982) [34]		Lichtenfels (1994) [35]		Current study
(μm)	Male	Female	Male	Female	Male	Female	Male	Female
Number examined	N/A	N/A	N/A	N/A	23	22	27	69
Body length	14,000–17,000	20,000–27,000	10,000–12,000	18,000–30,000	11,100–17,000	14,800–27,200	14,039	14,800–27,200
Width	199–265	215–332	—	—	—	—		313–374
Nerve ring	—	—	—	—	188–326 (254)	210–394 (271)	111	81–151
Excretory pore	—	—	—	—	232–356 (285)	205–400 (290)	151	131–313
Cervical papillae	—	—	—	—	271–462 (354)	243–484 (363)	210	111–212
Oesophagus length	1,444–1,743	1,162–1,662	—	—	1.09–1.55 (1.26)	243–484 (363)	1,232	1111–1,414
Anterior infundibulum length	N/A	—	N/A	—	N/A	188–394 (272)	N/A	101–313
Anterior sphincter length	N/A	—	N/A	—	N/A	154–284 (222)	N/A	141–232
Vestibular length	N/A	—	N/A	—	N/A	150–263 (198)	N/A	156–222
Vagina length	NA		N/A	—	N/A	75–188 (110)	N/A	80–202
Tail length	N/A	415–513	N/A	490–550	N/A	251–530 (396)	N/A	56–596
Gubernaculum	199–349	N/A	—	N/A	195–255 (221)	N/A	212	N/A
Spicule’s length	398–448	N/A	460–506	N/A	383–475 (425)	N/A	434	N/A
Dorsal ray							181.8	N/A
Genital cone							50.5	N/A
Description	Sheep and goat		Sheep and goat		Several		Sheep
Locality	India		London		Several		Tanzania

N/A: not applicable; —: not indicated; Several: different hosts collected from various regions include United State of America, Brazil, Australia, South Africa, Sierra Leone, Puerto Rico, and Guyana.