STRONGYLES Flashcards
1
Q
name the basic features of the strongyles
A
buccal cav corona radialis around mouth teeth DIRECT bursate
2
Q
describe the basic strongylus vulgaris lifecycle
A
egg shed --> iL3 ingested penetrates mucosa --> L4 migrate to cr mesenteris a --> L5 --> LI to lay eghs
3
Q
desc basic cyathostomic lifecycle
A
egg shed --> iL3 ingested can hypobiose in walls of LI/caecum as eL4 or L4 in mucosa --> lumen LI --> L5 lay eggs
4
Q
how do you differentiate S. vulgaris, S. edentis, S. equinus
A
S. vulgaris = mickey mouse teeth, smallest (2cm)
S. edentus = no teeth, D gutter (line)
S. equinus = smaller teeth
5
Q
describe basic features of the triodontophorus
A
non-migratory
not path on own, but worsen damage of other parasites
2 x size of normal eggs
6
Q
what is charcteristic of the iL3 larva
A
2nd stage cuticle remains (lie tricho)
7
Q
how large are storngyle eggs
A
80 um. indistinguishable
8
Q
how can you ID the different staged larvae?
A
1st stage = longtail
3rd stage = infective - retains 2nd stage cuticle
9
Q
how large are small strongyle and large strongyle
A
small = 1.5cm large = 2cm (vulgaris), edentus and equinus are same size (2.5-5cm)
