vpg logo VMP 930
Lab Keys

VPG HOME grey line seperator VMP 930 grey line seperator Intro grey line seperator Lecture grey line seperator Lab grey line seperator Keys grey line seperator Quizzes grey line seperator CONTACT

Ruminant
Parasite Dignostic Key

1. Angular egg (triangular, square) with a gray grainy, rough shell
                                                          .......... Moniezia sp.
2. Oval to ellipsoidal egg with a smooth shell ........ Go to: 3 & 4

3. Egg withOUT an operculum, micropyle, or plugs .......... Go to: 5 & 6
4. Egg WITH an operculum, micropyle, or plugs .......... Go to: 9 & 10

5. Small oval to ellipsoid embryonated or larvated egg
                                                          .......... Strongyloides sp.
6. Moderate or very large egg containing a morula .......... Go to: 7 & 8


7. Moderate size egg with morula that fills most of the shell
                                                          .......... Strongyle-type Egg
8. Very large football-shaped egg with morula that does NOT fill shell
                                                          .......... Nematodirus sp.

9. Egg with bi-polar plugs .......... Trichuris sp.
10. Egg or oocyst w/ single operculum or micropyle .......... Go to: 11 & 12

11. Oocyst with micropyle & single-celled embryo .......... Eimeria sp.
12. Large operculated egg with a morula .......... Fasciola sp.

microscope logo


Website contents are for your educational use only and are not to be copied or distributed without the owner's consent.
NC State College of Veterinary Medicine
1060 William Moore Drive
Raleigh, NC 27607