Title page and abstract page 1
Contents
Background information
Experiment
Results
Discussion
Conclusion
Recommendations
Bibliography
Figures and pictures:
Background:
The two main parasites include ectoparasites, which are those living on the external of the host (mosquitos, ticks) and endoparasites, which live internally in the host (worms). Nematodes or roundworms, cestodes or tapeworms and trematodes or flukes are the three categories in which endoparasites can be divided. Barbers Pole Worm is a nematode which attaches to and causes lesions to the fourth stomach or abomasum of sheep, and obtains nutrients through the blood. Large infestations of the parasite …show more content…
If conditions are warm and humid, at 18 degrees C or above, the eggs then hatch as larvae and continue to shed skin to become an adult, while surviving on blades of grass for up to six weeks. (refer to figure) When grazing on pasture, sheep then consume the worms and the lifecycle of this parasite continues. Barbers pole worm causes great loss of production in the sheep industry, especially in Queensland and northern New South Wales, where summer rainfall is common and conditions are ideal. Barbers pole worm is a parasite that thrives in warm climates between 25 and 35 degrees C. (refer to figure)
Barbers pole worm FEC
Introduction: A faecal egg count is conducted to find the quantitative amount of worm eggs per gram (epg). An FEC is usually carried out in a laboratory and is commonly used to find Barbers Pole worm eggs along with other nematodes, cestodes and trematodes.
Aim: To conduct a faecal egg count to estimate the number of Barbers Pole worm eggs passed through the faeces of several different sheep.
Materials:
- 2g faeces
- 31.7g …show more content…
Control opportunities include drenches or anthelmintics, paddock rotation, and improving genetic resistance in the sheep through cutting the tail or selective breeding. As can be seen through the experiment, the school’s sheep did have a level of infestation in which is likely to be controlled mainly through the use of an anthelmintic. Selective breeding was also used to some extent, where the ram who was evident of immunity (0epg), would theoretically pass those traits onto offspring. Paddock rotation, while effective, is quite impractical in the school grounds due to lack of space and protection. Four paddocks would have to be fenced, and ‘dog-proofed’ if the sheep were to graze in each paddock for the duration of two