Ectoparasites And Endoparasites

Gbogbo ọrọ náà

Not every threat to a farm animal comes from a germ too small to see. Some threats are visible, crawling on the skin, and some hide deep inside the animal's own gut. A West African Dwarf goat rubbing itself raw against a fence post has a problem living on its skin. A sheep that eats well but grows thin and pale has a problem living inside its body. Both are parasites, and this lesson teaches you to tell the two kinds apart.

You will meet the ectoparasites that ride on the outside of the host, ticks, lice, mites, fleas and the tsetse fly, and the endoparasites that live within it, roundworms, tapeworms and liver flukes. You will trace how a roundworm completes its life cycle straight through the pasture, and how a liver fluke cannot complete its own without borrowing the body of a snail first. Finally you will learn exactly what damage each group does to the animal it lives on, the specific facts WAEC rewards with marks.

Ebumnobi

  1. Define ectoparasites and endoparasites
  2. Give examples of ectoparasites of farm animals
  3. Give examples of endoparasites of farm animals
  4. Explain the life cycle of a named endoparasite
  5. State the damage caused by ectoparasites and endoparasites

Akọmọ Ojú-ẹkọ

A herder near Jos notices his goats scratching against trees. His neighbour's cattle look untroubled outside, yet lose condition and pass watery dung. Two farms, two problems, both parasites. Knowing where a parasite lives is the first step to naming it and explaining its damage.

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Ectoparasites And Endoparasites. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. Which of the following is an ectoparasite of farm animals? A. Roundworm B. Tapeworm C. Tick D. Liver fluke Answer: C
  2. Endoparasites are best described as parasites that live: A. On the surface of the skin only B. Inside the body of the host C. In the soil around the animal D. On the plants an animal eats Answer: B
  3. The intermediate host required in the life cycle of the liver fluke is a: A. Tick B. Snail C. Mosquito D. Housefly Answer: B
  4. Heavy infestation with a blood-sucking stomach roundworm such as Haemonchus chiefly causes: A. Improved weight gain B. Anaemia and poor growth C. Immunity to other diseases D. Increased milk fat content Answer: B
  5. The tsetse fly is of major economic importance to livestock keeping in Nigeria chiefly because it: A. Improves pasture growth B. Transmits trypanosomiasis (nagana) C. Is a source of protein for poultry D. Controls tick populations Answer: B

Àwọn Ìbéèrè Tó Ti Kọjá

Nna, you dey wonder how past questions for this topic be? Here be some questions about Ectoparasites And Endoparasites from previous years.

Ajụjụ 1 Ripọtì

(a) Explain each of the following terms as used in the slaughtering of farm animals:
(i) scalding 
(ii) singeing:
(iii) evisceration.

(b) Name four agents involved in the marketing of farm animals and animal products

(c) State five marketing functions that could be performed to facilitate the sale of chicken and eggs.

(d) Name three stages in the life cycle of a roundworm.

(e) Mention two methods of animal improvement.