Prevention And Control Of Parasites
Gbogbo ọrọ náà
Every farm animal will meet parasites: worms in the gut, ticks on the skin, flukes in the liver. The farmer who waits for signs of infestation before acting has already lost weight, milk and sometimes an animal. The farmer who plans ahead, and who still knows how to act firmly once an infestation appears, keeps a healthy, productive herd or flock all year round.
In this lesson you will learn the difference between prevention, the everyday management that keeps parasites out or keeps their numbers low, and control, the direct action taken once an infestation is already present. You will meet the specific methods WAEC expects for each, learn how drugs are used correctly in parasite control, and see why the best farms treat prevention and control not as separate jobs but as one continuous cycle of watching, acting and reviewing.
Ebumnobi
- State the methods of preventing parasitic infestation in farm animals
- State the methods of controlling parasites in farm animals
- Explain the use of drugs in parasite control
- Explain the role of good management in parasite prevention
- Distinguish between prevention and control of parasites
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Akwụkwọ Ọmụmụ
Yi rajista ka ci gaba
Kpọpụta akaụntụ n’efu ka ị nweta ohere na ihe ọmụmụ niile, ajụjụ omume, ma soro mmepe gị.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Prevention And Control Of Parasites. 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.
- Which of the following is a method of preventing parasitic infestation rather than controlling it? A. Dosing with an anthelmintic B. Dipping in an acaricide C. Rotating animals between rested paddocks D. Culling a heavily infested animal Answer: C
- A drug used to kill internal worms in farm animals is called a/an: A. Acaricide B. Anthelmintic C. Antibiotic D. Vaccine Answer: B
- Ticks on cattle are best controlled by: A. An anthelmintic given orally B. An acaricide applied as a dip or spray C. Pasture rotation alone D. Improved nutrition alone Answer: B
- Draining a waterlogged paddock helps prevent liver fluke mainly because it: A. Kills adult flukes directly B. Removes the wet habitat needed by the snail host C. Increases the animal's appetite D. Reduces the cost of feed Answer: B
- Culling an infested animal is generally recommended when: A. The animal shows the first mild sign of infestation B. Correct treatment has failed and the animal remains severely affected C. The farmer wants to reduce herd size for any reason D. A new animal has just been bought Answer: B
Yi rajista ka ci gaba
Kpọpụta akaụntụ n’efu ka ị nweta ohere na ihe ọmụmụ niile, ajụjụ omume, ma soro mmepe gị.
Yi rajista ka ci gaba
Kpọpụta akaụntụ n’efu ka ị nweta ohere na ihe ọmụmụ niile, ajụjụ omume, ma soro mmepe gị.
Akwụkwọ A Na-atụ Aro
Ajụjụ Nnyocha
Nna, you dey wonder how past questions for this topic be? Here be some questions about Prevention And Control Of Parasites from previous years.
Ajụjụ 1 Ripọtì
(a)i) Explain the term brooding as used in animal husbandry.
(ii) State four routine activities which are carried out in a brooder house.
(b) State four effects of parasites in livestock production.
(c) Mention four ways of controlling liver fluke in sheep production.
(d) Define the term artificial insemination as used in animal production.
(ii) State four advantages of artificial insemination in cattle production.
Akọwa Nkọwa
(a)(i) Meaning of brooding
Brooding is the rearing and care of young chicks under artificial heat/warmth from day-old until about six to eight weeks of age, when they are able to regulate their own body temperature and no longer need extra heat.
(a)(ii) Four routine activities carried out in a brooder house
- Providing and regulating artificial heat for the chicks.
- Supplying clean feed and water.
- Cleaning the house and replacing wet/dirty litter.
- Vaccinating/medicating the chicks and removing dead or sick ones.
(b) Four effects of parasites in livestock production
- They reduce productivity (lower weight gain, milk and egg yield).
- They cause or transmit diseases.
- They cause anaemia through blood sucking and damage tissues/organs.
- They cause emaciation and may lead to the death of the animal.
(c) Four ways of controlling liver fluke in sheep production
- Drain marshy/waterlogged grazing land.
- Control the snail intermediate host using molluscicides.
- Drench the sheep with anthelmintics/flukicides.
- Practise rotational grazing and avoid grazing wet pasture in the early morning or late evening.
(d)(i) Definition of artificial insemination
Artificial insemination (A.I.) is the mechanical introduction of semen collected from a selected male into the reproductive tract of a female animal without natural mating.
(d)(ii) Four advantages of artificial insemination in cattle production
- It allows a single superior bull to serve many cows.
- It prevents the spread of breeding/venereal diseases.
- Semen can be stored and transported over long distances.
- It reduces the cost of keeping many bulls and overcomes size differences between animals.
Yi rajista ka ci gaba
Kpọpụta akaụntụ n’efu ka ị nweta ohere na ihe ọmụmụ niile, ajụjụ omume, ma soro mmepe gị.