Artificial Insemination
Bayani Gaba-gaba
A single Holstein bull with outstanding milk-yield genetics can sire only a few hundred calves in a lifetime of natural mating. The same bull's semen, collected once and frozen, can sire tens of thousands, on farms he will never visit, years after he has died. That is the promise of artificial insemination: it detaches superior genetics from the physical limits of a single animal covering a single herd.
In this lesson you will learn exactly what AI is and how it differs from natural mating, follow the procedure from semen collection through evaluation, dilution, freezing and thawing to the moment of insemination, and weigh the real advantages against the real disadvantages, including the cold-chain problem that makes AI harder to run in rural Nigeria than in a temperate dairy country.
Manufura
- Define artificial insemination
- State the procedure involved in artificial insemination
- Explain the advantages of artificial insemination over natural mating
- State the disadvantages of artificial insemination
- Explain the equipment used in artificial insemination
Taswirar tunani
An zana wannan batu don ka ga yadda ra'ayoyi ke hadewa.
Katunan tunawa
Gwaji mai sauri kan abin da ake jarraba a wannan batu.
Takardar Darasi
Yi Rijista don Ci Gaba
Ƙirƙiri asusu kyauta don samun damar duk kayan koyo, tambayoyin atisaye, da kuma bibiyar ci gaban ka.
Nazarin Darasi
Barka da kammala darasi akan Artificial Insemination. Yanzu da kuka bincika mahimman ra'ayoyi da ra'ayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Artificial insemination differs from natural mating mainly because: A. It always produces twins B. Semen is collected and manually deposited into the female rather than through direct mating C. It does not require a healthy sire D. It removes the need to detect oestrus Answer: B
- In the artificial insemination procedure, semen is usually frozen for storage in: A. Distilled water B. A refrigerator at 4 degrees Celsius C. Liquid nitrogen D. Saline solution Answer: C
- Which instrument is used to deposit thawed semen into the female's reproductive tract? A. Artificial vagina B. AI gun (insemination pipette) C. Rectal palpation glove D. Extender bottle Answer: B
- Which of the following is an advantage of artificial insemination over natural mating? A. It removes the need for skilled personnel B. It allows a single superior sire to service far more females C. It guarantees pregnancy regardless of timing D. It eliminates the cost of semen straws Answer: B
- A major disadvantage of artificial insemination in many rural Nigerian communities is: A. Too many bulls are required B. Natural mating is illegal C. Maintaining the liquid nitrogen cold chain is difficult D. It increases disease transmission between animals Answer: C
Yi Rijista don Ci Gaba
Ƙirƙiri asusu kyauta don samun damar duk kayan koyo, tambayoyin atisaye, da kuma bibiyar ci gaban ka.
Yi Rijista don Ci Gaba
Ƙirƙiri asusu kyauta don samun damar duk kayan koyo, tambayoyin atisaye, da kuma bibiyar ci gaban ka.
Littattafan da ake ba da shawarar karantawa
Tambayoyin Sake Nazari
Kana ka na mamaki yadda tambayoyin baya na wannan batu suke? Ga wasu tambayoyi da suka shafi Artificial Insemination daga shekarun baya.
Tambaya 1 Rahoto
(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.
Bayanin Amsa
(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 Rijista don Ci Gaba
Ƙirƙiri asusu kyauta don samun damar duk kayan koyo, tambayoyin atisaye, da kuma bibiyar ci gaban ka.