![2025 NECO Animal Husbandry (OBJ & Essay) Answers [11th July]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEit60GqUzL1yU6CEh1H4FVh2SXuOwdumCPBDVGnE8lUyiEpq5sQ7C8cupUjnyxQlFKBzKnLnh66F7OzHBjil1nY6hZCdESmk_ADBxHUgxKWTvA6JMsmFE0GOCf5P3QSeWqf10azbIKOoq0/s1600/NECO.jpg "2025 NECO Animal Husbandry (OBJ & Essay) Answers [11th July]")
Friday 11th July 2025
Animal Husbandry (Objective & Essay)
10:00am – 12:00noon
A. 2025 NECO ANIMAL HUSBANDRY (OBJECTIVES) ANSWERS:
1-10: CBEAACECCC11-20: EEECDBEDBE
21-30: BCACBCCEBA
31-40: DCADEEAAAC
B. 2025 NECO ANIMAL HUSBANDRY (ESSAY) ANSWERS:
OR
(1ai)
(PICK ANY TWO)
(i) Relaxation of the diaphragm
(ii) Relaxation of the external intercostal muscles
(iii) Increase in air pressure in the lungs
(iv) Elastic recoil of the lungs
(1aii)
(PICK ANY TWO)
(i) The respiratory system supplies oxygen to the body of the animal.
(ii) It removes carbon dioxide from the body of the animal.
(iii) It helps to regulate the temperature of the animal’s body.
(iv) It helps the animal to detect smell.
(1b)
(PICK ANY THREE)
(i) Kidneys – urine
(ii) Lungs – carbon dioxide and water vapour
(iii) Skin – sweat
(iv) Liver – bile pigments
(v) Large intestine – faeces
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(2a)
(PICK ANY ONE)
Castration is the removal or inactivation of the testicles of a male
animal in order to render it sterile, prevent reproduction, and control
aggressive behaviour.
OR
Castration is the removal or destruction of the testicles of a male animal to render it incapable of reproducing.
(2b)
(i) Hot branding
(ii) Freeze branding
(2c)
(PICK ANY THREE)
(i) When it produces low quantities of milk.
(ii) If it suffers from chronic diseases or poor health.
(iii) Due to old age or reproductive challenges.
(iv) If it has physical deformities or udder problems.
(v) When it shows poor temperament or aggressive behaviour.
(2d)
(PICK ANY THREE)
(i) Collection of the skin from slaughtered animals
(ii) Processing and preservation of the skin
(iii) Transportation and selling to buyers or industries.
(iv) Grading and sorting of the skins according to quality and size
(v) Packaging and storage before distribution or export
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(3ai)
(PICK ANY ONE)
Stocking rate in rangeland management is defined as the number of
animals grazing per unit area of land over a specific period of time
without causing damage to the vegetation or the environment.
OR
Stocking rate is the population of grazing animals that a unit area of
pasture or rangeland can support sustainably without deteriorating the
pasture resources.
(3aii)
(PICK ANY TWO)
(i) To prevent overgrazing and allow pasture regeneration.
(ii) To facilitate controlled grazing and efficient use of pasture.
(iii) To reduce the spread of diseases and parasites among animals.
(iv) To allow for pasture monitoring and management.
(3b)
(PICK ANY TWO)
(i) Lactating animals
(ii) Pregnant animals
(iii) Working animals
(iv) Breeding animals
(v) Growing animals
(3c)
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(4ai)
(PICK ANY ONE)
Progeny Selection:
Progeny selection is a method of choosing parent animals or plants based
on the performance of their offspring (progeny). It helps identify
individuals with desirable genetic traits by evaluating how well their
progeny perform in terms of productivity, disease resistance, or other
qualities.
OR
Progeny Selection:
This is the process of selecting breeding stock by evaluating the traits
or performance of their offspring. It helps in improving future
generations by keeping parents that produce the best progeny.
(4aii)
(PICK ANY ONE)
Cross Breeding:
Cross breeding involves mating animals or plants from two different
breeds or varieties to combine desirable traits from both. This often
results in hybrid offspring with improved performance, such as increased
growth rate, fertility, or resistance to diseases.
OR
Cross Breeding:
This is the mating of animals or plants from different breeds to produce
offspring that may have better qualities than the parents, such as
higher yield or better adaptability
(4b)
(PICK ANY FOUR)
(i) Requires skilled personnel
(ii) High cost of equipment and maintenance
(iii) Lower conception rate
(iv) Spread of diseases if hygiene is poor
(v) Limited genetic diversity
(vi) Labor intensive process
(4c)
(PICK ANY ONE)
Genes are units of heredity that carry information for a specific trait,
while alleles are different forms or variations of the same gene.
OR
Genes are units of inheritance that determine the traits of an organism,
while Alleles are different forms of the same gene controlling a
particular trait
===============================================
(5a)
(PICK ANY TWO)
(i) Vaccination of animals
(ii) Regular deworming
(iii) Isolation of sick animals
(iv) Proper sanitation and hygiene
(v) Control of vectors and pests
(vi) Regular veterinary check-up
(5bi)
(PICK ANY ONE)
Deworming:
Deworming is the process of administering drugs to farm animals to
eliminate internal parasites such as worms. It helps improve the
animals’ health, feed efficiency, and overall productivity.
OR
Deworming:
Deworming is the act of treating farm animals with specific medications
to remove or control internal parasites that live in their intestines or
stomach.
(5bii)
(PICK ANY ONE)
Drenching:
Drenching is the method of giving liquid drugs orally to farm animals
using a drenching gun or bottle. It is mainly used to treat internal
parasites and certain infections, ensuring the medicine reaches the
digestive system directly.
OR
Drenching:
Drenching is the administration of liquid medication directly into the
mouth of farm animals to treat diseases, usually using a drenching
instrument.
(5c)
(i) Virus:
(PICK ANY ONE)
– Newcastle disease
– Marek’s disease
– Infectious bursal disease (Gumboro)
– Avian influenza
(ii) Bacterium:
(PICK ANY ONE)
– Fowl cholera
– Pullorum disease
– Colibacillosis
– Infectious coryza
(iii) Fungus:
(PICK ANY ONE)
– Aspergillosis
– Candidiasis
– Favus
(iv) Protozoan:
(PICK ANY ONE)
– Coccidiosis
– Histomoniasis (Blackhead disease)
– Trichomoniasis
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