Animal Husbandry Essay/Obj

WAEC ANIMAL HUSBANDRY ANSWER

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Thursday, 4th May, 2017

Animal Husbandry  (Essay)2.00 pm. – 4.00 pm.
Animal Husbandry  (Objective)4.00 pm. – 4.40 pm.

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Theory

Answer 4 only in this section

3a)
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. 

3b)
pls In tabular form. 
-Chicken-
i)It has one stomach chamber.
ii)Does not have teeth in its mouth part
iii)It has crop
iv)It cannot regurgitated
-Goat-
i)It has four compartment stomach
ii)It have teeth in its mouth part.
iii)Does not have a crop. 
iv)It can regurgitated

3c)
i)re-seeding and pest control
ii)controlled stocking and disease control
iii)rotational grazing and weed control
iv)fertilizer application 
v)irrigation

3d)
i)Glucose 
ii)amino acids 
iii)triglycerides

3e)
i)Protein helps in building and repairing muscles. 
ii)It is needed to form new skin cells for animals.
iii)It assists animals in creating body chemicals like hormones and enzymes that are needed for normal function. 
iv)It provides energy and keeps the immune system strong.

3f)
i)trypsin
ii)chymotrypsin

5a)
i)Carbohydrates serve as source of energy in animal body.
ii)Carbohydrate functions as Hormone in animals. 
iv)Carbohydrate functions as Antigen in animals.
iv)Carbohydrate functions as framework in animal body.

5b)
i)Nose and Nasal Cavity. 
ii)Lung
iii)Trachea.
iv)Bronchi and Bronchioles.

5c)
i)Allergic Rhinitis and Enzootic Nasal Granuloma in animals. 
ii)Sinusitis in animals.

5di)
Exhalation is the flow of the respiratory current out of the organism. 

5dii)
Inhalation is the process of breathing in,
taking air and sometimes other substances into the lungs.

5diii)
Peristalsis is a series of wave-like muscle contractions that moves food to
different processing stations in the digestive tract.

5div)
Ovulation is when an egg moves from the ovaries into the fallopian tubes and is ready for fertilization. 

5dv)
rumination is the way that animals eat, storing their partially-digested food in a special stomach called a rumen, to be brought back up later and chewed more thoroughly.

1a)
i)Not enough drinking water
ii)No feed or decreased feed intake
iii)Low calcium in the feed
iv)Newcastle disease (NCD) 
v)Infectious bronchitis (IB)
vi)Poor management

1b)
i)Mouth 
ii)Small intestines 
iii)Large intestines

1c)
i)For food production e.g milk and meat
ii)They are used as source of power in the farm. 
iii)They serve as source of hides. 
iv)They serve as source of income to farmers 
v)They provides raw materials for industry.
vi)Their horns are used for decoration.

1d)
i)Poultry Eggs are used for food 
ii)They serve as raw materials for industry 
iii)They serve as source of income for farmers.
iv)it serve as garden aid
v)It is a cure for the common hangover

6a)
Animal improvement is a complex
process which involves modification of the genotype and the environment in an harmonious fashion.

6bi)
the bringing into the farm or a country high quality breeds of livestock with a high productive capacity and other good desirable characteristics from another farm or country.

6bii)
-Advantage-
i)Breeds which are not originally present in the home country are introduced. 
ii)It leads to the absence of pests and diseases. 
iii)It enhance greater productivity.
-Disadvantage-
i)It may introduce new disease to the area.
ii)It may introduce new pests to the area.
iii)It may not perform maximally.

6ci)
progeny Selection is the process of picking or selecting from a mixed population, those animals with breeding value as parents.

6cii)
i)It ensures that only the best naturally available animals are selected.
ii)Animals with desirable characteristics are selected.
iii)Animals with undesirablecharacteristics are detected and rejected.
iv)Animals from best breeds are bred for distribution.
v)It also reduced the spread or parasites associated with breeding stocks.

6d)
i)It is easier and less expensive than natural mating. Since the farmer is saved the expense of maintaining a herd or male animal. 
ii)It is easier and cheaper to import the semen of exotic breeds rather than the male animals themselves. 
iii)It is possible to service many female of different size leading to the production of many offspring.

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