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<=Diploma in Agriculture module 1 : Animal production I past paper July 2019
In a ranch in Kajiado, approximately one calf in 10,000 cows is born with congenital defect, Atresia ani that affects individuals who are homozygous for the recessive allele (aa). Calculate:
(i) frequency of the recessive allele (a) in the population;
(ii) frequency of the normal allele (A);
(iii) the number of heterozygote individuals
(i) frequency of the recessive allele (a) in the population;
(ii) frequency of the normal allele (A);
(iii) the number of heterozygote individuals
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Questions List:
1. Describe each of the following methods of bush control in rangelands: (i) physical removal; (ii) biological control
2. State the function of each of the following parts of a plunge dip: (i) collection yard; (ii) foot bath; (iii) jump: (iv) dip tank; (v) draining race; (vi) silt trap outlet; (vii) roof; (viii) soak pit.
3. Explain each of the following methods of animal selection: (i) tandem selection; (ii) independent culling levels; (iii) index selection.
4. In a ranch in Kajiado, approximately one calf in 10,000 cows is born with congenital defect, Atresia ani that affects individuals who are homozygous for the recessive allele (aa). Calculate: (i) frequency of the recessive allele (a) in the population; (ii) frequency of the normal allele (A); (iii) the number of heterozygote individuals
5. Table I shows the levels of heritability of traits i)Indicate the level of each value (percentage) of heritability given ii)State the significance of the level with heritability value of more than 0.3:
6. Explain how each of the following factors of an animal affect its feed intake: (i) physiological status; (ii) fatness; (iii) size; (iv) sex.
7. Explain four reasons for keeping livestock healthy
8. Describe trypanosomiasis disease with respect to: (i) aetiology: (ii) symptoms; (iii) prevention; (iv) treatment.
9. Explain the types of soil degradation processes in rangelands
10. Identify seven uses of livestock
11. Table II shows hormones responsible for animal reproduction. Table II (i) Name the source for each of the hormones (ii) Highlight the functions of each of the hormones
12. Define the term 'grazing management'
13. Describe grazing management with respect to: (i) time of grazing: (ii) frequency of grazing: (ii) intensity of grazing: (iv) number of animals
14. Highlight the characteristics of an ideal crop for silage making
15. Explain the importance of each of the following treatments on a crop for silage making: (i) field wilting: (ii) fine chopping: (iii) addition of additives.
16. Describe dermatophilosis disease with respect to: (i) actiology: (ii) symptoms; (iii) prevention: (iv) treatment.
17. Explain extensive system of dairy cattle production
18. Describe each of the following physical indicators of animal feed quality: (i) stage of growth; (ii) texture; (iii) appearance and colour, (iv) freshness.
1. Describe each of the following methods of bush control in rangelands: (i) physical removal; (ii) biological control
2. State the function of each of the following parts of a plunge dip: (i) collection yard; (ii) foot bath; (iii) jump: (iv) dip tank; (v) draining race; (vi) silt trap outlet; (vii) roof; (viii) soak pit.
3. Explain each of the following methods of animal selection: (i) tandem selection; (ii) independent culling levels; (iii) index selection.
4. In a ranch in Kajiado, approximately one calf in 10,000 cows is born with congenital defect, Atresia ani that affects individuals who are homozygous for the recessive allele (aa). Calculate: (i) frequency of the recessive allele (a) in the population; (ii) frequency of the normal allele (A); (iii) the number of heterozygote individuals
5. Table I shows the levels of heritability of traits i)Indicate the level of each value (percentage) of heritability given ii)State the significance of the level with heritability value of more than 0.3:
6. Explain how each of the following factors of an animal affect its feed intake: (i) physiological status; (ii) fatness; (iii) size; (iv) sex.
7. Explain four reasons for keeping livestock healthy
8. Describe trypanosomiasis disease with respect to: (i) aetiology: (ii) symptoms; (iii) prevention; (iv) treatment.
9. Explain the types of soil degradation processes in rangelands
10. Identify seven uses of livestock
11. Table II shows hormones responsible for animal reproduction. Table II (i) Name the source for each of the hormones (ii) Highlight the functions of each of the hormones
12. Define the term 'grazing management'
13. Describe grazing management with respect to: (i) time of grazing: (ii) frequency of grazing: (ii) intensity of grazing: (iv) number of animals
14. Highlight the characteristics of an ideal crop for silage making
15. Explain the importance of each of the following treatments on a crop for silage making: (i) field wilting: (ii) fine chopping: (iii) addition of additives.
16. Describe dermatophilosis disease with respect to: (i) actiology: (ii) symptoms; (iii) prevention: (iv) treatment.
17. Explain extensive system of dairy cattle production
18. Describe each of the following physical indicators of animal feed quality: (i) stage of growth; (ii) texture; (iii) appearance and colour, (iv) freshness.
