(a) (i) Define the term culling as used in livestock production.
(ii) State two reasons why culling is practiced in cattle production.
(b) Mention one major function each of ptyalin, rennin and pepsin during digestion of feed in rabbits.
(a) Discuss anthrax disease under the following headings:
- causative organisms
- two modes of transmission;
(b) Draw and label the reproductive tract of a hen. [6 marks]
(a) Define the term animal improvement.
(b) Explain briefly the following terms as used in animal improvement:
- cross breeding;
- out-breeding.
(d) Complete the table below:
|
Farm animal |
Name of mature female |
Gestation period (days) |
|
Sheep |
…………………… |
…………………….. |
|
Pig |
…………………… |
…………………….. |
|
Rabbit |
…………………… |
…………………….. |
(a) Define the following terms:
- hay
- silage.
(b)(i) Name two types of pasture.
(ii) State four advantages of establishing a grass-legume pasture.
(iii) State three advantages of rotational grazing. [3 marks]
(c) Draw and label the digestive tract of a hen.
(a) Explain the term malnutrition in farm animals.
(b) Distinguish between maintenance ration and production ration.
(a) State four advantages if artificial insemination.
(b) State five functions of the rumen.