(a) State: (i) four advantages and (ii) four disadvantages of the deep litter system in poultry management.

(b) Mention one disadvantage of using saw-dust as litter in a deep-litter house.

(c) The recommended floor space for fowls In a deep litter house is three (3) adult fowls per square metre. Calculate the number of adult fowls that can be kept in a deep-litter house of size 10 metre by 50 metre. (d) State three other methods of keeping poultry.