(a) Explain briefly three systems of mating in livestock management. [6 mark ]
(b) Draw and label the digestive tract of a hen [7 mark ]
(c) Give five reasons why ornamental plants are important. (5 marks)
Explanation
(a) Explanation of systems of mating in livestock management
Stud/hand mating: This invlolves keeping a proven sire in a study where any dam on heat is brought for mating and there after the dam is taken away
Pen mating: A group of female animals on heat are brought in the male’s pen for mating Or Pen mating involves one male and several female farm animals
Flock/pasture mating: This is a system in which both the sires and dame are allowed to move together and mate freely
(b) Drawing and labelling of the digestive tract of a hen
(c) Reasons why ornamental plants are important
– Used to beautify the environment
– Used in landscaping
– Used to demarcate boundaries/fencing
– Serve as wind break/shelter belt
– Source of income
– Source of employment
– Used in expressing affection/love e.g. flower
– Promote tourism
– Used for making avenues
– Used for educational research purposes
– Used for bouquets, garlands, wreaths etc.
– The flowers of some ornamental plants are used for preparation of dyes
– Some ornamental plants produce fragrance which gives pleasure to people
– Help to reduce night blur on major roads to prevent accidents in the night
– Leguminous ornamental plants fix nitrogen into the soil
– Some ornamental plants are edible/used as food by humans/animals
– Used for visual screening/concealing views to provide privacy
– Some have medicinal value
– They provide shade
– Source of foreign exchange/revenue to the government through taxation
– Reduce noise pollution