(a) In an incubator, 1,500 eggs were arranged on the trays for incubation. During candling, 25 eggs were discovered to be unfertilized. At hatching, 475 chicks were male and the remaining were female. Calculate the percentage of:
(i) unfertilized eggs;
(ii) fertilized eggs;
(iii) male chicks;
(iv) female chicks. [ 6 marks]

(b) State four signs that indicate the approach of parturition in a cow. [ 4 marks ]

(c) Mention four vegetative materials that could be used in propagating ornamental
plants. [ 4 marks ]

(d) State four advantages of grafting. [ 4 marks ]

(a) Mention three functions of a farm manager. [ 3 marks ]
(b) Use the information in the demand schedule below to answer the questions that follow.

(i) Draw a demand curve from the schedule [ 4 marks ]
(ii) Use the demand schedule to explain the relationship between quantity demanded
and price. [ 2 marks ]

(c) State three advantages of the wholesaler in marketing of agricultural produce.
[ 3 marks ]

(d) Discuss the rinderpest disease under the following headings:
(i) two farm animals affected;
(ii) causative agent;
(iii) two symptoms;
(iv) one mode of transmission;
(v) one preventive measure. [ 6 marks ]

(a) State four reasons why the prices of most agricultural produce are unstable in West
Africa. [ 4 marks ]

(b) Explain the following agricultural extension methods:
(i) method demonstration;
(ii) agricultural shows. [ 4 marks ]

(c) Discuss the cercospora leaf spot disease under the following headings:
(i) crop affected;
(ii) causative agent;
(iii) mode of transmission;
(iv) two symptoms;
(v) one preventive measure. [ 6 marks ]

(d) State four advantages of selection as a method of crop improvement. [ 4 marks ]

Study specimens A (BONE), B (HORN), C (HOOF), D (WATER) and E (COWPEA) carefully and answer the following questions

(a)(i) State one major feed nutrient in each of specimens A and E

(ii) Mention three economic uses each of Specirnens A, B, and C

(b)(i) State two functions of specimen D in farm animals

(ii) Highlight two benefits that a farmer would derive if specimen E if included in a crop rotation program.

Study specimens G (GOAT WEED), H (SIDA WEED), I (SPEAR GRASS), J (ELEPHANT GRASS), and K (PIG WEED) carefully and answer the following questions.

(a) State the botanical names of each of specimens G,H, I, J, and K.

(b) Give one reason why each of specimens 1, J, and K is difficult to control.

(c) Mention two uses of specimen J.

(d) State five ways in which specimens G, H, I, J, and K are of economic importance to farmers.