QCAA Agricultural Science Animal production B
5 sample questions with marking guides and sample answers
Most carbohydrate absorption in monogastric animals occurs in the
caecum.
stomach.
large intestine.
small intestine.
The most effective alternative method to mulesing in sheep is
breeding sheep without wool in the breech area.
moving sheep to a new paddock.
vaccinating for diseases.
providing pain relief.
The table shows the nutrient composition of four commercially available pig feeds.
| Nutrient | Feed A | Feed B | Feed C | Feed D |
|---|---|---|---|---|
| Crude protein (%) | 13.0 | 15.0 | 16.0 | 22.0 |
| Crude fat (%) | 2.0 | 2.5 | 2.0 | 3.5 |
| Crude fibre (%) | 6.0 | 8.5 | 5.0 | 3.3 |
| Digestible energy (MJ/kg) | 12.6 | 13.5 | 13.5 | 15.0 |
Determine the most suitable feed for pigs at the end of their production cycle for the domestic market. Justify your decision using data from the table.
The table shows the average weight gain of two groups of pigs recorded over 25 days and the total feed consumed. There were 10 pigs in each group.
| Group | Total feed consumed (kg) | Weight gained per pig (kg/day) | Feed conversion ratio |
|---|---|---|---|
| A | 830 | 3.0 | |
| B | 750 | 2.5 | 1.2 |
Calculate the feed conversion ratio for the pigs in group A. Show your working.
Draw a conclusion about which group of pigs is the most efficient at converting feed into meat. Justify your conclusion.
Some egg producers use battery or caged chickens to produce eggs.
Identify an ethical issue with this type of production.
Identify a welfare issue with this type of production.
Explain the difference between ethical and welfare issues.
Identify two physical characteristics of a Bos indicus animal that make this animal suited to tropical production areas of Australia.
Choose one of the physical characteristics identified in Question 4a) and describe how this characteristic makes the animal suited to tropical production areas of Australia.