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(f) Pig litters range in size from about three to eighteen piglets per litter. The average number
of piglets surviving in litters was determined three and six weeks after birth. Figure 3
gives the results of the investigation. DO NOT WRITE IN THIS AREA
Figure 3. Litter size and piglet survival DO NOT WRITE IN THIS AREA
Adapted from Problems in Animal Physiology, John Murray. 50,
Albemarle St. London WLX 4BD, M.K. Sands, 1975.
(i) Complete the table below to show the difference in survival of piglets in the two
litters.
TABLE 3. LITTER SIZE AND SURVIVAL IN PIGS
Number of Average number of Average number of
Piglets in Piglets surving after Piglets surviving after
Litter at birth 3 weeks 6 weeks
3
9 DO NOT WRITE IN THIS AREA
15
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