Two factors that have a major influence on profitability in swine production are _____ and _____.
a. number of pigs weaned per sow per year; feed efficiency
b. breed; adaptability to environment
c. number of pigs weaned per sow; adaptability to environment
d. breed; feed efficiency
Question 2Boars should be castrated before they are _____ week(s) old.
a. 1 c. 3
b. 2 d. 4