Unformatted text preview: Prior to the 19905 which form of marketing was most commori in the swine industry?
b. open market 0. vertical integration whereby packers owned hogs At what age should a pig reach market weight?
a. less than 100 days
b. less than 190 days Which of the following is not one of the suggested selection standards for boars?
a. litter size of 10 or more b. 8 fully developed, well spaced teats
0. average daily gain of 2.0 lbs or more
d. backfat of less than 0.8 inches Which of the following would be considered a good terminal sire breed? a. Yorkshire
b. Landrace c. Poland China
(1. Duroc Which of the following is the least critical time period relative to temperature of egg
incubation? a. ﬁrst several days
b. middle period
0. last several days What is the most desirable position for an egg during incubation?
a. air cell up
b. air cell down Which of the following is most important for incubation?
a. high oxygen, low carbon dioxide
b. 10w rmygen= high carbon dioxide What are we evaluating when we “candle” an egg?
c. shell thickness Which of the following is the most critical element in proper eggshell development? a. phosphorus
b. calcium c. selenium d. copper ...
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- Fall '06