ANSC 108 Exam 2
-Know which country is number one in swine production. - ANS-China
-Be familiar with the top swine producing states. - ANS-Iowa, Minnesota, North
Carolina, Illinois, Indiana.
-Know why the Texas Panhandle is good for swine production. - ANS-Environmental
soundness, water availability, feedstuffs, remote locations, and trainable workforce.
-Be familiar with the Terminal Crossbreeding system - ANS-All offspring are marketed,
and no replacement gilts are kept. Simple - 2 breeds. Complex - four breeds.
-Know advantages and disadvantages of Rotational Crossbreeding - ANS-Most popular,
market hogs as well as replacement gilts are produced, however lower heterosis than
terminal, and reduction in growth potential and carcass merit due to focus on maternal
traits.
-Be familiar with the main source of protein in the diet - ANS-Fat soybean meal.
-Be familiar with the six steps of baby pig processing - ANS-Clip needle teeth, cut naval
cord, iron injection, dock tails, castrate males, and ear notch.
-Know the factors that are used to calculate SPI. - ANS-Sow productivity index.
Numbers born alive, and adjusted litter weight, measures overall productivity.
-Be familiar with underline problems in swine - ANS-Inadequate number and poor
spacing of teats and pin, inverted or blunt nipples.
-Characteristics of the Jersey breed - ANS-smallest of the dairy breeds and color
ranges from light to dark brown. The most heat-tolerant of dairy breeds, produces milk
with a very high butterfat content.
Be able to describe important trends that have taken place in the dairy industry (i.e. milk
production, consumption trends, etc.) - ANS-Production trends shown increasing milk
production but decreasing cow numbers,
-In Texas, where does dairy rank among cattle/calves, cotton/cottonseed, and
poultry/poultry products - ANS-Number 4th for dairy product sales.
, -What factors contributed to the move of the dairy industry from East to West -
ANS-Climate, land prices, government regulations, change from traditional family to
business type farms.
-Know what BST is and how it works - ANS-Bovine Somatotropin, growth hormone,
increases milk yield.
-Know the characteristics of mastitis - ANS-Inflammation of the udder, main cause in
bacterial infection, number 1 money loser for dairymen. Abnormal milk, hot and swollen
teat.
-There are five major traits on which dairy cows are judged. What are they and how are
they weighted. - ANS-Frame 15%, Dairy character 20%, Body capacity 10%, Feet and
legs 15%, Udder 40%.
-What is a hutch? - ANS-Calves are tied to hutches at 1-3 days of age, to prevent
calf-to-calf contact and diseases, to monitor their stool, full supervision of feeding
behavior and intake, calves are kept in hutches until they are eating 4 lbs. of grain per
day.
-Be familiar with the concept of a free stall barn - ANS-Individual stalls bedded with
sand, cow comfort and prevents udders from being stepped on, provide cool shady
bedding place in the summer. Alleyways are swept daily; cows stay in same stall each
day.
-Know what makes a milking machine work - ANS-Vacuum, source of pulsation on the
teats so teat canal can open, milk comes out of teat due to pressure.
- Be familiar with the small intestine and the functions of each section -
ANS-Duodenum- Receives secretions from pancreas, secretes majority of digestive
enzymes. Jejunum- Active site of nutrient absorption. Ileum- Active site of nutrient
absorption.
-Know how the functions of the stomach in a monogastric - ANS-Storage of ingested
feed, physical breakdown.
-Be familiar with the function of the esophagus - ANS-Ingested material moves via a
series of muscular contractions knows as peristaltic waves.
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