Several of the swine breeds have been developed in the Unites States, such as the Chester White, ...

Several of the swine breeds have been developed in the Unites States, such as the Chester
  White, Duroc, Hampshire, Hereford, and Poland China.
 
  A. True B. False

Question 2

One of the oldest beef breeds is the Santa Gertrudis.
 
  A. True B. False

Question 3

Newborn animals have little antibody material in their blood at birth, and without
  colostrum they are very susceptible to diseases.
 
  A. True B. False

Question 4

A two breed criss-crossing system is as effective in maintaining high amounts of
  heterosis as a three-breed rotational crossbreeding system.
 
  A. True B. False

Question 5

Although the reproductive efficiency of both sows and boars is affected by heat stress,
  sows are affected more than boars.
 
  A. True B. False