ANSC 1000
Lab Final Problems


Show all work and circle your answer for full credit.  
Do your work in a neat and orderly manner such that 
we can follow your methods.  Carry all answers to 
2 decimal places (for example, 2.43 or 1.70).  Units 
must be included with your answer.
  
1. (30 points)  You purchased steers weighing 450 pounds to
   put in the feedlot.  You expect to market them when they
   weigh 1100 pounds.  You expect them to have an ADG of 3.0
   lb/day and a F/G of 7.5 over the entire feeding period.
  
   A. (4 points)  How many days will you have these steers on
      feed?   (Round to a whole day.)
  






  
  
   B. (4 points)  If the diet you will be feeding is 30%
      broiler litter and the rest is corn, how many pounds of
      each ingredient will you need to purchase per steer?  
  








  
  
   C. (4 points)  If corn costs $3.00/bu and broiler
      litter costs $25.00/ton, what is the cost of feed
      per steer?   (One bu. of corn = 56 lb.   One ton
      = 2000 lb.)
  







  
  
   D. (3 points)  Referring back to part C, what are the feed
      costs per hundredweight of gain?
  






  

   E. (6 points)  If the purchase price of the steers was
      $84.50/cwt, total feed costs were $220, and other costs
      added up to $85, how much would you have to sell them
      for to break even?  (Answer in $/cwt)
 












  
  
   F. (3 points)  Referring back to part E, what price (in
      $/cwt) would you have to receive for the steers to make
      a $25 profit?
  









  

   G. (4 points)  If when you sold these steers, you received
      $66/cwt instead of your break even price in part E, 
      what would the margin be?  (You must state whether it is
      negative or positive.)
  




  
  
   H. (2 points)  A cow had her first calf on February 2,
      1993, when she was 24 months old.  Her second calf was
      born February 20, 1994, and her third calf was born
      February 28, 1995.  What is her calving interval?