Day 018 - 26 Jul 94 - Page 09

     
     1        reached by the smaller birds?
              A.  That is a common occurrence in the broiler industry.
     2
         Q.   What about Sun Valley?
     3        A.  They have corrected for that by having a beam which
              has nipple drinkers set at different heights for different
     4        sized birds.
 
     5   Q.   So whatever one's size one could get a drink of water?
              A.  Yes, in my view, that is to be commended.  It would be
     6        good to see that more commonly practiced in the broiler
              industry.  Dehydration in under-sized birds is, I think, a
     7        serious welfare problem.
 
     8   Q.   Dehydration in under-sized birds?
              A.  Because they cannot reach the nipple drinkers.
     9
         Q.   How do you, experts, measure the power of the lighting in
    10        animal accommodation?
              A.  With a light meter which measures the intensity of
         light in a unit called lux.
 
    12   Q.   What was the lux at Sun Valley?
              A.  I would have to check, but it was around 80 lux --
    13        correct me if I am wrong in my report.
 
    14   Q.   No.  In your report you said 75 to 80 lux.  If there is
              any detail you cannot remember without referring to your
    15        report, then if you ask his Lordship, I am sure you will
              be allowed to do so.
    16
         MR. JUSTICE BELL:  I think it might be a good idea if you had
    17        your report just one side open.
 
    18   MR. RAMPTON:  If there is anything you need to refer to then
              you can look at it.
    19
         MR. JUSTICE BELL:  The same applies to any other expert witness
    20        in the case.
 
    MR. RAMPTON:  It is yellow and its number is IX.
 
    22   MR. JUSTICE BELL:  What lux are we at in here so I can get some
              feel for it, Dr. Gregory, in this courtroom now?
    23        A.  I will tell you what it is in my office because I have
              actually measured it.
    24
         MR. JUSTICE BELL:  The trouble is I have not been in your
    25        office.
              A.  True.  I would describe two situations in my office, 
    26        if I may, and then we will say it is somewhere between 
              those two. In my office, without the lights on, the 
    27        reading here is about 420 lux.  With the lights on it is
              about 1,000 lux on the table.  So for that pad of paper in
    28        front of you it might be somewhere within that range.  It
              is possible to read a piece of print at an acceptable
    29        distance when having background lighting of about 60 lux.
 
    30   MR. JUSTICE BELL:  That depends on your eyesight somewhat.  Can
              you give me another example of what 80 lux would be?