Day 091 - 17 Feb 95 - Page 22


     
     1        their cross-examination of Doctor Gregory, purports to know
     2        a good deal about the subject.
     3
     4        If there are specific areas in which Sun Valley's care of
     5        its poultry is to be criticised as being defective or
     6        inefficient, and the Defendants witness comes along and
     7        then says things which were never put to Dr. Pattison and
     8        ought to have been, that is quite a different position
     9        because then I am not in any position to deal with it,
    10        Dr. Pattison having gone.
    11
    12   MR. JUSTICE BELL:  It is all very tiresome because one has to
    13        consider the question of recall of a witness.
    14
    15   MR. RAMPTON:  Exactly.
    16
    17   MR. JUSTICE BELL:  If you are putting a positive case rather
    18        than going on a voyage of explanation, which latter
    19        endeavour you should restrict as much as possible,
    20        concentrating on the matters which are really going to
    21        count at the end of the day in this case, if you do have a
    22        positive case on a topic, large topic or more detailed
    23        topic, then put it.
    24
    25   MR. MORRIS (To the witness):  Mr. Pattison, you talked about
    26        antibiotics in feed as a way of countering disease or
    27        weaknesses or whatever, and you have talked also about some
    28        of these diseases, about vaccines.  Could you explain how
    29        the vaccines are administered?  Are they routine throughout
    30        the lives or are just they done on individual birds?  How
    31        does it works?
    32        A.  There are two types of vaccines.  There are live
    33        vaccines and kill vaccines.  Live vaccines are live viruses
    34        which are administered to the birds by the drinking water
    35        system or by spray.  Kill vaccines are injected into birds
    36        individually.  The normal procedure is to use live vaccines
    37        for broilers and we would routinely vaccinate broilers for
    38        Gumboro disease, Newcastle disease and infectious
    39        bronchitis and ----
    40
    41   Q.   Carry on, I am sorry.
    42        A.  The breed of birds would get live vaccines in the
    43        rearing phase and then they would get an injection of
    44        killed vaccine before they go to the laying houses.
    45
    46   Q.   I did not quite get all that down, but the live vaccines to
    47        the broilers, that was the Gumboro, Newcastle and
    48        bronchitis?
    49        A.  Yes.
    50 
    51   Q.   That would be in the drinking water throughout their lives, 
    52        would it? 
    53        A.  No, it is given as a single administration either in
    54        the drinking water or by spray, depending on the type of
    55        vaccine.
    56
    57   Q.   What time would that happen?
    58        A.  They receive the Newcastle vaccine at 10 days and they
    59        receive the Gumboro and IB vaccine at 18 days.
    60

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