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
