Day 103 - 14 Mar 95 - Page 44
1 time so that is the way that that is managed.
2
3 Q. Which one is that, the 24 hour one?
4 A. Amoxicillin.
5
6 MR. JUSTICE BELL: While you are on that, are you going to ask
7 about the answer you got the other day about antibiotic
8 resistance from Mr. Kenny? I will ask it, if you like.
9
10 MS. STEEL: I cannot remember.
11
12 MR. JUSTICE BELL (To the witness): Because I think it was
13 inconsistent with something you said when you were
14 previously here. Mr. Kenny suggested, when being asked
15 about a build up of human resistance to antibiotic effect,
16 that the antibiotics used in animals were not normally the
17 same as those used in human beings. You had said when you
18 were last with us, if my recollection is correct, that,
19 generally speaking, the same panorama of antibiotics were
20 used?
21 A. There is a similar -- there are similar compounds used
22 for treating animals. The only thing is that there is a
23 much wider variety of antibiotics that are licensed for
24 treatment of human beings. So, while we have a choice of
25 maybe only three or four antibiotics for human beings, they
26 would have a choice of those plus some others.
27
28 Q. But the ones which you use are ones which are in the
29 therapy list for ---
30 A. Yes they could be, yes.
31
32 Q. -- people?
33 A. That is right, yes.
34
35 MS. STEEL: The antibiotics in the water supply, you would still
36 have to withdraw the antibiotics at a time in the middle of
37 the treatment for the male birds, would you not?
38 A. It depends when you start the treatment.
39
40 Q. There would be some circumstances when that would happen?
41 A. It could happen, yes.
42
43 MR. JUSTICE BELL: That is what you have just said, that if you
44 put it in the water, instead of the feed, you may be able
45 to keep it down to 24 hours or 48 hours rather than the
46 longer period which would prevail if it was in feed?
47 A. Yes.
48
49 Q. But you still have to have the one or two day break?
50 A. That is right.
51
52 MS. STEEL: That could affect the likelihood of birds being
53 cured or whatever?
54 A. Yes, it could do.
55
56 Q. What do you do when the antibiotics are in the water supply
57 and you have to withdraw them? Do you actually clean out
58 the whole system?
59 A. No, the antibiotic goes through the system. We
60 normally use a pulse dosing system where the daily dose is
