Day 020 - 28 Jul 94 - Page 21
1 A. Yes. This is the study which helped to give rise to
the 105 milliamps minimum recommendation in the MAFF code
2 of practice, yes.
3 Q. On the following page, you give some times relating to the
time of resumption to breathing and the times are given in
4 respect of a stunning current of 60 milliamps.
A. Right.
5
MR. JUSTICE BELL: The 120 at the bottom of that page refers
6 back to what you told us a little while ago?
A. This is page 218?
7
Q. Yes.
8 A. That is correct.
9 MS. STEEL: I will not read all of it out because I am really
conscious of the fact we do not have much time left.
10
MR. JUSTICE BELL: Put the bits which you think particularly
11 help you if, in fact, they have not already been spoken to
by Dr. Gregory.
12
MS. STEEL: Right. On page 219 you are giving the time to
13 recovery following stunning at various levels of
milliamps. For 75 milliamps you say that time to recovery
14 was 19 seconds and that "with currents less than this some
birds were not stunned."
15 A. Yes.
16 Q. You go on to recommend that as a result of what you found
currents of less than 75 milliamps should never be used?
17 A. Yes, for a 50 herz sinosoidal AC, yes, definitely.
18 Q. Do you know why Sun Valley use the particular equipment
they do use?
19 A. The particular waveform and frequency is because they
believe it is associated with less carcass damage.
20
Q. It is unusual to be used in this country; it is American?
21 A. It is an American equipment, yes. There are not many
of that make in use in this country. I think they are the
22 only company that have that make in this country, yes.
23 Q. In the United States there are less regulations concerning
the welfare of poultry at slaughter, are there not?
24 A. I believe so, but I am not an expert on United States
regulations.
25
Q. Have you any reason to suppose that the type of frequency
26 they are using would mean that the birds would remain
stunned for much longer than that?
27 A. I said previously that we are doing an experiment on
this at the moment which is trying to answer your
28 question, because it is a very important question,
I appreciate that. It would be a little bit foolish of me
29 to anticipate the results without having the full results
in front of me when the experiment is completed.
30
I am aware that high frequencies, just from my subjective
