Genetic Technology (Precision Breeding) Bill (Third sitting)

Kerry McCarthy Excerpts

Committee stage
Thursday 30th June 2022 Public Bill Committees

[The Chair]

Mr Lewis, we are straying from the topic. I have to stop you because I have three other Members who want to remain on topic—Kerry, Andrew Bowie and Katherine Fletcher. We will move on because we have strayed off the topic. I have been very patient and I did let it go on for a little while.

[Kerry McCarthy (Bristol East) (Lab)]

Q On a similar point to Clive’s, I note what Dr Rice said about the virus coming from outside, but from my reading of the syndrome, it spreads by direct contact between animals, as well as by natural breeding, artificial insemination and a variety of other things. There is the concern that the more animals you have in one place, the more likely it is that the disease will spread.

I note that the syndrome was first identified in the States in the late 1980s, and now it has spread worldwide in most swine-producing countries. I would be interested to know your take as to why it has spread to that extent. Is it because there is more intensive farming, in the same way that we saw with things such as bovine TB? I get what you are saying about the farm animal welfare codes, although they are not very well adhered to—there is a separate debate about that. If this would permit more animals to be kept in intensive situations because the virus would not spread, does that not leave the door open to people to argue that that is the path we should be going down?

Dr Lewis: I appreciate the question. We can look at this in a couple of ways. Just as pure history—as I say, it was my pet project with my PhD—the PRRS virus was originally identified in two separate locations at the same time. One was in North America—Minnesota—and one in Lelystad in the Netherlands. It was pretty much simultaneously defined in Europe and the United States. Did the movement of animals globally—breeding stock and so on—facilitate the global spread? I think that is probably fair, but that needs to continue to happen as we move the geneplasm around the world and connect populations.

The number of stock is an interesting question. PRRS is very infectious, so once you have got it into a farm, it does not matter if there are 10 pigs or 100 pigs in the farm; the whole farm is probably going to get it. The way that you look at it is that the barrier to entry into the farm is more important than how many pigs are in the farm. That is why we continue to refine biosecurity practices.

[Kerry McCarthy]

I was talking more about proximity than about numbers.

[Jo Churchill]

Professor Hammond might be interesting on this, because he deals with avian flu, and obviously that might broaden it to the wild community.

[The Chair]

If you want to do that, you have less than a moment. It is for all Members to direct the questions to who they would like to hear answer them.

[Kerry McCarthy]

Q It is not so much numbers, but if you have a smaller number of pigs, they tend not to be kept in such close proximity.

Dr Lewis: My final point would be that if we look at gene editing, or genome precision breeding on the other extreme, one of the reasons why we keep animals inside is to protect them from disease, whether it is flu or PRRS. One different way of looking at it is that the use of precision breeding technology could facilitate the extensification of agriculture.

Professor Whitelaw: You have to remember that a virus does not choose which animal it is going to infect. It will infect an animal in whichever farming system it is in. This technology, equally, can benefit all farming systems.

--- Later in debate ---

[The Chair]

Okay, with two minutes left, is it possible to get Kerry McCarthy and Andrew Bowie in?

[Kerry McCarthy]

Q This will possibly have a one-word answer. We have heard quite a few witnesses say that the farm animal welfare codes are sufficient in terms of regulating some of our concerns bout welfare. This question is particularly for Professor Campbell and Mr Stevenson. Do you think they are adequate?

Peter Stevenson: No, the codes do not address breeding issues in any very clear way, other than sometimes through a broad principle to say, “Yes, be careful how you breed in order not to harm animal welfare.” We have a huge amount of legislation in this country, but just one or perhaps two provisions that deal with breeding, and they are so broadly worded that they have never had any impact on the harms done by selective breeding. To go back to Katherine Fletcher’s point, I think it is vital that there is something in this Bill to protect animal welfare, because the current legislation, as I said, has really very little on breeding, which is why we have all these problems. If this Bill is going ahead—I know it is—let us at least have some good, well-crafted animal welfare protections.

[Katherine Fletcher]

Is not the implication of that that you would be telling the scientists what to do?