Feed – Insects gested recently that the UK and Norway could be feeding salmon diets containing insects by 2018. At a Network on Insects in the Circular Economy (NICE) meeting in Bergen in December, May-Helen Holme said Cargill is looking at several new ingredients to meet the increasing demand for sustainable aquafeeds. ‘Insects are suited for salmon farming in Europe,’ she said, but the regulations would have to be in place, and so would the appropriate volumes. ‘We would need at least 40,000 tonnes [of insect meal] before we can look at it,’ she said, adding that Cargill would like to participate in developing such feeds. Jason Drew has no doubt that the capacity is possible. ‘Really, 40,000 tonnes isn’t that much and I think we as an industry will get there within the next ﬁve years,’ he said. ‘The salmon industry is very important, it’s a key part of the food chain and very technically and scientiﬁcally advanced as an industry, and we would like to supply into that industry over time and build partnerships with the industry for diﬀerent types of ﬁsh and life stage feeds. ‘We’re not interested in making feeds, we’re just interested in supplying the protein into those feeds. ‘One of my ambitions is to help build the ﬁrst zero ﬁsh in to ﬁsh out ﬁsh farm, replacing ﬁshmeal with insect meal.’ He believes he and David have established the beginnings of ‘a well-structured industry’. Meeting South Africa’s regulatory standards and completing the EIAs (Environmental Impact Assessments) ‘took a long, long time – I think our submission was 800 pages’. ‘Now we’ve got not only that documented evidence of what we’ve done but we’ve also got a site we can show people. They can walk around and see what a ﬂy factory looks like. The roof isn’t going to blow oﬀ and infest central Berlin, or wherever it might be, with billions of ﬂies!’ He said they have made a lot of mistakes along the way but have worked through them and now feel they are ‘beginning to make a diﬀerence’. ‘We’re not making a diﬀerence in the feed market yet – we would need three or four factories here to begin to have an impact on the protein side. But on the waste side there’s a huge amount of waste that’s not now going into landﬁll.’
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WHAT IS IT?
Black soldier ﬂy eggs collected from AgiProtein’s ﬂy rooms are sprinkled on to organic waste, and the maggots are then dried and defatted and ground into a high quality protein meal that can replace up to 100 per cent of ﬁshmeal. This MagMeal can be blended into a variety of animal feeds, can lead to a reduction in required antibiotic use, and has been shown to result in healthy ﬁsh
“is aEUbigmove step
forward for the environment and for world food security
and poultry. It also results in improved feed conversion rates compared to ﬁshmeal and soymeal, and can nutritionally replace both in monogastric animal diets, including chickens, pigs, ﬁsh, and companion animals. MagMeal larvae are washed and dried under strict environmental conditions to yield the highest quality protein. The protein content of the ﬁnal product is higher than whole dried larvae with a fat content below 10 per cent. MagOil is a natural fat extracted from whole dried larvae, and is highly palatable to animals. It is produced when whole dried larvae go through the extrusion process and becomes MagMeal. The extruded fat is puriﬁed and available as a feed ingredient.
‘It’s an extraordinarily circular business. We take waste and convert it back into protein and use up all the nutrients we would otherwise throw away. We have a very positive impact on landﬁll.’ Wherever they set up factories they try to make protein sourced from local organic waste. ‘Organic matter going into landﬁll is a disaster,’ said Jason, ‘because you don’t have ﬂies in the ground, you just have bacteria, and that’s why you end up with bacterial soups. Landﬁlls do eventually leak because nothing lasts forever. ‘Around the world they are increasingly banning organics in landﬁll. In the Middle East they are doing it hard and fast because much of their drinking water comes from their ground water. And they are ﬁnding that their landﬁlls are posing a risk to their water tables. So they’re very keen to take the organics out. ‘And that’s where we come in – there are really only two things you can do with organics, one is to make biogas and the other is to recycle the nutrients into usable protein. ‘I think our real challenge is more food security based than energy based as we move forward into the next decades. People can live without a bit of air con and light but they can’t live without food.’ AgiProtein has conducted extensive trials feeding its MagMeal to tilapia, abalone and trout in southern Africa, and it is also looking at salmon trial opportunities in Chile. It ships products to various diﬀerent places to help develop local markets before people build plants so that when a factory comes on line it can start to make a dent. But the brothers agree that selling MagMeal is easier than making it. ‘If we had ten times our production we could sell it all the same day,’ said Jason. ‘It is about making it. One part is the biology part and we’ve got that well under control. Our engineering side we couldn’t get right at ﬁrst. ‘We’ve now got it right and we’ve got more work to do in terms of product ﬁnishing and polishing so we can make a product with diﬀerent levels of protein in it, from 55 per cent up to 68 per cent, by using diﬀerent processes to extract more oil. ‘We have to ﬁnd out exactly what our customers want and then make our products to meet those requirements. We are using production to
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