Professor Brett Glencross

Honorary Professor

Institute of Aquaculture Pathfoot Building, University of Stirling, Stirling, FK9 4LA

Professor Brett Glencross

Contact details

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http://www.stir.ac.uk/people/bdglencross

About me

Dr Brett Glencross is the Professor for Aquaculture Nutrition at the Institute of Aquaculture at the University of Stirling. He commenced this role in January 2016.

Prior to joining the University of Stirling he was the Technical Manager with the Aqua-Feed Division of Ridley, Australia’s largest provider of animal nutrition solutions and products. Prior to joining Ridley he was the Senior Principal Research Scientist for Aquaculture Feed Technologies research at the Commonwealth Scientific and Industrial Research Organisation (CSIRO) in Australia from 2009 to 2015.

He has Honours and Masters Degrees in Biochemistry from the University of Western Australia and a PhD in Animal Nutrition from the University of Queensland. 

Over the past 20 years he has worked in Australia, Cambodia, Canada, China, France, Japan, Norway, Saudi Arabia, Scotland, Thailand and Vietnam. He has led two major international development (ODA) projects from 2002 to 2015 in Vietnam and Cambodia. He has also worked closely with several major international aquaculture feed companies throughout Australia, Asia and Europe.

He was an editor for the journal Aquaculture Nutrition from 2008-2016. He was also a board director for the Asia-Pacific chapter of the World Aquaculture Society from 2013 - 2016. Additionally he is presently Chair of the Scientific Committee of the International Society for Fish Nutrition and Feeding (ISFNF), and was Chair of the Organising Committee for the 2014 ISFNF Conference held in Australia. 

As the scientist that led the development and commercialisation of the microbial bioactive ingredient Novacq™ at CSIRO he and his team were awarded that organisations’ prestigious Impact from Science Medal. In recognition of his contributions to the Australian prawn and barramundi farming sectors Professor Glencross was awarded the Industry Research and Innovation Award in 2012.

Research (4)

Professor Glencross is widely recognised as one of the world's leading scientists in the field of raw material (ingredient) evaluation, with regular reviews and papers published on this topic. In addition to this specialisation, he has a broad research background that includes many aspects of nutrition for aquaculture species. The five key areas he works in can be summarised as;

  1. Development and evaluation of raw materials (e.g. the quality assessment of global fishmeals, single-cell protein resources and novel oils for use in Atlantic salmon feeds). Current projects he leads on this area include:

    • FishMeal Qualities (FMQ): Understanding the variation in quality drivers of global fishmeal supplies.
    • MicroPro: Improving quality characteristics of Single-Cell-Protein (SCP; microbial) resources for use in Atlantic salmon diets.

  2. Refining the knowledge on essential amino acid and fatty acid requirements in fish and shrimp (e.g. defining omega-3 fatty acid requirements in Atlantic salmon, shrimp and marine fish). Current projects he leads on this area include:

    • OptiHealth: Optimising the health of Atlantic salmon through optimal omega-3 application.
    • ProtoROOS: Protonutrition, resilience, oxygen and omega-3's in Atlantic salmon nutrition.
    • BCAASM: Branched-chain amino acid metabolism in Atlantic salmon.

  3. Use of nutritional modelling strategies to better understand a holistic approach to diet design and management (e.g. development of mathematical models that optimise dietary protein, amino acid and energy specifications for various species). Current projects he leads on this area include:

    • SalmoFCE: Modelling the optimal nutritional requirements of King salmon.

  4. Examining the interactions between environment and nutrition (e.g. the impact that hypoxia has on nutrient and energy demands in fish). Current projects he leads on this area include:

    • ProtoROOS: Protonutrition, resilience, oxygen and omega-3's in Atlantic salmon nutrition.
    • HIFTOR: Exploring interactions between hypoxia inducible factor (HIF) and mechanistic target of rapamycin (mTOR) in regulation of appetite by rainbow trout during hypoxia.

  5. Assessment of nutrition x health interactions, including the development of functional feeds for animal health (this area encompasses several of the other projects already mentioned). Current projects he leads on this area include:

    • OptiHealth: Optimising the health of Atlantic salmon through optimal omega-3 application.
    • ProtoROOS: Protonutrition, resilience, oxygen and omega-3's in Atlantic salmon nutrition.
    • MicroPro: Improving quality characteristics of Single-Cell-Protein (SCP; microbial) resources for use in Atlantic salmon diets.

Projects

Investigating the potential of nutritional programming to improve the utilisation of sustainable feeds in aquaculture
PI: Dr Monica Betancor
Funded by: Biomar Ltd and Biotechnology and Biological Sciences Research Council
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ROBUST-SMOLT Impact of Early Life History in Freshwater Recirculation Aquaculture Systems on A. Salmon Robustness and Susceptibility to Disease at Sea
PI: Professor Herve Migaud
Funded by: Biotechnology and Biological Sciences Research Council
–

Optimising dietary fatty acids and lipids of Atlantic salmon to secure their health and welfare thorugh varying environmental conditions and life stages (Optihealth)
PI: Professor Brett Glencross
Funded by: The Norwegian Seafood Research Fund
–

Guidance and Support for Feed Development in Saudi Arabia CW7840
PI: Professor Brett Glencross
Funded by: Beacon Development Company Limited
–

Outputs (79)

Outputs

Article

Steroidogenic and innate immune responses in Atlantic salmon are influenced by dietary total lipid, long chain polyunsaturated fatty acids and dissolved oxygen

Huyben D, Cronin T, Bartie KL, Matthew C, Sissener NH, Hundal BK, Homer NZM, Ruyter B & Glencross B (2023) Steroidogenic and innate immune responses in Atlantic salmon are influenced by dietary total lipid, long chain polyunsaturated fatty acids and dissolved oxygen. Aquaculture, 564, Art. No.: 739028. https://doi.org/10.1016/j.aquaculture.2022.739028

Article

Effect of Greater Duckweed Spirodela polyrhiza Supplemented Feed on Growth Performance, Digestive Enzymes, Amino and Fatty Acid Profiles, and Expression of Genes Involved in Fatty Acid Biosynthesis of Juvenile Common Carp Cyprinus carpio

Shrivastav AK, Kumar G, Mittal P, Tocher DR, Glencross BD, Chakrabarti R & Sharma J (2022) Effect of Greater Duckweed Spirodela polyrhiza Supplemented Feed on Growth Performance, Digestive Enzymes, Amino and Fatty Acid Profiles, and Expression of Genes Involved in Fatty Acid Biosynthesis of Juvenile Common Carp Cyprinus carpio. Frontiers in Marine Science, 9, Art. No.: 788455. https://doi.org/10.3389/fmars.2022.788455

Article

Seasonal effects on growth and product quality in Atlantic salmon fed diets containing terrestrial oils as assessed by a long-term, on-farm growth trial

Mock TS, Francis DS, Jago MK, Miles PC, Glencross BD, Smullen RP, Keast RSJ & Turchini GM (2021) Seasonal effects on growth and product quality in Atlantic salmon fed diets containing terrestrial oils as assessed by a long-term, on-farm growth trial. Aquaculture Nutrition, 27 (2), pp. 477-490. https://doi.org/10.1111/anu.13200

Article

Dietary Lipid:Protein Ratio and n-3 Long-Chain Polyunsaturated Fatty Acids Alters the Gut Microbiome of Atlantic Salmon Under Hypoxic and Normoxic Conditions

Huyben D, Roehe BK, Bekaert M, Ruyter B & Glencross B (2020) Dietary Lipid:Protein Ratio and n-3 Long-Chain Polyunsaturated Fatty Acids Alters the Gut Microbiome of Atlantic Salmon Under Hypoxic and Normoxic Conditions. Frontiers in Microbiology, 11, Art. No.: 589898. https://doi.org/10.3389/fmicb.2020.589898

Article

A systematic review and analysis of long-term growth trials on the effect of diet on omega-3 fatty acid levels in the fillet tissue of post-smolt Atlantic salmon

Mock TS, Francis DS, Drumm DW, Versace VL, Glencross BD, Smullen RP, Jago MK & Turchini GM (2020) A systematic review and analysis of long-term growth trials on the effect of diet on omega-3 fatty acid levels in the fillet tissue of post-smolt Atlantic salmon. Aquaculture, 516, Art. No.: 734643. https://doi.org/10.1016/j.aquaculture.2019.734643

Article

Endogenous production of n-3 long-chain PUFA from first feeding and the influence of dietary linoleic acid and the α-linolenic:linoleic ratio in Atlantic salmon (Salmo salar)

Sprague M, Xu G, Betancor MB, Olsen RE, Torrissen O, Glencross BD & Tocher DR (2019) Endogenous production of n-3 long-chain PUFA from first feeding and the influence of dietary linoleic acid and the α-linolenic:linoleic ratio in Atlantic salmon (Salmo salar). British Journal of Nutrition, 122 (10), pp. 1090-1102. https://doi.org/10.1017/S0007114519001946

Article

Differences in energy utilisation efficiencies of digestible macronutrients in common carp (Cyprinus carpio) and barramundi (Lates calcarifer)

Phan LTT, Groot R, Konnert GDP, Masagounder K, Figueiredo-Silva AC, Glencross BD & Schrama JW (2019) Differences in energy utilisation efficiencies of digestible macronutrients in common carp (Cyprinus carpio) and barramundi (Lates calcarifer). Aquaculture, 511, Art. No.: 734238. https://doi.org/10.1016/j.aquaculture.2019.734238

Conference Paper (published)

Impact of dietary starch on extrahepatic tissue lipid metabolism in farmed European (Dicentrarchus labrax) and Asian seabass (Lates calcarifer)

Viegas I, Trenkner LH, Rito J, Palma M, Tavares LC, Jones JG, Glencross BD & Wade NM (2019) Impact of dietary starch on extrahepatic tissue lipid metabolism in farmed European (Dicentrarchus labrax) and Asian seabass (Lates calcarifer). In: volume 231. 13th International Congress on the Biology of Fish: Select papers from the Growth and Metabolism of Fishes and the Muscle Growth and Development symposia, Calgary, Alberta, Canada. Elsevier, pp. 170-176. https://doi.org/10.1016/j.cbpa.2019.02.025

Article

Postprandial plasma free amino acid profile and hepatic gene expression in juvenile barramundi (Lates calcarifer) is more responsive to feed consumption than to dietary methionine inclusion

Poppi DA, Moore SS, Wade NM & Glencross BD (2019) Postprandial plasma free amino acid profile and hepatic gene expression in juvenile barramundi (Lates calcarifer) is more responsive to feed consumption than to dietary methionine inclusion. Aquaculture, 501, pp. 345-358. https://doi.org/10.1016/j.aquaculture.2018.11.044

Article

The impact of dietary protein: lipid ratio on growth performance, fatty acid metabolism, product quality and waste output in Atlantic salmon (Salmo salar)

Mock TS, Francis DS, Jago MK, Glencross BD, Smullen RP, Keast RSJ & Turchini GM (2019) The impact of dietary protein: lipid ratio on growth performance, fatty acid metabolism, product quality and waste output in Atlantic salmon (Salmo salar). Aquaculture, 501, pp. 191-201. https://doi.org/10.1016/j.aquaculture.2018.11.012

Article

Altered levels of shorter vs long-chain omega-3 fatty acids in commercial diets for market-sized Atlantic salmon reared in seawater – Effects on fatty acid composition, metabolism and product quality

Mock TS, Francis DS, Jago MK, Glencross BD, Smullen RP, Keast RSJ & Turchini GM (2019) Altered levels of shorter vs long-chain omega-3 fatty acids in commercial diets for market-sized Atlantic salmon reared in seawater – Effects on fatty acid composition, metabolism and product quality. Aquaculture, 499, pp. 167-177. https://doi.org/10.1016/j.aquaculture.2018.09.020

Article

Thoughts for the Future of Aquaculture Nutrition: Realigning Perspectives to Reflect Contemporary Issues Related to Judicious Use of Marine Resources in Aquafeeds

Turchini GM, Trushenski JT & Glencross BD (2019) Thoughts for the Future of Aquaculture Nutrition: Realigning Perspectives to Reflect Contemporary Issues Related to Judicious Use of Marine Resources in Aquafeeds. North American Journal of Aquaculture, 81 (1), pp. 13-39. https://doi.org/10.1002/naaq.10067

Article

Critical variability exists in the digestible value of raw materials fed to black tiger shrimp, Penaeus monodon: The characterisation and digestibility assessment of a series of research and commercial raw materials

Glencross B, Blyth D, Wade N & Arnold S (2018) Critical variability exists in the digestible value of raw materials fed to black tiger shrimp, Penaeus monodon: The characterisation and digestibility assessment of a series of research and commercial raw materials. Aquaculture, 495, pp. 214-221. https://doi.org/10.1016/j.aquaculture.2018.05.026

Article

Dietary astaxanthin levels affect colour, growth, carotenoid digestibility and the accumulation of specific carotenoid esters in the Giant Tiger Shrimp, Penaeus monodon

Wade NM, Cheers S, Bourne N, Irvin S, Blyth D & Glencross B (2017) Dietary astaxanthin levels affect colour, growth, carotenoid digestibility and the accumulation of specific carotenoid esters in the Giant Tiger Shrimp, Penaeus monodon. Aquaculture Research, 48 (2), pp. 395-406. https://doi.org/10.1111/are.12888

Article

An analysis of partial efficiencies of energy utilisation of different macronutrients by barramundi (Lates calcarifer) shows that starch restricts protein utilisation in carnivorous fish

Glencross B, Blyth D, Bourne N, Cheers S, Irvin S & Wade N (2017) An analysis of partial efficiencies of energy utilisation of different macronutrients by barramundi (Lates calcarifer) shows that starch restricts protein utilisation in carnivorous fish. British Journal of Nutrition, 117 (4), pp. 500-510. https://doi.org/10.1017/S0007114517000307

Article

Effects of canola meal on growth, feed utilisation, plasma biochemistry, histology of digestive organs and hepatic gene expression of barramundi (Asian seabass; Lates calcarifer)

Ngo DT, Wade NM, Pirozzi I & Glencross B (2016) Effects of canola meal on growth, feed utilisation, plasma biochemistry, histology of digestive organs and hepatic gene expression of barramundi (Asian seabass; Lates calcarifer). Aquaculture, 464, pp. 95-105. https://doi.org/10.1016/j.aquaculture.2016.06.020

Article

Rapid effects of essential fatty acid deficiency on growth and development parameters and transcription of key fatty acid metabolism genes in juvenile barramundi (Lates calcarifer)

Salini MJ, Turchini GM, Wade NM & Glencross B (2015) Rapid effects of essential fatty acid deficiency on growth and development parameters and transcription of key fatty acid metabolism genes in juvenile barramundi (Lates calcarifer). British Journal of Nutrition, 114 (11), pp. 1784-1796. https://doi.org/10.1017/S0007114515003529

Article

Marginal efficiencies of long chain-polyunsaturated fatty acid use by barramundi (Lates calcarifer) when fed diets with varying blends of fish oil and poultry fat

Salini MJ, Irvin S, Bourne N, Blyth D, Cheers S, Habilay N & Glencross B (2015) Marginal efficiencies of long chain-polyunsaturated fatty acid use by barramundi (Lates calcarifer) when fed diets with varying blends of fish oil and poultry fat. Aquaculture, 449, pp. 48-57. https://doi.org/10.1016/j.aquaculture.2015.02.027

Article

Using Near Infrared Reflectance Spectroscopy (NIRS) to predict the protein and energy digestibility of lupin kernel meals when fed to rainbow trout, Oncorhynchus mykiss

Glencross B, Bourne N, Hawkins WE, Karopoulos M, Evans D, Rutherford N, McCafferty P, Dods K, Burridge P, Veitch C, Sipsas S, Buirchell B & Sweetingham M (2015) Using Near Infrared Reflectance Spectroscopy (NIRS) to predict the protein and energy digestibility of lupin kernel meals when fed to rainbow trout, Oncorhynchus mykiss. Aquaculture Nutrition, 21 (1), pp. 54-62. https://doi.org/10.1111/anu.12137

Article

An analysis of the effects of different dietary macronutrient energy sources on the growth and energy partitioning by juvenile barramundi, Lates calcarifer, reveal a preference for protein-derived energy

Glencross B, Blyth D, Irvin S, Bourne N & Wade NM (2014) An analysis of the effects of different dietary macronutrient energy sources on the growth and energy partitioning by juvenile barramundi, Lates calcarifer, reveal a preference for protein-derived energy. Aquaculture Nutrition, 20 (6), pp. 583-594. https://doi.org/10.1111/anu.12111

Article

Effect of ration level and dietary docosahexaenoic acid content on the requirements for long-chain polyunsaturated fatty acids by juvenile barramundi (Lates calcarifer)

Morton KM, Blyth D, Bourne N, Irvin S & Glencross B (2014) Effect of ration level and dietary docosahexaenoic acid content on the requirements for long-chain polyunsaturated fatty acids by juvenile barramundi (Lates calcarifer). Aquaculture, 433, pp. 164-172. https://doi.org/10.1016/j.aquaculture.2014.05.047

Article

Quantitative methods to measure pigmentation variation in farmed Giant Tiger Prawns, Penaeus monodon, and the effects of different harvest methods on cooked colour

Wade NM, Paulo C, Goodall J, Fischer M, Poole S & Glencross B (2014) Quantitative methods to measure pigmentation variation in farmed Giant Tiger Prawns, Penaeus monodon, and the effects of different harvest methods on cooked colour. Aquaculture, 433, pp. 513-519. https://doi.org/10.1016/j.aquaculture.2014.07.014

Article

Interactions between dietary docosahexaenoic acid and other long-chain polyunsaturated fatty acids on performance and fatty acid retention in post-smolt Atlantic salmon (Salmo salar)

Glencross B, Tocher DR, Matthew C & Bell JG (2014) Interactions between dietary docosahexaenoic acid and other long-chain polyunsaturated fatty acids on performance and fatty acid retention in post-smolt Atlantic salmon (Salmo salar). Fish Physiology and Biochemistry, 40 (4), pp. 1213-1227. https://doi.org/10.1007/s10695-014-9917-8

Article

Influence of dietary docosahexaenoic acid in combination with other long-chain polyunsaturated fatty acids on expression of biosynthesis genes and phospholipid fatty acid compositions in tissues of post-smolt Atlantic salmon (Salmo salar)

Betancor M, Howarth FJE, Glencross B & Tocher DR (2014) Influence of dietary docosahexaenoic acid in combination with other long-chain polyunsaturated fatty acids on expression of biosynthesis genes and phospholipid fatty acid compositions in tissues of post-smolt Atlantic salmon (Salmo salar). Comparative Biochemistry and Physiology - Part B: Biochemistry and Molecular Biology, 172-173, pp. 74-89. https://doi.org/10.1016/j.cbpb.2014.04.007

Conference Paper (published)

Fate of finfish aquaculture waste – the importance of wild fish in nutrient export

Felsing M, Glencross B & Telfer T (2002) Fate of finfish aquaculture waste – the importance of wild fish in nutrient export. In: Proceedings of the 2002 Meeting of the Australian Marine Sciences Association. Tropical Temperate Transitions: A conference organised by the Australian Marine Sciences Association, Fremantle, Western Australia, 10.07.2002-12.07.2002. Perth, West Australia: Australia Marine Sciences Association. https://www.amsa.asn.au/conference/amsa2002_perth/AMSA2002_Program.pdf?phpMyAdmin=JURm0KeEWJJMSj%2CxwbEH7zLK989