by
Wesley Malcorps, PhD student, The Institute of Aquaculture, University of
Stirling, UK and Björn Kok, MatureDevelopment BV, The Netherlands
Currently, more than 50 percent of shrimp supply originates from aquaculture. The shrimp industry is one of the dominant consumers of fishmeal in the aquaculture sector.
However, in order to meet the demand for a growing industry in the face of a finite supply of marine ingredients, feed manufacturers have decreased the inclusion of fishmeal in commercial diets.
In 2000, 19-40 percent fishmeal was included in shrimp feed, however, that fell to 11-23 percent in 2014.
Over the years, and in response to fishmeal price increases, fishmeal has been increasingly substituted by plant ingredients. This approach is widely recognised as being more environmentally friendly due to the reduced pressure on the marine environment.
However, substituting fishmeal in aquaculture feeds with plant ingredients may not be as beneficial for the environment as many people think, according to a new study.
This research was conducted by an international and multidisciplinary team of experts and academics from the aquaculture industry and beyond, including; MatureDevelopment BV (The Netherlands); Institute of Aquaculture, University of Stirling (UK); Research Institute for Agriculture, Fisheries and Food (Belgium); Mexico Aquaculture Research Inc (Mexico); Association of International Seafood Professionals (Australia); Aquaculture without Frontiers (USA); Universidad Tecnológica del Mar de Tamaulipas (Mexico); IFFO, The Marine Ingredients Organisation (UK); Utrecht University (The Netherlands); University of Zürich (Switzerland); and Harper Adams University (UK).
The study assessed the impact on marine and terrestrial resources, such as fish, land, freshwater, nitrogen and phosphorus by modelling incremental fishmeal substitution, from 20-30 percent to zero, by plant ingredients.
This includes ingredients, such as soybean meal concentrate, rapeseed meal concentrate, pea protein concentrate and corn gluten meal, commonly included in modern shrimp feeds for the two main shrimp species produced globally, whiteleg shrimp (Litopenaeus vannamei) and black tiger shrimp (Penaeus monodon).
The results show that complete fishmeal substitution by plant ingredients could lead to an increasing demand for freshwater (up to 63 percent), land (up to 81 percent), and phosphorus (up to 83 percent). These are significant increases, as only a share of 20–30 percent of the feed is actually substituted.
Read more HERE.
Currently, more than 50 percent of shrimp supply originates from aquaculture. The shrimp industry is one of the dominant consumers of fishmeal in the aquaculture sector.
However, in order to meet the demand for a growing industry in the face of a finite supply of marine ingredients, feed manufacturers have decreased the inclusion of fishmeal in commercial diets.
In 2000, 19-40 percent fishmeal was included in shrimp feed, however, that fell to 11-23 percent in 2014.
Over the years, and in response to fishmeal price increases, fishmeal has been increasingly substituted by plant ingredients. This approach is widely recognised as being more environmentally friendly due to the reduced pressure on the marine environment.
However, substituting fishmeal in aquaculture feeds with plant ingredients may not be as beneficial for the environment as many people think, according to a new study.
This research was conducted by an international and multidisciplinary team of experts and academics from the aquaculture industry and beyond, including; MatureDevelopment BV (The Netherlands); Institute of Aquaculture, University of Stirling (UK); Research Institute for Agriculture, Fisheries and Food (Belgium); Mexico Aquaculture Research Inc (Mexico); Association of International Seafood Professionals (Australia); Aquaculture without Frontiers (USA); Universidad Tecnológica del Mar de Tamaulipas (Mexico); IFFO, The Marine Ingredients Organisation (UK); Utrecht University (The Netherlands); University of Zürich (Switzerland); and Harper Adams University (UK).
The study assessed the impact on marine and terrestrial resources, such as fish, land, freshwater, nitrogen and phosphorus by modelling incremental fishmeal substitution, from 20-30 percent to zero, by plant ingredients.
This includes ingredients, such as soybean meal concentrate, rapeseed meal concentrate, pea protein concentrate and corn gluten meal, commonly included in modern shrimp feeds for the two main shrimp species produced globally, whiteleg shrimp (Litopenaeus vannamei) and black tiger shrimp (Penaeus monodon).
The results show that complete fishmeal substitution by plant ingredients could lead to an increasing demand for freshwater (up to 63 percent), land (up to 81 percent), and phosphorus (up to 83 percent). These are significant increases, as only a share of 20–30 percent of the feed is actually substituted.
Read more HERE.
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