A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food

Abstract The semiterrestrial isopod, Ligia exotica represents one of the oldest documented species introductions of marine organisms and is known as an intermediate form between marine and strictly terrestrial isopods. In order to explore the potential value of Ligia as an animal food source, this s...

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Autores principales:	Lele Xu, Yongqin Li, Yao Liu, Haifeng Mi, Xiang Jiang, Yulin Sun, Haiyong Zhao, Daohai Chen, Liyun Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/db52c52c338a4c47b356af23dacd4fd5
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spelling	oai:doaj.org-article:db52c52c338a4c47b356af23dacd4fd52021-12-02T13:26:58ZA comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food10.1038/s41598-021-86561-z2045-2322https://doaj.org/article/db52c52c338a4c47b356af23dacd4fd52021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86561-zhttps://doaj.org/toc/2045-2322Abstract The semiterrestrial isopod, Ligia exotica represents one of the oldest documented species introductions of marine organisms and is known as an intermediate form between marine and strictly terrestrial isopods. In order to explore the potential value of Ligia as an animal food source, this study focused on the growth rate under laboratory rearing conditions and conducted a detailed analysis of the overall nutrient content of the species in comparison to two other marine food media (krill and fish meal). Evaluation of the growth rate of juveniles suggests it is a relatively fast-growing species of the Ligiidae family. The essential amino acids content Ligia meal is the lowest amongst the three studied media but the proportion of flavor amino acids, and in particular taurine, was higher. The most restricted amino acids of isopod meal are methionine and cysteine. The significantly unbalanced amino acid composition of Ligia meal may affect the absorption and utilization by consumers. In terms of fatty acids, the total polyunsaturated fatty acids in the isopod is very low. A total of 12 vitamins were examined. The VK1, VE, VB2, VB3, VB5 content of isopod meal were significantly higher than those of krill meal and fish meal. Similarly, most of the 11 mineral elements are highest in the isopod meal. Ligia therefore offers potential as an alternative natural food source in animal given the growth rate under culture and the overall nutrient content. But Ligia collected in most of the field would be deemed unfit for human consumption because of the relatively low nutritional value and heavy metal content exceeding the provided standard. Further study is warranted to elucidate the biological characteristics of isopods and how its diet is reflected in its nutritional value to consumers.Lele XuYongqin LiYao LiuHaifeng MiXiang JiangYulin SunHaiyong ZhaoDaohai ChenLiyun WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lele Xu Yongqin Li Yao Liu Haifeng Mi Xiang Jiang Yulin Sun Haiyong Zhao Daohai Chen Liyun Wang A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food
description	Abstract The semiterrestrial isopod, Ligia exotica represents one of the oldest documented species introductions of marine organisms and is known as an intermediate form between marine and strictly terrestrial isopods. In order to explore the potential value of Ligia as an animal food source, this study focused on the growth rate under laboratory rearing conditions and conducted a detailed analysis of the overall nutrient content of the species in comparison to two other marine food media (krill and fish meal). Evaluation of the growth rate of juveniles suggests it is a relatively fast-growing species of the Ligiidae family. The essential amino acids content Ligia meal is the lowest amongst the three studied media but the proportion of flavor amino acids, and in particular taurine, was higher. The most restricted amino acids of isopod meal are methionine and cysteine. The significantly unbalanced amino acid composition of Ligia meal may affect the absorption and utilization by consumers. In terms of fatty acids, the total polyunsaturated fatty acids in the isopod is very low. A total of 12 vitamins were examined. The VK1, VE, VB2, VB3, VB5 content of isopod meal were significantly higher than those of krill meal and fish meal. Similarly, most of the 11 mineral elements are highest in the isopod meal. Ligia therefore offers potential as an alternative natural food source in animal given the growth rate under culture and the overall nutrient content. But Ligia collected in most of the field would be deemed unfit for human consumption because of the relatively low nutritional value and heavy metal content exceeding the provided standard. Further study is warranted to elucidate the biological characteristics of isopods and how its diet is reflected in its nutritional value to consumers.
format	article
author	Lele Xu Yongqin Li Yao Liu Haifeng Mi Xiang Jiang Yulin Sun Haiyong Zhao Daohai Chen Liyun Wang
author_facet	Lele Xu Yongqin Li Yao Liu Haifeng Mi Xiang Jiang Yulin Sun Haiyong Zhao Daohai Chen Liyun Wang
author_sort	Lele Xu
title	A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food
title_short	A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food
title_full	A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food
title_fullStr	A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food
title_full_unstemmed	A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food
title_sort	comprehensive evaluation of the potential of semiterrestrial isopods, ligia exotica, as a new animal food
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/db52c52c338a4c47b356af23dacd4fd5
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A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food

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