Alfredo Ruben Palomino Ramos’s scientific contributions

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Publications (2)


Digestive Physiology, Nutrition and Feeding of Arapaima gigas: A Review
  • Article
  • Full-text available

December 2024

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44 Reads

Fishes

Alfredo Ruben Palomino Ramos

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The Arapaima gigas, a native fish species in the Amazon basin, presents particular biological and zootechnical characteristics, along with substantial economic value, that make it a promising candidate for its production within intensive aquaculture systems. To date, different studies have been conducted to (a) increase the understanding of its digestive physiology in relation to feeding habits, (b) determine its nutritional requirements at different developmental stages, (c) assess the potential use of alternative ingredients in diets, and (d) elucidate its feeding behavior patterns in captivity to improve feeding strategies. However, important gaps still remain in the available information related to the above-mentioned aspects that compromise the formulation of efficient and balanced aquafeeds used in the different production phases of this species. This article provides a comprehensive review of the current state of knowledge regarding digestive physiology, nutritional requirements and feeding strategies of A. gigas with the main objective of identifying areas that require further research for application in developing suitable and sustainable feeds for the species.

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Figure 1. PRISMA flowchart for literature searches and article inclusion.
Figure 2. Map of the approximate natural distribution of A. gigas in South America [36].
Production of A. gigas in Brazil and Peru 2003 -2022 (in tons) [44,45].
Estimated essential amino acid requirement (as % of dietary protein) of A. gigas based on the amino acid profile of muscle tissue following Rodrigues et al. [59] and Orosco-Napan [60].
Requirements of the main nutrients for A. gigas according to culture stage (in g/100 g diet) [48].

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Digestive Physiology, Nutrition and Feeding of Arapaima gigas; A Review

October 2024

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112 Reads

The Arapaima gigas, a native fish species in the Amazon basin, possesses intriguing biological and zootechnical characteristics, along with substantial economic value, rendering it a promising candidate for development within intensive aquaculture systems. Numerous studies have been conducted to deepen the understanding of its digestive physiology based on its feeding habits, determine its nutritional requirements corresponding to different developmental stages, assess alternative ingredients to enhance feeding strategies, and elucidate its feeding behavior patterns in captivity. However, there remain gaps in information and a deficiency in various aspects of nutritional physiology, particularly as it relates to the formulation of efficient and balanced aquafeeds across different production phases for this species. This article provides a comprehensive review of the current state of knowledge regarding digestive physiology, advancements in nutrition and feeding strategies developed over the past two decades. Furthermore, it aims to pinpoint areas that require further research to enhance the understanding of A. gigas and its application in sustainable aquaculture practices.