Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus)
Crustaceans are an important source of aquatic food protein with a growing global demand leading to one of the fastest growing aquaculture sectors. Aquaculture of crustaceans is highly dependent on meeting their nutritional requirements and producing high quality stocks. However, knowledge on the nu...
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ftunivalgarve:oai:sapientia.ualg.pt:10400.1/15278 2023-05-15T16:08:47+02:00 Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus) Silva, Andreia Sofia Sardinha Conceição, Luís Eugénio da Castanheira Pinto, Wilson Gabriel Poseiro Coutinho 2020-11-24 http://hdl.handle.net/10400.1/15278 eng eng http://hdl.handle.net/10400.1/15278 202676080 openAccess http://creativecommons.org/licenses/by/4.0/ CC-BY Camarão-de-patas-brancas Penaeus vannamei Lavagante europeu Homarus gammarus Microdietas Requisitos de proteína Domínio/Área Científica::Ciências Naturais::Outras Ciências Naturais masterThesis 2020 ftunivalgarve 2022-05-30T08:49:33Z Crustaceans are an important source of aquatic food protein with a growing global demand leading to one of the fastest growing aquaculture sectors. Aquaculture of crustaceans is highly dependent on meeting their nutritional requirements and producing high quality stocks. However, knowledge on the nutrition, feeding ecology, body composition and nutrient requirements in crustacean larval culture is still limited. This thesis aimed at creating nutritional bases for the development of diets for two crustaceans species, whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus), at their early development stages. A first feeding trial was conducted to study the dietary protein requirements of whiteleg shrimp postlarvae. For this trial, six experimental diets were formulated to include 34, 44, 49, 54, 58 and 63% protein levels, designated as treatments P34, P44, P49, P54, P58 and P63, respectively. In this trial, 3.18 mg initial mean body weight postlarvae were reared in triplicate groups for 21 days, being fed one of the experimental diets. Growth performance and survival of shrimp from different treatments were affected by the dietary protein levels, with shrimp fed diet P34 registering significantly lower results than the remaining treatments. Final weight, weight gain, RGR and survival of shrimp only increased until diet P44 and FCR decreased. Broken-line analysis of weight gain indicated that the optimal dietary level of crude protein is 47.1% for whiteleg shrimp postlarvae. This requirement level of protein is slightly higher than previous research on posterior stages of development. This can be due to higher growth rates in earlier stages of development. A second feeding trial was conducted to study the growth performance of European lobster juveniles fed on three different experimental diets. These diets were rich in protein, protein and calcium or in carbohydrates and calcium, designated as PROT, PROTCA and STASH, respectively. For this trial, 23 lobster juveniles were reared for 90 days fed ... Master Thesis European lobster Homarus gammarus Universidade do Algarve: Sapienta |
institution |
Open Polar |
collection |
Universidade do Algarve: Sapienta |
op_collection_id |
ftunivalgarve |
language |
English |
topic |
Camarão-de-patas-brancas Penaeus vannamei Lavagante europeu Homarus gammarus Microdietas Requisitos de proteína Domínio/Área Científica::Ciências Naturais::Outras Ciências Naturais |
spellingShingle |
Camarão-de-patas-brancas Penaeus vannamei Lavagante europeu Homarus gammarus Microdietas Requisitos de proteína Domínio/Área Científica::Ciências Naturais::Outras Ciências Naturais Silva, Andreia Sofia Sardinha Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus) |
topic_facet |
Camarão-de-patas-brancas Penaeus vannamei Lavagante europeu Homarus gammarus Microdietas Requisitos de proteína Domínio/Área Científica::Ciências Naturais::Outras Ciências Naturais |
description |
Crustaceans are an important source of aquatic food protein with a growing global demand leading to one of the fastest growing aquaculture sectors. Aquaculture of crustaceans is highly dependent on meeting their nutritional requirements and producing high quality stocks. However, knowledge on the nutrition, feeding ecology, body composition and nutrient requirements in crustacean larval culture is still limited. This thesis aimed at creating nutritional bases for the development of diets for two crustaceans species, whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus), at their early development stages. A first feeding trial was conducted to study the dietary protein requirements of whiteleg shrimp postlarvae. For this trial, six experimental diets were formulated to include 34, 44, 49, 54, 58 and 63% protein levels, designated as treatments P34, P44, P49, P54, P58 and P63, respectively. In this trial, 3.18 mg initial mean body weight postlarvae were reared in triplicate groups for 21 days, being fed one of the experimental diets. Growth performance and survival of shrimp from different treatments were affected by the dietary protein levels, with shrimp fed diet P34 registering significantly lower results than the remaining treatments. Final weight, weight gain, RGR and survival of shrimp only increased until diet P44 and FCR decreased. Broken-line analysis of weight gain indicated that the optimal dietary level of crude protein is 47.1% for whiteleg shrimp postlarvae. This requirement level of protein is slightly higher than previous research on posterior stages of development. This can be due to higher growth rates in earlier stages of development. A second feeding trial was conducted to study the growth performance of European lobster juveniles fed on three different experimental diets. These diets were rich in protein, protein and calcium or in carbohydrates and calcium, designated as PROT, PROTCA and STASH, respectively. For this trial, 23 lobster juveniles were reared for 90 days fed ... |
author2 |
Conceição, Luís Eugénio da Castanheira Pinto, Wilson Gabriel Poseiro Coutinho |
format |
Master Thesis |
author |
Silva, Andreia Sofia Sardinha |
author_facet |
Silva, Andreia Sofia Sardinha |
author_sort |
Silva, Andreia Sofia Sardinha |
title |
Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus) |
title_short |
Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus) |
title_full |
Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus) |
title_fullStr |
Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus) |
title_full_unstemmed |
Nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (Penaeus vannamei) and European lobster (Homarus gammarus) |
title_sort |
nutritional bases of microdiet development for the early stages of two crustacean species: whiteleg shrimp (penaeus vannamei) and european lobster (homarus gammarus) |
publishDate |
2020 |
url |
http://hdl.handle.net/10400.1/15278 |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_relation |
http://hdl.handle.net/10400.1/15278 202676080 |
op_rights |
openAccess http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
_version_ |
1766404794171260928 |