scholarly journals Effect of partial substitution of fishmeal with insect meal (Hermetia illucens) on gut neuromuscular function in Gilthead sea bream (Sparus aurata)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Annalisa Bosi ◽  
Davide Banfi ◽  
Federico Moroni ◽  
Chiara Ceccotti ◽  
Maria Cecilia Giron ◽  
...  
Keyword(s):  
Sparus Aurata ◽  
Growth Parameters ◽  
Gastrointestinal Transit ◽  
Neuromuscular Function ◽  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Partial Substitution ◽  
Fish Feed ◽  
Hermetia Illucens ◽  
Distal Intestine

AbstractAlternative nutrient sources to fishmeal for fish feed, such as insect meals, represent a promising sustainable supply. However, the consequences for fish digestive function have not been exhaustively investigated. In the present study we evaluated the effect of partial fishmeal substitution with 10% Hermetia illucens (Hi10) larvae meal on the neuromuscular function of proximal and distal intestine in gilthead sea bream. In animals fed with insect meal, weight and growth parameters were similar to controls fed with conventional fishmeal. In addition, no anomalies in intestinal gross morphology and no overt signs of inflammation were observed. The gastrointestinal transit was significantly reduced in Hi10 fed animals. In the proximal and distal intestine longitudinal muscle, Hi10 feeding downregulated the excitatory cholinergic and serotoninergic transmission. Sodium nitroprusside-induced inhibitory relaxations increased in the proximal intestine and decreased in the distal intestine after Hi10 meal. Changes in the excitatory and inhibitory components of peristalsis were associated with adaptive changes in the chemical coding of both proximal and distal intestine myenteric plexus. However, these neuromuscular function alterations were not associated with considerable variations in morphometric growth parameters, suggesting that 10% Hi meal may represent a tolerable alternative protein source for gilthead sea bream diets.

scholarly journals Growing Trial of Gilthead Sea Bream (Sparus aurata) Juveniles Fed on Chironomid Meal as a Partial Substitution for Fish Meal

Animals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 144 ◽  
Author(s):  
Alessandra Roncarati ◽  
Roberto Cappuccinelli ◽  
Marina Meligrana ◽  
Roberto Anedda ◽  
Sergio Uzzau ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Fish Meal ◽  
Sparus Aurata ◽  
Survival Rates ◽  
Protein Source ◽  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Partial Substitution ◽  
Feed Conversion ◽  
Feed Conversion Rate

Insect meal derived from chironomid larvae and collected from aquatic environments was included in the feed of gilthead sea bream juveniles (75 ± 1.1 g) in a growth trial of 90 days. Three feeds, which were namely one control (L1) and two experimental diets (L2, L3), were analyzed and formulated as isonitrogenous (45%) and isolipidic (13%). In L1, the protein source was mainly soybean meal (32%), followed by fish meal (20%), wheat meal (20%), gluten corn (17%), and hemoglobin (11%). In L2, the proportion of soybean meal was increased (33.5%), followed by gluten corn (21%), wheat meal (14%), and hemoglobin (11%), whereas the fish meal source was reduced (15%) due to the inclusion of chironomids (5%). In L3, the proportion of fish meal was further reduced (8%) and that of chironomid meal was increased to 10% of the protein source. The L2 and L3 groups showed similar growth performances with respect to the L1 group. The feed conversion rate was favorable in all the groups, ranging from 1.18 (L1) to 1.22 (L3). Survival rates varied from 93.62% (L3) to 94.31% (L1). Feed palatability showed similar results for all diets. Although the inclusion of chironomid meal was used in small quantities, our results suggest a significant advantage in replacing 50% of the fish meal with the chironomid meal for growing gilthead sea bream fishes.

scholarly journals Evaluation of the in Vitro Anti-Atherogenic Properties of Lipid Fractions of Olive Pomace, Olive Pomace Enriched Fish Feed and Gilthead Sea Bream (Sparus aurata) Fed with Olive Pomace Enriched Fish Feed

Marine Drugs ◽  
2013 ◽  
Vol 11 (10) ◽  
pp. 3676-3688 ◽  
Author(s):  
Constantina Nasopoulou ◽  
Vassiliki Gogaki ◽  
Giorgos Stamatakis ◽  
Leonidas Papaharisis ◽  
Constantinos Demopoulos ◽  
...  
Keyword(s):  
Sparus Aurata ◽  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Fish Feed ◽  
Olive Pomace ◽  
Lipid Fractions

Stress effects of amyloodiniosis in gilthead sea bream Sparus aurata

2018 ◽  
Vol 127 (3) ◽  
pp. 201-211 ◽  
Author(s):  
M Moreira ◽  
M Herrera ◽  
P Pousão-Ferreira ◽  
JI Navas Triano ◽  
F Soares
Keyword(s):  
Sparus Aurata ◽  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Stress Effects

scholarly journals Experimental Horizontal Transmission of Enterospora nucleophila (Microsporea: Enterocytozoonidae) in Gilthead Sea Bream (Sparus aurata)

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 362
Author(s):  
Amparo Picard-Sánchez ◽  
M. Carla Piazzon ◽  
Itziar Estensoro ◽  
Raquel Del Pozo ◽  
Nahla Hossameldin Ahmed ◽  
...  
Keyword(s):  
Sparus Aurata ◽  
Horizontal Transmission ◽  
Infected Fish ◽  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Target Tissue ◽  
Farmed Fish ◽  
Infection Level ◽  
Available Information

Enterospora nucleophila is a microsporidian enteroparasite that infects mainly the intestine of gilthead sea bream (Sparus aurata), leading to an emaciative syndrome. Thus far, the only available information about this infection comes from natural outbreaks in farmed fish. The aim of the present study was to determine whether E. nucleophila could be transmitted horizontally using naturally infected fish as donors, and to establish an experimental in vivo procedure to study this host–parasite model without depending on natural infections. Naïve fish were exposed to the infection by cohabitation, effluent, or intubated either orally or anally with intestinal scrapings of donor fish in four different trials. We succeeded in detecting parasite in naïve fish in all the challenges, but the infection level and the disease signs were always milder than in donor fish. The parasite was found in peripheral blood of naïve fish at 4 weeks post-challenge (wpc) in oral and effluent routes, and up to 12 wpc in the anal transmission trial. Molecular diagnosis detected E. nucleophila in other organs besides intestine, such as gills, liver, stomach or heart, although the intensity was not as high as in the target tissue. The infection tended to disappear through time in all the challenge routes assayed, except in the anal infection route.

scholarly journals Age dependency of RGNNV/SJNNV viral encephalo-retinopathy in Gilthead Sea Bream (Sparus aurata)

Aquaculture ◽  
2021 ◽  
pp. 736605
Author(s):  
A. Toffan ◽  
L. Biasini ◽  
T. Pretto ◽  
M. Abbadi ◽  
A. Buratin ◽  
...  
Keyword(s):  
Sparus Aurata ◽  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Age Dependency

Growth hormone as an in vitro phagocyte-activating factor in the gilthead sea bream ( Sparus aurata )

1997 ◽  
Vol 287 (3) ◽  
pp. 535-540 ◽  
Author(s):  
Josep Alvar Calduch-Giner ◽  
Ariadna Sitjà-Bobadilla ◽  
Pilar Alvarez-Pellitero ◽  
Jaume Pérez-Sánchez
Keyword(s):  
Growth Hormone ◽  
Sparus Aurata ◽  
Gilthead Sea Bream ◽  
Sea Bream
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