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325 results on '"Manchado, Manuel"'

15. Selection for growth is associated in gilthead sea bream (Sparus aurata) with diet flexibility, changes in growth patterns and higher intestine plasticity

Author

Perera, Erick, Simó-Mirabet, Paula, Shin, Hyun Suk, Rosell-Moll, Enrique, Naya-Catalá, Fernando, de las Heras, Verónica, Martos-Sitcha, Juan Antonio, Karalazos, Vasileios, Armero, Eva, Arizcun, Marta, Chaves, Elena, Berbel, Concepción, Manchado, Manuel, Afonso, Juan Manuel, Calduch-Giner, Josep, and Pérez-Sánchez, Jaume

Published
2019
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26. Assessment of Full-Fat Tenebrio molitor as Feed Ingredient for Solea senegalensis : Effects on Growth Performance and Lipid Profile.

Author

Hachero-Cruzado, Ismael, Betancor, Mónica B., Coronel-Dominguez, Antonio Jesús, Manchado, Manuel, and Alarcón-López, Francisco Javier

Subjects
FISH feeds, SOLEA senegalensis, TENEBRIO molitor, FISH meal, OLEIC acid, LIPIDS, DOCOSAHEXAENOIC acid, PLANT proteins
Abstract

Simple Summary: Yellow mealworm is considered as one of the most promising protein sources for replacing fish meal in aquafeeds, among other things because is rich in protein, a good source of micronutrients and exhibits low carbon footprint and land usage. The aim of this study was to evaluate the effects of substituting partial plant or marine-derived ingredients with full-fat yellow mealworm meal at two different levels on the growth performance and fatty acid profiles of Senegalese sole. For this purpose, the study tested a control diet and four experimental diets. Two of the experimental diets substituted marine-derived ingredients for insect meal at two levels (5 and 10%), while the other two substituted components of vegetable origin for insect meal (10 and 15%). The addition of insect meal resulted in an increase in growth rate in both cases, whether replacing fish or plant meals. This led to a decrease in muscle total lipid while maintaining the relative levels of n-3 PUFA and DHA, ultimately improving the lipid health indices n-3: n-6. Tenebrio molitor (TM) is considered as one of the most promising protein sources for replacing fish meal in aquafeeds, among other things because it is rich in protein, a good source of micronutrients and has a low carbon footprint and land use. However, the main drawback of TM is its fatty acid profile, in particular its low content of n-3 PUFA. This study evaluates the effects of partially replacing plant or marine-derived with full-fat TM meal at two different levels on growth performance and lipid profiles of Senegalese sole (Solea senegalensis). For this purpose, a control diet (CTRL) and four experimental isoproteic (53%) and isolipidic (16%) diets were formulated containing 5 and 10% TM meal replacing mostly fish meal (FM5 and FM10), or 10 and 15% TM meal replacing mostly plant meal (PP10 and PP15). Fish (215 g) were fed at 1% of their body weight for 98 days. The final body weight of fish fed the experimental diets containing TM meal was not different from that of fish fed the CTRL diet (289 g). However, the inclusion of TM meal resulted in a gradual improvement in growth rate and feed efficiency in both cases (replacement of fish or plant meals), and significant differences in specific growth rate (SGR) were observed between fish fed the CTRL diet (SGR = 0.30% day−1) and those fed diets with the highest TM meal content (PP15; SGR = 0.35% day−1). The experimental groups did not show any differences in the protein content of the muscle (19.6% w/w). However, significant differences were observed in the total lipid content of the muscle, with the FM10, PP10, and PP15 groups having the lowest muscle lipid contents (2.2% ww). These fish also showed the lowest neutral lipid content in muscle (6.6% dw), but no differences were observed in the total phospholipid content (2.6% dw). Regarding the fatty acid profile, fish fed FM10, PP10 and PP15 had lower levels of linoleic acid (18:2n-6) and higher levels of oleic acid (18:1n-9) in liver and muscle compared to fish fed CTRL. However, no differences were found between fish fed CTRL and TM-based diets for docosahexaenoic acid (22:6n-3) and total n-3 PUFA in liver and muscle. In conclusion, our study demonstrated that full-fat TM inclusion up to 15% in S. senegalensis diets had no negative effects or even some positive effects on fish survival, growth performance, nutrient utilization and flesh quality. [ABSTRACT FROM AUTHOR]

Published
2024
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35. Analysis of the histone cluster in Senegalese sole (Solea senegalensis): evidence for a divergent evolution of two canonical histone clusters

Author

Merlo, Manuel Alejandro, Iziga, Roger, Portela-Bens, Silvia, Cross, Ismael, Kosyakova, Nadezda, Liehr, Thomas, Manchado, Manuel, and Rebordinos, Laureana

Subjects
Gene expression -- Observations, Histones -- Physiological aspects, Chordata -- Genetic aspects, Biological sciences
Abstract

Abstract: The Senegalese sole (Solea senegalensis) is commercially very important and a priority species for aquaculture product diversification. The main histone cluster was identified within two BAC clones. However, two [...]

Published
2017
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38. Chapter 5 - Aquaculture and conservation

Author

Guerra-García, José Manuel, Martínez-Pita, Inés, Šegvić-Bubić, Tanja, Manchado, Manuel, Arechavala-Lopez, Pablo, Calado, Ricardo, Marchio, Elizabeth, Gentry, Rebecca, Tlusty, Michael F., Rhyne, Andrew, Moreno, Patricia, Béjar, Julia, Alonso, María del Carmen, García-Rosado, Esther, and Jiménez-Prada, Pablo

Published
2023
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50. Simulating the Effects of Temperature and Food Availability on True Soles (Solea spp.) Early-Life History Traits: A Tool for Understanding Fish Recruitment in Future Climate Change Scenarios.

Author

Sardi, Adriana E., Moreira, José M., Omingo, Lisa, Cousin, Xavier, Bégout, Marie-Laure, Manchado, Manuel, and Marn, Nina

Subjects
SOLEA solea, TEMPERATURE effect, FISH larvae, FISHERIES, LIFE history theory, FISH as food, CLIMATE change
Abstract

Research on recruitment variability has gained momentum in the last years, undoubtedly due to the many unknowns related to climate change impacts. Knowledge about recruitment—the process of small, young fish transitioning to an older, larger life stage—timing and success is especially important for commercial fish species, as it allows predicting the availability of fish and adapting fishing practices for its sustainable exploitation. Predicting tools for determining the combined effect of temperature rise and food quality and quantity reduction (two expected outcomes of climate change) on early-life history traits of fish larvae are valuable for anticipating and adjusting fishing pressure and policy. Here we use a previously published and validated dynamic energy budget (DEB) model for the common sole (Solea solea) and adapt and use the same DEB model for the Senegalese sole (S. senegalensis) to predict the effects of temperature and food availability on Solea spp. early life-history traits. We create seven simulation scenarios, recreating RCP 4.5 and 8.5 Intergovernmental Panel on Climate Change (IPCC) scenarios and including a reduction in food availability. Our results show that temperature and food availability both affect the age at metamorphosis, which is advanced in all scenarios that include a temperature rise and delayed when food is limited. Age at puberty was also affected by the temperature increase but portrayed a more complex response that is dependent on the spawning (batch) period. We discuss the implications of our results in a climate change context. [ABSTRACT FROM AUTHOR]

Published
2023
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