4 documents found, page 1 of 1
Effect of the alveolate parasite Perkinsus olseni infection on sexual maturatio...
Fernández-Boo, Sergio; Duarte, Catarina; Guévélou, Eric; Sousa, Joana; Freitas, Rosa; Joaquim, Sandra; Costas, Benjamin; Magalhães, LuísaThe effect of Perkinsus olseni infection on the reproduction ability of clams has been underestimated so far. Although some studies found evidence of reduction of egg production and delay in gonad maturation after infection, the total effect of the infection is still unclear. In this study, Ruditapes decussatus clams from a naïve population were injected with two different doses of P. olseni parasites, a low do...
Trematode genetic patterns at host individual and population scales provide ins...
Correia, Simão; Fernández-Boo, Sergio; Magalhães, Luísa; de Montaudouin, Xavier; Daffe, Guillemine; Poulin, Robert; Vera, ManuelMultiple parasites can infect a single host, creating a dynamic environment where each parasite must compete over host resources. Such interactions can cause greater harm to the host than single infections and can also have negative consequences for the parasites themselves. In their first intermediate hosts, trematodes multiply asexually and can eventually reach up to 20% of the host's biomass. In most species...
Comparative analysis between synthetic vitamin E and natural antioxidant source...
Pereira, Ricardo; Costa, Mónica; Velasco, Cristina; Cunha, Luís M.; Lima, Rui C.; Baião, Luís F.; Batista, Sónia; Marques, Alexandra; Sá, TiagoSynthetic vitamin E is commonly used in aquafeeds to prevent oxidative stress in fish and delay feed and flesh oxidation during storage, but consumers’ preferences tend towards natural antioxidant sources. The potential of vegetable antioxidants-rich coproducts, dried tomato (TO), carrot (CA) and coriander (CO) was compared to that of synthetic vitamin E included in diets at either a regular (CTRL; 100 mg kg−1)...
Functional and molecular mmune response of rainbow trout (Oncorhynchus mykiss) ...
Fajardo, Carlos; Santos, Paulo; Passos, Ricardo; Vaz, Mariana; Azeredo, Rita; Machado, Marina; Fernández-Boo, Sergio; Baptista, Teresa; Costas, BenjaminCurrently, aquaculture production of rainbow trout (Oncorhynchus mykiss) is a multibillion dollar industry; nevertheless, the development of this sector has not been exempt from pitfalls related to the recurrent presence of pathogens of bacterial origin. This is the case of Yersinia ruckeri, the etiologic agent of the infectious pathology known as Enteric Red Mouth Disease (ERM), causing serious economic losses...