Suspected viral erythrocytic necrosis (VEN) in the intertidal fish Mauligobius maderensis from Madeira, Portugal

Suspected viral erythrocytic necrosis (VEN) was detected in two specimens of the intertidal fish Mauligobius maderensis (Teleostei: Gobiidae) from Madeira, Portugal. While one host was lightly infected, the other showed intraerythrocytic cytoplasmic inclusions within all mature erythrocytes examined. The inclusions were round to oval, 0-8-2-0 |im in diameter, and most were associated with dense eosinophilic granular areas of various sizes and shapes. Up to three of these granular regions accompanied each inclusion body, but they were sometimes widely separated from it. In a number of infected erythrocytes, a granular halo was observed surrounding the nucleus. The cytoplasm enclosed by the halo often had a different refringence from that outside. None of the 120 other fishes examined from Madeira, representing 43 species of intertidal, pelagic, and deep-sea origin, had detectable infections.info:eu-repo/semantics/publishedVersio

Observations on non-randomly distribution of spores of Henneguya spp. (Cnidaria, Myxosporea, Myxobolidae) within plasmodia

Species of the cnidarian genus Henneguya Thelohan, 1892 (Myxosporea: Myxobolidae) are histozoic parasites commonly found in freshwater and, more rarely, in marine fish. The development of these parasites in fish tissues includes the formation of plasmodia within which occurs the sporogony originating spores with two caudal processes, which are usually randomly distributed within the plasmodia. In this report the authors present some cases of non-random distribution of the spores of six species of Henneguya within their plasmodia. Two different patterns of non-random distribution were found based on a literature survey. These patterns and their origin are discussed. Apparently this non-random distribution of the spores is due to both internal and external factors.European Regional Development Fund (ERDF) through the COMPETE - Operational Competitiveness Programmenational funds through FCT - Foundation for Science and TechnologyCNPqGINOPUniv Porto, Fac Ciencias, Dept Biol, Rua Campo Alegre,Edificio FC4, P-4169007 Oporto, PortugalCIMAR, CIIMAR, Ctr Interdisciplinar Invest Marinha & Ambiental, Matosinhos, PortugalInst Super Engn Porto, Lab Engn Matemat LEMA, Oporto, Portugal|Univ Fed Sao Paulo, UNIFESP, Dept Ecol & Biol Evolut, Diadema, SP, BrazilUniv Estadual Campinas, Inst Biol, Dept Biol Anim, Campinas, SP, BrazilCtr Agr Res, Inst Vet Med Res, Budapest, HungaryHungarian Acad Sci MTA, Budapest, HungaryUniv Fed Sao Paulo, UNIFESP, Dept Ecol & Biol Evolut, Diadema, SP, BrazilEuropean Regional Development Fund (ERDF) through the COMPETE - Operational Competitiveness Programmenational funds through FCT - Foundation for Science and Technology: PEst-C/MAR/LA0015/2013CNPq: 305630/2013-0GINOP: 2.3.3-15-2016-00004Web of Scienc

Effects of diet supplementation with clove and rosemary essential oils and protected oils (eugenol, thymol and vanillin) on animal performance, carcass characteristics, digestibility, and ingestive behavior activities for Nellore heifers finished in feedlot

This study was carried out to evaluate the influence of essential oils and their blends on animal performance, feed intake, in situ digestibility, ingestive behavior activities, and carcass characteristics for heifers finished in feedlot on a high-grain diet (~65% corn, 25% corn silage, 10% soybean meal). Forty Nellore heifers (initial body weight 297.6 ± 31.2 kg) were used in the experiment and distributed randomly among individual pens. Dietary treatments based on essential oil additives included: CON – Without essential oil; ROS – Rosemary essential oil; BLE – Protected blend of eugenol, thymol, and vanillin; BCL – Protected blend + clove essential oil; and BRC – Protected blend + rosemary essential oil + clove essential oil. There were no diet effects on initial and final body weights. However, average daily gains, dry matter intakes (kg/d), and dry matter intakes (%BW) were greater (P < 0.05) in heifers fed with BLE, BCL, and BRC diets than in heifers fed with ROS diets. Feed efficiency (gain to feed) was greater (P < 0.0001) in heifers fed the BCL and BRC diets when compared to heifers fed the ROS diet. There were no diet effects on carcass characteristics. In situ digestibility of dry matter and neutral detergent fiber were greater (P < 0.0001) in heifers fed the three blended diets when compared to heifers fed the ROS diet. The addition of essential oils to the diets of heifers did not alter the muscle, fat, or bone percentages in the carcass. For ingestive behavior activities, data on rumination and idleness tended to be altered by diet with increased rumination in heifers fed BRC diet. The addition of 4 g/animal/d of a blend of essential oils to the diets of Nellore heifers improved average daily gain, dry matter intake, feed efficiency, and ingestive behavior activities

The monoclinic phase of PZT ceramics: Raman and phenomenological theory studies

This work reports on the first Raman detection of the tetragonal to monoclinic phase transition in PZT ceramics near morphotropic phase boundary at low temperatures. The transition is characterized by changes in the frequency of lattice modes with the temperature. The results presented here confirm the previous one recently reported by Noheda et al. using high-resolution synchrotron X-ray powder diffraction technique and dielectric measurements. The stability of the new phase is discussed within the framework of phenomenological Landau-Devonshire Theory.Comment: 6 pages including 4 figures, Latex, submitted to Applied Physics Letter