Blood pressure and BMI in adolescents in Aracaju, Brazil     

Polderman J  Gurgel RQ  Barreto-Filho JA  Roelofs R  Ramos RE  de Munter JS  Wendte JF  Agyemang C 《Public health nutrition》2011,14(6):1064-1070

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Dual-purpose Guzerá cattle exhibit high dairy performance under heat stress     

Mário L. Santana Jr  Rodrigo J. Pereira  Annaiza B. Bignardi  Lenira El Faro  Maria F. Á. Pires  Ricardo G. Andrade  Bruno C. Perez  Frank A. T. Bruneli  Maria G. C. D. Peixoto 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2020,137(5):486-494

The present study evaluated the heat stress response pattern of dual-purpose Guzerá cattle for test-day (TD) milk yield records of first lactation and estimated genetic parameters and trends related to heat stress. A total of 31,435 TD records from 4,486 first lactations of Guzerá cows, collected between 1986 and 2012, were analysed. Two random regression models considered days in milk (DIM) and/or temperature × humidity-dependent (THI) covariate. Impacts of −0.037, −0.019 and −0.006 kg/day/THI for initial and intermediate stages of lactation were observed when considering the mean maximum daily temperature and humidity to calculate THI. Heritability estimates ranged from 0.16 to 0.35 throughout lactation and THI values, suggesting the possibility to expect gains from selection for such trait. The variable trajectory of breeding values for dual-purpose Guzerá sires in response to changes in THI values confirms that the genotype × environment interaction due to heat stress can have some effect on TD milk yield. Despite the high dairy performance of Guzerá cattle under heat stress, estimated genetic trends showed a progressive reduction in heat tolerance. Therefore, new strategies should be adopted to prevent negative impacts of heat stress over milk production in Guzerá animals in future.  相似文献   

Morphophysiology of forage peanut submitted to different intensities of defoliation on grazing with sheep     

Costa  Olmar Antônio Denardin  Ferreira  Otoniel Geter Lauz  Henrique  Douglas Sampaio  Vaz  Ricardo Zambarda  Fluck  Ana Carolina  Paris  Wagner  Kröning  Alexsandro Bahr  Griffith  Luis Alberto Alonzo  Matos  Oscar Ivan Tuz 《Tropical animal health and production》2020,52(2):547-554

Tropical Animal Health and Production - The aim was to monitor the growth, the dry mass accumulation curve, and the structural photosynthetic components of forage peanut pasture, in different...  相似文献   

Ruminal and histological characteristics and nitrogen balance in lamb fed diets containing cactus as the only roughage     

da Silva  Kleitiane Balduino  de Oliveira  Juliana Silva  Santos  Edson Mauro  Cartaxo  Felipe Queiroga  Guerra  Ricardo Romão  do Nascimento de Souza  Aelson Fernandes  Muniz  Ana Cecília Souza  de Lima Cruz  Gabriel Ferreira 《Tropical animal health and production》2020,52(2):637-645

Tropical Animal Health and Production - This study examined rumen fermentation, histological, blood, and urinary characteristics as well as ammoniacal nitrogen concentration, pH, nitrogen balance,...  相似文献   

Cell blocks in veterinary medicine: A comparison of two methods (cell tube and agar) in 52 effusions from dogs and cats     

Maverick Melega  Marta Santos  Mario Caniatti  Paola Valenti  Barbara Miniscalco  Majlind Sulce  Ricardo Marcos  Fulvio Riondato 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2020,49(4):632-639

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Analysis of the Mycosporine-Like Amino Acid (MAA) Pattern of the Salt Marsh Red Alga Bostrychia scorpioides     

Maria Orfanoudaki  Anja Hartmann  Julia Mayr  Flix L. Figueroa  Julia Vega  John West  Ricardo Bermejo  Christine Maggs  Markus Ganzera 《Marine drugs》2021,19(6)

This study presents the validation of a high-performance liquid chromatography diode array detector (HPLC-DAD) method for the determination of different mycosporine-like amino acids (MAAs) in the red alga Bostrychia scorpioides. The investigated MAAs, named bostrychines, have only been found in this specific species so far. The developed HPLC-DAD method was successfully applied for the quantification of the major MAAs in Bostrychia scorpioides extracts, collected from four different countries in Europe showing only minor differences between the investigated samples. In the past, several Bostrychia spp. have been reported to include cryptic species, and in some cases such as B. calliptera, B. simpliciuscula, and B. moritziana, the polyphyly was supported by differences in their MAA composition. The uniformity in the MAA composition of the investigated B. scorpioides samples is in agreement with the reported monophyly of this Bostrychia sp.  相似文献   

Co-inoculation of soybeans and common beans with rhizobia and azospirilla: strategies to improve sustainability     

Mariangela Hungria  Marco Antonio Nogueira  Ricardo Silva Araujo 《Biology and Fertility of Soils》2013,49(7):791-801

Plant–microorganism associations have long been studied, but their exploitation in agriculture partially or fully replacing chemical fertilizers is still modest. In this study, we evaluated the combined action of rhizobial and plant growth-promoting rhizobacteria inoculants on the yields of soybean and common bean. Seed inoculation with rhizobia (1.2?×?10⁶ cells seed^?1) was compared to co-inoculation with Azospirillum brasilense in-furrow (different doses) or on seeds (1.2?×?10⁵ cells seed^?1) in nine field experiments. The best in-furrow inoculant dose was 2.5?×?10⁵ cells of A. brasilense seed^?1 for both crops. Inoculation with Bradyrhizobium japonicum increased soybean yield by an average 222 kg?ha^?1 (8.4 %), and co-inoculation with A. brasilense in-furrow by an average 427 kg?ha^?1 (16.1 %); inoculation always improved nodulation. Seed co-inoculation with both microorganisms resulted in a mean yield increase of 420 kg?ha^?1 (14.1 %) in soybean relative to the non-inoculated control. For common bean, seed inoculation with Rhizobium tropici increased yield by 98 kg?ha^?1 (8.3 %), while co-inoculation with A. brasilense in-furrow resulted in the impressive increase of 285 kg?ha^?1 (19.6 %). The cheaper, more sustainable inoculated treatment produced yields equivalent to the more expensive non-inoculated + N-fertilizer treatment. The results confirm the feasibility of using rhizobia and azospirilla as inoculants in a broad range of agricultural systems, replacing expensive and environmentally unfriendly N-fertilizers.  相似文献   

DRY MATTER PRODUCTION AND LEAF ELEMENTAL CONCENTRATIONS OF RAMBUTAN GROWN ON AN ACID ULTISOL     

Ricardo Goenaga 《Journal of plant nutrition》2013,36(5):753-761

Little is known about the adaptability of rambutan (Nephelium lappaceum) to highly acidic soils rich in aluminum (Al). A 2-yr field study was conducted to determine the effects of various levels of soil Al on dry matter production, plant growth, and nutrient concentration in the leaves of four cultivars of rambutan. Cultivars and the cultivar x year interaction were not statistically significant for most variables measured in the study. Total, leaf, petiole, stem and root dry weights significantly increased at soil Al concentrations ranging from 0.67 cmol kg^?1 to 11.0 cmol kg^?1. At this range of soil Al, the concentrations of Al and manganese (Mn) in leaf tissue declined sharply. The results of this study demonstrate that rambutan is highly tolerant to acid soils and that tolerance may involve an Al- and Mn- exclusion mechanism.  相似文献   

Identification and pathogenicity of Neophysopella species associated with Asian grapevine leaf rust in Brazil     

Ricardo F. Santos  Isabela V. Primiano  Lilian Amorim 《Plant pathology》2021,70(1):74-86

Asian grapevine leaf rust (AGLR) causes severe crop losses in Brazilian viticulture, mainly in latitudes <25°S. The purpose of this study was to identify the pathogen(s) involved with AGLR in Brazil, based on phylogenetic and morphological analysis and pathogenicity tests. In total, 56 monouredinial isolates from six Brazilian states were identified using the internal transcribed spacer 2 and the large subunit rRNA gene D1/D2 regions. All 50 isolates from the south-central region were classified as Neophysopella tropicalis, and the other six isolates from the north-east region as Neophysopella meliosmae-myrianthae. This result provides evidence that two pathogen introductions from different sources may have occurred in the country. For both species, paraphyses were cylindrical, incurved, aseptate, and hyaline, while urediniospores were short-pedicellate, obovoid or obovoid-ellipsoid, with the wall colourless or pale yellowish, evenly echinulate. Representative isolates from both species caused typical AGLR symptoms on Vitis vinifera 'Merlot' and V. labrusca 'Niagara Rosada'. Overall, regardless of the Neophysopella species, isolates caused similar leaf disease severities. Higher disease severity was observed in Niagara Rosada (average of 40.3% of diseased leaf area) compared to Merlot (20.5%). This study reports, for the first time, the characterization of Neophysopella species associated with AGLR in Brazil.  相似文献   

Tissue specific colonization of Phytophthora capsici in Capsicum spp.: molecular insights over plant-pathogen interaction     

Saltos  Luis Alberto  Corozo-Quiñones  Liliana  Pacheco-Coello  Ricardo  Santos-Ordóñez  Efrén  Monteros-Altamirano  Álvaro  Garcés-Fiallos  Felipe R. 《Phytoparasitica》2021,49(1):113-122

Phytoparasitica - Root and crown rot (RCR) caused by Phytophthora capsici is present in all crop production areas of pepper and chili worldwide. This pathogen was recently reported at the Pacific...  相似文献