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Alves J.C.C.,Rio de Janeiro State Federal University | Senna G.,Rio de Janeiro State Federal University | Scudese E.,Rio de Janeiro State Federal University | Miranda D.P.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Dantas E.H.M.,Rio de Janeiro State Federal University
Revista Andaluza de Medicina del Deporte | Year: 2016

Objective: The aim of the study was to determine values of the 1RM test in multi and single-joint exercises with and without visual deprivation. Method: Twelve trained men (23.00. ±. 4.80 years; 80.76. ±. 8.09. kg; 1.76. ±. 0.05. cm) performed four visits (two for each exercise) consisting in 1RM tests for multi-joint exercise (guided bar squat) and single-joint exercise (biceps curl), with or without visual deprivation. Results: The T test found no significant differences between the visual deprivation methods for multi-joint exercise both in absolute strength (δ% = - 6.13%; p = 0.422) as for relative strength (p = 0.397). The same occurred for the single-joint exercise for absolute strength (δ% = 1.43%; p = 0.220) and for relative strength (p = 0.230). Additionally, a small effect size was observed between 1RM tests in multi and single-joint exercises in both visual protocols. Conclusion: According to the study results, we can conclude that for multi and single-joint exercises protocol visual deprivation do not cause significant differences in the displacement of loads in 1RM test execution. © 2016 Consejería de Turismo y Deporte de la Junta de Andalucía.

Carraschi S.P.,São Paulo State University | Ikefuti C.V.,NEPEAM | Florencio T.,NEPEAM | da Cruz C.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Ranzani-Paiva M.J.T.,Institute Pesca Of Sao Paulo
Aquaculture | Year: 2014

The use of drugs in aquaculture is necessary to combat pathogens responsible for causing the high rate of mortality in fish farming, such as infection by ectoparasites. The aim of this research was to evaluate the efficacy: (A) of toltrazuril (TOL) treatment against Ichthyophthirius multifiliis, Trichodina heterodentata and Anacanthorus penilabiatus; (B) of thiamethoxam (TH), in treating fish infected by A. penilabiatus and (C) of enrofloxacin (ENR) and florfenicol (FFC) against Aeromonas sp. and Streptococcus sp. The drugs TOL and TH were administered in therapeutic baths while ENR and FFC were mixed with the fish food. The drug concentrations were adjusted according to the experimental conditions (laboratory, microcosm or mesocosm). The drug TOL presented a treatment efficacy rate of 100% against I. multifiliis in microcosm and T. heterodentata in mesocosm. Moreover, ENR presented an efficacy rate of 100% in treating fish infected by Aeromonas sp. and Streptococcus sp. in mesocosm. Finally, TH efficacy rate in controlling A. penilabiatus infection was 81.86% in mesocosm and FFC decreased the overall bacterial load in infected fish. Aeromonas sp. and Streptococcus sp. strains were found in the samples collected for microbiological analysis. In conclusion, TH presented a high efficacy in treating fish against A. penilabiatus infection while TOL was better in controlling T. heterodentata. The antibiotics used in mecoscosm condition presented potential to be used against bacterial infection in aquaculture. © 2013 Elsevier B.V.

Malerbo-Souza D.T.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Halak A.L.,State University of Maringá
Zootecnia Tropical | Year: 2011

This experiment was conducted at the Centro Universitario Moura Lacerda, Ribeirão Preto, SP, and aimed to study the frequency and behavior of insects visiting the flowers of cotton (Gossypium hirsutum L.) as well as the collection type (nectar and/or pollen) of insects on flowers. For this, the culture was observed in March 2010, the first ten minutes in each hour, from 6:00 am to 6:00 pm, with three replicates (different days). The insects found in cotton flowers were Africanized honey bees Apis mellifera (Hymenoptera: Apidae; 36.7%), followed by stingless bees Exomalopsis sp. (Hymenoptera: Anthophoridae; 16.3%), beetles Astylus variegatus (Coleoptera), other Hymenoptera (11%), Hemiptera (9%), beetle Diabrotica speciosa (Coleoptera; 7.1%), wasps (Hymenoptera: Vespidae; 4.1%) and flies (Diptera; 3.3%). The Africanized honey bees visited the flowers mainly to collect pollen. When collecting nectar from flowers, this bee played the stamens carrying pollen from flower to flower characterizing it as an effective pollinator in cotton crop. Africanized honey bees preferred to collect pollen (63.0%) than nectar (37.0%) in these flowers. For pollen, these bees visited the flowers from 6:00 am to 1:00 pm, with a peak frequency between 8:00 am and 11:00 am. To collect nectar, these insects visited the flowers from 10:00 am to 6:00 pm, with a peak frequency between 1:00 pm and 2:00 pm. The Africanized honey bee, stingless bees Exomalopsis sp and beetles A. variegatus were considered pollinators effectives on cotton culture.

Peixoto Henares M.N.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Peixoto Henares M.N.,São Paulo State University | Monteiro Camargo A.F.,São Paulo State University | Monteiro Camargo A.F.,Claro
Acta Limnologica Brasiliensia | Year: 2014

Aim: To evaluate the growth of Eichhornia crassipes (Mart.) Solms and Salvinia molesta Mitchell in tanks used for treating aquaculture effluent and compare the results with literature data in order to estimate the nutrients saturation point. Methods: An experiment with six rectangular fiberglass tanks were separated in two treatments, inflow and outflow (higher and lower nutrient concentration), and the two macrophytes above cited was carried out during 50 days. A floating quadrat with 0.25 m2 of E. crassipes and S. molesta at inflow and outflow of the tanks was collected weekly for fresh mass measurement. At the beginning and end of the experiment samples of macrophytes were oven-dried at 60 °C until constant weight to determine the dry mass. Dry mass of plants was estimated by a simple linear regression analysis between fresh mass and dry mass (DM). Results: The N and P concentrations were significantly higher (P<0.05) in the inflow (mean of 0.66 mg L–1 and 233.6 mg L–1, respectively) than in the outflow of the tanks (mean of 0.38 mg L–1 and 174.7 mg L–1, respectively). However, no significantly different plant growth was observed for either higher or lower concentration. For both higher and lower nutrient concentrations, the biomass gain for E. crassipes was, respectively, 428.5 and 402.7 g DM.m2. For S. molesta, biomass gain was 135.2 and 143.1 g DM.m2, in the higher and lower concentrations, respectively. Others studies reported high growth of E. crassipes and S. molesta in concentrations of nitrogen (0.14 – 0.18 mg L–1) and phosphorus (14.2 – 77.0 mg L–1) lower than this study. Conclusion: The comparison of E. crassipes and S. molesta growth in this study with others allow us to assume that the saturation point of E. crassipes should be 0.26 mg L–1 of nitrogen and 77 mg L–1 of phosphorus and for S. molesta below 0.19 mg L–1 of nitrogen and 15.1 mg L–1 of phosphorus. © Acta Limnologica Brasiliensia, 2014

Henares M.N.P.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Henares M.N.P.,São Paulo State University | Camargo A.F.M.,São Paulo State University | Camargo A.F.M.,Claro
Brazilian Journal of Biology | Year: 2014

The efficiency of a series of wetland colonized with Eichhornia crassipes and Salvinia molesta to treat the effluent of a giant river prawn (Macrobrachium rosenbergii) broodstock pond was evaluated in this study. The experimental design was completely randomized and was performed in 9 rectangular tanks (1.6 m3) with three treatments (constructed wetlands) and three replicates. The treatment types included: a wetland colonized with E. crassipes and S. molesta (EcSm) arranged sequentially, a wetland with E. crassipes only (Ec) and a wetland with S. molesta only (Sm). The means of suspended particulate material (SPM), total inorganic nitrogen (TIN), total Kjeldahl nitrogen (TKN), P-orthophosphate (PO4-P) and total phosphorus (TP) of the treated effluents were compared using ANOVA followed by Tukey’s test (P<0.05). The effluent treated in Ec and EcSm wetlands exhibited lower SPM concentrations. The Ec wetland reduced TIN, TKN, PO4-P and TP by 46.0, 43.7, 44.4 and 43.6%, respectively. In the EcSm wetland, the reduction of TIN (23.0%), TKN (33.7%) and PO4-P (26.7%) was similar to the Sm wetland (19.8% TIN, 30.9% TKN and 23.8% PO4-P). The Ec wetland was more efficient in treating pond effluent due likely to the higher root surface of E. crassipes, which forms an extensive area favorable to retention and adsorption of debris and absorption of nutrients. © 2014, Instituto Internacional de Ecologia. All rights reserved.

Henares M.N.P.,São Paulo State University | Henares M.N.P.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | de Lima Preto B.,São Paulo State University | de Lima Preto B.,Instituto Federal do Espirito Santo IFES | And 3 more authors.
Aquaculture Research | Year: 2015

The effects of artificial substrate and night-time aeration on the culture of Macrobrachium amazonicum were evaluated in 12 ponds stocked with 45 prawns m-2. A completely randomized design in 2 × 2 factorial scheme with three replicates was used. The combination of factors resulted in four treatments: with substrate and aeration (SA), with substrate and without aeration (SWA), without substrate and with aeration (WSA) and without substrate and aeration (WSWA). The presence of substrate in SA and SWA treatments reduced suspended particles (seston) by ~17.3% and P-orthophosphate by ~50%. The use of aerator (WSA and SA treatments) significantly (P < 0.05) increased the concentration of dissolved oxygen, suspended particles and nutrients in the pond water. These results indicate that the effect of substrate on turbidity and total suspended solids (TSS) values is opposite to the effect of the aerator. The aerators in semi-intensive grow-out M. amazonicum farming lower water quality because they increased the amount of detritus and nutrients in the pond water. On the other hand, the use of artificial substrate reduces turbidity values, chlorophyll a, TSS and P-orthophosphate concentrations. Therefore, the combination of substrate addition and night-time aeration is not interesting because they have opposite effects. © 2013 John Wiley & Sons Ltd.

Farinelli R.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Lemos L.B.,São Paulo State University
Pesquisa Agropecuaria Tropical | Year: 2012

Nitrogen is the nutrient most required by the maize crop, being often the most limiting one to grain yield. This research aimed to evaluate maize response to yield, agronomic traits, and efficiency of nitrogen (N) use, in relation to nitrogen topdressing, under conventional and no-tillage systems, in an area where soil management systems have been studied for twenty years (1985- 2005), in the Universidade Estadual Paulista, in Botucatu, São Paulo State, Brazil. The experimental design was randomized blocks, in a split-plot arrangement, with four replications. The plots consisted of conventional and no-tillage systems and the subplots comprised topdressing nitrogen doses (0 kg ha -1, 40 kg ha -1, 80 kg ha -1, 120 kg ha -1, and 160 kg ha -1). The nitrogen topdressing promoted significant increases in maize agronomic and nutritional traits, with maximum grain yield obtained with 151 kg ha -1 of N. For the 90 kg ha -1 and 145 kg ha -1 nitrogen topdressing doses, the agronomic and recovery efficiency values were similar, when considered the conventional and no-tillage systems, respectively. The grain yield and maize agronomic and nutritional traits were not affected by soil management system.

Mingotte F.L.C.,São Paulo State University | Guarnieri C.C.O.,São Paulo State University | Farinelli R.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Lemos L.B.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb
Bioscience Journal | Year: 2013

The objective of this work was to evaluate the agronomic performance and grain quality, especially the grain technological characteristics in the common bean genotypes, cultivated in winter-spring season. The experiment was carried out in Jaboticabal-SP, in a Rhodic Hapludox. The experimental design was a randomized block with 17 treatments (genotypes) with three replications. The plots had been composed for 17 carioca common bean group genotypes (Pérola, BRS Cometa, BRS Pontal, IPR Juriti, CNFC 10703, CNFC 10713, CNFC 10716, CNFC 10721, CNFC 10729, CNFC 10733, CNFC 10742, CNFC 10753, CNFC 10757, CNFC 10758, CNFC 10762, CNFC 10763 and CNFC 10813). BRS Pontal and CNFC 10716 showed simultaneously the higher number of per plant and grain yield. The technological characteristics more expressive was verified in CNFC 10703, CNFC 10713, CNFC 10758, CNFC 10813 and CNFC 10716 genotypes, principally about the protein content, cooking time and grain hydration capacity. The CNFC 10716 genotype detached as promissory, because their elevated agronomic performance and satisfactory technological characteristics.

Alves de Azevedo Barros J.P.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb | Peixoto Henares M.N.,Centro Universitario Da Fundacao Educacional Of Barretos Unifeb
Revista Ambiente e Agua | Year: 2015

Copper in the aquatic ecosystem may remain adsorbed or be incorporated into the biomass and undergo biomagnification causing unwanted effects to aquatic macrophyte communities. This study evaluated the biomass reduction of Salvinia molesta (Mitchell) exposed to copper sulphate pentahydrate (CuSO4.5H2O) under laboratory conditions. Approximately 20.5 g of fresh mass (FM) of S. molesta (0.74 g dry matter, DM) were placed in glass tanks with different concentrations (n = 3) of CuSO4.5H2O as follows: 0.0; 2.0; 4.0; 6.0; and 8.0 mg L-1 for 28 days. The dry mass was determined after each seven-day interval over 28 days and submitted to repeated ANOVA measures, followed by a Tukey test (P<0,05). The results show that macrophyte increased until the seventh day of exposure in all treatments. After this period, the biomass of S. molesta decreased; but there was no significant difference between treatments with copper, except for the 8.0 mg L-1 treatment. The copper treatments decreased the S. molesta biomass an average of 43.2% (0.50 g DM) after 28 days. At the end of the experiment, copper absorption in the treatments with 6.0 and 8.0 mg L-1 was on average 77.9% higher than in the treatments with 2 and 4 mg L-1. The treatments with 6.0 and 8.0 mg L-1 reached their maximum bioaccumulation capacity after 14 days. The results show that contamination of the aquatic environment at concentrations above 2 mg L-1 Cu2+ can reduce the S. molesta biomass by approximately 43%. © Rev. Ambient.

PubMed | Centro Universitario Da Fundacao Educacional Of Barretos Unifeb
Type: Journal Article | Journal: Journal of animal science | Year: 2011

The objective of this study was to investigate the presence of genotype environment interactions (GE) for long-yearling weight in Canchim cattle (5/8 Charolais + 3/8 zebu) in Brazil using reaction norms (RN). The hierarchical RN model included the fixed effect of age of the animal (linear coefficient) and random effects of contemporary groups and additive animal genetic intercept and slope of the RN and contemporary group effects as random effects. Contemporary groups as the most elemental representation of management conditions in beef cattle were chosen to represent the environmental covariate of the RN. The deviance information criteria demonstrated that a homoskedastic residual RN model provided a better data fit compared with a heteroskedastic counterpart and with a traditional animal model, which had the worst fit. The environmental gradient for long-yearling weight based on contemporary group effects ranged from -105 to 150 kg. The additive direct variance and heritability estimates increased with increasing environmental gradient from 74.33 22.32 to 1,922.59 258.99 kg(2) and from 0.08 0.02 to 0.68 0.03, respectively. The high genetic correlation (0.90 0.03) between the intercept and the slope of the RN shows that animals with the greatest breeding values best responded to environmental improvement, characterizing scale effect as the source of GE for long-yearling weight. The phenotypic plasticity demonstrated by the slope of the RN of the animal indicates the possibility to change genotype expression along the environmental gradient through selection. The results demonstrate the importance of accounting for GE in the genetic evaluation of this population.

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