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ABSTRACT In this study, we evaluated how guanidinoacetic acid (GAA) addition in diets with various metabolizable energy (ME) contents affects the performance of broiler chickens. We also estimated the equivalence of GAA in ME. We distributed 1,280 one-day-old broilers in a completely randomized design with eight treatments, eight replicates, and twenty birds per experimental unit. Treatments were based on ME levels (2,775-2,875-2,975 kcal/kg; 2,850-2,950-3,050 kcal/kg; 2,925-3,025-3,125 kcal/kg; or 3,000-3,100-3,200 kcal/kg, from 1 to 7, 8 to 21, and 22 to 42 days of age) and the inclusion of GAA (0 or 600 mg/kg). Supplementation of GAA increased weight gain in broilers at an energy level of 2,908 kcal/kg and improved feed conversion ratio (FCR) at energy levels of 2,908 and 2,983 kcal/kg. There was a linear reduction in feed intake and an improvement in FCR of broilers with increasing levels of energy in diets, with and without GAA addition. Solving the equivalence equation, by applying each of the weighted average energy levels studied. indicates the GAA equivalence of 133, 103, 74, and 44 kcal/kg of diet. In conclusion, GAA supplementation improves broilers’ efficiency of energy use; the average ME equivalence of 600 mg/kg of GAA is 88.5 kcal/kg. study (GAA (ME chickens 1280 280 1,28 onedayold one day old treatments replicates unit 2,7752,8752,975 277528752975 2,775 2,875 2,975 2 775 875 975 (2,775-2,875-2,97 kcalkg kcal kg 2,8502,9503,050 285029503050 2,850 2,950 3,050 850 950 3 050 2,850-2,950-3,05 2,9253,0253,125 292530253125 2,925 3,025 3,125 925 025 125 2,925-3,025-3,12 3,0003,1003,200 300031003200 3,000 3,100 3,200 000 100 200 3,000-3,100-3,20 7 21 4 age 0 ( 60 mg/kg. mgkg . mg mg/kg) 2908 908 2,90 (FCR 2983 983 2,98 equation studied 133 103 74 diet conclusion use 885 88 5 88. 128 28 1,2 7752 8752 2,7752,8752,97 27752875297 2775 2,77 2875 2,87 2975 2,97 77 87 97 (2,775-2,875-2,9 8502 9503 2,8502,9503,05 28502950305 2850 2,85 2950 2,95 3050 3,05 85 95 05 2,850-2,950-3,0 9253 0253 2,9253,0253,12 29253025312 2925 2,92 3025 3,02 3125 3,12 92 02 12 2,925-3,025-3,1 0003 1003 3,0003,1003,20 30003100320 3000 3,00 3100 3,10 3200 3,20 00 10 20 3,000-3,100-3,2 6 290 90 2,9 298 98 13 1, 2,7752,8752,9 2775287529 277 2,7 287 2,8 297 9 (2,775-2,875-2, 2,8502,9503,0 2850295030 285 295 305 3,0 2,850-2,950-3, 2,9253,0253,1 2925302531 292 302 312 3,1 2,925-3,025-3, 3,0003,1003,2 3000310032 300 310 320 3,2 3,000-3,100-3, 29 2, 2,7752,8752, 277528752 27 (2,775-2,875-2 2,8502,9503, 285029503 30 3, 2,850-2,950-3 2,9253,0253, 292530253 31 2,925-3,025-3 3,0003,1003, 300031003 32 3,000-3,100-3 2,7752,8752 27752875 (2,775-2,875- 2,8502,9503 28502950 2,850-2,950- 2,9253,0253 29253025 2,925-3,025- 3,0003,1003 30003100 3,000-3,100- 2,7752,875 2775287 (2,775-2,875 2,8502,950 2850295 2,850-2,950 2,9253,025 2925302 2,925-3,025 3,0003,100 3000310 3,000-3,100 2,7752,87 277528 (2,775-2,87 2,8502,95 285029 2,850-2,95 2,9253,02 292530 2,925-3,02 3,0003,10 300031 3,000-3,10 2,7752,8 27752 (2,775-2,8 2,8502,9 28502 2,850-2,9 2,9253,0 29253 2,925-3,0 3,0003,1 30003 3,000-3,1 2,7752, (2,775-2, 2,8502, 2,850-2, 2,9253, 2,925-3, 3,0003, 3,000-3, 2,7752 (2,775-2 2,8502 2,850-2 2,9253 2,925-3 3,0003 3,000-3 (2,775- 2,850- 2,925- 3,000- (2,775 (2,77 (2,7 (2, (2

https://doi.org/10.37496/rbz5220220071

Association of rs142548867 (EEFSEC) and periodontitis Grade C in a young Brazilian population rs rs14254886 EEFSEC (EEFSEC rs1425488 rs142548 rs14254 rs1425 rs142 rs14 rs1
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STOLF, Camila Schmidt

; TAIETE, Tiago

; NASCIMENTO, Paloma A. do

; PAZ, Hélvis E. S.

; SALLUM, Enílson Antônio

; RUIZ, Karina Gonzalez Silvério

; CASATI, Márcio Zaffalon

; CASARIN, Renato Corrêa Viana

Journal of Applied Oral Science

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2023, Volume 31 elocation e20230058

Resumo: En | Texto: En | PDF: En

Abstract Periodontitis Stage III-IV, Grade C (PerioC) is a severe form of Periodontitis. The individual genetic background has been shown to be an important etiopathogenic factor for the development of this disease in young, systemically healthy, and non-smokers patients. Recently, after exome sequencing of families with a history of the disease, PerioC was associated with three single nucleotide variations (SNVs) – rs142548867 (EEFSEC), rs574301770 (ZNF136), and rs72821893 (KRT25) – which were classified as deleterious or possibly harmful by prediction algorithms. Objective Seeking to validate these findings in a cohort evaluation, this study aims to characterize the allele and genotypic frequency of the SNVs rs142548867, rs574301770, and rs72821893 in the Brazilian population with PerioC and who were periodontally healthy (PH). Methodology Thus, epithelial oral cells from 200 PerioC and 196 PH patients were harvested at three distinct centers at the Brazilian Southern region, their DNA were extracted, and the SNVs rs142548867, rs574301770, rs72821893 were genotyped using 5′-nuclease allelic discrimination assay. Differences in allele and genotype frequencies were analyzed using Fisher’s Exact Test. Only the SNV rs142548867 (C > T) was associated with PerioC. Results The CT genotype was detected more frequently in patients with PerioC when compared with PH subjects (6% and 0.5% respectively), being significantly associated with PerioC (odds ratio 11.76, p=0.02). Conclusion rs142548867 represents a potential risk for the occurrence of this disease in the Brazilian population. IIIIV, IIIIV III IV, IV III-IV (PerioC young nonsmokers non smokers Recently (SNVs rs rs14254886 EEFSEC, EEFSEC , (EEFSEC) rs57430177 ZNF136, ZNF136 ZNF (ZNF136) rs7282189 KRT25 KRT (KRT25 algorithms evaluation PH. . (PH) Thus 20 19 region extracted 5′nuclease 5nuclease nuclease 5′ 5 assay Fishers Fisher s Test T 6% 6 (6 05 0 0.5 respectively, respectively respectively) odds 1176 11 76 11.76 p=0.02. p002 p p=0.02 02 p=0.02) rs1425488 (EEFSEC rs5743017 ZNF13 (ZNF136 rs728218 KRT2 (KRT2 (PH 2 1 ( 0. 117 7 11.7 p00 p=0.0 rs142548 rs574301 ZNF1 (ZNF13 rs72821 (KRT 11. p0 p=0. rs14254 rs57430 (ZNF1 rs7282 p=0 rs1425 rs5743 (ZNF rs728 p= rs142 rs574 rs72 rs14 rs57 rs7 rs1 rs5

https://doi.org/10.1590/1678-7757-2023-0058

Effects of microencapsulated carvacrol and cinnamaldehyde on feed digestibility, intestinal mucosa, and biochemical and antioxidant parameters in broilers digestibility mucosa
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Facchi, Caroline Schmidt

; Valentini, Fernanda Danieli Antoniazzi

; Pagnussatt, Heloísa

; Leite, Felipe

; Santo, Alicia Dal

; Aniecevski, Edemar

; Rossato, Gabriel

; Zaccaron, Gustavo

; Alba, Davi Fernando

; Milarch, Carine de Freitas

; Petrolli, Rafaella Rossetto

; Galli, Gabriela Miotto

; Silva, Aleksandro Schafer Da

; Tavernari, Fernando de Castro

; Petrolli, Tiago Goulart

Revista Brasileira de Zootecnia

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2023, Volume 52 elocation e20220079

Resumo: En | Texto: En | PDF: En

ABSTRACT The objective of this study was to evaluate the effects of different levels of microencapsulated carvacrol and cinnamaldehyde on metabolizable energy, feed digestibility, intestinal morphometric analysis, and antioxidant parameters in broilers. A completely randomized design with five treatments and eight replications of eight broilers (Cobb male) was used, and collections were carried out at 20 and 42 days of age. Carvacrol and cinnamaldehyde concentrations (mg/kg) were: 0 (control), 50, 100, 150, and 200. Carvacrol and cinnamaldehyde improved apparent metabolizable energy but did not change protein and ether extract digestibility. Supplementation increased intestinal villus height and villi:crypt ratio; in which 100 mg/kg produced the greatest villus height. Serum uric acid levels were lower in birds receiving supplementation. Improvement in the activity of glutathione peroxidase and glutathione-S-transferase was observed, while lower uric acid, thiobarbituric acid reactive substances, and reactive oxygen species levels were observed. Microencapsulated carvacrol and cinnamaldehyde improve apparent metabolizable energy and can be administered in broiler feed without risk to the bird’s health. These supplements may serve as alternative products to aid the performance of commercial poultry. digestibility analysis Cobb male used 2 4 age mgkg mg kg (mg/kg control, control , (control) 50 150 200 villicrypt villi crypt ratio 10 supplementation glutathioneStransferase S transferase observed substances bird s health poultry (control 5 15 1

https://doi.org/10.37496/rbz5220220079

Evaluation of liquid xylanase and phytase added after broiler feed pelletization
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Tobias, Géssica Paula

; Fabiani, Leonardo Miguel

; Pagnussatt, Heloísa

; Santo, Alicia Dal

; Lima, Marcos de

; Leite, Felipe

; Facchi, Caroline Schmidt

; Zaccaron, Gustavo

; Hoinoski, Gabriel

; Aniecevski, Edemar

; Alves, Maurício Vicente

; Galli, Gabriela Miotto

; Stefani, Lenita Moura

; Tavernari, Fernando de Castro

; Petrolli, Tiago Goulart

Revista Brasileira de Zootecnia

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2023, Volume 52 elocation e20220042

Resumo: En | Texto: En | PDF: En

ABSTRACT The objective of this study was to evaluate whether the addition of the enzymes phytase and xylanase, isolated or associated, in the liquid form after feed pelletization could improve energy utilization and digestibility of calcium and phosphorus by broiler chickens. Three experiments were performed using 120 birds each, divided into five treatments with eight replicates per group (n = 3), identified as: experiment 1 (xylanase: control, 1000 IU, 1500 IU, 2000 IU, 2500 IU), experiment 2 (phytase: control, 500 FTU, 1000 FTU, 1500 FTU, 2000 FTU), experiment 3 (xylanase + phytase: control, 3000 IU + 500 FTU, 3000 IU + 1000 FTU, 3000 IU + 1500 FTU, 3000 IU + 2000 FTU). Samples for digestibility tests were collected at 14 to 21 days of age. Therefore, the inclusion of liquid phytase and liquid phytase + xylanase after pelletization in broiler diets has become a relevant way to reduce the inclusion of inorganic P, which can reduce the cost of feed and P excretion in the environment. Furthermore, it is an interesting strategy to avoid enzyme denaturation in the pelleting process. associated chickens 12 each n 3, , 3) as control 100 150 200 250 IU) (phytase 50 FTU FTU) 300 FTU. . age Therefore environment Furthermore process 10 15 20 25 5 30

https://doi.org/10.37496/rbz5220220042

Behavior of strawberry production with growth models: a multivariate approach
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Diel, Maria Inês

; Lúcio, Alessandro Dal'Col

; Sari, Bruno Giacomini

; Olivoto, Tiago

; Pinheiro, Marcos Vinícius Marques

; Krysczum, Dionatan Ketzer

; Melo, Patrícia Jesus de

; Schmidt, Denise

Acta Scientiarum. Agronomy

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2021, Volume 43 elocation e47812

Resumo: En | Texto: En | PDF: En

ABSTRACT. Strawberry is an economically and socially important crop in several regions worldwide. Thus, studies that provide information on topics in strawberry growth are important and must be constantly updated. The aims of this study were to fit a logistic growth model to describe strawberry fruit production and to estimate the partial derivatives of the fitted model in order to estimate and interpret the critical points, in addition to using multivariate analyses. To do this, data on 16 treatments [combinations of two cultivars (Albion and Camarosa), two origins (national and imported), and four mixed organic substrates (70% crushed sugar cane residue + 30% organic compost, 70% crushed sugar cane residue + 30% commercial substrate, 70% burnt rice husk + 30% organic compost, and 70% burnt rice husk + 30% commercial substrate)] conducted in a randomized complete block design (RCBD) with four replicates were used. A logistic model was fitted to the accumulated fruit production stratified by treatment and replication. Partial derivatives related to the accumulated thermal sum were estimated in order to quantify the critical points of the model. Subsequently, a principal component analysis was performed. The results show that the use of growth models substantially increases the inferences that can be made about crop growth, and the multivariate analysis summarizes this information, simplifying its interpretation. Approaches such as those carried out in this study are still rarely used, but, compared to simpler models, they increase the amount of inferences that can be made and provide greater elucidation of the results.

https://doi.org/10.4025/actasciagron.v43i1.47812 719 downloads

Vegetable choline as a replacement for choline chloride in broiler feed
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Petrolli, Tiago Goulart

; Petrolli, Rafaella Rossetto

; Aniecevski, Edemar

; Facchi, Caroline Schmidt

; Leite, Felipe

; Santo, Alícia Dal

; Pagnussatt, Heloísa

; Calderano, Arele Arlindo

Acta Scientiarum. Animal Sciences

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2021, Volume 43 elocation e53265

Resumo: En | Texto: En | PDF: En

ABSTRACT. The objective of this study was to determine choline chloride replacement effects by a vegetable choline source, compost by Trachyspermum amni, Citrullus colocynthis, Achyranthus aspera, and Azadirachta indica in broiler feed. These compounds are fonts of phosphatidylcholine, a high-disponible molecule for intestinal absorption and choline supply. A total of 640 animals were randomly allocated in a completely randomized design, with four treatments and eight repetitions (n = 20), and zootechnical performance (body weight, weight gain, feed conversion ratio, and productive efficiency index), carcass yield, cuts yield, and organs (heart, liver, proventriculus, gizzard, and small intestine) relative weights were evaluated. Were evaluated two choline chloride levels (600 and 800 mg kg-1) and two vegetable choline levels (100 and 200 mg kg-1), added in a corn-soybean meal basal diet, during 42 days of raising. Results revealed better feed conversion ratio (p < 0.001) and production efficiency index (p < 0.001) in broilers fed vegetable choline, with no differences on body weight (p = 0.372) and weight gain (p = 0.427) among broilers. Carcass, cuts yield, and organ relative weights do not alter (p > 0.05) due to different group of supplementations. Findings in this trial concludes vegetable choline can adequately replace choline chloride in broiler feed, with improvement on performance and no compromising carcass, cuts or organ development.

https://doi.org/10.4025/actascianimsci.v43i1.53265

Repeatability coefficients and number of measurements for evaluating traits in strawberry
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Diel, Maria Inês

; Lúcio, Alessandro Dal’Col

; Olivoto, Tiago

; Pinheiro, Marcos Vinícius Marques

; Krysczun, Dionatan Ketzer

; Sari, Bruno Giacomini

; Schmidt, Denise

Acta Scientiarum. Agronomy

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2020, Volume 42 elocation e43357

Resumo: En | Texto: En | PDF: En

ABSTRACT. The objective of this study was to estimate the coefficient of repeatability and the number of measurements required for production and quality variables in a strawberry crop. An experiment was conducted with two strawberry cultivars from two origins grown in four substrate mixtures, totaling 16 treatments, evaluated in a randomized block design with four replications. Mass (MF) and number (NF) of fruits per plant were evaluated as measures of production, and total soluble solids (SST), titratable acidity (AT) and firmness (FIR) of fruits during the crop cycle were evaluated as measures of quality. Subsequently, the repeatability coefficient was estimated by the following methods: analysis of variance (ANOVA), principal component analysis using a correlation matrix (PCcor), principal component analysis using a variance-covariance matrix (PCcov) and structural analysis (SA). The number of measurements was adjusted for each studied variable based on determination coefficients of 0.80, 0.85, 0.90, and 0.95. The repeatability coefficients ranged from low to medium. The ANOVA method gave the lowest r values, while the PCcov method presented the highest values of r. When using the PCcov method, 3.6, 2.9, 6.2, 3.2, and 3.8 measurements were needed to reach 80% confidence for the variables MF, NF, SST, AT, and FIR, respectively, and this increased to 7.3, 14.0, 29.6, 15.4, and 18.1 for 95% confidence in the results for MF, NF, SST, AT, and FIR, respectively.

https://doi.org/10.4025/actasciagron.v42i1.43357 511 downloads

Production of biquinho pepper in different growing seasons characterized by the logistic model and its critical points
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Diel, Maria Inês

; Lúcio, Alessandro Dal’Col

; Valera, Oscar Valeriano Sanchéz

; Sari, Bruno Giacomini

; Olivoto, Tiago

; Pinheiro, Marcos Vinícius Marques

; Melo, Patrícia Jesus de

; Tartaglia, Francieli de Lima

; Schmidt, Denise

Ciência Rural

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2020, Volume 50 Nº 4 elocation e20190477

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO: O objetivo deste estudo foi caracterizar a produção de pimenta biquinho através da interpretação dos parâmetros do modelo Logístico e seus pontos críticos obtidos pelas derivadas parciais da função, bem como indicar qual a melhor cultivar e a melhor época de cultivo para locais de clima subtropical. Conduziu-se um experimento em esquema fatorial 2x3 sendo duas cultivares de pimenta biquinho (BRS Moema e Airetama biquinho), em três épocas de cultivo (E1: outubro de 2015, E2: 01 de novembro 2015 e E3: janeiro de 2016). Ajustou-se o modelo logístico para massa de frutos em função da soma térmica acumulada, e calculou-se os pontos críticos através das derivadas parciais do modelo com a finalidade de caracterizar o desempenho produtivo da cultura através da interpretação biológica destes parâmetros. Temperaturas próximas a 0 ºC durante o experimento foram letais às plantas, e por isso, para a época 3, ajustou-se um modelo de regressão linear. A interpretação dos parâmetros do modelo Logístico e seus pontos críticos permitiram que a produção das cultivares nas épocas 1 e 2 fossem caracterizadas, sendo que a cultivar mais produtiva é Airetama biquinho em todas as épocas de transplante. Essa cultivar também apresenta maior concentração de produção no período. Quanto a precocidade produtiva as duas cultivares não diferiram significativamente. Sobre a época 3, não foi possível interpretar da mesma forma, pois o ajuste do modelo linear não permite as mesmas interpretações realizadas para o modelo não linear, reafirmando a sua aplicabilidade em cultura olerícolas de múltiplas colheitas.

ABSTRACT: The objective of this study was to characterize the production of biquinho pepper through the interpretation of parameter estimates from the logistic model and its critical points obtained by the partial derivatives of the function, and to indicate the best cultivar and growing season for subtropical climate sites. For this, a 2x3 factorial experiment was conducted with two cultivars of biquinho pepper (BRS Moema and Airetama biquinho) in three growing seasons (E1: October 2015, E2: November 2015, E3: January 2016). The logistic non-linear model for fruit mass was specified as a function of the accumulated thermal sum, and the critical points were calculated through the partial derivatives of the model, in order to characterize the productive performance of the crop by the biological interpretation of the estimates of the three set parameters. In E3, temperatures close to 0 ºC during the experiment were lethal to the plants, and a linear regression model was used in this case. The production of the cultivars in E1 and E2 were well characterized by the estimated logistic models, and the most productive cultivar was Airetama biquinho in all evaluated seasons. This cultivar also presented higher concentration of production. The two cultivars did not differ significantly with regards to productive precocity. For E3, it was not possible to interpret the parameters in the same way as for E1 and E2, since the use of the linear model did not allow the same interpretations performed for the nonlinear model, reaffirming its applicability horticultural crops of multiple harvests.

https://doi.org/10.1590/0103-8478cr20190477 1047 downloads

10.

Long-term wheat-soybean successions affecting the cover and soil management factor in USLE, under subtropical climate
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Silva, Tiago Stumpf da

; Cassol, Elemar Antonino

; Levien, Renato

; Eltz, Flávio Luiz Foletto

; Schmidt, Marcelo Raul

Revista Brasileira de Ciência do Solo

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2020, Volume 44 elocation e0190180

Resumo: En | Texto: En | PDF: En

ABSTRACT Vegetation cover and soil management influence the magnitude of soil losses. In the Universal Soil Loss Equation (USLE), cover and management are represented by the C factor, as it is the easiest factor to manage to reduce loss of soil and water in agricultural areas. This study aimed to determine the C factor of a succession of wheat (Triticum aestivum L.) followed by soybean (Glycine max) under conventional tillage, reduced tillage, and no-tillage. For this, data of soil losses obtained in the field, under natural rainfall conditions, in a long-term experiment that lasted for 13 years were used. The cycle of both crops was divided into five stages with different time intervals between winter and summer, which resulted in ten periods per year constituting the succession. The C factor values varied widely among the treatments and the stages during the crop cycle, and they were influenced mainly by the rainfall distribution of the region, growth of the vegetation and soil disturbance level. By the end of the 13 years of experimentation, the C factor of the wheat-soybean succession under conventional tillage was 0.1576, 0.0407 under reduced tillage, and 0.0368 under no-tillage.

https://doi.org/10.36783/18069657rbcs20190180 476 downloads

11.

Relationship between morpho-agronomic traits in tomato hybrids
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DIEL, MARIA INÊS

; OLIVOTO, TIAGO

; KRYSCZUN, DIONATAN KETZER

; GIACOMINI SARI, BRUNO

; LÚCIO, ALESSANDRO DAL'COL

; ZAMBAN, DÉBORA TURCHETTO

; PINHEIRO, MARCOS VINÍCIUS MARQUES

; SCHMIDT, DENISE

Revista Colombiana de Ciencias Hortícolas

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Abr 2019, Volume 13 Nº 1 Páginas 64 - 70

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

RESUMEN El objetivo de este trabajo fue identificar y estimar las relaciones entre variables componentes de producción y rendi miento de frutos en tomate. El experimento se realizó con diseño de bloques al azar con un arreglo factorial 2x3x3, correspondiendo a dos híbridos de tomate (Netuno y San Vito), tres dosis de boro (H3BO3 - 0, 2, 4 g/sitio) y calcio (si aplicación, aplicación cada 7 días y aplicación cada 14 días), para un total de 18 tratamientos, cuatro repeticiones y 20 plantas por parcela. Se estimaron los coeficientes de correlación de Pearson entre las variables medidas, poste riormente, se seleccionaron aquellos con mayor significancia para la productividad mediante el método Stepwise y la verificación de la multicolinealidad por el número de condiciones y el factor de inflación de la varianza. Las correla ciones de las variables seleccionadas fueron descompuestas en efectos directos e indirectos sobre la productividad de los frutos mediante el análisis de coeficientes de trayectoria. Se encontró una fuerte correlación entre las variables, excluyendo las variables altura, diámetro y masa promedio de los frutos. Por lo tanto, existen relaciones de causa y efecto entre la variable independiente la masa total de frutos y la variable principal de productividad total de frutos, y las variables diámetro y número total de frutos no contribuyeron a aumentar la productividad de tomate.

ABSTRACT The objective of this study was to identify and estimate the relationships between production component variables and fruit yields in tomatoes. This experiment was conducted in a randomized block design with a 2x3x3 factorial arrangement, with two tomato hybrids (Netuno and San Vito), three doses of boron (H3BO3 - 0, 2, 4 g/pit) and three calcium floral applications (no application; application every 7 days; and application every 14 days), totaling 18 treatments with four replications and 20 plants per plot. Pearson correlation coef ficients were estimated between the measured variables and, after that, those with greater significance were selected for productivity with the Stepwise method and verification of multicollinearity using the number of condition and inflation factor of the variance. The correlations of the selected variables were decomposed into direct and indirect effects on fruit productivity with path analysis. There was a strong correlation be tween the variables, excluding the variables height, diameter and average mass of the fruits. Thus, there were cause and effect relationships between the independent variable total mass of the fruits and the principal variable total fruit yield. The variables diameter and total number of fruits did not contribute to an increased tomato production.

https://doi.org/10.17584/rcch.2019vl3il.7967 165 downloads

12.

Hypnea musciformis (Wulfen) J. V. Lamour. (Gigartinales, Rhodophyta) responses to gasoline short-term exposure: biochemical and cellular alterations
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Ramlov, Fernanda

; Carvalho, Tiago Jose Griebeler

; Costa, Giulia Burle

; Rodrigues, Eva Regina de Oliveira

; Bauer, Claudia Marlene

; Schmidt, Eder Carlos

; Kreusch, Marianne Gabi

; Moresco, Rodolfo

; Navarro, Bruno Bachiega

; Cabral, Debora Queiroz

; Bouzon, Zenilda Laurita

; Horta, Paulo Antunes

; Maraschin, Marcelo

Acta Botanica Brasilica

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Mar 2019, Volume 33 Nº 1 Páginas 116 - 127

Resumo: En | Texto: En | PDF: En

ABSTRACT Presence of toxic compounds in marine coastal waters has increased exponentially since Industrial Revolution. In this way, we aimed to evaluate biochemical and physiological changes occurring within Hypnea musciformis after short-term exposure to gasoline. Hypnea musciformis was cultivated without gasoline and then exposed to various concentrations of it (0.001 % - 1.0 %, v/v) for periods of 30 min, 1 h, 12 h and 24 h. A Pricncipal Compound Analysis of UV-vis spectral window (200-700 nm) was able to discriminate gasoline-exposed samples according to both exposure time and gasoline concentration. Changes in carotenoid profile composition were observed. Decreased carotenoid content was associated to gasoline exposure time, being lutein and trans-β-carotene the major compounds found. Higher gasoline concentrations negatively interfered with phenolic compounds accumulation. In addition, increased gasoline concentrations corresponded to decreased intracellular starch grains content as well as increased its deposition on cell wall external surface. Data obtained allow us to conclude that gasoline can damage Hypnea musciformis physiology and cell morphology. This is important, considering Hypnea musciformis carotenoids and phenolics are potential biomarkers of environmental stress investigated, as well as its increased cell wall thickness to avoid gasoline diffusion.

https://doi.org/10.1590/0102-33062018abb0379 699 downloads

13.

MODELOS DE REGRESSÃO ALEATÓRIA PARA CARACTERÍSTICA DE CRESCIMENTO EM BOVINOS DA RAÇA GUZERÁ
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Ferreira, Jorge Luis

; Bresolin, Tiago

; Lopes, Fernando Brito

; Garcia, José Américo Soares

; Nepomuceno, Leandro Lopes

; Schmidt, Aline Beatriz

; Lobo, Raysildo Barbosa

Ciência Animal Brasileira

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2017, Volume 18 elocation e39566

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O objetivo do presente trabalho foi estimar componentes de (co)variâncias e parâmetros genéticos para características de pesos do nascimento ao sobreano (550 dias de idade) para bovinos da raça Guzerá, por meio de modelos de regressão aleatória. Os dados utilizados são de animais (machos e fêmeas) nascidos entre 1993 e 2011 e pertencentes a dez fazendas de sete estados brasileiros. O modelo de melhor ajuste considerou os efeitos genéticos aditivos diretos e maternos e os de ambiente permanente do animal ajustado usando polinômios ortogonais de Legendre de quarta, terceira e segunda ordem, respectivamente. As maiores estimativas de herdabilidade diretas foram observadas para os pesos ao nascimento (0,88) e ao sobreano (0,70). As correlações genéticas foram de moderada a alta magnitude, mantendo-se elevada mesmo com o aumento da distância entre as idades.

Abstract The aim of this study was to estimate (co)variance components and genetic parameters from birth to yearling weight (550 days of age) in Guzerá cattle, using random regression models. Data set from animals (male and female) born between 1993 and 2011 belonging to ten farms in seven Brazilian States were used. The best-fit model considering direct and maternal genetic effect and permanent environmental animal effect were adjusted by fourth, third, and second order, respectively, using orthogonal polynomials of Legendre. The higher estimated values of direct heritability were observed in birth (0.88) and yearling weight (0.70). The genetic correlations were moderate to high magnitude, remaining up even with the increase in the ages gap.

https://doi.org/10.1590/1089-6891v18e-39566 1115 downloads

14.

Casca de soja em substituição ao feno de alfafa em dietas fareladas para coelhos em crescimento
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Toledo, Geni Salete Pinto de

; Eggers, Daniel Prois

; Silva, Leila Picolli da

; Pacheco, Paulo Santana

; Klinger, Ana Carolina Kohlrausch

; Capitânio, Janaína Roberta

; Schmidt, Tiago

; Ortiz, Jossiane

Ciência Rural

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Out 2012, Volume 42 Nº 10 Páginas 1896 - 1900

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

O presente trabalho foi realizado no período de 16 de novembro a 28 de dezembro de 2009, totalizando 42 dias. Foram utilizados 36 animais distribuídos em três tratamentos de 12 repetições cada, em delineamento inteiramente casualizado. Os tratamentos consistiram de TA =dieta sem inclusão de casca de soja (CS); TACS=dieta com inclusão de 50% de casca de soja e TCS=dieta com inclusão de 100% de casca de soja em substituição ao feno de alfafa. As dietas foram isonutritivas, formuladas para atender às necessidades da categoria correspondente, de acordo com o AEC (1987). Foram avaliados os dados de desempenho animal, as características de carcaça e a viabilidade econômica. Os resultados foram submetidos à analise de variância e as médias comparadas pelo teste de Tukey a 5% de significância, com auxílio do pacote estatístico SAS (2003). Houve diferença para o consumo alimentar e conversão alimentar, já que os animais alimentados com TCS consumiram menos ração que os do TA e apresentaram melhor conversão. Para as características de carcaça, não houve diferença entre os tratamentos, com exceção do peso de pele, que foi superior para os animais alimentados com a dieta TA. O índice de eficiência econômica demonstrou que a casca de soja pode substituir em 100% o feno de alfafa.

The experiment was conducted from November 16 to December 28, 2009, add up 42 days. 36 animals of 35 days old were utilized and assigned to three treatments of 12 repetitions each in experimental design completely randomized. The treatments were: TA=Soybean hulls without; TACS=inclusion soybean hulls 50% and TCS=inclusion soybean hulls 100% substitution of Alfalfa at diet. The diets were isonutritives, formulated by requirement AEC (1987). The avaluated parameters were: performance animal, characteristics carcass and analyze economical. Data were analized by analysis of variance and the average compared by Tukey test (P<0.05). Values differences were detected for average feed intake and feed conversion ratio, where rabbits to feeding diets with TCS had consumption lower that to TA and showed better conversion. For the carcass characteristics effects of inclusion of soybean hulls were no significant, with exception of weight epidermis had higger for animals fed with diet TA. The economical analysis of the results showed that the formulation with soybean hulls will be to substitute the alfafa until 100%.

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15.

Alterações climáticas, sociais e políticas em Portugal: processos de governança num litoral em risco
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Schmidt, Luísa

; Santos, Filipe Duarte

; Prista, Pedro

; Saraiva, Tiago

; Gomes, Carla

Ambiente & Sociedade

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Abr 2012, Volume 15 Nº 1 Páginas 23 - 40

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

O litoral português é um dos mais ameaçados pela erosão costeira na Europa, um fenômeno que deverá ser agravado pelas alterações climáticas, devido à subida do nível médio do mar e à alteração do regime das ondas na costa atlântica. A par desta fragilidade física, a zona costeira tem sido palco de uma acelerada pressão urbana e turística, que em Portugal se acentuou a partir dos anos 60. Este fenômeno gera uma condição de fragilidade social, que se vem associar a uma fragilidade política resultante da incapacidade do Estado para enfrentar com consistência a gestão do litoral. A principal resposta aos problemas do litoral tem sido o investimento em estruturas pesadas fortemente apoiado por fundos comunitários. Apesar deste tipo de investimento estar cada vez mais comprometido, devido à recessão económica e à perspetiva de redução dos fundos europeus. Partindo de três estudos de caso, a Norte, Centro e Sul, neste artigo abordamos a atual condição social da perceção do risco em três zonas instáveis do litoral português, nas quais foram instalados núcleos urbanos com forte motivação turística: Vagueira, Costa da Caparica e Quarteira. Apesar de terem em comum dinâmicas de crescimento recentes, estas zonas apresentam processos diferenciados de ocupação e erosão. O artigo aborda os três locais a partir da sua condição administrativa e dos efeitos das políticas públicas de ordenamento do litoral. E propõe uma reflexão sobre a necessidade de novos modelos institucionais de governança e de gestão costeira sustentáveis.

The Portuguese coast is one of the most threatened by coastal erosion in Europe, a phenomenon that will be intensified by climate change, due to sea level rise and changes in the wave system in the Atlantic coast. Along with this physical fragility, the coast has witnessed an accelerated urban and tourist pressure, which increased in Portugal since the 60's. This phenomenon creates social fragility, which in turn links with a political fragility resulting from the state's inability to deal with coastal management in a consistent way. The main response to coastal problems has been investing in heavy defence structures strongly supported by EU funds. However, this type of investment is increasingly compromised due to the economic downturn and the prospective reduction of European funds. Based on three case studies - in the North, Centre and South of Portugal - we will address the current social condition of risk perception in three unstable areas of the Portuguese coast, where urban centres with a strong touristic motivation were installed: Vagueira, Costa da Caparica and Quarteira. Despite having in common recent growth dynamics, these areas show different occupation processes and different levels of coastal erosion. The paper addresses these three places from the point of view of its administrative condition and the effects of public policies for coastal planning. Furthermore we propose a reflexion about the need for new institutional models of governance and sustainable coastal management.

6757 downloads Citado 1 vez em SciELO

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