P. G. de Abreu

Concordia University Wisconsin

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Valéria Maria Nascimento Abreu

Brazilian Agricultural Research Corporation

Arlei Coldebella

Brazilian Agricultural Research Corporation

V. M. N. Abreu

Brazilian Agricultural Research Corporation

L. dos S. Lopes

Universidade Estadual de Campinas (UNICAMP)

F. R. F. Jaenisch

Concordia University Wisconsin

Luana Araújo Sabino

Universidade Estadual de Campinas (UNICAMP)

Vilmar Rodrigues de Sousa Júnior

Universidade Estadual de Campinas (UNICAMP)

D. P. de Paiva

Brazilian Agricultural Research Corporation

Tadayuki Yanagi

Universidade Federal de Lavras

Dian Lourençoni

Universidade Federal do Vale do São Francisco

Cooperative Institutions

Brazilian Agricultural Research Corporation

Concordia University Wisconsin

Universidade do Contestado

California Native Plant Society

Instituto Nacional de Investigaciones Agricolas

Empresa de Pesquisa Agropecuária do Rio Grande do Norte

Wageningen University & Research

Universidade Estadual Paulista (Unesp)

Universidade Federal de Viçosa

Center for Climate and Resilience Research

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Variación somaclonal en seis genotipos de arroz

Gelis Torrealba Efraín Salazar Rosa Álvarez Nelly Delgado Rosana Figueroa

espanolEl objetivo de la investigacion se baso en utilizar Somaclones (S) de 6 genotipos de arroz, Oryza sativa L., mejorando algunas caracteristicas agronomicas y de calidad de grano a traves de variacion somaclonal en la variedad CIMARRON y las lineas avanzadas: CT10310-15-3-2P-4-3, CT10338-16-1-1-1T, CT9682-2-M-14-1-M-1-3PM, CT9868-3-2-3-1-4P-M-1-3P y CT9509-17-3-1-1-M-1-3P-M-3-3P. Tres S de CT10310-15-3-2P-4-3, de 41 S evaluados en INIA Guarico, presentaron los mejores resultados para calidad de grano (mayor porcentaje de grano entero, centro blanco y yeso reducidos) y uno de estos S presento ademas una reduccion en la esterilidad de las espiguillas. La caracterizacion molecular fue realizada con marcadores RAPDs (ADN polimorfico amplificado al azar), llevados a cabo en el Laboratorio de Biotecnologia del INIA-CENIAP. La temperatura de gelatinizacion de CT9868-3-2-3-1-4P-M-1-3P mejoro, encontrandose S con valores intermedios. Cuatro S de CIMARRON mostraron menor porcentaje de infeccion con el virus de la hoja blanca, pasando de 75% de infeccion a un maximo de 30% de infeccion en los S. En los S de CT10338-16-1-1-1T no se obtuvo ninguno con resistencia completa al dano directo de sogata (Tagosodes orizicolus), sin embargo, algunos de ellos presentaron reaccion intermedia al insecto. El 92,47% de los S de CT9682-2-M-14-1-M-1-3P-M resultaron resistentes al virus de hoja blanca. Los S del CT9509-17-3-1-1-M-1-3P-M-3-3P evaluados en INIA Portuguesa tuvieron un comportamiento agronomico inferior al testigo local. EnglishThe objective of this research was Somaclones of six genotypes of rice, Oryza sativa L., to improve some agronomic and grain quality characteristicof the following breeding lines: CIMARRON, CT10310-15-3-2P-4-3, CT10338-16-1-1-1T, CT9682-2-M-14-1-M-1-3P-M, CT9868-3-2-31-4P-M-1-3P and CT9509-17-3-1-1-M-1-3P-M-3-3P. Of 41 somaclones evaluated, three CT10310-15-3-2P-4-3 somaclones were found to have better grain quality, white belly reduction and decreased endosperm chalkiness and one somaclone, also showed lower panicle sterility when evaluated in INIA Guarico. Molecular differentiation was performed at the Biotechnology Laboratory of INIA-CENIAP, using random amplified polymorphism DNA (RAPDs). Gelatinization temperature of CT9868-3-23-1-4P-M-1-3P improved, changing from low to medium. Four somaclones of CIMARRON showed reduced hoja blanca virus infection, from 75% infection in the check to a maximum of 30% of infection in the somaclones. Some somaclones derived from CT10338-16-1-1-1T showed intermediate reaction to direct damage caused by the brown plant hopper (Tagosodes orizicolus), no one was found to be completely resistant. About 92.47% of CT9682-2-M-14-1-M-1-3P-M somaclones were resistant to hoja blanca virus. Somaclones from CT9509-17-3-1-1-M-1-3P-M-3-3P evaluated in INIA-Portuguesa had an inferior agronomic behavior.

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Análise termográfica da temperatura superficial de telhas

Revista Brasileira de Engenharia Agrícola e Ambiental (2011)

P. G. de Abreu Valéria Maria Nascimento Abreu Arlei Coldebella L. dos S. Lopes V. da Conceição

Neste trabalho objetivou-se realizar imagens termográficas da superfície de telhas visando avaliar sua temperatura superficial. Os tratamentos mensurados se constituíram de: T1 -Telha Coppo Venneto Ondulada Cinza; T2 - Telha Coppo Venneto Ondulada Marfim; T3 - Telha Plana Marfim; T4 - Telha Plana Cinza; T5 - Telha de Barro Colonial esmaltada; T6 - Telha Ondulada de Cimento Amianto e T7 - Telha de Barro Francesa. Cada unidade experimental foi composta de três telhas sobrepostas uma sobre a outra, exceto no tratamento de telha ondulada de cimento amianto. O delineamento experimental foi em blocos casualizados com três repetições. Os dados coletados em cada horário foram analisados por meio do modelo de medidas repetidas, utilizando-se o procedimento MIXED do SAS. As temperaturas da superfície inferior das telhas foram muito parecidas ao longo do dia. As telhas com coloração marfim obtiveram melhores valores de temperatura superior e inferior que as telhas com coloração cinza, nas respectivas categorias. A telha de barro colonial obteve maior temperatura da superfície inferior que as demais telhas.

10.1590/s1415-43662011001100013

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Avaliação de Coberturas de Cabanas de Maternidade em Sistema Intensivo de Suínos Criados ao Ar Livre (Siscal), no Verão

Revista Brasileira de Zootecnia (2001)

P. G. de Abreu Valéria Maria Nascimento Abreu O. A. Dalla Costa

O objetivo deste trabalho foi estudar as condições térmicas ambientais de diferentes materiais de cobertura de cabana de maternidade, no verão, utilizando os seguintes tratamentos: 1) cabana de maternidade coberta com fécula de isopor 2) cabana de maternidade coberta com isolamento de alumínio 3) cabana de maternidade coberta com tela e capim na cobertura 4) cabana de maternidade coberta com lona e capim na cobertura 5) ambiente ao ar livre e 6) à sombra da árvore. O delineamento experimental usado foi em blocos casualizados, em esquema de parcelas subdivididas, com 6 tratamentos nas parcelas, 5 horas nas subparcelas e 3 repetições. A categoria animal utilizada foi porcas lactantes, Landrace x Large White, distribuídas aleatoriamente por ordem de parto. Foi determinada a Umidade Relativa do Ar (UR), a Velocidade do Ar, a Temperatura Ambiente (Ta) e foram calculados o Índice de Temperatura de Globo e Umidade (ITGU) e a Carga Térmica Radiante (CTR). Apesar de os materiais utilizados como cobertura de maternidade terem melhorado o conforto térmico das porcas em relação as condições ambientais, ainda, não foram suficientes em atender as condições ideais de conforto térmico.

10.1590/s1516-35982001000700010

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Ventiladores na produção de aves.

P. G. de Abreu V. M. N. Abreu

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Avaliação da temperatura superficial de telhas por termografia.

P. G. de Abreu V. M. N. Abreu Arlei Coldebella L. dos S. Lopes V. da Conceição

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STABILITE DES TALUS DE RIO DE JANEIRO, BRESIL

BULL LIAISON LAB PONTS CHAUSS (1981)

U Heine P. G. de Abreu Marina Baptista Queiton Carmo

LES GLISSEMENTS DE TERRAIN AUTOUR DE RIO DE JANEIRO SE SONT PRODUITS DANS DES CONDITIONS GEOLOGIQUES ET GEOTECHNIQUES VARIEES ; LA SUPERINTENDENCIA DE GEOTECNICA ESSAIE, DANS CHAQUE CAS, D'APPLIQUER DES SOLUTIONS TENANT COMPTE DES CONDITIONS NATURELLES ET DES SITES. UN SOIN PARTICULIER A ETE PRIS POUR TRAITER LA COUVERTURE VEGETALE, SURTOUT POUR LES GRANDES ETENDUES. NOTRE EXPOSE CONSISTE EN UN RESUME DE LA GEOLOGIE DE RIO DE JANEIRO, MONTRANT L'INFLUENCE DES DIFFERENTS FACTEURS GEOLOGIQUES SUR LA STABILITE DES PENTES ET LES DIVERSES SOLUTIONS POUR STABILISER LES TALUS, A SAVOIR : - TALUS DE SOLS : SOUTENEMENTS, DRAINAGE, TALUTAGE, PLANTATION, - TALUS DE ROCHES : FIXATION D'ECAILLES AU MOYEN DE TIRANTS, DESTRUCTION DE BLOCS OU D'ECAILLES, GABIONS, REBOISEMENT, - TALUS DE SOLS ET ROCHES : DRAINAGE, TRAVAUX PONCTUELS, REBOISEMENT. (A) (VOIR FICHE GENERALE DIRR 112354)

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Comparação de dois modelos de escamoteadores sobre o desempenho dos leitões

Acta Scientiarum Animal Sciences (2011)

Luana Araújo Sabino P. G. de Abreu Vilmar Rodrigues de Sousa Júnior Valéria Maria Nascimento Abreu L. dos S. Lopes

The objective of this study was to evaluate the effect of creep models for heating and piglet performance. Model 1 (MOD 1), consisted of eight creep of masonry, electrical resistance heating built into the floor and lighting with fluorescent lamps of 7 W. Model 2 (MOD 2), consisting of eight creep of wood and heating by 60 W incandescent lamp The data of temperature and humidity were recorded from birth to 26 days of life and litter, the average litter weight was obtained on the second day and on day 21 of life. The statistical model for repeated measures using the MIXED of SAS (2002-2003) was used. We tested the effects of model, week and interaction. Creep MOD 1 got an average of 20.75% of the temperature data within the thermal comfort during the experimental period in relation to MOD 2. Only the first two weeks the MOD was better with 26.04%, while the MOD 1 was 3.90%. MOD 1 litters had higher final weight of 13.80% compared to litter the MOD 2. We conclude that the MOD 1 achieved the best results related to the environment and average weight gain of litters.

Litter

10.4025/actascianimsci.v34i1.11675

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SOMACLONAL VARIATION OF SIX RICE GENOTYPES

Gelis Torrealba Efraín Salazar Rosa Álvarez Nelly Delgado Rosana Figueroa

SUMMARY The objective of this research was Somaclones of six genotypes of rice, Oryza sativa L., to improve some agronomic and grain quality characteristic of the following breeding lines: “CIMARRON”, “CT10310-15-3-2P-4-3”, “CT10338-16-1-1-1T”, “CT9682-2-M-14-1-M-1-3P-M”, “CT9868-3-2-31-4P-M-1-3P” and “CT9509-17-3-1-1-M-1-3P-M-3-3P”. Of 41 somaclones evaluated, three CT10310-15-3-2P-4-3 somaclones were found to have better grain quality, white belly reduction and decreased endosperm chalkiness and one somaclone, also showed lower panicle sterility when evaluated in INIA Guarico. Molecular differentiation was performed at the Biotechnology Laboratory of INIA-CENIAP, using random amplified polymorphism DNA (RAPDs). Gelatinization temperature of CT9868-3-23-1-4P-M-1-3P improved, changing from low to medium. Four somaclones of CIMARRON showed reduced hoja blanca virus infection, from 75% infection in the check to a maximum of 30% of infection in the somaclones. Some somaclones derived from CT10338-16-1-1-1T showed intermediate reaction to direct damage caused by the brown plant hopper (Tagosodes orizicolus), no one was found to be completely resistant. About 92.47% of CT9682-2-M-14-1-M-1-3P-M somaclones were resistant to hoja blanca virus. Somaclones from CT9509-17-3-1-1-M-1-3P-M-3-3P evaluated in INIA-Portuguesa had an inferior agronomic behavior.

Somaclonal variation

Panicle

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Curtain color and lighting program in broiler production: II. carcass and parts yield and abdominal fat deposition

Revista Brasileira de Zootecnia (2011)

Valéria Maria Nascimento Abreu P. G. de Abreu Arlei Coldebella F. R. F. Jaenisch Doralice Pedroso de Paiva

The objective of the present study was to evaluate carcass and parts' yield, abdominal fat deposition and breast and foot pad blisters of broilers reared under two lighting programs (nearly continuous or intermittent) in broilers houses with yellow and blue curtains. The experiment was conducted between June, 2004 and May, 2005. Six flocks were sequentially housed in four 12 × 10 m broiler houses divided into 4 pens with 200 birds each. The litter was reused six times or until flock 6. A completely randomized design in a 6 × 2 × 2 factorial arrangement (flocks, lighting programs, curtains) with four replicates per treatment was applied. A total of 288 birds were evaluated for carcass yield. Curtain color did not affect carcass or parts' yield. The effect of lighting program and curtain color on carcass yield may depend on other factors related to flock. Intermittent lighting program promoted the highest drumstick and thigh yields. Lighting programs and curtain colors did not affect abdominal fat deposition or the presence of breast and foot pad blisters.

Flock

Abdominal fat

Litter

10.1590/s1516-35982011000900027

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Curtain color and lighting program in broiler production: III - thermal comfort

Revista Brasileira de Zootecnia (2011)

P. G. de Abreu Valéria Maria Nascimento Abreu Arlei Coldebella F. R. F. Jaenisch Doralice Pedroso de Paiva

The objective of this study was to evaluate the thermal comfort of broilers reared under two lighting programs (almost continuous and intermittent) in broiler houses with yellow or blue lateral curtains. The experiment was carried out from June 24, 2004 until May 12, 2005. Six consecutive flocks were housed in four 12 × 10 m broilers houses internally divided into four pens of 200 birds each. Six flocks were raised on the same litter. The registration of data was accomplished at 3-hour intervals, for 24 hours twice a week. In the center of each pen and outside the house, dry and wet bulb temperatures, black globe temperature, and air velocity were collected. Based on the data collected at each time, air temperature (AT) (ºC), black globe humidity temperature index (BGHTI), radiant thermal load (RTL) (W/m²), and relative air humidity (RH) were determined. Harmonic analysis was used to estimate m, R, and f parameters. In general, the best results in terms of thermal comfort for the birds were found when near-continuous lighting program and yellow curtain were used.

Wet-bulb globe temperature

Flock

Dry-bulb temperature

Incandescent light bulb

Heat index

Air velocity

10.1590/s1516-35982011000900025

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