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| Registros recuperados: 73 | |
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| Santos,Alexandre N.; Silva,Ênio F. de F. e; Silva,Gerônimo F. da; Barnabé,Janice M. C.; Rolim,Mario M.; Dantas,Daniel da C.. |
| ABSTRACT The use of brackish water in agriculture can cause salinization of soils and reduce plant yield. This problem can be minimized by hydroponic cultivation, which improves plant development. The aim of this study was to evaluate the yield of cherry tomatoes grown in hydroponic system with substrate under salinity levels of the nutrient solution (NS), exposure time to salinity and irrigation frequency. The experiment was conducted in a greenhouse, in a randomized complete block design, in a 6 x 2 x 2 factorial scheme with five replicates: six salinity levels of NS prepared with brackish water (3.01; 4.51; 5.94; 7.34; 8.71 and 10.40 dS m-1); two exposure times to NS (60 and 105 days) and two irrigation frequencies (one irrigation per day and irrigation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum Mill; Hydropony; Semiarid. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000200107 |
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| DIAS,DANIEL GONÇALVES; PEGORARO,RODINEI FACCO; MAIA,VICTOR MARTINS; MEDEIROS,ANANIAS COSTA. |
| ABSTRACT Studies with nitrogen and potassium in yellow passion fruit cultivars with high yield potential are scarce in semiarid regions. The aim of this study was to evaluate the influence the N and K doses on productivity and fruit quality of different passion fruit cultivars in irrigated conditions in the northern of Minas Gerais state. The study was installed at experimental farm located in Janaúba-MG. This area was located at 15º 47’ S and 43º 18’ W, 516 m above sea level. The experiment was in completely randomized block with four replications, arranged in 4 x 6 factorial design consisting of four Passion Fruit cultivars (BRS Sol do Cerrado, BRS Ouro Vermelho, BRS Gigante Amarelo, IAC 275) and six N and K doses, which corresponded to 0-0, 50-125,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Semiarid; Cultivars; Productivity; Passiflora edulis Sims f. falvicarpa Deg. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000303001 |
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| OLIVEIRA,INEZ VILAR DE MORAIS; LOPES,PAULO ROBERTO COELHO; SILVA-MATOS,RAISSA RACHEL SALUSTRIANO DA. |
| ABSTRACT The study of phenology is fundamental in introducing cultivars into new regions, mainly in different conditions from those in which they are adapted. The study was conducted in order to characterize the phenological phases of pear (Pyrus communis L.) cultivar ‘Princesinha’, determine the fixation of fruit rate and quantify the production, as well as to determine the interference of climatic factors on the duration the budding cycle, in the region of São Francisco Valley, Petrolina, PE. To perform the phenological reviews four branches were marked in five plants and the data were expressed as percentage; the variables related to productivity were recorded in all orchard plants, data were submitted to descriptive analysis; climate data and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Chilling requirement growing season; Phenology; Semiarid. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000300705 |
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| Lima,Cosmo Rufino de; Bruno,Riselane de Lucena Alcântara; Silva,Katiane da Rosa Gomes da; Pacheco,Mauro Vasconcelos; Alves,Edna Ursulino; Andrade,Albericio Pereira de. |
| The Leguminosae family is one of the most representative botanical families of the Caatinga, with 80 endemic species, highlighting the catingueira (Poincianella pyramidalis). The objective of this research work was to study the maturation process of P. pyramidalis seeds based on the physiological maturity. Five harvest of fruits and seeds were carried out, with 15 days interval each, in a period from July to September 2010. The harvests began 75 days after anthesis (d.a.a.) and lasted until 135 d.a.a. Fruits and seeds were subjected to the following assessments: size, moisture content, and dry mass of fruits and seeds; and germination and vigor of seeds (first count of germination, germination speed index, length and dry mass of seedling). Under the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Catingueira; Semiarid; Maturity; Vigor; Caatinga. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000200007 |
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| Santos,Hellen S.; Santos,Jamile M.S.; Matos,Maria H.T.; Silva,Naisandra B.; Freire,Eliza M.X.; Ribeiro,Leonardo B.. |
| The reproductive cycle of Squamata reptiles is often associated with environmental conditions, such as rainfall. In this respect, seasonal variations may affect the morphology of the ovarian follicles, which are associated with vitellogenesis. The present study describes histological alterations in the ovarian cycle of two lizard species, Tropidurus hispidus (Spix, 1825) and Tropidurus semitaeniatus (Spix, 1825), which inhabit a caatinga region in the state of Rio Grande do Norte. Our goal was to identify morphological differences in the ovarian follicles at each phase of vitelloge nesis and to ascertain if they are associated with rainfall. Three follicular phases were identified in both species: pre-vitellogenesis, vitellogenesis and follicular atresia.... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Ovarian stages; Reproductive cycle; Semiarid; Vitellogenesis. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100086 |
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| Andrade,Alexandro Pereira; Andrade,Alberício Pereira de; Silva,Divan Soares da; Santos,Edson Mauro; Silva,Ivandro de França da; Rêgo,Elizanilda Ramalho do; Bruno,Riselane de Lucena Alcântara. |
| The objective of this study was to evaluate the chemical composition of leaves of maniçoba (Manihot sp.) according to their development stage and their relationship with the soil characteristics. For this purpose, plants in their natural growth areas in the semiarid region of Paraíba State, Brazil, were sampled. Leaves of maniçoba collected in five different locations at four different development stages were harvested and characterized: expanding leaf, completely expanded leaf, leaf at the beginning of senescence and a pool (mixture of all leaves). The evaluated traits were: dry matter, crude protein, neutral detergent fiber, acid detergent fiber, neutral detergent insoluble protein, acid detergent insoluble protein, ash, lignin, cellulose, hemicellulose,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Forage; Semiarid; Xerophilous plants. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400161 |
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| Almeida,Paulo José Presídio; Pereira,Mara Lúcia Albuquerque; Silva,Fabiano Ferreira da; Santos,Alana Batista dos; Pereira,Taiala Cristina de Jesus; Santos,Edileusa de Jesus dos; Moreira,Jeruzia Vitória. |
| This study was conducted with the objective of evaluating the effect of concentrate supplementation, formulated with different ingredients (Mesquite pod meal, sorghum meal or wheat meal and mineral supplementation) on performance, intake and digestibility of nutrients in Santa Inês lambs grazing on urochloa grass during the dry season. Twenty-four uncastrated weaned Santa Inês sheep, with average body weight (BW) 20±2 kg with an average of 120 days of age were used in the assay. The experiment lasted 75 days. The animals grazing deferred Urochloa grass (Urochloa mosambicensis (Hack) Daudy) were distributed into four treatments consisting of mineral supplementation provided ad libitum and concentrated supplements containing mesquite pod meal, sorghum meal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative food; Grazing; Multiple supplement; Semiarid; Urochloa mosambicensis (Hack) Daudy; Weight gain. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300029 |
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| Costa,Roberto Germano; Treviño,Israel Hernandéz; Medeiros,Geovergue Rodrigues de; Medeiros,Ariosvaldo Nunes de; Gonzaga Neto,Severino; Azevedo,Paulo Sérgio de; Pinto,Tiago Ferreira. |
| The objective of this study was to evaluate the feeding behavior and performance of Santa Ines sheep subjected to different levels of substitution of corn by cactus pear in the diet. Forty-fivenon-castrated male Santa Inês sheep with initial live weight of 27.50±0.48 kg were distributed in a completely randomized design with five treatments (0, 70, 140, 210 and 280 g/kg DM) and nine replicates. Dry matter and neutral detergent fiberintakes showed quadratic behavior. Times spent eating, ruminating and total ruminating chews showed increasing linear behavior, while the idle time decreased with increasing amounts of dietary cactus. The feeding efficiency (gDM/h) increased linearly, while differences in rumination efficiency of the DM (g DM/h); NDF intake... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding efficiency; Ruminating chews; Rumination; Semiarid. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100004 |
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| Regadas Filho,José Gilson Louzada; Pereira,Elzânia Sales; Villarroel,Arturo Bernardo Selaive; Pimentel,Patrícia Guimarães; Fontenele,Rildson Melo; Costa,Marcus Roberto Góes Ferreira; Maia,Iana Sérvulo Gomes; Sombra,Weberte Alan. |
| This study was carried out to estimate efficiencies of the utilization of metabolizable energy for maintenance (k m) and weight gain (k g) and to evaluate the Small Ruminant Nutrition System (SRNS) model in predicting dry matter intake and average daily gain of growing Santa Ines sheep. Twenty-four non-castrated Santa Ines sheep, at 50 days of age and with average body weight of 13.00 ± 0.56 kg, respectively, were used. After a 10-day adaptation period, four animals were slaughtered to be used as reference for estimating initial empty body weight and body composition of the other animals. The remaining animals were distributed in a random block design, with the treatments consisting of diets containing different levels of metabolizable energy (2.08, 2.28,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mechanistic model; Nutritional requirements; Semiarid. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100038 |
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| Bezerra,Janieire Dorlamis Cordeiro; Ferreira,Geane Dias Gonçalves; Campos,José Maurício de Souza; Oliveira,Mauro Wagner de; Andrade,Albericio Pereira de; Nascimento Júnior,José Ribamar Silva do. |
| ABSTRACT This study aimed to evaluate the biometric and chemical characteristics of five sugarcane varieties (RB 863129, RB 867515, RB 92579, RB 943365, and RB 98710) grown in a semi-arid climate for use as forage. The experiment was designed as randomized blocks, in a 5 × 2 factorial arrangement (five sugarcane varieties and two evaluation times, 407 and 483 days). Response variables included dry matter productivity, morphological characteristics, chemical composition, digestibility, and ratios among neutral detergent fiber (NDF), Brix, and Pol. For the biometric analyses, there was an interaction effect between the evaluated varieties and harvest times on the variables fresh matter yield, uncovered internodes, and stalk density (MID -middle internode... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding; Forage; Semiarid; Sugar. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000500384 |
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| Pinto,Tiago Ferreira; Costa,Roberto Germano; Medeiros,Ariosvaldo Nunes de; Medeiros,Geovergue Rodrigues de; Azevedo,Paulo Sergio de; Oliveira,Ronaldo Lopes; Treviño,Israel Hernandez. |
| The objective of this study was to evaluate the biometric and morphometric measures, regional composition, carcass characteristics and non-carcass components of Santa Inês lambs submitted to levels of corn replaced by cactus pear in the diet. It was used 45 Santa Ines non-castrated male lambs, with average initial live weight of 25.50 ± 0.48 kg as a completely randomized block design with five treatments (0; 25; 50; 70 and 100%) and nine replicates. There was an effect of the diet on slaughter weight, empty body weight, hot and cold carcass, cold carcass weight, shoulder weight and loin weight. Cactus pear can replace up to 75% of corn in diets for feedlot Santa Inês lambs, without compromising production, carcass characteristics and production of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Buchada; Carcass dressing; Production systems; Retail cuts; Semiarid. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000600023 |
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| Pereira,Taiala Cristina de Jesus; Pereira,Mara Lúcia Albuquerque; Oliveira,Carlos Alberto Santana de; Argôlo,Lizziane da Silva; Silva,Herymá Giovane de Oliveira; Pedreira,Márcio dos Santos; Almeida,Paulo José Presidio; Santos,Alana Batista dos. |
| The objective of this study was to evaluate the effects inclusion of 0%, 33.3%, 66.7% and 100% natural matter (NM) of mesquite pod meal (MPM), in substitution of corn, on the intake, digestibility and feeding behavior of lactating Saanen goats. The forage:concentrate ratio in the diet was 40:60, using elephant grass silage as a forage source. Eight adult lactating goats with about 60 days in milk and weighting 50 kg were divided into two 4 × 4 latin squares and four 17-day experimental periods. Dry matter (DM), crude protein (CP) and total digestible nutrient (TDN) intakes were not influenced by MPM levels. Ether extract (0.51; 0.34; 0.36; 0.20 kg/day) and non-fiber carbohydrate (NFC) (0.54; 0.53; 0.49; 0.36 kg/day) intakes showed a linear effect with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative foods; Digestibility; Ingestive behavior; Intake; Prosopis juliflora; Semiarid. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000200004 |
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| Costa,Marcus Roberto Góes Ferreira; Carneiro,Maria Socorro de Souza; Pereira,Elzânia Sales; Morais Neto,Luiz Barreto de. |
| This study evaluated intake and apparent digestibility of the nutrients in the diet of Morada Nova sheep that received diets containing increasing levels of juazeiro hay in substitution of Tifton 85 bermudagrass hay (0, 33, 67 and 100%). Sixteen non castrated male sheep, weighing an average of 26.75 kg, were used, placed in individual metabolic cages and distributed in a completely randomized block design with four treatments and four replications. Intakes of dry matter, organic matter, crude protein, ether extract, neutral detergent fiber, total carbohydrates, fibrous carbohydrates and non-fibrous carbohydrates and total digestible nutrients were not influenced by the addition of juazeiro hay to the diets, with mean values of 1,042.78 and 595.59 g/day of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Roughage; Semiarid; Zizyphos joazeiro. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100033 |
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| Silva,Thiago Carvalho da; Santos,Edson Mauro; Macedo,Carlos Henrique Oliveira; Lima,Milena Araújo de; Bezerra,Higor Fábio Carvalho; Azevêdo,José Augusto Gomes; Rodrigues,José Avelino Santos; Oliveira,Juliana Silva de. |
| The objective of this study was to evaluate the divergence of bromatological and fermentative characteristics of silages of 25 sorghum (Sorghum bicolor L. Moench) hybrids. The experimental design was completely randomized with 25 treatments and four replications. The mean values of pH differed with variation from 3.45 to 3.87 for hybrids 866005 and 870051, respectively, and the mean pH value was 3.66. The average percentage of lactic acid ranged from 2.90 to 7.43 dag/kg of dry matter (DM) in hybrids 870035 and 866005, respectively, with an average of 4.65 dag/kg DM. Through cluster analysis by the Tocher method and average Euclidean distance based on the fermentative characteristics, five groups were formed: one with 18 hybrids, another with four and three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude protein; Forage conservation; Non-fiber carbohydrates; Semiarid. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500007 |
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| Inácio,Jonas Gomes; Ferreira,Marcelo de Andrade; Silva,Randerson Cavalcante; Silva,Janaina de Lima; Oliveira,Júlio César Vieira de; Santos,Djalma Cordeiro dos; Soares,Luciana Felizardo Pereira; Campos,José Maurício de Souza. |
| ABSTRACT The objective of this study was to evaluate the effect of different concentrate levels (40, 50, 60, and 70% on dry matter basis) on intake, digestibility of nutrients, and performance of heifers fed sugarcane bagasse as exclusive roughage. Twenty Girolando heifers, with an average body weight of 198±25.6 kg were assigned to a completely randomized design, established according to body weight. The intake of dry matter (5.12 to 7.73 kg d-1), organic matter (4.72 to 7.32 kg d-1), crude protein (0.71 to 1.05 kg d-1), and digestible organic matter (3.09 to 4.77 kg d-1) linearly increased with the inclusion of concentrate in the diets. The final weight (238 to 299 kg d-1), body weight gain (0.50 to 1.20 kg d-1), and total weight gain (35.2 to 83.6 kg... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Agro-industrial waste; Digestibility; Intake; Morphometry; Rearing; Semiarid. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100080 |
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| Lins,Stephany Emyle Barbosa; Pessoa,Ricardo Alexandre Silva; Ferreira,Marcelo de Andrade; Campos,José Maurício de Souza; Silva,José Augusto Bastos Afonso da; Silva,Janaina de Lima; Santos,Stefanie Alvarenga; Melo,Tobias Tobit de Barros. |
| ABSTRACT - The objective of this study was to evaluate the effect of replacing wheat bran by spineless cactus (0, 25, 50, 75, and 100%) in sugar cane-based diets on intake and nutrient digestibility and ruminal parameters of sheep. Five sheep (Santa Inês; average initial weight of 34.0±3.6 kg) were fitted with cannulas in the rumen and then assigned to a 5 × 5 Latin square design. The maximum dry matter (DM; 1414 g d−1), digestible organic matter (658 g d−1), and neutral detergent fiber corrected for ash and protein (NDFap; 425 g d−1) intakes were estimated by replacing 80.2, 89.9, and 50.5% of wheat bran. Dry matter and crude protein digestibility increased by 0.60 and 0.85 g kg-1 of DM. With the replacement of 57.1 and 62.2% of wheat bran, a maximum rate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal nutrition; Cactaceous; Dry season; Feed intake; Rumen fermentation; Semiarid. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000100026 |
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| Registros recuperados: 73 | |
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