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Effect of nitrogen fertilization and correlations between morphogenesis and structural parameters of grass pastures Sci. Agrar.Paran. / SAP
Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Machado, Silvia Layse Mendes; Ruas, José Reinaldo Mendes; Reis, Sidnei Tavares dos; Rigueira, João Paulo Sampaio; Pires, Daniel Ananias de Assis; Viana, Maria Celuta Machado; Silva, Edilaine Aparecida.
The objective of this work was evaluate the association between morphogenetic and structural characteristics of Brachiaria decumbens managed at different doses of nitrogen. The experimental design was a randomized block with four replications. Four levels of nitrogen fertilization were evaluated: 100; 200; 300 and 400 kg of N ha-1 as urea, divided in two doses during the rainy season (January to March) and the control treatment without fertilization. There was an increase in leaf appearance rate (LAR), leaf elongation rate (LER) and tiller number (NP) up to 21.4%; 23.8% and 50.5% for the highest dose of N (400 kg N ha-1) compared to the control group, respectively. There was a positive correlation (r = 0.53) (p<0.05) between the LER and leaf life span...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria decumbens; Forragem; Manejo; Nitrogênio.
Ano: 2016 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13498
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Fermentation kinetics and in vitro degradation rates of grasses of the genus Cynodon Animal Sciences
Reis, Sidnei Tavares dos; Lima, Marcus Vinícius Gonçalves; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Rigueira, João Paulo Sampaio; Santos, Leonardo David Tuffi.
The present study aimed to evaluate the fermentation kinetics and degradation rates of Cynodon grasses estimated by semi-automated technique of in vitro gas production. The forages were: Coastcross, Tifton 85 and Tifton 68. Pressure readings were taken at 0, 2, 4, 6, 8, 10, 12, 15, 19, 24, 30, 36, 48, 72 and 96 hours. Dry matter degradability (DMD) was obtained by the percentage of dry matter (DM) remaining after 0, 6, 12, 24, 48 and 96 hours of fermentation. Tifton 85 showed a higher total gas production (p <0.05). Higher fermentation rates were found at the beginning of fermentation followed by subsequent reduction (p <0.05) over time. Tifton 85 and Tifton 68 showed higher values (p < 0.05) for soluble fraction, potentially degradable insoluble...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.05.03.00-6 forage; Gas production; Semi-automated technique..
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/30009
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Hay Tifton 85 grass under nitrogen doses in different days of regrowth Animal Sciences
Andrade, Weudes Rodrigues; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Gomes, Virgílio Mesquita; Rufino, Leidy Darmony de Almeida; Pires, Daniel Ananias de Assis.
The objective of this study was to evaluate the yield, nutritional value and potential ruminal degradation of Tifton 85 hay (Cynodon spp.) harvested at four regrowth ages (28, 35, 42 and 49 days) and fertilized with two nitrogen doses (N; 100 and 300 kg N ha-1). The experimental design was a randomized block design, arranged in a 4 x 2 factorial scheme, with six replications each. Nitrogen fertilization increased (p < 0.05) dry matter yield and digestible dry matter production of hay and also lignin and crude protein contents. Nitrogen fertilization increased (p < 0.01) the dry matter yield and the digestible dry matter production of hay, as well as lignin (p = 0.01) and crude protein (p = 0.01). The neutral detergent fiber corrected for ash and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens fertilizing; Cynodon spp.; Digestibility; Neutral detergent fiber; Lignin..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/37692
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Morphogenic, structural, productive and bromatological characteristics of Braquiária in silvopastoral system under nitrogen doses Animal Sciences
Carvalho, Zaqueu Gonçalves; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Vianna, Maria Celuta Machado; Silva, Edilane Aparecida; Queiroz, Domingos Sávio.
his study aimed to evaluate the effect of different doses of nitrogen fertilization on the morphogenic, structural, productive and chemical composition of Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk in a silvopastoral system with eucalyptus. The experimental treatments consisted of pastures of Basilisk cultivar, fertilized with 0, 100, 200, 300 and 400 kg ha-1 year-1 of N, and intercropped with eucalyptus, clone GG 100 (Eucalyptus grandis x E. urophylla). The experimental arrangement followed a randomized block design with four replicates. The evaluated characteristics were: foliar appearance rate, phyllochron, leaf length, leaf elongation rate, leaf life span, foliar senescence rate, number of green leaves per tiller, number of senescent leaves...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens chemical composition; Dry matter production; Eucalyptus; Leaf elongation rate; Urochloa decumbens..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39190
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Nopalea cactus pear fertilized with nitrogen: morphometric, productive and nutritional characteristics Animal Sciences
Leite, João Ricardo Avelar; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Guimarães, Adriano de Souza; Rigueira, João Paulo Sampaio; Gomes, Virgílio Mesquita.
 This study aimed to evaluate the structural, productive and nutritional characteristics of cactus pear (Nopalea cochenillifera Salm Dyck. cv. Miúda/Doce) under five nitrogen doses and two planting orientations. A randomized block design in a 5 x 2 factorial scheme was used in the scheme: five nitrogen doses (0, 150, 300, 450 and 600 kg of N ha-1), and two planting orientations (North/South and East/West), with three replicates. Except for the thickness of the secondary (p = 0.04) and tertiary cladodes (p = 0.02), the morphometric characteristics of the cactus pear were not influenced by the nitrogen doses (p > 0.05). The mean height was 120 cm, the areas of the primary, secondary and tertiary cladodium were 160.9; 208 and 158.4 cm², respectively. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens biomass; Management; Morphometry; Semiarid; Viability..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/38325
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Nutritional parameters of leaf blade from different tropical forages Sci. Agrar.Paran. / SAP
Monção, Flávio Pinto; Oliveira, Euclides Reuter de; Gabriel, Andréa Maria de Araújo; Nascimento, Felipe de Almeida; Pedroso, Fabiano Wust; Freitas, Lucas Lanner.
The aim of this study was to evaluate the leaf blade nutritional value of different genotypes of Cynodon cultivars in four regrowth ages (28, 48, 63 and 79 days), by chemical composition and in vitro dry matter digestibility. The treatments were distributed in a randomized block design, with treatments arranged in a split plot scheme, with the studied genotypes (cultivars) (Tifton 68, Tifton 85, Russell, Jiggs and Vaquero) parcels and the four ages cutting the subplots (28, 48, 63 and 79 days). There was an increase in dry matter content with the advance of plant age ranged from 30% to 70% at 28 and 79 days of regrowth, respectively. A reduction of 25 g kg-1 in crude protein content of the genotypes when it was increased the regrowth age of 28 for 79 days,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical composition; Cynodon; Digestibility.
Ano: 2016 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13244
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Performance and digestibility in feedlot lambs fed hay based diets Animal Sciences
Oliveira, Euclides Reuter de; Monção, Flávio Pinto; Gabriel, Andréa Maria de Araújo; Fernandes, Alexandre Rodrigo Mendes; Moura, Lais Valenzuela; Nascimento, Felipe de Almeida.
This study aimed to evaluate the performance of feedlot lambs fed diets formulated with hay of different genotypes of Cynodon spp. and to compare the dry matter digestibility of diets using different evaluation methods (total fecal collection and chromium oxide). Suffolk crossbred neutered male lambs (n=30), with an average age of 90 days and average body weight of 21.5 kg ± 1.6. Diets were formulated using a standard concentrate and hay of the following genotypes of Cynodon dactylon: Jiggs, Vaquero, Tifton 68, Coast-Cross, Tifton 85 and Russell, in a 60:40 forage concentrate ratio, composing the treatments distributed in a randomized block design in a factorial 5 x 2 arrangement of 5 diets and 2 digestibility evaluation methods. Animals receiving Vaquero...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.05.00-4 Cynodon; Sheep; Chromic oxide; Intensive animal production; Finished.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/30462
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Phenolic acids and ruminal parameters of different varieties of sugarcane in natura or ensiled Animal Sciences
Spínola, Jaime Emerson Laranjeira; Tavares dos Reis, Sidnei; Junqueira de Sales, Eleuza Clarete; Monção, Flávio Pinto; Rigueira, João Paulo Sampaio; Delvaux Júnior, Nelson de Abreu.
This study aimed to determine and measure the phenolic acids in four varieties of sugarcane (RB 855536, RB 765418, SP 80-1842 and SP 80-1816) as fresh and ensiled, and assess the influence of these acids on in situ degradability of dry matter and neutral detergent fiber. The experimental design was completely randomized in a factorial design. For the fraction of dry matter (DM), varieties RB 855536 and SP 80-1842 had average 17.80% higher compared to others. The SP80-1842 and RB 855536 varieties did not differ (p > 0.05), with an average of DM effective degradability of 33.70%. For silage, the highest levels of p-coumaric acid were found in the variety RB 855536, which was 24.64% higher than the varieties RB 765418 and SP 80-1842 (average 12.75%) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.03.00-1 digestibility; Fermentation; Lignin; Silage; Nutritional value.
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/31470
Registros recuperados: 8
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