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Registros recuperados: 9
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Apparent selectivity of sheep in deferred marandu palisadegrass pastures with variable initial heights Arq. Bras. Med. Vet. Zootec.
Santos,M.E.R.; Afonso,L.E.F.; Carvalho,B.H.R.; Rêgo,A.C.; Queiroz,G.J.S.; Medica,J.A.S.; Moraes,L.S.; Carmo,L.L.S..
ABSTRACT The objective of this study was to evaluate the apparent selectivity of sheep in marandu palisadegrass (Urochloa brizantha cv. Marandu) pastures with four heights at the beginning of the deferment period (15, 25, 35 and 45cm). The deferment period was 92 days and started on 03/21/2014. Evaluations occurred in the beginning (first week), middle (45th day) and end (92nd day) of the grazing period, in winter (06/21/2014 to 09/21/2014). Deferred pastures with 15 and 25cm presented lower forage mass (FM), but higher live leaf (LL) percentage in FM than deferred pastures with 35 and 45cm. The live stem percentage in the FM and the apparent selectivity index (ASI) of the LL were superior in the deferred pasture with 45cm. The dead stem (DS) percentage in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pasture deferment; Forage mass; Hand-plucked sample; Urochloa brizantha syn. Brachiaria brizantha.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000501727
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Dual-purpose wheat grain and animal production under different grazing periods PAB
Pitta,Christiano Santos Rocha; Soares,André Brugnara; Assmann,Tangriani Simioni; Adami,Paulo Fernando; Sartor,Laércio Ricardo; Migliorini,Francisco; Sollenberger,Lynn Elwood; Assmann,Alceu Luiz.
The objective of this work was to evaluate the influence of different grazing periods on beef animal production and on wheat forage and grain yield. The experiment was carried out in Pato Branco, PR, Brazil. Six grazing periods were evaluated (0, 21, 42, 63, 84, and 105 days) on dual-purpose wheat cultivar BRS Tarumã. Purunã steers, with average live weight of 162 kg and ten months of age, were kept under continuous grazing using a variable stocking rate, in order to maintain the established sward height of 25 cm. Greater increases in total animal gain (TAG) occurred with longer grazing periods. However, there was little increase after 63 days (490 kg ha-1), and TAG decreased from 552 to 448 kg ha-1 between 84 and 105 days. Grain yield decreased from 2,830...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; 'BRS Tarumã'; Forage mass; Nutritive value; Purunã steers; Weight gain.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001000036
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Estrutura do capim-braquiária durante o diferimento da pastagem - doi: 10.4025/actascianimsci.v32i2.7922 Animal Sciences
Santos, Manoel Eduardo Rozalino; Universidade Federal de Viçosa; Fonseca, Dilermando Miranda da; Universidade Federal de Viçosa; Gomes, Virgilio Mesquita; Universidade Federal de Viçosa; Balbino, Eric Márcio; Universidade Federal de Viçosa; Magalhães, Marcela Azevedo; Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista .Júlio de Mesquita Filho (UNESP).
O experimento foi realizado para avaliar o número de perfilhos, a massa de forragem e de seus componentes morfológicos em pastos de Brachiaria decumbens cv. Basilisk durante o diferimento da pastagem. Os tratamentos foram quatro períodos de diferimento (18, 46, 74 e 121 dias), a partir de 8/3/2004. O delineamento foi em blocos casualizados com duas repetições. Foram determinados os números de perfilhos vegetativos (PV), reprodutivos (PR) e mortos (PM), bem como as massas de lâmina foliar verde (MLV), colmo verde (MCV) e forragem morta (MFM). Durante o período de diferimento houve redução no número de PV (de 1.491 para 944 perfilhos m-2). Os números de PR e PM não foram influenciados pelo período de diferimento e suas médias foram 211 e 456 perfilhos m-2,...
Tipo: Pesquisa de campo Palavras-chave: Forragicultura e Pastagens Brachiaria decumbens; Composição morfológica; Densidade populacional de perfilho; Massa de forragem Pastagem e forragicultura Brachiaria decumbens; Forage mass; Morphological composition; Tiller population density.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7922
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Grazing criteria for perennial peanut (Arachis pintoi cv. Amarillo) consumed by sheep in rotational stocking Arq. Bras. Med. Vet. Zootec.
Kröning,A.B.; Costa,O.A.D.; Farias,P.P.; Martins,L.A.; Ott,O.G.; Macari,S.; Ferreira,O.G.L..
ABSTRACT The objective of work was to study the productive profile of perennial peanut in a rotational stocking environment under different criteria. The treatments corresponded to pre-grazing height of 14 and 18cm or 95% of light interception (LI) distributed in a completely randomized design. The studied variables were forage mass, percentage of structural components, forage mass and the structural components in the lower and upper canopy strata. The entrance criterion of 18cm in height, despite having higher forage mass, presented lower percentage of leaves and higher percentage of stems and forage losses. The criteria of 14cm and 95% light interception presented similar production between them and the highest rate of forage accumulation. In all...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forage mass; Light interception; Lower stratum; Upper stratum.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000300997
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Produção de forragem e desempenho animal em pastagens de coastcross consorciada ou não com Arachis pintoi, com e sem nitrogênio - DOI: 10.4025/actascianimsci.v30i4.6466 Animal Sciences
Ribeiro, Ossival Lolato; UNIOESTE; Cecato, Ulysses; UEM; Roma, Cláudio Fabrício da Cruz; UEM; Faveri, Juliana Cantos; UEM; Gomes, José Augusto Nogueira; UEM; Barbero, Leandro Martins; UEM.
O estudo objetivou avaliar a produção de forragem e desempenho animal em pastagens de Coastcross + Arachis pintoi; Coastcross + Arachis pintoi com 100 kg ha-1 de N; Coastcross + Arachis pintoi com 200 kg ha-1 de N e Coastcross com 200 kg ha-1 de N, nas estações de inverno, primavera, verão e outono. Utilizou-se o delineamento experimental em blocos ao acaso, com os tratamentos em parcelas subdivididas, com duas repetições. Foram avaliados: acúmulo de massa de forragem e acúmulo diário de massa de forragem, ganho médio diário (GMD), ganho de peso vivo por área e taxa de lotação. A utilização de Coastcross + 200 kg ha-1 de N e as melhores condições climáticas na primavera e verão favoreceram tanto o acúmulo de massa de forragem (26.764 kg ha-1 de MS) quanto...
Palavras-chave: 5.04.04.00-8 Pastagem e Forragicultura acúmulo de forragem; Consorciação; Ganho médio diário; Lotação; Massa de forragem; Peso vivo por hectare. accumulation of forage; Intercropping; Average daily gain; Stocking; Forage mass; Live weigth ha-1..
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6466
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Production parameters and forage loss of oat and rye grass pastures managed with beef heifers fed diets with energy supplementation R. Bras. Zootec.
Pizzuti,Luiz Angelo Damian; Alves Filho,Dari Celestino; Brondani,Ivan Luiz; Freitas,Leandro da Silva; Metz,Patrícia Alessandra Meneguzzi; Callegaro,Álisson Marian; Pacheco,Rangel Fernandes; Pereira,Lucas Braido.
Production parameters of intercropped pastures of oat and rye grass managed with beef heifers supplemented with brown rice meal and/or protected fat were evaluated. Twenty-eight Charolais × Nellore crossbred heifers at initial average age of 18 months and initial average live weight of 274.9 kg were utilized in the experiment. Animals were kept on oat + rye grass pastures and distributed in the following treatments: no-supplementation (NS): heifers kept only in pastures; Megalac (MEG): supplementation with protected fat; brown rice meal (BRM): supplementation with BRM; BRM + MEG: supplementation with BRM plus protected fat. The greater participation of oat leaf was from July 5th to August 10th, 2009 and of rye grass, from August 30th to September 26th,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crude protein; Forage loss; Forage mass; Intake; Leaf blade offer.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800018
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Soil bulk density and biomass partitioning of Brachiaria decumbens in a silvopastoral system Scientia Agricola
Paciullo,Domingos Sávio Campos; Castro,Carlos Renato Tavares de; Gomide,Carlos Augusto de Miranda; Fernandes,Priscila Beligoli; Rocha,Wadson Sebastião Duarte da; Müller,Marcelo Dias; Rossiello,Roberto Oscar Pereyra.
Shade in silvopastoral systems improves the thermal comfort of animals, but it may also affect the pasture productivity and can contribute to soil compaction in the shaded areas due to the increase in the number of animals looking for comfort. The effect of grazing at various distances from tree rows (under the tree canopy, at 6 and at 12 m away from the trees) on the soil bulk density and on the aerial and root biomass of Brachiaria decumbens was evaluated in both the dry and the rainy seasons. The study was carried out on an Orthic Ferralsol in a randomized block design with two replications. Tree rows were composed of Eucalyptus grandis and Acacia mangium species, and the paddocks were submitted to a rotational stocking management, using Holstein (Bos...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forage mass; Root mass; Soil compaction; Shading; Shoot/root ratio.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500014
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Sward structure and herbage yield of rotationally stocked pastures of 'Marandu' palisadegrass [Brachiaria brizantha (A.Rich.) Stapf] as affected by herbage allowance Scientia Agricola
Braga,Gustavo José; Pedreira,Carlos Guilherme Silveira; Herling,Valdo Rodrigues; Luz,Pedro Henrique de Cerqueira; Lima,César Gonçalves de.
In ruminant-forage systems herbage allowance (HAL) has a major impact on grazing intensity and sward structure, affecting animals, plants, and ultimately, pasture yield. Data on HAL responses of tropical cultivated pastures are scarce and this information may be useful in optimizing pasture utilization. The objective of this study was to describe and contrast sward structure and herbage accumulation responses of 'Marandu' palisadegrass [Brachiaria brizantha (A.Rich.) Stapf] pastures to HAL during two grazing seasons (warm-rainy season of 2003 and 2004). Treatments were four daily HAL levels, 5, 10, 15 and 20 kg herbage mass per 100 kg live weight (%) in a rotational stocking system with 35 days of grazing cycle (28-day rest; 7-d grazing). Post-graze swards...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Herbage accumulation; Sward height; Light interception; Forage mass.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200003
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Sward structure and ingestive behavior of cows in tropical pastures managed under different forage allowances Arq. Bras. Med. Vet. Zootec.
Janusckiewicz,E.R.; Casagrande,D.R.; Raposo,E.; Bremm,C.; Reis,R.A.; Ruggieri,A.C..
ABSTRACT This study evaluated how changing the structure of Brachiaria brizantha cv. Marandu pasture under different forage allowances (FA) of 4, 7, 10 and 13kg DM/100kg BW (body weight) affected animal behavior over a two-year evaluation period. The experiment was conducted as a randomized block design with three replications (paddock). Sward height, total forage, and stem mass were lower for pastures managed with lower FA. Lower leaf mass was observed for lower FA in the second year. In hand-plucked samples, leaf and stem percentages remained unchanged in the morning but leaf percentage increased while stems decreased in the afternoon. Permanence time decreased linearly with increasing FA. In turn, a quadratic effect was observed for displacement rate....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bite rate; Displacement; Forage mass; Sward height.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000602009
Registros recuperados: 9
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