Herbage intake, methane emissions and animal performance of steers grazing dwarf elephant grass with or without access to Arachis pintoi pastures

Andrade, Ederson Américo de; Filho, Henrique Mendonça Nunes Ribeiro; Liz, Diego Melo de; Almeida, João Gabriel Rossini; Miguel, Marcolino Frederico; Raupp, Gutierri T.; Ramos, Fabiana R.; Almeida, Edison Xavier de

doi:10.17138/tgft(2)4-5

Cited by 5 publications

(6 citation statements)

References 6 publications

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“…The proportion of forage peanut in the mixed dwarf elephant grass × forage peanut pasture was considerably below the minimum required for legumes to contribute to the increase in animal performance (Harris et al, 1997;Ribeiro-Filho;Peyraud 2003). Therefore, ADG of more than 1.0 kg observed in this study may be attributed to the ingestion of legumes when animals had access to the pure forage peanut area, as observed by Andrade et al (2014) who studied steers grazing dwarf elephant grass with or without access to a pure legume area for 6 h per day.…”

Section: Resultssupporting

confidence: 50%

“…Agrotec., Lavras, v.38, n.6, p.607-614, nov./dez., 2014 Different management strategies have been tried to facilitate the access of animals to legumes under both temperate (Solomon et al, 2011) and tropical pasture (Andrade et al, 2014) conditions. Such strategies include the use of pure legume pastures, which can be accessed freely or during certain periods of the day by the grazing animals.…”

Section: Introductionmentioning

confidence: 99%

“…In this context, a 20% increase in herbage DM intake and average daily weight gain were obtained when beef cattle had access to a pure forage peanut area (Arachis pintoi cv. Amarillo) for 6 h per day (Andrade et al, 2014). However, according to those authors, only 38% of the 6-h access time was used for grazing.…”

Section: Introductionmentioning

confidence: 99%

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Herbage intake and animal performance of cattle grazing dwarf elaphant grass with two access times to a forage peanut area

et al. 2014

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Relatively short grazing periods in a pure legume pasture can be an alternative for increasing animal performance in mediumquality tropical pastures. Thus, the aim was to evaluate the herbage intake and animal performance of steers grazing dwarf elephant grass (Pennisetum purpureum Schum. cv. BRS Kurumi) with two access times [2 h (07:00-9:00) and 6 h (07:00-13:00)] to an area of forage peanut (Arachis pintoi cv. Amarillo). Twelve steers (219 ± 28.8 kg LW) were divided into four groups and assessed during three consecutive grazing cycles, from January to March 2013. The crude protein and neutral detergent fiber contents were 158 and 577 g/kg dry matter (DM) for dwarf elephant grass and 209 and 435 g/kg DM for forage peanut, respectively. The pre-grazing height and leaf mass of dwarf elephant grass and forage peanut were 94 cm and 2782 kg DM/ha and 15 cm and 1751 kg DM/ha, respectively. The herbage intake (mean = 2.7 ± 0.06% LW) and average daily weight gain (mean = 1.16 ± 0.31 kg/day) were similar for both treatments. However, animals with 2-h access to the legume paddock grazed for 71% of the time, whereas those with 6-h access grazed for 48% of the time. The performance of the steers that were allowed to graze forage peanut pasture for 2 h is similar to that of those that were allowed to graze the legume pasture for 6 h. Index terms:Arachis pintoi, average daily gain, beef cattle, Pennisetum purpureum Schum. RESUMOPeríodos relativamente curtos de acesso a área exclusiva de leguminosa podem se constituir numa alternativa para aumentar o desempenho de bovinos em pastos tropicais de média qualidade. Objetivou-se avaliar o consumo de forragem e o desempenho de bovinos, pastejando capim-elefante anão (Pennisetum purpureum Schum. cv. BRS Kurumi), com dois tempos de acesso à área exclusiva de amendoim forrageiro (Arachis pintoi cv. Amarillo): duas (7h às 9h) e seis horas (7h às 13h). Doze bovinos (219 ± 28,8 kg de PV) foram distribuídos, segundo um delineamento experimental inteiramente casualizado e avaliados durante três ciclos de pastejo consecutivos de janeiro a março de 2013. Os teores de proteína bruta e FDN foram 158 e 577 g/kg MS para o capim-elefante anão e 209 e 435 g/kg MS para o amendoim forrageiro, respectivamente. A altura pré-pastejo e a massa de folhas do capim-elefante anão foram, respectivamente, 94 cm e 2782 kg MS/ha, e no amendoim forrageiro 15 cm e 1751 kg MS/ha. O consumo de forragem (média = 2,7 ± 0,06% PV) e o ganho médio diário (média = 1,16 ± 0,31 kg/dia) foram semelhantes entre os tratamentos, mas 71% do tempo alocado na área de leguminosa foi utilizado para pastejo, durante o período de acesso de 2 h de acesso e 48% para o acesso de 6 horas. Bovinos, pastejando capim-elefante anão, com duas horas de acesso a pastos de amendoim forrageiro, conseguem obter o mesmo desempenho que animais com seis horas de acesso ao pasto de leguminosa. Termos para indexação:Arachis pintoi, ganho médio diário, bovinos de corte, Pennisetum purpureum Schum.

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Section: Resultssupporting

confidence: 50%

Section: Introductionmentioning

confidence: 99%

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Herbage intake and animal performance of cattle grazing dwarf elaphant grass with two access times to a forage peanut area

et al. 2014

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“…Such particularities reflect the higher LSR, number of leaves per tiller (NlT), lower plant height, and greater bulk density (GoMIDE et al, 2015). All these factors contribute to a better nutritional value and grazing efficiency by the animals (ANDRADE et al, 2016).…”

Section: Short-sized Elephant Grassmentioning

confidence: 99%

Tall and short-sized elephant grass genotypes: morphophysiological aspects cut-and-carry, and grazing management

et al. 2021

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Elephant grass (pennisetum purpureum schum.) has been grown only in cut-and-carry systems for a long time. However, interest in its grazing management has been increasing because of the selection of short-sized genotypes, which have gained new relevance since 1988 with the registration of ‘mott’ grass. in this sense, tall and short-sized genotypes present important differences in morphology, quality and productivity; although, environmental factors also exert influence on these aspects. This review aimed to approach how the elephant grass size can influence the morphophysiological characteristics, management decisions, and exploitation of this species. the morphophysiological aspects and the elephant grass sizes are important to direct their utilization in the different production systems. The research results from previous decades suggest that the particularities of the tall-sized genotypes, such as great forage accumulation, high organic reserves content, and stem elongation, favor their management in cut-and-carry systems and industrial sectors. Conversely, the short-sized elephant grass genotypes present aspects as higher leaf proportion in the harvested forage, leaf/stem ratio, and tillering. these factors facilitate their exploitation in grazing systems.

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“…In contrast, legume–grass mixtures increase the herbage yield, improve the seasonal distribution of forage, increase animal productivity and reduce the environmental impact due to the lower use of N fertilizer (Carvalho and Pires, 2008; Atienza and Rubiales, 2017; Silva et al ., 2018) and decreased greenhouse gas emissions (de Andrade et al ., 2014). Legume–grass mixture systems are characterized by different plant architectures and distinct patterns of root growth, which improve the use of water, light and nutrient resources (Costa et al ., 2010).…”

Section: Introductionmentioning

confidence: 99%

Plant and animal responses of elephant grass pasture-based systems mixed with pinto peanut

et al. 2019

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The effects of growing pinto peanut mixed with elephant grass-based pastures are still little known. The aim of the current research was to evaluate the performance of herbage yield, nutritive value of forage and animal responses to levels of pinto peanut forage mass mixed with elephant grass in low-input systems. Three grazing systems were evaluated: (i) elephant grass-based (control); (ii) pinto peanut, low-density forage yield (63 g/kg of dry matter – DM) + elephant grass; and (iii) pinto peanut, high-density dry matter forage yield (206 g/kg DM) + elephant grass. The experimental design was completely randomized with the three treatments (grazing systems) and three replicates (paddocks) in split-plot grazing cycles. Forage samples were collected to evaluate the pasture and animal responses. Leaf blades of elephant grass and the other companion grasses of pinto peanut were collected to analyse the crude protein, in vitro digestible organic matter and total digestible nutrients. The pinto peanut, high-density dry matter forage yield + elephant grass treatment was found to give the best results in terms of herbage yield, forage intake and stocking rate, as well as having higher crude protein contents for both elephant grass and the other grasses, followed by pinto peanut with low-density forage yield + elephant grass and finally elephant grass alone. Better results were found with the grass–legume system for pasture and animal responses.

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Herbage intake, methane emissions and animal performance of steers grazing dwarf elephant grass with or without access to Arachis pintoi pastures

Cited by 5 publications

References 6 publications

Herbage intake and animal performance of cattle grazing dwarf elaphant grass with two access times to a forage peanut area

Herbage intake and animal performance of cattle grazing dwarf elaphant grass with two access times to a forage peanut area

Tall and short-sized elephant grass genotypes: morphophysiological aspects cut-and-carry, and grazing management

Plant and animal responses of elephant grass pasture-based systems mixed with pinto peanut

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