Rotational stocking management affects the structural and nutritional characteristics of Guinea grass swards and milk productivity by crossbred dairy cows

Lima, Mara Lúcia Pereira; Simili, Flávia Fernanda; Giacomini, Alessandra Aparecida; Roma-Junior, Luis Carlos; Ribeiro, Enílson Geraldo; Paz, Cláudia Cristina Paro de

doi:10.1016/j.anifeedsci.2013.10.002

Cited by 4 publications

(8 citation statements)

References 14 publications

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“…Pasture height and light interception can be used as management tools in tropical forages (Euclides, Euclides Filho, Montagner, Figueiredo, & Lopes, 2014;Difante et al, 2010), as they allow the herbage to be harvested in the same physiological condition according to variations in accumulation rate (Lima et al, 2013). However, during the establishment phase (90 days), none of the cultivars reached 95% light interception at the heights described in the literature: 25 cm for cvs Marandu and Piatã (Trindade et al, 2007;Gobbi, Lugão, Bett, Abrahão, & Tacaiama, 2018), 30 cm for cv.…”

Section: Morphogenetic and Structural Variablesmentioning

confidence: 99%

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Rodrigues

Difante

Gurgel

et al. 2020

Acta Sci. Anim. Sci.

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This study aimed was the establishment of the genus Brachiaria in the Brazilian semi-arid region. The experiment was conducted from April to June 2016, as a randomized-block experimental design with five treatments and four replicates. Treatments were represented by five Brachiaria cultivars, namely, Marandu, Paiaguás, Piatã, Xaraés and Basilisk. Morphogenetic (leaf appearance rate, leaf elongation rate e stem elongation rate) and structural characteristics (final leaf length, tiller population density e number of leaves per tiller, forage mass, leaf blade mass, stem mass, senescent material mass and leaf:stem ratio) of the forage cultivars were evaluated. Canopy height fitted a linear regression model (P<0,05), with estimated daily increases of 0.50, 0.53, 0.53, 0.54 and 0.56 cm for cvs Basilisk, Marandu, Paiaguás, Piatã and Xaraés, respectively. The number of live leaves in cvs Basilisk and Paiaguás increased linearly (p < 0.05), by 4.3 and 2.8 leaves per tiller, respectively, during the 60-day period. The recommended height at which the growth of Brachiaria cultivars should be interrupted is upon reaching 25 to 35 cm. In the soil-climatic conditions of the Brazilian semi-arid region, the Brachiaria cultivars Basilisk, Marandu, Paiaguás, Piatã and Xaraés are established at 75 days after sowing, which is the recommended time for performing the first harvest or lenient grazing to stimulate tillering.

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Section: Morphogenetic and Structural Variablesmentioning

confidence: 99%

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Rodrigues

Difante

Gurgel

et al. 2020

Acta Sci. Anim. Sci.

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“…According to Pedreira et al (2007), this criterion is highly correlated with sward light interception, allowing herbage to be harvested in the same physiological condition according to variations in its accumulation (Lima et al, 2013). In addition, sward height is an easy and practical tool to guide grazing management in tropical forage grasses (Difante et al, 2010;Euclides et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…fixed and pre-determined number of days is common (Lima et al, 2013). However, the growth potential of grasses is dependent on climatic conditions, such as temperature, photoperiod and rainfall, resulting in growth rate oscillations between and within seasons.…”

Section: Introductionmentioning

confidence: 99%

“…However, the growth potential of grasses is dependent on climatic conditions, such as temperature, photoperiod and rainfall, resulting in growth rate oscillations between and within seasons. In this way, adoption of this grazing control method has resulted in a wide variation in sward structure attributes, such as forage and leaf mass, leaf area index and sward height, which affect the pattern of forage intake and animal performance (Pedreira et al, 2009;Lima et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Sward Structure and Herbage Accumulation of Massai Guineagrass Pastures Managed According to Pre-Grazing Heights, in the Northeast of Brazil

Neto¹,

Difante²,

Lana³

et al. 2017

JAS

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The forage sward height measurement is a practical and potential tool for grazing management. Thus, the objective of this study was to evaluate the structure of pasture and forage accumulation related to sward pre-grazing height of Panicum maximum cv. Massai, before being grazed by sheep. The study was conducted in the Federal University of Rio Grande do Norte, Macaíba, Brazil. The treatments were the pre-grazing sward heights at: 35, 40, 45 and 50 cm. The post-grazing height was 15 cm for all treatments. The interaction between the pre-grazing sward heights and grazing cycles was only statistically significant for light interception (LI) and leaf area index (LAI). The LI had linear and positive effect to the pre-grazing heights in only one of three grazing cycles, with approximately 1% increase in LI for each centimeter grown in the sward. The total forage mass had linear regression, every centimeter increased in height, there was a correspondent dry matter (DM) increase of 187 kg ha -1 in forage mass. There was a linear response between leaf blade mass and dead material with sward height. The post-grazing lowest LI was 29.42% at 42.05 cm high. The lowest amount of LI was 29.42% at 42.05 cm high. The minimum LAI was 0.69. The top DM and mineral matter (MM) accumulation rate were linear and had 58.32 and 20.46 kg ha -1 day -1 MS, respectively. Massai guineagrass grazed by sheep must be handled between 35 and 40 cm high at pre-grazing when associated with post-grazing height of 15 cm.

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“…Entretanto, as condições climáticas no período das águas aceleram o crescimento das gramíneas que alcançam ponto ótimo de quantidade e qualidade quando atinge uma determinada altura de entrada recomendada para pastejo. O sistema de lotação intermitente, quando bem conduzido, mantendo como meta de manejo a interceptação luminosa ótima, proporciona o repouso do pasto, respeita a rebrota sem degradá-lo e disponibiliza forragem de boa qualidade para os animais (1) .…”

Section: Introductionunclassified

Efeito do manejo do pastejo e suplementação nitrogenada sobre a produção de leite a pasto

et al. 2022

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Resumo Objetivou-se avaliar os efeitos dos manejos do pastejo ponta e repasse combinados a substituição parcial da proteína do suplemento por nitrogênio ureico sobre o consumo e digestibilidade dos nutrientes, composição do leite e balanço de nitrogênio de vacas primíparas da raça Girolanda. As vacas foram alocadas em dois quadrados latinos 4 x 4 compostos de quatro animais cada e quatro tratamentos em um esquema fatorial 2 x 2. Os suplementos foram formulados para um consumo de 0,6% do peso corporal: sem utilização de nitrogênio ureico; ou com 21% de nitrogênio ureico em sua composição. O manejo do pastejo de ponta melhorou o consumo e a digestibilidade dos nutrientes. O suplemento contendo ureia excretou 47% a mais de N urina (g/dia) em comparação ao suplemento sem ureia. A combinação entre o suplemento sem ureia e o manejo de pastejo ponta apresentou maior ingestão e retenção de nitrogênio e maior N retido (%N digerido). A combinação entre o suplemento contendo 21% de nitrogênio ureico e o pastejo de ponta pode ser utilizada sem prejuízos aos parâmetros nutricionais e produtivos das vacas.

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Rotational stocking management affects the structural and nutritional characteristics of Guinea grass swards and milk productivity by crossbred dairy cows

Cited by 4 publications

References 14 publications

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Sward Structure and Herbage Accumulation of Massai Guineagrass Pastures Managed According to Pre-Grazing Heights, in the Northeast of Brazil

Efeito do manejo do pastejo e suplementação nitrogenada sobre a produção de leite a pasto

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