Desempenho de animais alimentados com lâminas foliares, em pastagem de capim-marandu

Machado, L. A. Z.; Fabricio, A. C.; Gomes, Alberto; Assis, Paulo Giovani Gall de; Lempp, Beatriz; Maraschin, Gerzy Ernesto

doi:10.1590/s0100-204x2008001100021

Cited by 16 publications

(8 citation statements)

References 24 publications

(19 reference statements)

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“…Comparisons among all treatments showed no significant difference for WG and ADWG. The latter is related not only to forage quality but also to the chances of selecting diet under grazing conditions (MACHADO et al, 2008). Despite the better quality of forage cut at 35 and 25 cm heights, this selective behavior was affected.…”

Section: Dm Intakementioning

confidence: 99%

Short-term evaluation of Massai grass forage yield and agronomic characteristics and sheep performance under rotational grazing with different pre-grazing canopy heights

Cardoso

Sousa

Ferreira

et al. 2019

SCA

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This study aimed to evaluate the morphogenic, structural, chemical characteristics, and forage yield of Massai grass, as well as the performance of sheep under three pre-grazing canopy heights. Eighteen Dorper x crossbred sheep (12 males and 6 females) were subjected to three pre-grazing canopy heights of Massai grass (45, 35, and 25 cm). Rotational grazing was adopted, with a fixed rest period of 12 days and occupation of four days. Before placing animals in the paddock, stocking rate was estimated to ensure a reduction of about 50% in the initial height. Morphogenic and chemical characteristics of forage were evaluated, as well as animal intake and performance. Pasture managed at 25 cm height induced reductions in stem and sheath sizes, and phyllochron but an increased leaf: stem ratio. However, the pasture cut at 35 cm above ground promoted an increase in total dry mass and foliar leaf productions, in addition to greater forage availability and daily accumulation. Yet, pastures with a height of 45 cm had a higher percentage of stem and senescent material, decreasing leaf intake by animals. Among the studied heights, 35 cm is the most suitable for Massai grass, when used for rearing sheep for meat production under pasture conditions in the northern Tocantins. This is because this management provided a greater availability of good quality forage and thereby increasing weight gains per area in animals.

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Section: Dm Intakementioning

confidence: 99%

Short-term evaluation of Massai grass forage yield and agronomic characteristics and sheep performance under rotational grazing with different pre-grazing canopy heights

Cardoso

Sousa

Ferreira

et al. 2019

SCA

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“…According to Machado et al (2008), herbage allowances between 8 and 12 kg DM 100 -1 BW allow animals to intake and higher quality leaves. Barbosa et al (2006) reported that the most consistent forage allowance for the highest association between ADG, gain per hectare, and dynamics of tillering was between 7 and 11 kg DM 100 -1 BW.…”

Section: Pv Pmmentioning

confidence: 99%

Herbage allowance effects on the characteristics of Brachiaria brizantha cv. Marandu pastures and the production and economic viability of Nellore heifersicas das pastagens de Brachiaria brizantha cv. Marandu e na produção e viabilidade econômica de novilhas Nelore

Dias

Gomes

Ítavo

et al. 2016

SCA

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This study aimed to evaluate the effect of three herbage allowances (5, 10, and 15 kg dry matter [DM] 100 -1 of body weight [BW]) for Brachiaria brizantha cv. Marandu pastures in a continuous grazing system on the morphological and nutritional characteristics of forage, animal performance, and economic viability in Nellore heifers. The total experimental area was 60 ha, divided into 12 paddocks of 5 ha each, with 4 paddocks per treatment. The experimental animals were Nellore heifers (260 in total), with average BW of 301.16 ± 9.12 kg, receiving 0.4 % BW in multiple supplements. We evaluated the production, structural characteristics, and nutritional value of the forage, productive performance, carcass characteristics, and economic viability of each allowance. There were significant effects for the production, structural characteristics, and nutritional value of the forage treatment. The proportions of leaves were 42.40, 38.20, and 30.88 % and the leaf:stem ratios were 1.22, 1.03, and 0.83 for the 5, 10, and 15 kg DM 100 -1 BW herbage allowances, respectively. The average daily weight gain (mean 0.42, 0.75, and 0.63 kg daily -1 ) and stocking rate (3.35, 1.87, and 1.26 animal unit ha -1 ) had a significant effect for the 5, 10, and 15 kg DM 100 -1 BW forage allowance, respectively. The herbage allowances were evaluated as being economically viable with a profit margin of 10.37, 23.65, and 14.43 % for the 5, 10, and 15 kg DM 100 -1 BW allowances, respectively. The greatest pasture response was found in the 5 kg DM 100 -1 BW allowance and was related to better nutritional values and morphological characteristics of the pasture and greater stoking rate and weight gain per area. The herbage allowance of 10 kg DM 100 -1 BW be applied to obtain higher animal performance and better economic viability of heifers in B. brizantha cv. Marandu pastures in a continuous grazing method that are receiving protein-energy supplementation.

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“…Assim, o menor GMD dos animais que pastejaram a cv. Xaraés (Tabela 6), poderia ser atribuído à maior TL desses pastos (Tabela 7), pois, à medida que a TL aumenta, a produção por animal decresce (Almeida et al, 2002;Cândido et al, 2005;Barbosa et al, 2006;Machado et al, 2008). No entanto, não houve (p>0,05) correlação entre estas duas variáveis para a cv.…”

Section: Anounclassified

Valor nutritivo da forragem e produção animal em pastagens de Brachiaria brizantha

Euclides¹,

Macedo²,

Valle³

et al. 2009

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a produção animal e sua relação com as características dos pastos de Brachiaria brizantha cultivares Marandu, Xaraés e Piatã. O delineamento experimental foi o de blocos ao acaso, com três tratamentos e duas repetições. Os piquetes com 2 ha foram subdivididos em dois e submetidos ao pastejo alternado, com 28 dias de utilização e 28 dias de descanso. Foram utilizados três novilhos teste, por piquete, e novilhos reguladores para manter resíduos pós-pastejo em torno de 3 Mg ha -1 de matéria seca. Mensalmente, os pastos foram avaliados para se estimar o valor nutritivo da forragem. Os animais foram pesados, e as taxas de lotação foram ajustadas duas vezes por semana. No pasto da cv. Xaraés, apesar do menor ganho médio diário (GMD) dos animais, a taxa de lotação foi maior, o que resultou em maior produtividade da cv. Xaraés, em comparação às cvs. Marandu e Piatã. No pasto da cv. Piatã, houve aumento do GMD, o que indica que as cvs. Xaraés e Piatã são novas alternativas para a diversifi cação dos pastos no Cerrado. Assim, a escolha da forragem deve se dar em razão da meta do sistema de produção, ou seja, a produção por animal ou por área.Termos para indexação: Cerrado, Marandu, Piatã, Xaraés, oferta de forragem, taxa de lotação. Forage nutritive value and animal production in Brachiaria brizantha pasturesAbstract -The objectives of this work were to evaluate animal production and its relationship with pasture characteristics of Brachiaria brizantha cultivars Marandu, Xaraés and Piatã. The experiment had a randomized complete block design, with three treatments and two replicates. Two-ha paddocks were divided into two and submitted to alternated grazing, with 28 days of grazing and 28 days of rest. Three tester steers were kept in each paddock; additional steers were placed in each paddock by the put-and-take technique, to assure post-grazing residues of about 3 Mg ha -1 of dry matter. The pastures were sampled monthly to estimate the nutritive value of the forage. The animals were weighted, and the stocking rate was adjusted twice a week. Despite the lower average daily gain (ADG), in the cv. Xaraés pasture, the stocking rate was greater, which resulted in greater productivity, in comparison with cvs. Marandu and Piatã. The pasture with cv. Piatã had the highest ADG. These results indicate that cvs. Xaraés and Piatã are new alternatives for Cerrado pastures. The choice of the forage cultivar should fi t the animal and production system targets.

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Desempenho de animais alimentados com lâminas foliares, em pastagem de capim-marandu

Cited by 16 publications

References 24 publications

Short-term evaluation of Massai grass forage yield and agronomic characteristics and sheep performance under rotational grazing with different pre-grazing canopy heights

Short-term evaluation of Massai grass forage yield and agronomic characteristics and sheep performance under rotational grazing with different pre-grazing canopy heights

Herbage allowance effects on the characteristics of Brachiaria brizantha cv. Marandu pastures and the production and economic viability of Nellore heifersicas das pastagens de Brachiaria brizantha cv. Marandu e na produção e viabilidade econômica de novilhas Nelore

Valor nutritivo da forragem e produção animal em pastagens de Brachiaria brizantha

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