&lt;b&gt;Sward structure, light interception and herbage accumulation in forage peanut cv. Belmonte subjected to strategies of intermittent grazing management

Brunetti, Henrique Bauab; Carvalho, Lucas da Rocha; Chiavegato, M. B.; Silva, Sila Carneiro da

doi:10.4025/actascianimsci.v38i4.32207

Cited by 4 publications

(4 citation statements)

References 20 publications

(22 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Forage peanut growing in full sunlight has a regrowth pattern similar to those of tropical grasses and shows a strong correlation among 95% of canopy light interception, maximum forage accumulation, and increased animal performance (Brunetti et al, 2016;Kröning et al, 2019). However, this grazing management under shade should be better understood, since grazing management and shading directly affect the structural, physiological, and productive characteristics of tropical forage legume (Baligar et al, 2010;Guenni et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Morphogenetic, physiological, and productive of forage peanut responses to shading

Cruz

Santos

Silva

et al. 2020

Pesq. agropec. bras.

View full text Add to dashboard Cite

The objective of this work was to evaluate the morphogenetic, structural, physiological, and productive traits of forage peanut (Arachis pintoi) subjected to different levels of artificial shading in the field. The 'Amarillo MG-100' forage peanut was planted in April 2015, and the evaluations were carried out from May 2017 to April 2018. The treatments were: 0, 30, 45, and 75% of artificial shading. There was no significant effect of shading on the morphogenetic traits of forage peanut. Shading increased final leaf length and canopy height and decreased the leaf area index and number of stolons. Photosynthesis, transpiration rate, stomatal conductance, chlorophyll b, and leaf temperature increased quadratically as a function of shading. There was a linear positive effect on the growing cycle length and a quadratic effect on the production of dry matter mass, with the maximum at 30% shade. Forage peanut harvested at 95% light interception (11-cm height) shows adaptation to shading up to 45%, with increased leaf size, canopy height, photosynthetic rate, stomatal conductance, transpiration rate, and chlorophyll b. In addition, plants at 30% shading show a higher yield than those growing under full sun.

show abstract

Section: Introductionmentioning

confidence: 99%

Morphogenetic, physiological, and productive of forage peanut responses to shading

Cruz

Santos

Silva

et al. 2020

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Descriptive analysis to characterize the forage canopy, the data of height, forage mass (leaf lamina, pseudostem, and dead material), the population density of tillers, and stocking rate was grouped into means and percentages. According to the recommendation of Brunetti et al (2016), the inclined point data were transformed into percentages and plotted into figures.…”

Section: Discussionmentioning

confidence: 99%

“…In the pre-grazing, the spatial distribution of cultivars and their respective botanical components were quantified along with the vertical profile of the forage canopy. An average of 300 observations was performed in each grazing intensity, by the inclined point quadrat method (Brunetti et al, 2016). The device was allocated in points that represented the average canopy height at the time of sampling.…”

Section: Height and Horizontal Distribution Of Intercropping Grassesmentioning

confidence: 99%

Defoliation Dynamics on Grazing Horizons in Pastures Intercropped by Panicum maximum, Brachiaria brizantha, and Brachiaria decumbens

Fernandes

Barbosa

Morais

et al. 2020

Trop. Anim. Sci. J.

View full text Add to dashboard Cite

The aim of this study was to quantify and verify the defoliation dynamics process of the Panicum maximum, Brachiaria brizantha, and Brachiaria decumbens intercropping during the formation of four grazing horizons in lenient grazing intensities and high grazing intensity. Pastures were managed in a pregrazing height of 70 cm, and as post-grazing height, the criteria of 40% and 60% were used in relation to the pre-grazing height. The experimental design used was a completely randomized design with a 3x4 factorial arrangement. The first factor was the cultivars of intercropped grasses consisted of 3 cultivars, i.e., BRS Zuri, Xaraés, and Basilisk. The second factor was grazing horizons consisted of 4 levels, i.e., I: one; II: two; III: three; IV: four. In the intercropping managed with 40% of the forage canopy height removal, oscillations were observed in the severity of defoliation of the extended tiller among the intercropped species, in which the tiller reduction of the 'Basilisk' was 32% lower in relation to 'BRS Zuri'. In the intercropping managed with 60% of the forage canopy height removal intensity, disproportionality was observed among the grasses, because the 'Basilisk' suffered a higher severity and frequency of pseudostem defoliation. In intercropped pastures managed under grazing intensities of 40%, as the animal explores the grazing horizons, the vertical distribution of the pseudostem could modify the shape and positioning of the depth of the bite, leading the animal to perform less selective grazing among the species. Due to the higher supply of pseudostem mass at the intensity of 60%, it was possible to infer that there was a reduction in forage intake.

show abstract

“…The literature reports that today it is possible to obtain from 12 to 14 kg/cow/d of milk on elephant grass pastures fertilized with 200 kg/ha/yr of nitrogen during the rainy season when managed under rotational stocking, with a 30-day defoliation interval (DANES et al, 2013). However, due to the reasonable cost of the pasture dry matter, this milk yield level should be maximized by the use of developed techniques for pasture management such as light interception and post-grazing residual heights, as shown in the studies (BRUNETTI et al, 2016;CARVALHO et al, 2017;LEE;DONAGHY;ROCHE, 2008;).…”

Section: Introductionmentioning

confidence: 99%

Milk production of crossbred holstein × zebu on different pasture-management strategies

Baffa¹,

Fernandes²,

Oliveira³

et al. 2020

Biosci. J.

View full text Add to dashboard Cite

The objective of this study was to evaluate nutrient intake and digestibility, yield and components of milk from Holstein × Zebu cows on Tanzania grass pastures using a fixed-rest period or 95% light interception. The treatments consisted of evaluations of two Tanzania-grass pasture-management strategies: LI95 - when the pasture reached 95% light interception (LI), with 3 paddock-occupation days; and FR - the pasture was managed with a 30-days defoliation interval (DI) and 3 paddock-occupation days. Ten recently calved cows per treatment in year 1 and eight cows per treatment in year 2 were used, i.e. five cows per replicate in year 2 and four cows per replicate in year 2. Intake and digestibility of pasture nutrients, milk yield and milk composition were evaluated. The management strategies imposed on the Tanzania-grass pasture did not affect nutrient intake or digestibility. Milk yield and milk components were not affected by the management strategies, but milk yield per area unit was affected by the use of 95% light interception. The management strategy applying 95% light interception implies greater efficiency in the use of area, which translates to a higher milk yield per unit area, and thus it can be recommended to increase milk yield per area.

show abstract

<b>Sward structure, light interception and herbage accumulation in forage peanut cv. Belmonte subjected to strategies of intermittent grazing management

Cited by 4 publications

References 20 publications

Morphogenetic, physiological, and productive of forage peanut responses to shading

Morphogenetic, physiological, and productive of forage peanut responses to shading

Defoliation Dynamics on Grazing Horizons in Pastures Intercropped by Panicum maximum, Brachiaria brizantha, and Brachiaria decumbens

Milk production of crossbred holstein × zebu on different pasture-management strategies

Contact Info

Product

Resources

About