Dwarf versus tall elephant grass in sheep feed: which one is the most recommended for cut-and-carry?

Silva, Jordânia Kely Barbosa da; Cunha, Márcio Vieira da; Santos, Mércia Virgínia Ferreira dos; Magalhães, André Luíz Rodrigues; Mello, Alexandre Carneiro Leão de; Silva, José Ricardo Coelho da; Souza, Clóves Isaack da Rocha; Carvalho, Adriana Lima de; Souza, Evaristo Jorge Oliveira de

doi:10.1007/s11250-020-02508-y

Cited by 7 publications

(8 citation statements)

References 51 publications

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“…Thus, using forage grasses with greater potential for forage accumulation, such as elephantgrass, can help to increase the efficiency of forage-based livestock systems. Additionally, during the rainy season the differences in HAR and LAR among dwarf and tall genotypes declined, indicating the potential for dwarf types with greater forage nutritive value to fill forage gaps, in line with the results found by [ 10 ] using the same genotypes in this study to feed sheep. They concluded that dwarf genotypes are recommended for cut-and-carry system, due to greater nutritive value.…”

Section: Discussionsupporting

confidence: 89%

“…Dwarf (Mott and Taiwan A-146) and tall (Elefante B and Iri 381) elephantgrasses were evaluated by [ 10 ] in a cut-and-carry system for sheep production in the humid region of Brazil and reported that the dwarf elephantgrass cultivars Mott and Taiwan A-146 2.37 showed greater nutritive value than tall Elefante B and Iri 381. Four elephantgrass genotypes (Common, Silver, Red, and Dwarf) were evaluated by [ 11 ] in the tropical humid zone of Malaysia, who observed lower forage production for dwarf (3358 kg/ha per cut), greater leaf:stem ratio (3.18), and greater nutritive value compared with the tall genotypes.…”

Section: Introductionmentioning

confidence: 99%

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Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value

Souza

Santos

Cunha

et al. 2021

Animals

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This two-year study evaluated the effect of Pennisetum purpureum genotypes under rainfed or irrigated conditions, during the dry and rainy seasons, on herbage, leaf, and stem dry matter (DM) accumulation rates, nutritive value, and carbohydrate and protein fractionation. Treatments were tall (Iri 381 and Elefante B) or dwarf (Mott and Taiwan A-146 2.37) genotypes under rainfed or irrigated conditions. Taiwan A-146 2.37 (146 kg DM ha per day) showed similar herbage accumulation rate (HAR) to tall genotypes during the rainy season (124 and 150 kg DM/ha per day, respectively). Dwarf genotypes showed differences in leaf accumulation rate (LAR) (66 and 49 kg DM/ha per day). Mott leaf had less neutral detergent fiber (NDF) (589 g/kg DM) than Taiwan A-146 2.37 (598 g/kg DM), and tall genotypes had generally greater NDF (668 g/kg DM) than the dwarf genotypes. Irrigation increased fiber deposition in the leaf. Stems of all genotypes had lower in vitro digestible dry matter (IVDDM) (378 g/kg DM) under rainfed conditions in the rainy season. Leaf from irrigated plots had 23% more carbohydrate C fraction (160 g/kg CHO) than those from rainfed plots (122 g/kg CHO). Dwarf genotypes had generally greater nutritive value than tall genotypes. These genotypes show promise under irrigation to fill forage gaps during dry periods.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value

Souza

Santos

Cunha

et al. 2021

Animals

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“…Dwarf genotypes present morphological traits that confer lesser amounts of fibre compounds on plant cell walls than other elephant grass varieties (Williams and Hanna 1995;Gomide et al 2015;Silva et al 2021a). Nevertheless, there are morphological and nutritional differences even among dwarf grasses.…”

Section: Herbage Nutritive Value and Protein Fractionationmentioning

confidence: 99%

“…Pennisetum purpureum Schum.) in cut-and-carry systems because of its great productivity (Silva et al 2021a). Reduced land cultivation and better herbage use efficiency may be considered advantages over grazing systems.…”

Section: Introductionmentioning

confidence: 99%

Agronomic responses and herbage nutritive value of elephant grass (Cenchrus purpureus) genotypes grown as monocrops and mixed with butterfly pea (Clitoria ternatea)

Silva

Santos

Mello

et al. 2023

Crop & Pasture Science

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Context. Introducing legumes into grass-based forage systems may increase herbage nutritive value while reducing the need for inorganic nitrogen fertilisation. Grass–legume intercrops may also enhance herbage yield stability.Aim. We evaluated agronomic and nutritional traits of elephant grass (Cenchrus purpureus Schum.) genotypes grown as monocrops and mixed with butterfly pea (Clitoria ternatea L.).Methods. Elephant grass genotypes, two tall (Elephant B and IRI-381) and two dwarf (Mott and Taiwan A-146 2.37), were grown as monocultures or intercropped with butterfly pea in a 2-year trial. Herbage accumulation, yield stability, botanical composition and chemical/bromatological variables were evaluated.Key results. Herbage accumulation was highest (P < 0.001) in Elephant B under monocropping (21.9 t/ha.year); however, this treatment revealed the lowest yield stability over harvest times (σi2 5.59). All intercrops were more stable than grass monocrops (mean σi2 0.66 vs 2.55). Higher (P < 0.001) concentrations of herbage crude protein were found in intercrops than monocrops (mean 113 vs 90 g/kg). Intercrop herbage lignin contents (mean 57 g/kg) and protein fraction C (mean 61 g/kg) were higher than those in monocrops. Dwarf Mott had higher (P = 0.001) digestible dry matter concentration than dwarf Taiwan (755 vs 745 g/kg).Conclusions. Dwarf Mott genotype has outstanding nutritive value because of its higher leaf:stem ratio. Butterfly pea legume added to elephant grass crop in cut-and-carry systems improves herbage yield stability by reducing seasonal effects.Implications. Intercropping butterfly pea in grass-based systems enhances yield stability, allowing herbage harvest with good nutritive value.

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“…The frequency of 60 days for harvesting elephant grass has been reported as ideal, primarily because of its favourable morphological and structural aspects for better nutritional value (Lounglawan et al, 2014; Carvalho et al, 2018; Viana et al, 2018). However, variations may occur between genotypes (Silva, da Cunha, et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of harvest frequency and season on morphogenic and structural characteristics of dwarf and tall Elephantgrass genotypes

Alencar,

Santos,

da Cunha

et al. 2023

Grass and Forage Science

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This study aimed to evaluate the impact of two harvest frequencies (60 and 90 days) on the morphogenic and structural characteristics of four Elephantgrass genotypes (two tall and two dwarf) in both rainy and dry seasons. The research was conducted in Garanhuns, Brazil from September 2019 to December 2021. The morphogenic characteristics evaluated included leaf appearance rate, stem and leaf elongation rate, phyllochron, plant height, stem diameter, leaf and stem length, basal tiller population density, and number of leaves per tiller. The results showed that Elephant B had the highest leaf elongation rate among all genotypes, both in the rainy and dry seasons. During the rainy season, the tall genotypes showed higher stem elongation rates compared to the dwarf genotypes. The tall genotypes also had lower phyllochron values. Taiwan A‐146 2.37 had a higher population density of basal tillers by 30%–37% compared to other genotypes. During the dry season, the stem elongation rate of Taiwan A‐146 2.37 was slower compared to the rainy season. The study showed that the harvest frequency had an effect on the morphogenic characteristics of Elephantgrass genotypes, with 60 days harvest resulting in higher leaf elongation rates. Elephant B was superior in terms of leaf elongation at both harvest frequencies. The results indicate that the season also plays a role in the morphogenic characteristics of the genotypes. This study provides insights into the optimal cutting strategies for Elephantgrass based on the size of the plant and season.

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Dwarf versus tall elephant grass in sheep feed: which one is the most recommended for cut-and-carry?

Cited by 7 publications

References 51 publications

Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value

Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value

Agronomic responses and herbage nutritive value of elephant grass (Cenchrus purpureus) genotypes grown as monocrops and mixed with butterfly pea (Clitoria ternatea)

Effect of harvest frequency and season on morphogenic and structural characteristics of dwarf and tall Elephantgrass genotypes

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