Comparison of perennial ryegrass,<i>Lolium perenne</i>L., ploidy and white clover,<i>Trifolium repens</i>L., inclusion for herbage production, utilization and nutritive value

Guy, C.; Hennessy, Deirdre; Gilliland, T. J.; Coughlan, F.; McClearn, B.; Dineen, Michael; McCarthy, B.

doi:10.1111/gfs.12366

Cited by 21 publications

(18 citation statements)

References 58 publications

(96 reference statements)

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“…The incorporation of clover into a grass sward can increase the digestion of the soluble fraction or the most digestible components of the diet (e.g., [ 50 ]). A full system dairy cow grazing experiment by Guy et al [ 28 ] found increases in forage OMD when clover was included in the grass sward, similar to this study. Adding clover maintained greater in vivo OMD and DMD concentrations in summer and autumn compared to the grass-only sward in this study.…”

Section: Discussionsupporting

confidence: 86%

“…The increased forage quality of the grass-clover sward in autumn resulted in forage that was similar in chemical composition to that of the spring grass-only. This is an important consequence of including clover in grass swards as the quality of grass can decline in autumn, negatively impacting animal performance [ 26 , 28 , 41 ].…”

Section: Discussionmentioning

confidence: 99%

“…White clover growth peaks in late summer creating a complementary feed supply to the maturing grass and maintaining maximum productivity of the sward [ 27 ]. Although the seasonal effects on nutritive value are well known in grass-clover swards compared to grass-only swards [ 26 , 27 , 28 ], research assessing the total tract digestibility over a full grazing season of grass-clover forage is limited.…”

Section: Introductionmentioning

confidence: 99%

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Dry Matter Intake and In Vivo Digestibility of Grass-Only and Grass-White Clover in Individually Housed Sheep in Spring, Summer and Autumn

Hurley

Lewis²,

Beecher

et al. 2021

Animals

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Intake and digestibility are key drivers of animal production from grazed forage. The objective of this study was to compare the in vivo digestibility and voluntary dry matter (DM) intake of grass-only and grass-white clover (grass-clover) forage in individually housed sheep. This study was a Latin square design, repeated on three occasions in 2017: Spring (27 March–29 April), summer (19 June–22 July) and autumn (4 September–29 September). Grass-clover and grass-only swards were harvested daily and offered ad libitum to 6 individually housed wether sheep per treatment per period. Digestibility of DM, organic matter (OM), neutral detergent fibre (NDF) and acid detergent fibre (ADF) were determined using the total faecal collection method. Dry matter intake was not significantly different between treatments. White clover inclusion increased forage crude protein concentration in autumn (p < 0.001) and reduced NDF concentration in the offered forage (p < 0.001), increasing nitrogen intake per sheep in autumn (p < 0.001) and decreasing NDF intake per sheep in autumn (p < 0.001). Grass-clover swards had a significantly greater OM and DM digestibility compared to grass-only swards (p < 0.05). This could potentially result in increased animal production from grass-clover swards compared to grass-only swards.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dry Matter Intake and In Vivo Digestibility of Grass-Only and Grass-White Clover in Individually Housed Sheep in Spring, Summer and Autumn

Hurley

Lewis²,

Beecher

et al. 2021

Animals

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“…When legumes are sown in N‐deficit soil, competition from companion grasses is at a minimum and legumes will therefore dominate the sward (Crush, ) which may explain the higher legume content in 2015. As swards develop, soil N accumulates, and companion grasses eventually dominate (Guy et al, ; Sears, ) which occurred in this study under both defoliation methods.…”

Section: Discussionsupporting

confidence: 51%

The effect of grazing versus cutting on dry matter production of multispecies and perennial ryegrass‐only swards

Grace

Boland

Sheridan

et al. 2019

Grass and Forage Science

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Dry matter (DM) production of multispecies swards compared to perennial ryegrass (Lolium perenne; PRG) swards under intensive grazing warrants investigation as it is relatively unknown. A 5 × 2 factorial experiment, with five sward types and two defoliation methods, was used to investigate the effect of grazing versus cutting on dry matter (DM) production of multispecies and PRG‐only swards. Five sward types were established namely: a PRG‐only sward, receiving 250 kg N ha−1 year−1 (PRG250), and a PRG‐only sward (PRG90), a two‐species sward with PRG and white clover (Trifolium repens; PRGWC), a six‐species sward (6S) and a nine‐species sward (9S), each receiving 90 kg N ha−1 year−1. Cutting plots measured 1.95 × 10 m and grazing plots measured 10 × 10 m. All plots were harvested concurrently every 21–30 days from April‐November for two years (2015 and 2016). A strip from the grazing plots was cut for DM yield determination prior to turning in cattle for grazing. There was an interaction between sward type and defoliation method (p < .01), whereby there was no effect of defoliation method on the PRG‐only swards, however, the annual DM production of PRGWC, 6S and 9S swards reduced under grazing compared to cutting (p < .001; on average 1,929 kg DM/ha lower). Multispecies swards had lower DM production under grazing compared to cutting, while the DM yield of PRG‐only swards was unaffected by defoliation method.

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“…Whilst a major emphasis of early papers was on the improvement and productivity of grasslands, there has been an increased emphasis on the ecosystem services that grasslands provide across the globe (D’Ottavio et al, 2018) and the ecological and societal pressures on grassland agriculture. Therefore, we have seen papers submitted that seek to understand nitrogen responses in terms of efficiency of plant responses (Sandaña et al, 2019) and the farming system implications of the role of nitrogen on forage quality and productivity, animal production and nitrogen leaching (O’Connor et al, 2019) including a revisitation of the role of legumes in this context (Guy et al, 2018; Niderkorn et al, 2019; Woods et al, 2018).…”

Section: The Most Recent Years (2018–2019)mentioning

confidence: 99%

Editorial: Grass and Forage Science – 75 years of impact and service to the science of grasslands

Smith

Elgersma²

2020

Grass and Forage Science

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The year 2020 marks the 75th edition of Grass and Forage Science. From its beginnings as the Journal of the British Grassland Society, the journal has grown to be the major international journal with a primary emphasis on grasslands society. In this paper, to mark this anniversary we note the contributions of the editorial team, past and present, and the legacy of the journal by noting some of the highly cited papers published over the years and discuss the changing trends in science published in recent years. This includes an emphasis on the changing role of grasslands across the globe and the challenges that changing climate and altered production systems place on grazing agriculture. It is through the adoption of science that is being published now that the industries that we serve will be able to respond to these challenges.

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Comparison of perennial ryegrass,Lolium perenneL., ploidy and white clover,Trifolium repensL., inclusion for herbage production, utilization and nutritive value

Cited by 21 publications

References 58 publications

Dry Matter Intake and In Vivo Digestibility of Grass-Only and Grass-White Clover in Individually Housed Sheep in Spring, Summer and Autumn

Dry Matter Intake and In Vivo Digestibility of Grass-Only and Grass-White Clover in Individually Housed Sheep in Spring, Summer and Autumn

The effect of grazing versus cutting on dry matter production of multispecies and perennial ryegrass‐only swards

Editorial: Grass and Forage Science – 75 years of impact and service to the science of grasslands

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