A route to decreasing N pollution from livestock: Use of <i>Festulolium</i> hybrids improves efficiency of N flows in rumen simulation fermenters

Kamau, S.; Belanche, Alejandro; Davies, T. G. E.; Stevens, Pauline Rees; Humphreys, Martin; Kingston‐Smith, Alison H.

doi:10.1002/fes3.209

Cited by 8 publications

(18 citation statements)

References 61 publications

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“…glaucescens (4x) with good overall agronomic performance has also demonstrated valuable ecosystem services (Humphreys et al 2014). The cultivar has demonstrated its potential to support efficient ruminant nutrition and for combating soil compaction (Humphreys et al 2014, Kamau et al 2020, Muhandiram et al 2020.…”

Section: Breeding Of Festulolium Cultivarsmentioning

confidence: 99%

“…Festulolium cv. AberAtlas has been included onto the 2020 UK National List and globally is the first L. perenne × F. mairei amphiploid cultivar (Humphreys et al 2014, Kamau et al 2020. Casler et al (2001), in the USA, developed cv.…”

Section: Breeding Of Festulolium Cultivarsmentioning

confidence: 99%

“…However, the benefits of Festulolium are not restricted solely to the below ground properties, and, compared to ryegrass, include improved efficiencies in ruminant nutrition through better protein provision for livestock. An increase in the protein-use-efficiency by ruminants should result in reduced nitrogenous wastes and greenhouse gas emissions that are frequently associated with livestock agriculture (Humphreys et al 2014, Kamau et al 2020. There is growing evidence that Festulolium cultivars may provide some additional ecosystem services via their positive impacts on ruminant nutrition.…”

Section: Festulolium For Ecosystem Servicesmentioning

confidence: 99%

“…Livestock agriculture is increasingly criticised for its negative impacts on the environment, and in particular, for the associated releases of nitrous wastes and greenhouse gasses: ammonia, nitrous oxide and methane, a consequence of inefficient plant protein use by ruminants. This is largely due to plant-mediated proteolysis of fodder when ingested by ruminants and is catalysed by both microbial, but initially, endogenous plant proteases (Kamau et al 2020).…”

Section: Festulolium For Ecosystem Servicesmentioning

confidence: 99%

“…While many of the ecosystem services likely to benefit from cultivation of Festulolium relate to their root/soil interactions, others emanate from their foliar properties and their interactions as feed for livestock. There is growing evidence that certain novel Festulolium hybrids are capable of delivering better efficiencies in protein use by ruminants than currently provided by existing grass cultivars (e.g., Humphreys et al 2014b, Kamau et al 2020.…”

Section: Introductionmentioning

confidence: 99%

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Festulolium, a century of research and breeding and its increased relevance in meeting the requirements for multifunctional grassland agriculture

Humphreys¹,

Zwierzykowski²

2020

Biol. plant.

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Festulolium are grasses formed through interspecific hybridisation of ryegrass (Lolium) and fescue (Festuca) species. The Lolium-Festuca genome complex represents a vast array of heterogeneous and largely outbreeding grass species that have evolved, diverged, and adapted, allowing their worldwide colonisation of temperate grasslands. While strategies for grass improvement have focused primarily on intraspecific breeding and, in particular, on the agronomically desirable species Lolium perenne and Lolium multiflorum, a growing interest has emerged in interspecific hybrids as alternatives. The principal driver has been the increased appreciation of the capability of wide hybridisation to extend phenotypic variation beyond the ranges available within a single species. Lolium and Festuca species share complementary and desirable traits, and the prime aim in Festulolium (Festuca × Lolium) cultivar development has been to combine the agronomic performance of Lolium and the stress resistance of Festuca species. Advances in Festulolium development are timely, and support strategies aimed at delivering a more sustainable future for livestock agriculture, with grass cultivars that are persistent and productive. Festulolium hybrids occur naturally, including examples that demonstrate extreme heterosis with adaptations sufficient to sustain growth in harsh conditions. However, they are largely sterile and their perpetuity depends mainly on vegetative propagation. Synthetic Festulolium hybrids suitable for plant breeding require genome stability and fertility, sufficient for a cost-effective seed production. To this end, suitable amphiploid and introgressionbreeding approaches have been developed. Herein, we provide detailed selected highlights in the research and breeding of Festulolium. In addition, recognising the multifunctional properties of grasslands and the development of enabling technologies that permit their study, we review additional benefits likely to accrue from Festulolium that may mitigate climate change effects and provide valuable ecosystem services.

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Section: Breeding Of Festulolium Cultivarsmentioning

confidence: 99%

Section: Breeding Of Festulolium Cultivarsmentioning

confidence: 99%

Section: Festulolium For Ecosystem Servicesmentioning

confidence: 99%

Section: Festulolium For Ecosystem Servicesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Festulolium, a century of research and breeding and its increased relevance in meeting the requirements for multifunctional grassland agriculture

Humphreys¹,

Zwierzykowski²

2020

Biol. plant.

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Designing agricultural grasses to help mitigate proteolysis during ensiling to optimize protein feed provisions for livestock

Muhandiram

Humphreys

Fychan

et al. 2023

Food and Energy Security

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The efficient preservation of protein in silage for livestock feed is dependent on the rate and extent of proteolysis. Previous research on fresh forage indicated enhanced protein stability in certain Festulolium (ryegrass × fescue hybrids) cultivars compared to ryegrass. This is the first report of an experiment to test the hypothesis that a Lolium perenne × Festuca arundinacea var glaucescens cultivar had reduced proteolysis compared to perennial ryegrass (L. perenne) during the ensiling process. Forages were harvested in May (Cut 2) and August (Cut 4), wilted for 24 h and ensiled in laboratory-scale silos. Silage was destructively sampled at 0 h, 9 h, 24 h, 48 h, 72 h, 14 days and 90 days post-ensiling, and dry matter (DM), pH and chemical composition were determined. At Cut 2, there was no difference in crude protein between treatments but ryegrass had higher soluble nitrogen (SN) (P < 0.001) and grass × time interactions (p = 0.03) indicated higher rates of proteolysis. By Cut 4, Festulolium had (5.5% units) higher CP than ryegrass (p < 0.001) but SN did not differ. Ammonia-N did not differ between silages in either cut. DM differences (11.8% units) between treatments in Cut 4 (v.2.2% in Cut 2) may have masked effects on proteolysis, highlighting the importance of management on silage quality. This was despite higher WSC in ryegrass in both cuts (p < 0.001), with grass × time interactions (Cut 2; p = 0.03) showing slower WSC decline in ryegrass in Cut 4 (p < 0.001). Silage pH values did not differ between grasses in either cut, but grass × time interactions (p < 0.001) showed a slower decline in both ryegrass cuts, resulting in higher (p < 0.05) pH at 24 h and 72 h for Cuts 2 and 4, respectively.Overall, the hypothesis for an enhanced protein stability in Festulolium when ensiled as ruminant feed was evidenced by lower SN but not ammonia-N in an earlycut silage with a comparable DM to ryegrass.

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Matching Feed Characteristics to Animal Requirements Through Plant Breeding

Skøt

Marley

Lloyd

et al. 2023

Smart Animal Production

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A route to decreasing N pollution from livestock: Use of Festulolium hybrids improves efficiency of N flows in rumen simulation fermenters

Cited by 8 publications

References 61 publications

Festulolium, a century of research and breeding and its increased relevance in meeting the requirements for multifunctional grassland agriculture

Festulolium, a century of research and breeding and its increased relevance in meeting the requirements for multifunctional grassland agriculture

Designing agricultural grasses to help mitigate proteolysis during ensiling to optimize protein feed provisions for livestock

Matching Feed Characteristics to Animal Requirements Through Plant Breeding

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