Anti-methanogenic advantage of biserrula (Biserrula pelecinus) over subterranean clover (Trifolium subterraneum) from in vitro fermentation is maintained across growth stages and cutting treatments

Bidhyut Kumar Banik, Zoey Durmic, William Erskine, Clinton Revell

Research output: Contribution to journalArticle

Abstract

The annual forage legume biserrula (Biserrula pelecinus L.) offers a promising opportunity as a lowmethanogenic, bioactive pasture for southern Australian grazing systems where subterranean clover (Trifolium subterraneum L.) is the dominant annual pasture legume. This in vitro study to assess methanogenic potential examined how growth stage and cutting of biserrula affect biomass, nutritive value and fermentative parameters including methanogenic potential compared with subterranean clover. Both species were grown in a glasshouse, where three growth-stage treatments comprised plant collection at vegetative, reproductive or maturity growth stages. Three cutting (simulated grazing) treatments included cutting at the vegetative or reproductive stage and an uncut control, with herbage collection at maturity. Methane production in biserrula was unaffected by the stage of growth. Other nutritive value and fermentative parameters varied significantly with growth stage, the highest fibre content and lowest crude protein (CP) being found at maturity. Regrowth from herbage cut at the reproductive stage had higher CP and lower biomass than other cut treatments. In biserrula, this regrowth also showed the highest fermentability of the three cutting treatments including elevated methane yield. Notwithstanding these treatment effects on fermentability, biserrula maintained its strong antimethanogenic advantage over subterranean clover across all treatments, confirming its potential as an anti-methanogenic bioactive pasture.

Original languageEnglish
Pages (from-to)263-272
Number of pages10
JournalCrop & Pasture Science
Volume70
Issue number3
DOIs
Publication statusPublished - 2019

Cite this

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title = "Anti-methanogenic advantage of biserrula (Biserrula pelecinus) over subterranean clover (Trifolium subterraneum) from in vitro fermentation is maintained across growth stages and cutting treatments",
abstract = "The annual forage legume biserrula (Biserrula pelecinus L.) offers a promising opportunity as a lowmethanogenic, bioactive pasture for southern Australian grazing systems where subterranean clover (Trifolium subterraneum L.) is the dominant annual pasture legume. This in vitro study to assess methanogenic potential examined how growth stage and cutting of biserrula affect biomass, nutritive value and fermentative parameters including methanogenic potential compared with subterranean clover. Both species were grown in a glasshouse, where three growth-stage treatments comprised plant collection at vegetative, reproductive or maturity growth stages. Three cutting (simulated grazing) treatments included cutting at the vegetative or reproductive stage and an uncut control, with herbage collection at maturity. Methane production in biserrula was unaffected by the stage of growth. Other nutritive value and fermentative parameters varied significantly with growth stage, the highest fibre content and lowest crude protein (CP) being found at maturity. Regrowth from herbage cut at the reproductive stage had higher CP and lower biomass than other cut treatments. In biserrula, this regrowth also showed the highest fermentability of the three cutting treatments including elevated methane yield. Notwithstanding these treatment effects on fermentability, biserrula maintained its strong antimethanogenic advantage over subterranean clover across all treatments, confirming its potential as an anti-methanogenic bioactive pasture.",
keywords = "defoliation, in vitro fermentability, NUTRITIVE-VALUE, METHANE PRODUCTION, PASTURE LEGUMES, DAIRY-COWS, CHEMICAL-COMPOSITION, PERENNIAL RYEGRASS, PROTEIN, FORAGE, AUSTRALIA, MATURITY",
author = "Banik, {Bidhyut Kumar} and Zoey Durmic and William Erskine and Clinton Revell",
year = "2019",
doi = "10.1071/CP18069",
language = "English",
volume = "70",
pages = "263--272",
journal = "Crop & Pasture Science",
issn = "1836-0947",
publisher = "CSIRO Publishing",
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TY - JOUR

T1 - Anti-methanogenic advantage of biserrula (Biserrula pelecinus) over subterranean clover (Trifolium subterraneum) from in vitro fermentation is maintained across growth stages and cutting treatments

AU - Banik, Bidhyut Kumar

AU - Durmic, Zoey

AU - Erskine, William

AU - Revell, Clinton

PY - 2019

Y1 - 2019

N2 - The annual forage legume biserrula (Biserrula pelecinus L.) offers a promising opportunity as a lowmethanogenic, bioactive pasture for southern Australian grazing systems where subterranean clover (Trifolium subterraneum L.) is the dominant annual pasture legume. This in vitro study to assess methanogenic potential examined how growth stage and cutting of biserrula affect biomass, nutritive value and fermentative parameters including methanogenic potential compared with subterranean clover. Both species were grown in a glasshouse, where three growth-stage treatments comprised plant collection at vegetative, reproductive or maturity growth stages. Three cutting (simulated grazing) treatments included cutting at the vegetative or reproductive stage and an uncut control, with herbage collection at maturity. Methane production in biserrula was unaffected by the stage of growth. Other nutritive value and fermentative parameters varied significantly with growth stage, the highest fibre content and lowest crude protein (CP) being found at maturity. Regrowth from herbage cut at the reproductive stage had higher CP and lower biomass than other cut treatments. In biserrula, this regrowth also showed the highest fermentability of the three cutting treatments including elevated methane yield. Notwithstanding these treatment effects on fermentability, biserrula maintained its strong antimethanogenic advantage over subterranean clover across all treatments, confirming its potential as an anti-methanogenic bioactive pasture.

AB - The annual forage legume biserrula (Biserrula pelecinus L.) offers a promising opportunity as a lowmethanogenic, bioactive pasture for southern Australian grazing systems where subterranean clover (Trifolium subterraneum L.) is the dominant annual pasture legume. This in vitro study to assess methanogenic potential examined how growth stage and cutting of biserrula affect biomass, nutritive value and fermentative parameters including methanogenic potential compared with subterranean clover. Both species were grown in a glasshouse, where three growth-stage treatments comprised plant collection at vegetative, reproductive or maturity growth stages. Three cutting (simulated grazing) treatments included cutting at the vegetative or reproductive stage and an uncut control, with herbage collection at maturity. Methane production in biserrula was unaffected by the stage of growth. Other nutritive value and fermentative parameters varied significantly with growth stage, the highest fibre content and lowest crude protein (CP) being found at maturity. Regrowth from herbage cut at the reproductive stage had higher CP and lower biomass than other cut treatments. In biserrula, this regrowth also showed the highest fermentability of the three cutting treatments including elevated methane yield. Notwithstanding these treatment effects on fermentability, biserrula maintained its strong antimethanogenic advantage over subterranean clover across all treatments, confirming its potential as an anti-methanogenic bioactive pasture.

KW - defoliation

KW - in vitro fermentability

KW - NUTRITIVE-VALUE

KW - METHANE PRODUCTION

KW - PASTURE LEGUMES

KW - DAIRY-COWS

KW - CHEMICAL-COMPOSITION

KW - PERENNIAL RYEGRASS

KW - PROTEIN

KW - FORAGE

KW - AUSTRALIA

KW - MATURITY

U2 - 10.1071/CP18069

DO - 10.1071/CP18069

M3 - Article

VL - 70

SP - 263

EP - 272

JO - Crop & Pasture Science

JF - Crop & Pasture Science

SN - 1836-0947

IS - 3

ER -