Effect of multispecies swards on ruminal fermentation, methane emission and potential for climate care cattle farming − an in vitro study

IF 4 2区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Animal Pub Date : 2025-01-01 DOI:10.1016/j.animal.2024.101386

M.U. Hassan , P. Sidoruk , D. Lechniak , M. Szumacher-Strabel , J. Bocianowski , S. Ślusarczyk , P.R. Hargreaves , D. Ruska , A. Dorbe , Dz. Kreismane , K. Klumpp , J. Bloor , R.M. Rees , A. Kuipers , P. Galama , Z. Váradyová , K. Čobanová , A. Cieślak

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Abstract

Greenhouse gas (GHG) emissions from livestock ruminants, particularly methane (CH₄), nitrous oxide, and indirectly ammonia (NH₃) significantly contribute to climate change and global warming. Conventional monoculture swards for cattle feeding, such as perennial ryegrass or Italian ryegrass, usually require substantial fertiliser inputs. Such management elevates soil mineral nitrogen levels, resulting in GHG emissions and potential water contamination. Mitigating the environmental footprint of these farming practices requires sustainable alternative feeding strategies for cattle production. Multispecies grassland swards (grass + legumes or legumes + herbs) represent a promising alternative to monoculture grassland swards for cattle nutrition due to their reduced nitrogen requirements, excellent herbage yield, and polyphenolic compounds (tannins, formononetin, luteolin, quercetin, and acteoside) which may have positive effects on animals. This study investigated the effects of selected multispecies grassland swards (plant blends) on in vitro ruminal fermentation and DM digestibility. Three experimental blends of plants cultivated without fertilisers were utilised: (1) perennial ryegrass (PRG) + red clover (RC), (2) chicory (C) + red clover (RC), and (3) Tonic plantain (PLA) + red clover (RC). The control blend included perennial ryegrass (PRG), and red clover (RC) cultivated with fertiliser. The in vitro trial showed a reduction in CH₄ production and ruminal NH₃ concentration (by 14.7 and 28.8%, respectively; P < 0.01) in the PLA+RC blend compared to the control. This plant blend also increased propionate concentration (P < 0.05) and reduced acetate and butyrate concentrations and the acetate-propionate ratio (P < 0.01). Additionally, the total protozoal and methanogen counts were mostly reduced by the PLA+RC blend (P < 0.01) among all blends investigated. In conclusion, the Tonic plantain and red clover blend (PLA+RC) cultivated without fertilisers have the potential to be utilised as a sustainable alternative feed source for climate-friendly cattle production, aligning with the aims of the European Climate Care Cattle Farming project.

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多品种草对瘤胃发酵、甲烷排放及气候变化潜力的影响——体外研究

家畜反刍动物的温室气体（GHG）排放，特别是甲烷（CH4）、氧化亚氮和间接氨（NH3）的排放，对气候变化和全球变暖起到了重要作用。饲养牛的传统单一作物，如多年生黑麦草或意大利黑麦草，通常需要大量的肥料投入。这种管理提高了土壤矿物氮水平，导致温室气体排放和潜在的水污染。要减轻这些耕作方式的环境足迹，就需要可持续的替代养牛战略。多品种草地草（草+豆科植物或豆科植物+草本植物）具有较低的氮需求、优异的牧草产量和对动物有益的多酚类化合物（单宁、刺芒柄花素、木犀草素、槲皮素和毛蕊花苷），是替代单一栽培草地草的理想选择。本试验研究了选择的多品种草地草（植物混合物）对体外瘤胃发酵和干物质消化率的影响。采用3种不施肥栽培植物的试验组合：(1)多年生黑麦草(PRG) +红三叶草（RC），(2)菊苣(C) +红三叶草（RC），(3)补车前草(PLA) +红三叶草（RC）。对照品种为多年生黑麦草（PRG）和施肥栽培的红三叶草（RC）。体外试验表明，CH4产量和瘤胃NH3浓度分别降低14.7%和28.8%；P

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来源期刊

Animal 农林科学-奶制品与动物科学

CiteScore

7.50

自引率

2.80%

发文量

246

审稿时长

3 months

期刊介绍： Editorial board animal attracts the best research in animal biology and animal systems from across the spectrum of the agricultural, biomedical, and environmental sciences. It is the central element in an exciting collaboration between the British Society of Animal Science (BSAS), Institut National de la Recherche Agronomique (INRA) and the European Federation of Animal Science (EAAP) and represents a merging of three scientific journals: Animal Science; Animal Research; Reproduction, Nutrition, Development. animal publishes original cutting-edge research, ''hot'' topics and horizon-scanning reviews on animal-related aspects of the life sciences at the molecular, cellular, organ, whole animal and production system levels. The main subject areas include: breeding and genetics; nutrition; physiology and functional biology of systems; behaviour, health and welfare; farming systems, environmental impact and climate change; product quality, human health and well-being. Animal models and papers dealing with the integration of research between these topics and their impact on the environment and people are particularly welcome.