Potential Environmental Benefits of Residual Feed Intake as Strategy to Mitigate Methane Emissions in Sheep

Muro-Reyes, Alberto; Bañuelos, Héctor Gutiérrez; Diaz-Garcia, L. H.; Gutiérrez-Piña, Francisco J.; Escareño-Sánchez, Luis Manuel; Bañuelos-Valenzuela, Rómulo; Medina-Flores, Carlos Aurelio; Corral-Luna, Agustin

doi:10.3923/javaa.2011.1551.1556

Cited by 23 publications

(18 citation statements)

References 7 publications

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“…The findings of the present experiment call for detailed investigation involving larger herds, considering genetic aspects responsible for phenotypic variations in RFI among Sahiwal calves. Muro-Reyes et al (2011) found a positive correlation between RFI and CH 4 in sheep (r = 0.79; p < 0.001), which agrees with the current results. Similar observations have been made by Nkrumah et al (2006) and Hegarty et al (2007) in beef cattle concluding RFI as an effective CH 4 abating option at herd level.…”

Section: Correlation Between Rfi and Other Parameterssupporting

confidence: 95%

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Nutrient utilisation and methane emissions in Sahiwal calves differing in residual feed intake

Sharma

Mahesh

Mohini

et al. 2014

Archives of Animal Nutrition

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The presented study aimed at investigating the residual feed intake (RFI) of Sahiwal calves, nutrient utilisation as affected by RFI and its relationship with methane (CH4) emissions and some blood metabolites. Eighteen male Sahiwal calves (10-18 months of age; mean body weight 133 kg) were fed ad libitum with a total mixed ration. After calculating RFI for individual calves (-0.40 to +0.34 kg DM/d), they were divided into three groups with low, medium and high RFI, respectively. Dry matter intake (DMI) was higher (p < 0.05) in Group High RFI, whereas digestibility of all nutrients except crude protein and ether extract was significantly higher in Group Low RFI. Nitrogen balance was also significantly higher in Group Low RFI (20.2 g/d) than in Group High RFI (17.0 g/d). Average daily gain and feed conversion ratio were similar among the groups. With exception of glucose, concentrations of all measured blood metabolites were higher in Group High RFI (p < 0.05). Compared with Group High RFI, the CH4 emission of Group Low RFI was significantly lower (on the basis g/d and g/kg DMI by 11% and 19%, respectively). Furthermore, the CH4 emission [g/d] was significantly correlated with RFI (r = 0.77). Because higher feed efficiency and less CH4 production were observed in Group Low RFI, it was concluded that RFI can be used as a measure of feed efficiency, which has a potential to select Sahiwal calves for lowered CH4 emissions.

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Section: Correlation Between Rfi and Other Parameterssupporting

confidence: 95%

“…Improving the feed efficiency has a potential to reduce this partly, as genetically efficient animals (low RFI) are reported to emit 11-26% less CH 4 per unit of product (Nkrumah et al 2006;Hegarty et al 2007;Hristov et al 2013) or gain (Muro-Reyes et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Nutrient utilisation and methane emissions in Sahiwal calves differing in residual feed intake

Sharma

Mahesh

Mohini

et al. 2014

Archives of Animal Nutrition

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“…Residual feed intake (RFI) is gaining use as a measure of feed efficiency as it is moderately heritable and genetically independent of mature size (Herd et al, 2003;Arthur and Herd, 2012). More efficient (low or negative RFI) cattle and sheep have been shown to have reduced feed intake (O'Connor et al, 1999;Nkrumah et al, 2004;Kolath et al, 2006;Redden et al, 2014) and to produce less methane (Nkrumah et al, 2006;Muro-Reyes et al, 2011). Additionally, when beef cattle have been selected based on feed efficiency, growing cattle that are more efficient had similar growth and meat production while consuming less feed (Herd et al, 2003;Arthur et al, 2004), indicating potential for selection based on RFI to improve efficiency.…”

Section: Introductionmentioning

confidence: 99%

The relationship of residual feed intake and visceral organ size in growing lambs fed a concentrate- or forage-based diet

et al. 2015

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“…CH 4 production and feed efficiency are linked, in the sense that a low feed efficiency, expressed as residual feed intake (RFI), is accompanied by lower CH 4 production [94–96]. The reverse does not apply, however, as has been found in dairy cows in the RuminOmics project.…”

Section: Introductionmentioning

confidence: 99%

The ruminal microbiome associated with methane emissions from ruminant livestock

Tapio

Snelling

Strozzi

et al. 2017

J Animal Sci Biotechnol

249

182

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Methane emissions from ruminant livestock contribute significantly to the large environmental footprint of agriculture. The rumen is the principal source of methane, and certain features of the microbiome are associated with low/high methane phenotypes. Despite their primary role in methanogenesis, the abundance of archaea has only a weak correlation with methane emissions from individual animals. The composition of the archaeal community appears to have a stronger effect, with animals harbouring the Methanobrevibacter gottschalkii clade tending to be associated with greater methane emissions. Ciliate protozoa produce abundant H2, the main substrate for methanogenesis in the rumen, and their removal (defaunation) results in an average 11% lower methane emissions in vivo, but the results are not consistent. Different protozoal genera seem to result in greater methane emissions, though community types (A, AB, B and O) did not differ. Within the bacteria, three different ‘ruminotypes’ have been identified, two of which predispose animals to have lower methane emissions. The two low-methane ruminotypes are generally characterized by less abundant H2-producing bacteria. A lower abundance of Proteobacteria and differences in certain Bacteroidetes and anaerobic fungi seem to be associated with high methane emissions. Rumen anaerobic fungi produce abundant H2 and formate, and their abundance generally corresponds to the level of methane emissions. Thus, microbiome analysis is consistent with known pathways for H2 production and methanogenesis, but not yet in a predictive manner. The production and utilisation of formate by the ruminal microbiota is poorly understood and may be a source of variability between animals.

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Potential Environmental Benefits of Residual Feed Intake as Strategy to Mitigate Methane Emissions in Sheep

Cited by 23 publications

References 7 publications

Nutrient utilisation and methane emissions in Sahiwal calves differing in residual feed intake

Nutrient utilisation and methane emissions in Sahiwal calves differing in residual feed intake

The relationship of residual feed intake and visceral organ size in growing lambs fed a concentrate- or forage-based diet

The ruminal microbiome associated with methane emissions from ruminant livestock

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