More feed efficient sheep produce less methane and carbon dioxide when eating high-quality pellets

Paganoni, B.; Rose, I; Macleay, C.; Jones, Clifford L. W.; Brown, D. J.; Kearney, G. A.; Ferguson, M.B.; Thompson, A. N.

doi:10.2527/jas2017.1499

Cited by 13 publications

(16 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Specifically, in New Zealand, farmed ruminants contribute 35% of the country’s greenhouse gas (GHG) emissions ( MFE, 2017 ). Methane expressed in absolute amounts or as a proportion of intake is heritable in sheep as reported by several authors ( Pinares-Patiño et al, 2013 ; Paganoni et al, 2017 ; Jonker et al, 2018 ). Methane production is closely associated with feed intake so whether increased efficiency also means less CH 4 emitted is becoming an increasingly important aspect of production research.…”

Section: Introductionmentioning

confidence: 61%

“…Animals used in this study were ewe lambs, with measurements related to this study recorded when the lambs were approximately 9 months of age. Data were collected over 3 years (2015)(2016)(2017) in cohorts of approximately 200 lambs. In Year 1 (2015) a single cohort (Cohort1) of 200 ewe lambs was measured; in Year 2 (2016) and Year 3 (2017), two cohorts of 200 ewe lambs were measured back-to-back per year (Cohort2a and Cohort2b;Cohort3a and Cohort3b,respectively).…”

Section: Animalsmentioning

confidence: 99%

“…Data were collected over 3 years (2015)(2016)(2017) in cohorts of approximately 200 lambs. In Year 1 (2015) a single cohort (Cohort1) of 200 ewe lambs was measured; in Year 2 (2016) and Year 3 (2017), two cohorts of 200 ewe lambs were measured back-to-back per year (Cohort2a and Cohort2b;Cohort3a and Cohort3b,respectively). The ewe lambs used were of New Zealand maternal genetics sourced from one of three genetically linked flocks: the Beef + Lamb New Zealand Genetics Central Progeny Test (SIL flock number 4640; n = 400) which represents a variety of maternal breeds as described by McLean et al (2006), the AgResearch Research flock (SIL flock number 2638; n = 408) (Jonker et al, 2018), which historically had a genetic base of Coopworths, but has been extended to include ewes sired by New Zealand maternal industry sires of different breeds, and the CH 4 selection lines (SIL flock number 3633; n = 192) (Pinares-Patiño et al, 2013).…”

Section: Animalsmentioning

confidence: 99%

“…This large range in estimates is likely due to differences in accuracy of records and length of recording, together with the level of genetic variation in animals measured. There are comparatively few heritability estimates for measures of RFI or alternative measures of feed efficiency in sheep, but such estimates range from 0.11 to 0.49 ( Cammack et al, 2005 ; Fogarty et al, 2006 ; Paganoni et al, 2017 ; Tortereau et al, 2020 ). To date, only preliminary genetic parameter estimates have been published for NZ maternal sheep breeds ( Johnson et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Genetic parameters for residual feed intake, methane emissions, and body composition in New Zealand maternal sheep

et al. 2022

View full text Add to dashboard Cite

There is simultaneous interest in improving the feed efficiency of ruminant livestock and reducing methane (CH4) emissions. The relationship (genetic and phenotypic) between feed efficiency (characterized as residual feed intake: RFI) and greenhouse gases [methane (CH4) and carbon dioxide (CO2)] traits in New Zealand (NZ) maternal sheep has not previously been investigated, nor has their relationship with detailed estimates of body composition. To investigate these relationships in NZ maternal sheep, a feed intake facility was established at AgResearch Invermay, Mosgiel, NZ in 2015, comprising automated feeders that record individual feeding events. Individual measures of feed intake, feeding behavior (length and duration of eating events), and gas emissions (estimated using portable accumulation chambers) were generated on 986 growing maternal ewe lambs sourced from three pedigree recorded flocks registered in the Sheep Improvement Limited database (www.sil.co.nz). Additional data were generated from a subset of 591 animals for body composition (estimated using ultrasound and computed tomography scanning). The heritability estimates for RFI, CH4, and CH4/(CH4+CO2) were 0.42 ± 0.09, 0.32 ± 0.08, and 0.29 ± 0.06, respectively. The heritability estimates for the body composition traits were high for carcass lean and fat traits; for example, the heritability for visceral fat (adjusted for body weight) was 0.93 ± 0.19. The relationship between RFI and CH4 emissions was complex, and although less feed eaten will lead to a lowered absolute amount of CH4 emitted, there was a negative phenotypic and genetic correlation between RFI and CH4/(CH4+CO2) of −0.13 ± 0.03 and −0.41 ± 0.15, respectively. There were also genetic correlations, that were different from zero, between both RFI and CH4 traits with body composition including a negative correlation between the proportion of visceral fat in the body and RFI (−0.52 ± 0.16) and a positive correlation between the proportion of lean in the body and CH4 (0.54 ± 0.12). Together the results provide the first accurate estimates of the genetic correlations between RFI, CH4 emissions, and the body composition (lean and fat) in sheep. These correlations will need to be accounted for in genetic improvement programs.

show abstract

Section: Introductionmentioning

confidence: 61%

Section: Animalsmentioning

confidence: 99%

Section: Animalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Genetic parameters for residual feed intake, methane emissions, and body composition in New Zealand maternal sheep

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Consistentemente, Samuels et al (1991) encontraron, también, mayor retención de nitrógeno en los ovinos cuando el ensilado de residuos de pescado fue adicionado a alimentos con alto contenido en fibra cruda. Últimamente ha sido reportado que las raciones concentradas en energía reducen la producción de metano y mejoran la eficiencia productiva de los ovinos (Paganoni et al, 2017).…”

Section: Resultados Y Discusión Parámetros Productivosunclassified

Ensilado de residuos de trucha en la alimentación de ovinos de engorde

Parisuaña-Callata¹,

Churacutipa-Mamani²,

Salas³

et al. 2018

Rev. investig. vet. Perú

View full text Add to dashboard Cite

RESUMENSe determinó el efecto del nivel de inclusión de ensilado de residuos de trucha (ERT) en la ración de ovinos sobre el consumo medio diario (CMD), la ganancia media diaria (GMD), el índice de conversión alimenticia (ICA) y el sabor de la carne de ovinos. Se distribuyeron 30 ovinos en tres tratamientos (0, 4 y 8% de ERT), considerando 5 réplicas por tratamiento. Al final del experimento (84 días) los ovinos fueron beneficiados y se realizó la prueba de degustación de la carne. Los resultados indicaron que el nivel más alto de ERT en la ración redujo el CMD (2.08, 2.01 vs. 1.65 kg/día para 0, 4 y 8% de ERT, respectivamente, p<0.001) y la GMD (0.25, 0.28 vs 0.23 kg/día, p<0.03), mientras que el ICA mejoró (8.49 vs 7.28, 7.07 kg:kg, p<0.001). Además, la inclusión de ERT no afectó el sabor de la carne de ovino. Se concluye que el ERT en las raciones de engorde de ovinos mejora el rendimiento productivo sin afectar el sabor de la carne.Palabras clave: ovinos; ensilado de trucha; rendimiento productivo; alimentación ABSTRACTThe effect of the level of inclusion of trout residues silage (ERT) on lamb ration on daily feed intake (CMD), daily gain (GMD), feed efficiency (ICA) and the taste of lamb meat was evaluated. Thirty lambs were distributed in three treatments (0, 4 and 8% ERT) considering 5 replicates per treatment. At the end of the experiment (84 days) the lambs were slaughtered, and a taste panel evaluation was performed. The results

show abstract

An investigation of links between metabolic rate and feed efficiency in European sea bass Dicentrarchus labrax

Rodde

Verdal

Vandeputte

et al. 2021

Journal of Animal Science

View full text Add to dashboard Cite

Feed efficiency (FE) is the amount of body weight gain for a given feed intake. Improving FE through selective breeding is key for sustainable finfish aquaculture but its evaluation at individual level is technically challenging. We therefore investigated whether individual routine metabolic rate (RMR) was a predictor of individual FE in the European sea bass Dicentrarchus labrax, a major species in European mariculture. The European sea bass has three genetically distinct populations across its geographical range, namely Atlantic Ocean (AT), West Mediterranean (WM) and East Mediterranean (EM). We compared FE and RMR of fish from these three populations at 18°C or 24°C. We held 200 fish (62 AT, 66 WM and 72 EM) in individual aquaria and fed them from ad libitum down to fasting. Feed efficiency was assessed for an ad libitum feeding rate and for a fixed restricted ration (1% of metabolic body weight.day -1, with metabolic body weight = body weight 0.8). After being refed 12 weeks in a common tank, individual RMR was measured over 36h by intermittent flow respirometry. There was a significant effect of temperature whereby fish at 18°C had greater mean FE (P < 0.05) and lower RMR (P < 0.001). There was also a significant effect of population, where AT fish had lower FE (P < 0.05) and greater RMR (P < 0.001) than WM and EM, at both temperatures. Despite these differences in temperature and population means, individual FE and RMR were not significantly correlated (P > 0.05). Therefore, although the results provide evidence of an association between metabolic rate and FE, RMR was not a predictor of individual FE, for reasons that require further investigation.

show abstract

More feed efficient sheep produce less methane and carbon dioxide when eating high-quality pellets

Cited by 13 publications

References 22 publications

Genetic parameters for residual feed intake, methane emissions, and body composition in New Zealand maternal sheep

Genetic parameters for residual feed intake, methane emissions, and body composition in New Zealand maternal sheep

Ensilado de residuos de trucha en la alimentación de ovinos de engorde

An investigation of links between metabolic rate and feed efficiency in European sea bass Dicentrarchus labrax

Contact Info

Product

Resources

About