Search Results - "McEwan, J.C"

Heritability estimates of methane emissions from sheep by Pinares-Patiño, C. S., Hickey, S. M., Young, E. A., Dodds, K. G., MacLean, S., Molano, G., Sandoval, E., Kjestrup, H., Harland, R., Hunt, C., Pickering, N. K., McEwan, J. C.

“…The objective of this study was to determine the genetic parameters of methane (CH4) emissions and their genetic correlations with key production traits. The…”
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Animal board invited review: genetic possibilities to reduce enteric methane emissions from ruminants by Pickering, N. K., Oddy, V. H., Basarab, J., Cammack, K., Hayes, B., Hegarty, R. S., Lassen, J., McEwan, J. C., Miller, S., Pinares-Patiño, C. S., de Haas, Y.

“…Measuring and mitigating methane (CH4) emissions from livestock is of increasing importance for the environment and for policy making. Potentially, the most…”
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Comparison of greenhouse gas emissions from sheep measured using both respiration and portable accumulation chambers by O' Connor, E., McGovern, F.M., Berry, D.P., Dunne, E., McEwan, J.C., Rowe, S.J., Boland, T.M., Morrison, S.J., Aubry, A., Yan, T., McHugh, N.

“…•Gaseous output is measured in both respiration and portable accumulation chambers.•Moderate correlations between methane output measured using both…”
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sheep genome reference sequence: a work in progress by Archibald, A.L, Cockett, N.E, Dalrymple, B.P, Faraut, T, Kijas, J.W, Maddox, J.F, McEwan, J.C, Hutton Oddy, V, Raadsma, H.W, Wade, C, Wang, J, Wang, W, Xun, X

“…Until recently, the construction of a reference genome was performed using Sanger sequencing alone. The emergence of next-generation sequencing platforms now…”
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Heritability of ram mating success in multi-sire breeding situations by Juengel, J. L., Hickey, S. M., Clarke, S. M., Cullen, N. G., McEwan, J. C., Dodds, K. G.

“…Multi-sire mating of a mob of ewes is commonly used in commercial sheep production systems. However, ram mating success (defined as the number of lambs sired…”
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Repeatability of methane emissions from sheep by Pinares-Patiño, C.S., McEwan, J.C., Dodds, K.G., Cárdenas, E.A., Hegarty, R.S., Koolaard, J.P., Clark, H.

“…Breeding of ruminant livestock for low CH4 emission is an attractive means of mitigating enteric CH4 emissions. However success requires that the mechanism…”
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Development of an in situ procedure to evaluate the reticulo-rumen morphology of sheep selected for divergent methane emissions by Waite, S. J., Zhang, J., Cater, J. E., Waghorn, G. C., Bain, W. E., McEwan, J. C., Suresh, V.

“…Published studies have shown that methane yield (g CH4/kg dry matter) from sheep is positively correlated with the size (volume and surface area) of the…”
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Genetically resistant sheep avoid parasites to a greater extent than do susceptible sheep by Hutchings, M.R, Knowler, K.J, McAnulty, R, McEwan, J.C

“…Livestock breeding programmes have created resistant (R) and susceptible (S) sheep that differ in their ability to control parasites through their immune…”
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Carcass composition and meat quality differences between pasture-reared ewe and ram lambs by Johnson, P.L., Purchas, R.W., McEwan, J.C., Blair, H.T.

“…Comparisons were made of carcass and meat quality characteristics of pasture-raised Texel-cross ewe ( n = 269) and ram ( n = 275) lambs between 5 and 8 months…”
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Integration of molecular and quantitative information in sheep and goat industry breeding programmes by Dodds, K.G., McEwan, J.C., Davis, G.H.

“…Molecular information is finding increasing use in sheep and goat breeding programs, as systems become available to make use of this information and the cost…”
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Potential of in-plant intramuscular fat predictions to enable sheep breeders to incorporate consumer preferences in breeding programmes by Johnson, P.L., McEwan, J.C., Hickey, S.M., Dodds, K.G., Hitchman, S., Agnew, M.P., Bain, W.E., Newman, S.-A.N., Pickering, N.K., Craigie, C.R., Clarke, S.M.

“…The inclusion of eating quality traits in sheep genetic improvement programmes is desirable. Intramuscular fat (IMF) plays a key role in ensuring consumer…”
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Excreta emissions in progeny of low and high enteric methane yield selection line sheep fed pasture of different qualities by Jonker, A., MacLean, S., Woyimo Woju, C., Garcia Rendon Calzada, M., Yu, W., Molano, G., Hickey, S., Pinares-Patiño, C.S., McEwan, J.C., Janssen, P.H., Sandoval, E., Lewis, S., Rowe, S.

“…•Excreta emissions were estimated for genetically low and high methane yield sheep.•There were only minor differences in excreta output between low and high…”
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Understanding the relationship between the inbreeding coefficient and multilocus heterozygosity: theoretical expectations and empirical data by Slate, J, David, P, Dodds, K.G, Veenvliet, B.A, Glass, B.C, Broad, T.E, McEwan, J.C

“…Geneticists have been interested in inbreeding and inbreeding depression since the time of Darwin. Two alternative approaches that can be used to measure how…”
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Investigations into the GDF8 g+6723G-A polymorphism in New Zealand Texel sheep by Johnson, P.L, Dodds, K.G, Bain, W.E, Greer, G.J, McLean, N.J, McLaren, R.J, Galloway, S.M, van Stijn, T.C, McEwan, J.C

“…This work investigated effects of carrying 0, 1, or 2 copies of the A allele resulting from the g+6723G-A transition in growth differentiation factor gene…”
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The physiological effects of natural variation in growth hormone gene copy number in ram lambs by Gootwine, E., Suttie, J.M., McEwan, J.C., Veenvliet, B.A., Littlejohn, R.P., Fennessy, P.F., Montgomery, G.W.

“…The effects of natural variation in the number of copies of the growth hormone (GH) gene on growth parameters, plasma GH profiles, and the response to GHRH…”
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Economic benefits in selection for weight and composition of lamb cuts predicted by computer tomography by Kvame, T., McEwan, J.C., Amer, P.R., Jopson, N.B.

“…Consumer preferences for lamb cuts are affected by the size, shape and fatness of cuts. Using computer tomography (CT), the best anatomical scan sites for…”
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Economic values for ewe prolificacy and lamb survival in New Zealand sheep by Amer, P.R., McEwan, J.C., Dodds, K.G., Davis, G.H.

“…Economic values of changes in ewe prolificacy (EP) and two lamb survival traits were quantified for situations where each trait is changed by either…”
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Bone density in sheep: genetic variation and quantitative trait loci localisation by Campbell, A.W, Bain, W.E, McRae, A.F, Broad, T.E, Johnstone, P.D, Dodds, K.G, Veenvliet, B.A, Greer, G.J, Glass, B.C, Beattie, A.E, Jopson, N.B, McEwan, J.C

“…Bone density (BD) is an important factor in osteoporotic fracture risk in humans. However, BD is a complex trait confounded by environmental influences and…”
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Generation of a preliminary bovine gene atlas, using expression clustering to annotate gene function by Keane, O M, Maqbool, N, McCulloch, A F, McEwan, J C, Dodds, K G

“…Genes whose products function in a common biological process are often co-regulated. When regulation occurs at the transcriptional level, co-expressed genes…”
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QTL study of growth and body shape in the inter-species hybrid of Père David's deer (Elaphurus davidianus) and red deer (Cervus elaphus) by Maqbool, N.J, Tate, M.L, Dodds, K.G, Anderson, R.M, McEwan, K.M, Mathias, H.C, McEwan, J.C, Hall, R.J

“…An interspecies deer hybrid resource population developed from a cross of Père David's and red deer was used to detect QTL that account for species…”
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