Search Results - "Gordon, A.W."

Physical and economic performance of dairy cows managed within contrasting grassland-based milk production systems over 3 successive lactations by Ferris, C.P., Watson, S., Gordon, A.W., Barley, J.

“…A diverse range of grassland-based milk production systems are practiced on dairy farms in temperate regions, with systems differing in relation to the…”
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Performance of dairy cows offered either zero-grazed grass or grass silage prepared from the same sward by Lavery, A., Gordon, A.W., White, A., Ferris, C.P.

“…•Ensiling herbage at an early growth stage may offer an alternative to zero-grazing.•Wilting young leafy herbage in later season was a challenge.•Resulting…”
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Comparison of the sulfur hexafluoride tracer and respiration chamber techniques for estimating methane emissions and correction for rectum methane output from dairy cows by Muñoz, C, Yan, T, Wills, D A, Murray, S, Gordon, A W

“…The objectives of the present study were to compare the sulfur hexafluoride (SF₆) and respiration chamber techniques for measuring methane (CH₄) emissions from…”
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Updating maintenance energy requirement for the current sheep flocks and the associated effect of nutritional and animal factors by Yang, C T, Wang, C M, Zhao, Y G, Chen, T B, Aubry, A, Gordon, A W, Yan, T

“…There is evidence indicating that using the current UK energy feeding system to ration the present sheep flocks may underestimate their nutrient requirements…”
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The impact of floor type on lameness and hoof health of dairy origin bulls by Murphy, V. S., Lowe, D. E., Lively, F. O., Gordon, A. W.

“…This study aimed to evaluate the effect of using different floor types to accommodate growing and finishing beef cattle on lameness. In all, 80 dairy origin…”
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The effect of diet and covering fully slatted concrete floors with rubber strips on the intake, performance and cleanliness of dairy-origin bulls by Lowe, D. E., Lively, F. O., Gordon, A. W.

“…Fully slatted concrete floors are prevalent in beef cattle housing. However, concerns have been raised about welfare of cattle accommodated on slats. The…”
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Effect of overlaying rubber on fully slatted concrete floors on hoof health and lying postures in finishing dairy-origin bulls offered two contrasting diets by Lowe, D E, Gordon, A W, Lively, F O

“…Fully slatted concrete floors are labour-efficient, cost-effective and thus common in beef cattle housing. However, the welfare of cattle accommodated on them…”
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Consumer assessment, in Ireland and the United Kingdom, of the impact of the method of suspension of carcasses from dairy-origin bulls and steers, on the sensory characteristics of the longissimus muscle by Moloney, A.P., Chong, F.S., Hagan, T.D.J., Gordon, A.W., Methven, L., O’Sullivan, M.G., Farmer, L.J.

“…The objective was to compare the assessment of beef produced in Ireland from a 19-month bull or a 24-month steer dairy beef production system by consumers in…”
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The effect of floor type on the performance, cleanliness, carcass characteristics and meat quality of dairy origin bulls by Murphy, V. S., Lowe, D. E., Lively, F. O., Gordon, A. W.

“…The aim of this study was to evaluate the effect of using different floor types to accommodate growing and finishing beef cattle on their performance,…”
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Effects of replacing grass silage with maize silages differing in inclusion level and maturity on the performance, meat quality and concentrate-sparing effect of beef cattle by Keady, T. W. J., Gordon, A. W., Moss, B. W.

“…The effects of maturity of maize at harvest, level of inclusion and potential interactions on the performance, carcass composition, meat quality and potential…”
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Campylobacter spp. in conventional broiler flocks in Northern Ireland: Epidemiology and risk factors by McDowell, S.W.J., Menzies, F.D., McBride, S.H., Oza, A.N., McKenna, J.P., Gordon, A.W., Neill, S.D.

“…Risk factors for Campylobacter infection in conventional broiler flocks in the time period up to the first removal of birds to slaughter were investigated over…”
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An evaluation of the efficacy of compound alpha and triclabendazole against two isolates of Fasciola hepatica by McConville, M., Brennan, G.P., Flanagan, A., Edgar, H.W.J., Hanna, R.E.B., McCoy, M., Gordon, A.W., Castillo, R., Hernández-Campos, A., Fairweather, I.

“…Seventy indoor-reared sheep were divided into 10 groups to test the efficacy of the experimental fasciolicide, compound alpha (15 mg/kg) against…”
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The effects of climate change on ovine parasitic gastroenteritis determined using veterinary surveillance and meteorological data for Northern Ireland over the period 1999–2009 by McMahon, C., Gordon, A.W., Edgar, H.W.J., Hanna, R.E.B., Brennan, G.P., Fairweather, I.

“…While the influence of temperature and moisture on the free-living stages of gastrointestinal nematodes have been described in detail, and evidence for global…”
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Comparison of the longevity and lifetime performance of Scottish Blackface ewes and their crosses within hill sheep flocks by Annett, R.W, Carson, A.F, Dawson, L.E.R, Irwin, D, Gordon, A.W, Kilpatrick, D.J

“…A study was undertaken to compare the longevity and lifetime lamb output of purebred Scottish Blackface (BF) ewes with a range of crossbred genotypes from…”
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Effects of sire breed on ewe dystocia, lamb survival and weaned lamb output in hill sheep systems by Speijers, M. H. M., Carson, A. F., Dawson, L. E. R., Irwin, D., Gordon, A. W.

“…A study was carried out on six hill farms, located in the main hill regions of Northern Ireland, over three breeding seasons to investigate the effect of sire…”
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Field trial of six serological tests for bovine brucellosis by Abernethy, D.A., Menzies, F.D., McCullough, S.J., McDowell, S.W.J., Burns, K.E., Watt, R., Gordon, A.W., Greiner, M., Pfeiffer, D.U.

“…Serum agglutination (SAT), complement fixation (CFT), indirect ELISA (iELISA), competitive ELISA (cELISA), Rose Bengal (RBT) and EDTA-modified agglutination…”
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Effect of plane of nutrition of 1- and 2-year-old ewes in early and mid-pregnancy on ewe reproduction and offspring performance up to weaning by Muñoz, C., Carson, A. F., McCoy, M. A., Dawson, L. E. R., O’Connell, N. E., Gordon, A. W.

“…The objective of the present study was to determine the effect of plane of nutrition in early pregnancy (EP) and mid-pregnancy (MP), on the productive…”
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Effects of replacing grass silage with either maize silage or concentrates during late pregnancy on the performance of breeding ewes fed isonitrogenous diets by Annett, R. W., Carson, A. F., Gordon, A. W.

“…A study was undertaken to investigate the performance of breeding ewes fed a range of forage and concentrate-based diets in late pregnancy, balanced for supply…”
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Associations between genetic merit for milk production and animal parameters and the fertility performance of dairy cows by Mackey, D. R., Gordon, A. W., McCoy, M. A., Verner, M., Mayne, C. S.

“…Relationships between genetic merit for milk production and animal parameters and various parameters of reproductive performance were examined using multilevel…”
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Effects of genotype and plane of nutrition on growth and carcass characteristics of lambs from hill sheep systems by Speijers, M. H. M., Carson, A. F., Dawson, L. E. R., Gordon, A. W.

“…The objective of this study was to determine the effect of lamb genotype and plane of nutrition on post-weaning lamb growth, and carcass characteristics in…”
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