Search Results - "McEwan, J. C."
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Animal board invited review: genetic possibilities to reduce enteric methane emissions from ruminants
Published in Animal (Cambridge, England) (01-09-2015)“…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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Understanding the relationship between the inbreeding coefficient and multilocus heterozygosity: theoretical expectations and empirical data
Published in Heredity (01-09-2004)“…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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sheep genome reference sequence: a work in progress
Published in Animal genetics (01-10-2010)“…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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Can we have our steak and eat it: The impact of breeding for lowered environmental impact on yield and meat quality in sheep
Published in Frontiers in genetics (16-09-2022)“…Global agreements in place to reduce methane emissions in livestock are a potential threat to food security. Successful but independent breeding strategies for…”
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An ovine hepatorenal fibrocystic model of a Meckel-like syndrome associated with dysmorphic primary cilia and TMEM67 mutations
Published in Scientific reports (09-05-2017)“…Meckel syndrome (MKS) is an inherited autosomal recessive hepatorenal fibrocystic syndrome, caused by mutations in TMEM67 , characterized by occipital…”
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Genetic parameters for production traits in New Zealand dual-purpose sheep, with an emphasis on dagginess
Published in Journal of animal science (01-05-2012)“…Genetic and phenotypic parameters were estimated for production and disease traits (including dagginess) from about 2 million pedigree-recorded animals born…”
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Linkage Disequilibrium in Domestic Sheep
Published in Genetics (Austin) (01-03-2002)“…The last decade has seen a dramatic increase in the number of livestock QTL mapping studies. The next challenge awaiting livestock geneticists is to determine…”
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Investigations into the GDF8 g+6723G-A polymorphism in New Zealand Texel sheep
Published in Journal of animal science (01-06-2009)“…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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Towards genomic selection for facial eczema disease tolerance in the New Zealand sheep industry
Published in Animal genetics (01-08-2014)“…Pithomycotoxicosis, more commonly known as facial eczema (FE), is a liver disease that occurs predominantly in New Zealand because of its toxigenic Pithomyces…”
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Highly Prolific Booroola Sheep Have a Mutation in the Intracellular Kinase Domain of Bone Morphogenetic Protein IB Receptor (ALK-6) That Is Expressed in Both Oocytes and Granulosa Cells
Published in Biology of reproduction (01-04-2001)“…The Booroola fecundity gene ( FecB ) increases ovulation rate and litter size in sheep and is inherited as a single autosomal locus. The effect of FecB is…”
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directed search in the region of GDF8 for quantitative trait loci affecting carcass traits in Texel sheep
Published in Journal of animal science (01-09-2005)“…A directed search for QTL affecting carcass traits was carried out in the region of growth differentiation factor 8 (GDF8, also known as myostatin) on ovine…”
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Carcass composition and meat quality differences between pasture-reared ewe and ram lambs
Published in Meat science (01-10-2005)“…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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Genomics detects cryptic wallaby invasion
Published in Biological invasions (01-12-2024)“…Abstract While conducting a landscape genomics study of invasive tammar wallabies ( Notamacropus eugenii ) in Aotearoa New Zealand we discovered that parma…”
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Meat quality traits were unaffected by a quantitative trait locus affecting leg composition traits in Texel sheep
Published in Journal of animal science (01-12-2005)“…A QTL affecting leg muscle and fat traits has been identified within the New Zealand Texel population. The QTL maps to a region on OAR 2 with a two-marker…”
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Estimates of genetic parameters for breech strike and potential indirect indicators in sheep
Published in New Zealand veterinary journal (04-03-2015)“…AIM: To determine flystrike incidence, and estimate genetic parameters and potential indicator traits to reduce breech strike susceptibility in Romney sheep in…”
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Ovine rumen papillae biopsy via oral endoscopy; a rapid and repeatable method for serial sampling
Published in New Zealand veterinary journal (03-05-2016)“…AIMS: To explore and validate the utility of rumen endoscopy for collection of rumen papillae for gene expression measurement. METHODS: Four adult Coopworth…”
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Heritability estimates of methane emissions from sheep
Published in Animal (Cambridge, England) (01-06-2013)“…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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Anaesthesia‐associated hypersensitivity reactions: seven years' data from a British bi‐specialty clinic
Published in Anaesthesia (01-01-2016)“…Summary Our bi‐specialty clinic was established to systematically investigate patients with suspected peri‐operative hypersensitivity reactions. Four hundred…”
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Genetic parameters for predicted methane production and laser methane detector measurements
Published in Journal of animal science (01-01-2015)“…Enteric ruminant methane is the most important greenhouse gas emitted from the pastoral agricultural systems. Genetic improvement of livestock provides a…”
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Potential of in-plant intramuscular fat predictions to enable sheep breeders to incorporate consumer preferences in breeding programmes
Published in Meat science (01-05-2023)“…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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