This paper presents results from a mapping experiment to detect quantitative trait loci (QTL) for resistance to Haemonchus contortus infestation in merino sheep. The primary trait analysed was faecal worm egg count in response to artificial challenge at 6 months of age. In the first stage of the ...
Marshall, Karen
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Maddox, J.F.
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Lee, S.H.
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Zhang, Y.
,
Graser, H.U
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Gondro, C.
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Walken-Brown, S.W.
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Werf, J.H.J. van der
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[Genetic mapping of quantitative trait loci for resistance to Haemonchus contortus in sheep]
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Genetic mapping of quantitative trait loci for resistance to Haemonchus contortus in sheep
Background
Understanding the relationship between genetic admixture and performances is crucial for the success of crossbreeding programs. Use of small sets of ancestry informative markers (AIMs) is a cost effective option to estimate the levels of admixture in situations where pedigree recording...
Getachew, T.
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Huson, H.J.
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Wurzinger, Maria
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Burgstaller, J.
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Gizaw, Solomon
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Haile, Aynalem
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Rischkowsky, Barbara A.
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Brem, G.
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Boison, S.A.
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Mészáros, G.
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Okeyo Mwai, Ally
,
Sölkner, J.
,
[Identifying highly informative genetic markers for quantification of ancestry proportions in crossbred sheep populations: Implications for choosing optimum levels of admixture]
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Identifying highly informative genetic markers for quantification of ancestry proportions in crossbred sheep populations: Implications for choosing optimum levels of admixture
Mange-mites are economically important ectoparasites of sheep and goats responsible for rejection or downgrading of skins in tanneries or leather industries in Ethiopia. The objective of this systematic review was to compute the pooled prevalence estimate and identify factors influencing mange-mi...
Asmare, K.
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Abebe, R.
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Sheferaw, D.
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Krontveit, R.I.
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Wieland, Barbara
,
[Mange-mite infestation in small ruminants in Ethiopia: Systematic review and meta-analysis]
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Mange-mite infestation in small ruminants in Ethiopia: Systematic review and meta-analysis
The objective of this review paper is to examine whether or not sheep crossbreeding is a feasible option to improve indigenous sheep breeds in developing countries using Ethiopian case as example. The paper reviewed and discussed the history of exotic breed introduction, research, and development...
Getachew, T.
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Haile, Aynalem
,
Wurzinger, Maria
,
Rischkowsky, Barbara A.
,
Gizaw, Solomon
,
Abebe, A.
,
Sölkner, J.
,
[Review of sheep crossbreeding based on exotic sires and among indigenous breeds in the tropics: An Ethiopian perspective]
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Review of sheep crossbreeding based on exotic sires and among indigenous breeds in the tropics: An Ethiopian perspective
Metacestode, larval stages of canid cestode parasites are among the causes of morbidity, mortality and financial losses in small ruminants in Ethiopia as a result of organ and carcass condemnation at slaughter. Several studies have been conducted over the years; however, these studies often had l...
Asmare, K.
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Sibhat, B.
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Abera, M.
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Haile, Aynalem
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Degefu, H.
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Fentie, T.
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Bekele, J.
,
Terefe, G.
,
Szonyi, Barbara
,
Robertson, L.J.
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Wieland, Barbara
,
[Systematic review and meta-analysis of metacestode prevalence in small ruminants in Ethiopia]
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Systematic review and meta-analysis of metacestode prevalence in small ruminants in Ethiopia
Four crop residue based complete diets (60R: 40C) with Andhra hybrid and Telangana sorghum stover, paddy straw and sweet sorghum bagasse with leaf residue (SSBLR) as sole roughage were formulated and processed into either mash or block form to study the effect of crop residue, cultivar and physic...
Khan, A.A.
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Sai, M.
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Ravi, D.
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Prasad, K.V.S.V.
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Anandan, S.
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Ramana Reddy, Y.
,
Blümmel, Michael
,
[Effect of varying the crop residue, cultivar and physical form on intake and nutrient utilization in Deccani sheep fed complete diets]
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Effect of varying the crop residue, cultivar and physical form on intake and nutrient utilization in Deccani sheep fed complete diets
Heteroplasmy due to length polymorphism with tandem repeats in mtDNAs within individual was hardly studied in domestic animals. In the present study, we identified intra-individual length variation in the control region of mtDNAs in Nepalese sheep by molecular cloning and sequencing techniques. W...
Gorkhali, N.A.
,
Lin Jiang
,
Shrestha, B.S.
,
Xiao-Hong He
,
Qian-Jun Zhao
,
Han Jianlin
,
Yue-Hui Ma
,
[High occurrence of mitochondrial heteroplasmy in nepalese indigenous sheep (Ovis aries) compared to chinese sheep]
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High occurrence of mitochondrial heteroplasmy in nepalese indigenous sheep (Ovis aries) compared to chinese sheep
This study was designed to screen a large number of sheep to identify individuals with high and low methane (CH4) production, and to estimate repeatability and heritability of CH4 emissions in sheep, utilising portable accumulation chambers (PAC) designed for in-field use. Mature ewes (n = 710) s...
Goopy, John P.
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Robinson, D.L.
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Woodgate, R.T.
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Donaldson, A.J.
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Oddy, V.H.
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Vercoe, P.E.
,
Hegarty, R.S.
,
[Estimates of repeatability and heritability of methane production in sheep using portable accumulation chambers]
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Estimates of repeatability and heritability of methane production in sheep using portable accumulation chambers
Climate-smart agriculture aims to improve food security by increasing productivity and producer incomes, strengthening resilience to climate change, and reducing greenhouse gas (GHG) emissions. For the livestock sector, improved genetics is often identified as a climate-smart option. While there ...
Wilkes, Andreas
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Barnes, Andrew P.
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Baival, Batkhishig
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Clare, Abbie
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Namkhainyam, Busjavin
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Tserenbandi
,
Chuluunbaatar, Narantsogt
,
Namkhainyam, Tsolmon
,
[Is cross-breeding with indigenous sheep breeds an option for climate-smart agriculture?]
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Is cross-breeding with indigenous sheep breeds an option for climate-smart agriculture?
Mukhongo, D.M.
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Okeyo Mwai, Ally
,
Tapio, M.
,
Muigai, Anne W.T.
,
[Genetic diversity and population structure of the indigenous sheep in Kenya based on microsatellite analysis: Implications for their conservation]
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Genetic diversity and population structure of the indigenous sheep in Kenya based on microsatellite analysis: Implications for their conservation