Body linear measurements, and specifically heart girth (HG), have been shown to be useful predictors of cattle liveweight. To test the accuracy of body linear measurements for predicting liveweight, crossbred dairy cattle of different genotypes were measured and weighed. A total of 352 mature cow...
Lukuyu, Margaret N.
,
Gibson, John P.
,
Savage, D.B.
,
Duncan, Alan J.
,
Mujibi, F.D.N.
,
Okeyo Mwai, Ally
,
[Use of body linear measurements to estimate liveweight of crossbred dairy cattle in smallholder farms in Kenya]
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Use of body linear measurements to estimate liveweight of crossbred dairy cattle in smallholder farms in Kenya
Mice whose tumor necrosis factor alpha (TNF-) genes were disrupted developed higher levels of parasitemia than wild-type mice following infection with Trypanosoma congolense IL1180 or T. brucei brucei GUTat3.1, confirming the results of earlier studies. To determine whether TNF- directly affects ...
Kitani, H.
,
Black, S.J.
,
Nakamura, Y.
,
Naessens, Jan
,
Murphy, N.
,
Yokomizo, Y.
,
Gibson, John P.
,
Iraqi, F.A.
,
[Recombinant tumor necrosis factor alpha does not inhibit the growth of African trypanosomes in Axenic cultures]
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Recombinant tumor necrosis factor alpha does not inhibit the growth of African trypanosomes in Axenic cultures
About 30% of all farm animal breeds worldwide are at risk of extinction. To prevent this irreversible erosion of genetic diversity, the limited funds available for conservation need to be allocated in the most efficient way. Applying the diversity concept of Weitzman [Quart. J. Econ. CVII (1992) ...
Simianer, H.
,
Marti, S.
,
Gibson, John P.
,
Hanotte, Olivier H.
,
Rege, J.E.O.
,
[An approach to the optimal allocation of conservation funds to minimize loss of genetic diversity between livestock breeds]
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An approach to the optimal allocation of conservation funds to minimize loss of genetic diversity between livestock breeds
Trypanosomosis, or sleeping sickness, is a major disease constraint on livestock productivity in sub-Saharan Africa. To identify quantitative trait loci (QTL) controlling resistance to trypanosomosis in cattle, an experimental cross was made between trypanotolerant African N'Dama (Bos taurus) and...
Hanotte, Olivier H.
,
Ronin, Y.
,
Agaba, Morris
,
Nilsson, P.
,
Gelhaus, A.
,
Horstmann, R.
,
Sugimoto, Y.
,
Kemp, Stephen J.
,
Gibson, John P.
,
Korol, A.
,
Soller, M.
,
Teale, A.J.
,
[Mapping of quantitative trait loci controlling trypanotolerance in a cross of tolerant West African N'Dama and susceptible East African Boran cattle]
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Mapping of quantitative trait loci controlling trypanotolerance in a cross of tolerant West African N'Dama and susceptible East African Boran cattle
To examine differences in cytokine profiles that may confer tolerance/susceptibility to bovine African trypanosomiasis, N'Dama (trypanotolerant, n = 8) and Boran (trypanosusceptible, n = 8) cattle were experimentally challenged with Trypanosoma congolense. Blood samples were collected over a 34-d...
O'Gorman, G.M.
,
Park, S.D.E.
,
Hill, E.W.
,
Meade, K.G.
,
Mitchell, L.C.
,
Agaba, Morris
,
Gibson, John P.
,
Hanotte, Olivier H.
,
Naessens, Jan
,
Kemp, Stephen J.
,
MacHugh, D.E.
,
[Cytokine mRNA profiling of peripheral blood mononuclear cells from trypanotolerant and trypanosusceptible cattle infected with Trypanosoma congolense]
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Cytokine mRNA profiling of peripheral blood mononuclear cells from trypanotolerant and trypanosusceptible cattle infected with Trypanosoma congolense
Trypanosoma congolense is a protozoan parasite that causes severe diseases in livestock. Three major quantative trait loci (QTL), Tir1, Tir2, and Tir3, control the survival time of mice after infection with T. congolense. Congenic mice carrying the C57BL/6 resistance alleles on the A/J background...
Rathkolb, B.
,
Noyes, H.A.
,
Brass, A.
,
Dark, P.
,
Fuchs, H.
,
Gailus-Durner, V.
,
Gibson, John P.
,
Angelis, M.H. de
,
Ogugo, M.
,
Iraqi, F.A.
,
Kemp, Stephen J.
,
Naessens, Jan
,
Pope, M.E.
,
Wolf, E.
,
Agaba, Morris
,
[Clinical chemistry of congenic mice with quantitative trait loci for predicted responses to Trypanosoma congolense infection]
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Clinical chemistry of congenic mice with quantitative trait loci for predicted responses to Trypanosoma congolense infection
The world's domestic animal breeds represent an important resource for economic development and livelihood security. Extensive genetic diversity in these breeds allows the existence of livestock in all but the most extreme environments globally, providing a range of products and functions. Unfort...
Rege, J.E.O.
,
Gibson, John P.
,
[Animal genetic resources and economic development: issues in relation to economic valuation]
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Animal genetic resources and economic development: issues in relation to economic valuation
The heat shock protein (HSP) 70.1 gene lies on mouse chromosome 17 among the candidates for Tir1, the major quantitative trait locus associated with response to Trypanosoma congolense infection. To evaluate whether the HSP70.1 gene is involved in the response, we compared the susceptibility of HS...
Nakamura, Y.
,
Naessens, Jan
,
Takata, M.
,
Taniguchi, T.
,
Sekikawa, K.
,
Gibson, John P.
,
Iraqi, F.A.
,
[Susceptibility of heat shock protein 70.1-deficient C57BL/6 J, wild-type C57BL/6 J and A/J mice to Trypanosoma congolense infection]
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Susceptibility of heat shock protein 70.1-deficient C57BL/6 J, wild-type C57BL/6 J and A/J mice to Trypanosoma congolense infection
Differences in gene expression may be caused by nearby DNA polymorphisms (cis regulation) or by interactions of gene control regions with polymorphic transcription factors (trans regulation). Trans acting loci are much harder to detect than cis acting loci and their effects are much more sensitiv...
Noyes, H.A.
,
Agaba, Morris
,
Anderson, S.
,
Archibald, A.L.
,
Brass, A.
,
Gibson, John P.
,
Hall, L.
,
Hulme, H.
,
Oh, S.J.
,
Kemp, Stephen J.
,
[Genotype and expression analysis of two inbred mouse strains and two derived congenic strains suggest that most gene expression is trans regulated and sensitive to genetic background]
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Genotype and expression analysis of two inbred mouse strains and two derived congenic strains suggest that most gene expression is trans regulated and sensitive to genetic background
An international multidisciplinary consortium is conducting a programme of research on the host response to trypanosome infection. This builds upon quantitative trait loci (QTL) mapping which identified genome regions influencing susceptibility to pathology following T. congolense infection in bo...
Kemp, Stephen J.
,
Hanotte, Olivier H.
,
Agaba, Morris
,
Noyes, H.A.
,
Gibson, John P.
,
Archibald, A.L.
,
Rennie, C.
,
Hulme, H.
,
Brass, A.
,
[Genomics approaches to study the biology underlying resistance to trypanosomiasis--some unexpected lessons]
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Genomics approaches to study the biology underlying resistance to trypanosomiasis--some unexpected lessons