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Abstract

Due to the absence of accurate pedigree information, it has not been possible to implement genetic evaluations for crossbred cattle in African small-holder systems. Genomic selection techniques that do not rely on pedigree information could, therefore, be a useful alternative. The objective of this ...

Author(s)
Brown, A.; Ojango, J.; Gibson, J.; Coffey, M.; Okeyo, M.; Mrode, R.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2016, 99, 9, pp 7308-7312
Abstract

Background: Smallholder dairy farming in much of the developing world is based on the use of crossbred cows that combine local adaptation traits of indigenous breeds with high milk yield potential of exotic dairy breeds. Pedigree recording is rare in such systems which means that it is impossible...

Author(s)
Strucken, E. M.; Al-Mamun, H. A.; Esquivelzeta-Rabell, C.; Gondro, C.; Mwai, O. A.; Gibson, J. P.
Publisher
BioMed Central Ltd, London, UK
Citation
Genetics, Selection, Evolution, 2017, 49, 67, pp (12 September 2017)
Abstract

Accurate diagnosis of pregnancy is an essential component of an effective reproductive management plan for dairy cattle. Indirect methods of pregnancy detection can be performed soon after breeding and offer an advantage over traditional direct methods in not requiring an experienced veterinarian...

Author(s)
Fosgate, G. T.; Motimele, B.; Ganswindt, A.; Irons, P. C.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2017, 145, pp 100-109
AbstractFull Text

Heat stress, as a consequence of global warming, can have a profound effect on dairy cattle in South Africa. In this paper, current milk production data of Holstein dairy herds on pasture in South Africa, together with climate variables related to heat stress, were used to model and identify...

Author(s)
Williams, R.; Scholtz, M. M.; Neser, F. W. C.
Publisher
South African Society of Animal Science, Hatfield, South Africa
Citation
South African Journal of Animal Science, 2016, 46, 4, pp 441-447
Abstract

The development of effective genetic evaluations and selection of sires requires accurate estimates of genetic parameters for all economically important traits in the breeding goal. The main objective of this study was to assess the relative performance of the traditional lactation average model...

Author(s)
Meseret, S.; Tamir, B.; Gebreyohannes, G.; Lidauer, M.; Negussie, E.
Publisher
Asian-Australasian Association of Animal Production Societies, Seoul, Korea Republic
Citation
Asian-Australasian Journal of Animal Sciences, 2015, 28, 9, pp 1226-1234
Abstract

A cross-sectional study was carried out in six sub-counties of Kiruhura district, South Western Uganda with the aim of assessing feed resource utilisation and dairy cattle productivity. Individual interviews using a semi structured questionnaire were conducted in seventy five households. The mean...

Author(s)
Tibezinda, M.; Wredle, E.; Sabiiti, E. N.; Mpairwe, D.
Publisher
Academic Journals, Lagos, Nigeria
Citation
African Journal of Agricultural Research, 2016, 11, 32, pp 2957-2967
Abstract

A cross-sectional study was conducted between July and December 2013 to characterise the dairy farming in Unguja island of Zanzibar in the United Republic of Tanzania. The study also assessed the effects of management on milk production. A total number of 203 dairy farmers were randomly selected...

Author(s)
Suleiman, T. S.; Mdegela, R. H.; Karimuribo, E. D.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2016, 28, 10, pp Article 174
Abstract

Most of agricultural data are collected for a long period of time and need high attention. If one record has not been recorded, then the data will become incomplete. In Ethiopia, agricultural researchers have often been challenged by incomplete data. Different simulation techniques with different...

Author(s)
Yabebal Ayalew; Sharma, M. K.; Aynalem Haile; Meseret Molla
Publisher
Indian Society of Agricultural Statistics, New Delhi, India
Citation
Journal of the Indian Society of Agricultural Statistics, 2015, 69, 1, pp 1-9
Abstract

This study focused on the use of antibiotics on small, medium and commercial-sized dairy farms in the central region of Zambia and its relationship to antibiotic resistance in Escherichia coli. A stratified random sample of 104 farms was studied, representing approximately 20% of all dairy farms in ...

Author(s)
Mainda, G.; Bessell, P. R.; Muma, J. B.; McAteer, S. P.; Chase-Topping, M. E.; Gibbons, J.; Stevens, M. P.; Gally, D. L.; Bronsvoort, B. M. deC.
Publisher
Nature Publishing Group, London, UK
Citation
Scientific Reports, 2015, 5, 1, pp 12439
Abstract

The aim of the study was to test three different hand-milking techniques ("pull down", "thumb in", and "full hand grip") and their effects on milk production and teat treatment. This is important since milk production in many tropical areas still rely on hand-milking. The study was carried out at a ...

Author(s)
Millogo, V.; Norell, L.; Ouédraogo, G. A.; Svennersten-Sjaunja, K.; Agenäs, S.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2012, 44, 5, pp 1017-1025

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