Descubre y comparte nuestro conocimiento público

Se han encontrado 12 recursos

Resultados de búsqueda

Animal traction in Ethiopia has been used since the third millennium B.C. Its use is confined to land preparation and seed covering using the traditional implement 'maresha' pulled mainly by a pair of oxen under a ridged neck yoke. Even though research to replace the 'maresha' and the multi-purpo...


Astatke, A.Gebresenbet, G.[Draft animal power and its research in Ethiopia]Draft animal power and its research in Ethiopia

This study examined whether work applied at different stages of lactation had any effect on reproduction of cows under two feeding regimes. Twenty-four F1 crossbred dairy cows (12 Friesian X Boran and 12 Simmental X Boran) were allocated one of two diets (H + 3: natural pasture hay + 3 kg concent...


Zerbini, E.Gebre-Wold, A.[Effect of work applied at different stages of lactation on milk production, reproduction and live-weight change of F1 crossbred dairy cows used for draught]Effect of work applied at different stages of lactation on milk production, reproduction and live-weight change of F1 crossbred dairy cows used for draught

The Oxylog, a portable breath-by-breath gas analyser, was used on seven animals to determine standing metabolic rate, energy cost of walking on soils of different consistencies and efficiency of work ploughing and carting. The average standing metabolic rate of animals was 5.63 (s.e. 0.12) W/kg M...


Fall, AbdouPearson, R.A.Lawrence, P.R.[Nutrition of draught oxen in semi-arid West Africa. 1. Energy expenditure by oxen working on soils of different consistencies]Nutrition of draught oxen in semi-arid West Africa. 1. Energy expenditure by oxen working on soils of different consistencies

A trial was carried out to assess the effect of liveweight and body condition on working capacity of Zebu oxen. Over a working period of 9 days, animals which started work with a mean liveweight of 360 kg and body condition score of M+ produced the highest daily work output. At an initial livewei...


Bartholomew, P.W.Khibe, T.Little, D.A.[Effect of liveweight and body condition on work output from draft oxen]Effect of liveweight and body condition on work output from draft oxen

A feeding system, draught cows, disease/work interactions and animal power introduction in a farming system are reviewed. A new feeding system for draught animals is described which enables feed requirements and the effects of work on liveweight and milk yield to be calculated. Recent data on the...


Pearson, R.A.Zerbini, E.Lawrence, P.R.[Recent advances in research on draught ruminants]Recent advances in research on draught ruminants

More effective control of the tsetse fly in Africa will reduce constraints imposed by the livestock disease, trypanosomiasis. Trypanosomiasis lowers livestock productivity, and in some areas, may limit the ability of farmers to keep livestock and plough the land using animal traction. Control of ...


Reid, Robin S.Wilson, C.J.Kruska, R.L.Mulatu, W.[Impacts of tsetse control and land-use on vegetative structure and tree species composition in south-western Ethiopia]Impacts of tsetse control and land-use on vegetative structure and tree species composition in south-western Ethiopia

Eighteen F1 crossbred dairy cows (Friesian X Boran and Simmental X Boran) were allocated to one of three diet groups (H: natural pasture hay; H + 3: natural pasture hay + 3 kg concentrate; and H + 5: natural pasture hay + 5 kg concentrate) using a stratified random sampling procedure, with parity...


Zerbini, E.Gebre-Wold, A.Demissie, D.[Effect of draught force and diet on dry-matter intake, milk production and live-weight change in non-pregnant and pregnant cows]Effect of draught force and diet on dry-matter intake, milk production and live-weight change in non-pregnant and pregnant cows

Forty pregnant crossbred cows (20 Holstein-Friesian X Boran and 20 Simmental X Boran) were assigned to a 2x2 (work X diet) factorial experiment as follows: supplemented-non-working (SNW), supplemented-working (SW), non-supplemented-non-working (NSNW) and non-supplemented-working (NSW). Working co...


Zerbini, E.Gemeda, T.Franceschini, R.Sherington, J.Gebre-Wold, A.[Reproductive performance of F1 crossbred dairy cows used for draught: Effect of work and diet supplementation]Reproductive performance of F1 crossbred dairy cows used for draught: Effect of work and diet supplementation

Forty-eight heifers of two genotypes, Boran (Bos indicus) and Holstein×Boran, were allocated to three feeding levels equivalent to 1.0, 1.2 and 1.4 times calculated metabolisable energy requirements for maintenance (MEm). The experiment started at the onset of reproductive activity, when the Bora...


Jenet, A.Fernández Rivera, S.Tegegne, AzageYimegnuhal, A.Osuji, P.O.Kreuzer, M.[Growth and feed conversion of Boran (Bos indicus) and Holstein X Boran heifers during three physiological states receiving different levels of a tropical diet]Growth and feed conversion of Boran (Bos indicus) and Holstein X Boran heifers during three physiological states receiving different levels of a tropical diet

Eighteen oxen were allotted to three treatment groups according to their body condition: poor, medium and good. Work output, speed, live weight and body condition were measured during 7 weeks when animals worked 4 days/ week, 4 h/day, pulling loads equivalent to 12.5 kg/100 kg live weight. The an...


Fall, AbdouPearson, R.A.Fernández Rivera, S.[Nutrition of draught oxen in semi-arid West Africa. 3. Effect of body condition prior to work and weight losses during work on food intake and work output]Nutrition of draught oxen in semi-arid West Africa. 3. Effect of body condition prior to work and weight losses during work on food intake and work output

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso