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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

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

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 pregnant F1 crossbred dairy cows (20 Friesian x Boran and 20 Simmental x Boran) were stratified in a 2 x 2 Diet x Work factorial experiment (not working, not supplemented; not working, supplemented; working, not supplemented; and working, supplemented). Working cows pulled sledges 100 days/...


Gemeda, T.Zerbini, E.Gebre-Wold, A.Demissie, D.[Effect of work and diet on body weight change, body condition and lactation performance of F1 crossbred cows used for draught]Effect of work and diet on body weight change, body condition and lactation performance of F1 crossbred cows used for draught

The design and development of a reversible animal-drawn plough and a ridger is presented. The plough was developed on the basis of laboratory experiments reported earlier to determine optimum parameters for acurved implement. The basic design principles of conventional mouldboard ploughs and an a...


Gebresenbet, G.Zerbini, E.Astatke, A.Kaumbutho, P.[Optimization of animal drawn tillage implement systems: Part 2, Development of a reversible plough and a ridger]Optimization of animal drawn tillage implement systems: Part 2, Development of a reversible plough and a ridger

This discussion which is based on output/input ratios includes many factors which are likely to be extremely important in relation to the overall utilization of feed by multipurpose cattle. It compares different output/input ratios (biological efficiencies) for draught work, beef production, milk...


Zerbini, E.Gebre-Wold, A.[Output/input ratios in single and multipurpose cattle]Output/input ratios in single and multipurpose cattle

This paper deals briefly with the potential of cow traction in the Ethiopian highlands farming systems with particular reference to energy requirements and feeding and strategies. Examines cow energy requirements for work, maintainance, milk production, and pregnancy; and effect of draft work on ...


Zerbini, E.Asamenew, G.[Potential of cow traction in the Ethiopian highlands farming system]Potential of cow traction in the Ethiopian highlands farming system

Based on the promising results obtained from on-station, the cow traction study was further taken to on-farm for verification under the Ethiopian smallholder farmers management conditions. The study was undertaken in Holetta area between 1992 and 1996 by involving 14 farmers. Mean dairy milk yiel...


Alemayehu, M.Gebre-Wold, A.Tegegne, AzageZerbini, E.Larsen, C.[Dairy-draft on-farm performance of crossbred cows in Holetta area]Dairy-draft on-farm performance of crossbred cows in Holetta area

Forty F1 crossbred dairy cows, 20 Friesian x Boran and 20 Simmental x Boran, in a 2 x 2 factorial arrangement (non working-non supplemented, non working-supplemented, working-non supplemented, and working-supplemented) were used to study the effect of work and diet supplementation on roughage int...


Zerbini, E.Gemeda, T.Gebre-Wold, A.Demissie, D.[Effect of work and diet on dry matter intake, feed digestibility and nitrogen balance of F1 crossbred cows used for draught]Effect of work and diet on dry matter intake, feed digestibility and nitrogen balance of F1 crossbred cows used for draught

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