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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

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

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