Descubre y comparte nuestro conocimiento público

Se han encontrado 16 recursos

Resultados de búsqueda

Zerbini, E.Gemeda, T.Gebre-Wold, A.Tegegne, Azage[Effect of draught work on the metabolism and reproduction of dairy cows]Effect of draught work on the metabolism and reproduction of dairy cows

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

This paper presents and discusses the results of the IAR/ILRI (Institute of Agricultural Research/International Livestock Research Institute) Dairy-Draft Project study which was carried out to examine the performance of F1, Boran X Friesian crossbred cows both in terms of traction and milk, to ex...


Gebre-Wold, A.Mesgina, A.Shapiro, Barry I.[Animal traction and the potential for use of dairy cows in the Ethiopian highlands]Animal traction and the potential for use of dairy cows in the Ethiopian highlands

Forty pregnant F1 crossbred dairy cows (20 Friesian X Boran and 20 Simmental X Boran) were stratified in a 2x2 diet X work factorial experiment (not working-not supplemented, NWNS; not working-supplemented, NWS; working-not supplemented, WNS; and working-supplemented, WS). Working cows pulled sle...


Gemeda, T.Zerbini, E.Gebre-Wold, A.Demissie, D.[Effect of draught work on performance and metabolism of crossbred cows. 1. Effect of work and diet on body-weight change, body condition, lactation and productivity]Effect of draught work on performance and metabolism of crossbred cows. 1. Effect of work and diet on body-weight change, body condition, lactation and productivity

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

This study examined whether a prolonged anoestrus had any long-term effect on subsequent fertility of cows and estimated the relationship between repletion and resumption of reproductive activity. Twelve low body-condition, non-milking, non-cycling (depletion state) F1 crossbred dairy cows (Fries...


Zerbini, E.Gebre-Wold, A.Gemeda, T.[Effect of dietary repletion on reproductive activity in cows after a long anoestrous period]Effect of dietary repletion on reproductive activity in cows after a long anoestrous period

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

Twelve non-milking, non-cycling F1 crossbred dairy cows (Friesian x Boran and Simmental x Boran) in low body weight and body condition were stratified to 2 diets according to parity, body weight, body condition score and calving intervals to estimate time necessary to resume reproductive activity...


Zerbini, E.Gebre-Wold, A.Gemeda, T.Demissie, D.[Effect of supplementation of depleted, non-milking, non-cycling F1 crossbred cows on time of repletion and resumption of reproductive activity]Effect of supplementation of depleted, non-milking, non-cycling F1 crossbred cows on time of repletion and resumption of reproductive activity

Forty F1 crossbred dairy cows (20 Friesian X Boran and 20 Simmental X Boran) in a 2x2 factorial arrangement (not working-not supplemented, NWNS, not working-supplemented, NWS, working-not supplemented, WNS and working-supplemented, WS) were used to study the effect of work and diet supplementatio...


Zerbini, E.Gemeda, T.Gebre-Wold, A.Nokoe, S.Demissie, D.[Effect of draught work on performance and metabolism of crossbred cows. 2. Effect of work on roughage intake, digestion, digesta kinetics and plasma metabolites]Effect of draught work on performance and metabolism of crossbred cows. 2. Effect of work on roughage intake, digestion, digesta kinetics and plasma metabolites

To test the feasibility of the use of dairy cows for draft the International Livestock Research Institute (ILRI) and the Institute of Agricultural Research (IAR) in Ethiopia have studied a herd of F1 Friesien x Boran crossbred cows on-station over three years together with on-farm experiments an...


Zerbini, E.Gebre-Wold, A.Shapiro, Barry I.[The potential of cow traction in the East African highlands]The potential of cow traction in the East African highlands

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso