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Zerbini, E.Gemeda, T.Tegegne, AzageGebre-Wold, A.Franceschini, R.[Effects of work and diet on progesterone secretion, short luteal phases and ovulations without estrus in postpartum F1 crossbred dairy cows]Effects of work and diet on progesterone secretion, short luteal phases and ovulations without estrus in postpartum F1 crossbred dairy 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

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

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

The results of the research showed that hay intake was 10 percent greater in working compared to non working cows. Cows responded to underfeeding by a progressive adaptation until a new equilibrium between dietary supply and requirements was reached. However, in draught cows fed low quality rough...


Zerbini, E.Gemeda, T.[Effect of work on dry matter intake, milk production and reproduction of multipurpose cows fed low quality roughage]Effect of work on dry matter intake, milk production and reproduction of multipurpose cows fed low quality roughage

In Ethiopia, the use of crossbred cows for traction could improve total on-farm production by decreasing the need to maintain draft oxen year-round and a fallower herd to supply replacement oxen, provided that lactation and reproduction are kept at levels comparable to non-working cows. In a stud...


Zerbini, E.Gemeda, T.Gebre-Wold, A.Astatke, A.[Effect of draft work on lactation of F1 crossbred dairy cows]Effect of draft work on lactation of F1 crossbred dairy cows

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