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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...
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...
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/...
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...
Cardio-respiratory and mechanical work output variables were measured for four F1 crossbred dairy cows (average weight 475 kg) over a range of work levels. Resting (standing prior to exercise) heart rates (average 62 beats per min) and respiratory rates (average 21 breaths per min) were similar t...
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...
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...
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...
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...
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