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
This paper attempts to highlight the major components of an established regional research consortium in South Asia, the operational difficulties, and proposed improvements needed in implementing this regional research. The components and the lessons learned from this mode of research will be very...
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
Gas production profiles were obtained from in vitro fermentation of stems of six genotypes of sorghum and millet grown at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), India. The ranking of sorghum and millet genotypes by cumulative gas production was consistent ...
Zerbini, E.
,
Sharma, A.
,
Rattunde, H.F.W.
,
[Fermentation kinetics of stems of sorghum and millet genotypes]
,
Fermentation kinetics of stems of sorghum and millet genotypes
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
Gas production profiles were obtained from in vitro fermentation of stems of six genotypes of sorghum and millet grown at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), India. The ranking of sorghum and millet genotypes by cumulative gas production was consistent ...
Zerbini, E.
,
Sharma, A.
,
Rattunde, H.F.W.
,
[Fermentation kinetics of stems of sorghum and millet genotypes]
,
Fermentation kinetics of stems of sorghum and millet genotypes
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...
Zerbini, E.
,
Gemeda, T.
,
O'Neill, D.H.
,
Howell, P.J.
,
Schroter, R.C.
,
[Relationships between cardio-respiratory parameters and draught work output in F1 crossbred dairy cows under field conditions]
,
Relationships between cardio-respiratory parameters and draught work output in F1 crossbred dairy cows under field conditions
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
The overall objective of this work was to investigate variation in grain yield (GY), stover yield (SY), fodder quality of stover and their association in sorghum and pearl millet. These relationships were investigated in India in 12 genotypes of sorghum and six genotypes of pearl millet grown und...
Blümmel, Michael
,
Zerbini, E.
,
Reddy, B.V.S.
,
Hash, C.T.
,
Bidinger, F.R.
,
Khan, A.A.
,
[Improving the production and utilization of sorghum and pearl millet as livestock feed: progress towards dual-purpose genotypes]
,
Improving the production and utilization of sorghum and pearl millet as livestock feed: progress towards dual-purpose genotypes