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Kassa, T.Wirtu, G.Tegegne, Azage[Reproductive performance of crossbred dairy cattle under smallholder management conditions]Reproductive performance of crossbred dairy cattle under smallholder management conditions
Kassa, T.Tegegne, AzageShenkoru, T.[Factors affecting postpartum reproductive performance of cows under smallholder management in Ethiopia]Factors affecting postpartum reproductive performance of cows under smallholder management in Ethiopia
Afework, Y.Tegegne, AzageKassa, T.[Evaluation of the reproductive performance of crossbred dairy cows at the Asella livestock research station, Arsi, Ethiopia]Evaluation of the reproductive performance of crossbred dairy cows at the Asella livestock research station, Arsi, Ethiopia
Wirtu, G.Tegegne, AzageKassa, T.[Determination of accuracy of oestrus detection in zebu and crossbred cattle using plasma progesterone concentrations]Determination of accuracy of oestrus detection in zebu and crossbred cattle using plasma progesterone concentrations

An investigation was carried out into the behavioural and physical signs of oestrus in 70 Fogera cows and heifers between December 1993 and May 1994 at Metekel Cattle Breeding and Improvement Ranch, Ethiopia. Retrospective information generated from records made between 1991 and 1994 was evaluate...


Negussie, F.Kassa, T.Tibbo, Markos[Behavioural and physical signs associated with oestrus and some aspects of reproductive performance in Fogera cows and heifers]Behavioural and physical signs associated with oestrus and some aspects of reproductive performance in Fogera cows and heifers
Kassa, T.Tegegne, Azage[Reproductive performance of indigenous zebu and Friesian x Zebu crossbred cows under smallholder management conditions in Ethiopia]Reproductive performance of indigenous zebu and Friesian x Zebu crossbred cows under smallholder management conditions in Ethiopia

The major clinical diseases of crossbred dairy herds were investigated for two years in a milk shed in Addis Ababa. Animals in 38 herds were randomly selected and visited weekly. Diagnosis of diseases and causes of death were based on clinical observation. Disease conditions were categorized into...


Lema, M.Kassa, T.Tegegne, Azage[Clinically manifested major health problems of crossbred dairy herds in Urban and Periurban production systems in the central highlands of Ethiopia]Clinically manifested major health problems of crossbred dairy herds in Urban and Periurban production systems in the central highlands of Ethiopia

Prevalence of mastitis amongst dairy herds (n=725) and cows (n=2681) of Addis Ababa milk shed was investigated. California Mastitis Test (CMT) was conducted on milk samples from individual quarters. Of 10,908 quarters examined, prevalence of clinical mastitis (SCM), nonfunctional or blocked quart...


Kassa, T.Wirtu, G.Tegegne, Azage[Survey of mastitis in dairy herds in the Ethiopian central highlands]Survey of mastitis in dairy herds in the Ethiopian central highlands

The incidence of short luteal phases and ovulations without oestrus was investigated in 42 primiparous Borana cows. Based on calving body weight, cows were allocated to either a control group with grass hay only or to a supplement group with a concentrate ration. Within nutritional groups, cows w...


Tegegne, AzageGeleto, A.Kassa, T.[Short luteal phases and ovulations without oestrus in primiparous Borana (Bos indicus) cows in the central highlands of Ethiopia]Short luteal phases and ovulations without oestrus in primiparous Borana (Bos indicus) cows in the central highlands of Ethiopia

Ten Boran and 12 Boran X Friesian bulls with a mean (+standard error of the mean) age and body weight of 20.2+0.5 months and 225.5+2.5 kg were used over a 1 year period to determine the effect of plane of nutrition and season on body and testicular growth and on semen traits. Within genotype, bul...


Tegegne, AzageDembarga, Y.Kassa, T.Franceschini, R.[Effect of plane of nutrition and season on body and testicular growth and on semen characteristics in Boran and Boran X Friesian bulls in Ethiopia]Effect of plane of nutrition and season on body and testicular growth and on semen characteristics in Boran and Boran X Friesian bulls in Ethiopia

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