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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

This paper presents the results of a comparative study conducted to characterize the oestrous phenonenon in Zebu and crossbred cattle and to determine oestrus detection using both androgenized cows and entire bulls. The study was conducted at ILRI Debre Zeit Research Station during the dry season...


Tegegne, AzageWitru, G.Mukasa-Mugerwa, E.Kassa, T.[Oestrus phenomenon and oestrus detection efficiency using androgenized cows and entire bulls in Boran and Boran x Friesian crossbred cows]Oestrus phenomenon and oestrus detection efficiency using androgenized cows and entire bulls in Boran and Boran x Friesian crossbred cows

Gondal and extragonadal sperm reserves were determined in testicular and epididymis tissues obtained from Boran and Boran X Friesian bulls fed either a high or low plane of nutrition diet for a one-year period. The bulls were 32 months of age at castration. Mean body weights did not differ betwee...


Tegegne, AzageDembarga, Y.Kassa, T.[Gonadal and extragonadal sperm reserves in Boran and Boran X Friesian bulls raised on two planes of nutrition in the highlands of Ethiopia]Gonadal and extragonadal sperm reserves in Boran and Boran X Friesian bulls raised on two planes of nutrition in the highlands of Ethiopia

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