Factors affecting birth weights of the Boran cattle in Tanzania

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dc.creatorMpiri, D.B.
dc.creatorMpiri, M.T
dc.creatorRobison, O.W.
dc.date1987
dc.date2015-06-05T12:17:53Z
dc.date2015-06-05T12:17:53Z
dc.date.accessioned2026-06-27T18:59:02Z
dc.descriptionBirth weights of 1,030 Boran calves born between 1961 and 1979 at Malya Livestock Research Center in Tanzania were analysed to obtain means and study factors affecting this trait over the years under study and to estimate correction factors for effect of season and sex of calf. Also determined were heritability estimates from sire and dam components of variance. Last squares mean birth weights for Period I (1963-1969) and Period II (1970-1979) were 26.0± .5 and 25.4±7 respectively. Heritability estimates used on paternal half sibs were 0.33±0.12 and 0.18± 0.13, for periods I and II respectively. Year, season, sire, dam and sex effects were highly significant (P
dc.identifierhttps://hdl.handle.net/10568/66826
dc.identifier.urihttp://hdl.handle.net/123456789/167329
dc.languageen
dc.rightsOpen Access
dc.sourceMpiri, D.B., Mpiri, M.T and Robison, O.W. 1987. Factors affecting birth weights of the Boran cattle in Tanzania. Bulletin of Animal Health and Production in Africa 35(2): 154-159.
dc.subjectcattle
dc.subjectcalves
dc.subjectseasons
dc.subjectsex
dc.subjectbirth weight
dc.subjectdams
dc.titleFactors affecting birth weights of the Boran cattle in Tanzania
dc.typeJournal Article

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