The reproductive performance, mothering ability and productivity of crossbred and Tswana beef cows in Botswana
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Light, D., Buck, N.G. and Sethola, L.L. 1982. The reproductive performance, mothering ability and productivity of crossbred and Tswana beef cows in Botswana. Animal Production 35: 421-426.
Permanent link to this item: http://hdl.handle.net/10568/67008
The calving rates, survival and growth of calves of Brahman (344), Bonsmara (454), Simmental (601) and Tuli (276) crossbred cows, and pure Tswana (405), were collected for a 7-year period, 1974-80. Calving and survival rates for calves were 0.90, 0.88, 0.87, 0.87 and 0.82; and 0.94, 0.93, 0.96, 0.94 and 0.93, for Simmental, Tuli, Brahman and Bonsmara crossbreds, and pure Tswana, respectively. Their differences were not significant (P < 0.05). Calves produced by Simmental male and Bonsmara female crossbred cows were significantly heavier than those from Brahman male and Tuli female crossbred cows (P