The periodicity and duration of oestrus in zebu and grade cattle
Records are given for 1130 oestrous cycles in zebus and 678 cycles in grades. The mean length was 23·03 days in zebus and 22·42 days in grades. The...
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Studies on reproduction in cattle Part I The periodicity and duration of oestrus
It has been observed that Zebu cattle in East Africa appear to exhibit a seasonal fertility, in that fertile matings tend to occur more particularly...
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A contribution to the study of African native cattle
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The native cattle of Southern Rhodesia
Breed characteristics of native cattle of Zimbabwe are discussed. General historical background on origin, geographical distribution of the animals,...
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Apomixis in farmers fields Overview case studies from forage grasses and considerations for future apomictic crops