O.R. Madibela

Department of Animal Science and Production, Botswana College of Agriculture, Gaborone, Botswana

[ 1 ] - Reproductive Performance of Friesian-Holstein Cows at Sebele Research Station in South Eastern Botswana

Retrospective data from Sebele Dairy Farm were analysed for reproductive performance of Friesian/Holstein cows. Three hundred records from 1989 to 1995 were used. The herd was zero grazed and the data was analysed for age at first calving (AFC), calf birth weights (BW), calving interval (CI), days open (DO), calving rate (CR), reproductive wastage (RW) and calving difficulty (CD); dystocia, aft...

[ 2 ] - Dry Matter and Crude Protein Degradability ofMopane Worm (Imbrasia belina) in Rumen of Steers

Three cannulated Tswana steers were used to investigate the rumen degradability of mopane worm (Imbrasia belina) by measuring the amount of dry matter (DM) and crude protein (CP) disappearing at incubation periods up to 72 h. The effective degradability (ED) of DM and CP in the rumen was calculated at outflow rates of 0.03 / h (ED0.03) and 0.05 / h(ED0.05). Rumen degradable CP (RDP) was estimat...

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