Hereford Archives

Die invloed van ouderdom en produksiestatus van Afrikaner- en Herefordkoeie op die eienskappe van hul speenkalwers

1988
Issue: 1
Volume: 18

F.J.C. Swanepoel & H. Heyns Page: 47 - 52

2024-10-10
flickerleap

The effect of age and parity of Afrikaner and Hereford cows on the weaning traits of their calves. Data from a registered Hereford herd and a registered Afrikaner herd were used to investigate the influence…

2000
Issue: 3
Volume: 30

H. Skrypzeck, S.J. Schoeman, G.F. Jordaan and F.W.C. Neser Page: 220 - 229

2024-10-10
flickerleap

Data from a multibreed composite beef cattle population, managed under intensive irrigated grazing conditions, were used to estimate direct additive heritabilities (h2a), maternal heritabilities (h2m) and maternal permanent environmental effects (c2) birth weight (BW) and weaning weight (WW) of the…