season of calving. Archives

Derivation of standard lactation curves for South African dairy cows

2003
Issue: 2
Volume: 33

B.E. Mostert, H.E. Theron and F.H.J. Kanfer Page: 70 - 77

2024-10-14
flickerleap

Standard Lactation Curves were derived for South African Holstein and Jersey cows, using twenty herd -, eighteen age - and six season classes. Six herd classes were below and 13 above the average production level for both breeds. A standard…

2001
Issue: 3
Volume: 31

B.E. Mostert, H.E. Theron and F.H.J. Kanfer Page: 205 - 214

2024-10-14
flickerleap

Lactation records of South African Holstein and Jersey cows were classified into six calving seasons and 18 age x lactation classes using several trials involving analysis of variance and estimation of fixed effects of calving age on test-day as well…