• Non-genetic factors affecting fertility traits in South African Holstein cows 

      Muller, C. J. C.; Potgieter, J. P.; Cloete, S. W. P. (Schalk Willem Petrus van der Merwe); Dzama, K. (South African Society for Animal Science, 2014-03-08)
      Profitable milk production and genetic improvement in dairy herds depend largely on fertile cows calving annually to initiate a new lactation period. Over the last 30 years, several studies have indicated a decline in the ...