Our bulls are reared on the veld under harsh Karoo conditions. Only the very hardy are provided to our clients. You get what you see.

Kalant, sire of young bulls - in top 5% of breed in feed efficiency. Results below of Phase C test - Glen station.

Research has shown that a 10% improvement in feed efficiency can lead to 43% improvement in profit.

Apart from being in the top 5% for the breed in feed efficiency, the graph on the right shows Kalant is in the top 20% of calving ease, top 15% re 400 day growth and the top 5% for SB (Simmentaler Breeders) economic index.

Our young bulls from our Econotech Simmentaler Seedstock are really a showcase of consistent breeding. During the pre-mating season we took meticulous care in choosing the correct bull for every cow to be mated. Three of these bulls are still available, namely PJD1836 (Gert), PJD1910 (Potter) and PJD1912(De Ruyter). Their details are outlined below.

The outcome is most rewarding:

  • Fertility: One major breeding attribute for fertility is Scrotal Size (SS)(a sign of breeding early puberty under heifers). Two of our bulls, Gert and De Ruyter have EBV's for SS in the top 5% of the SA 2019 herd.

  • Calving Ease: Through out our seedstock operation high calving ease is considered as essential for our no-nonsense-extensive-farming-system. The three bulls are proof to this with EBV's for CED (calving ease direct) ranging from 5.3 (top 5%) to 4.4 (in the top 15% of the SA 2019 herd).

  • Growth: One has to consider the pros and cons of concentrating on growth regardless of other attributes or the other way round. We try to take a balanced approach with more emphasis on fertility and calving ease than any other factor. However, growth has not been neglected, but keeping to a medium frame animal. The three bulls have a range from Potter (EBV of 26 for 400 days and 30 for MCW), Gert (EBV of 27 for 400 days and 32 for MCW) to De Ruyter showing the most growth (EBV of 34 for 400 days and 45 for MCW).

  • One bull, Gert, is sired by Econotech Klein Kalant P (awarded a silver merit at Glen with a Net Feed Intake(NFI) of -0.401 – this was based on Kalant consuming 2.5 kg feed less than a similar size bull, but with both notching 2.3 kg mass gain per day over the Glen test period). This translates to an EBV for feed efficiency (NFI-P) of -0.11.  Gert should, therefore, have the same tendency for being feed efficient as his sire, Kalant. The other bulls have also, but to a lesser degree, feed efficient bulls in their ancestry. To us, struggling in the harsh Karoo, feed efficiency is the answer to scarce resources and the ravages of climate change.

  • Economic Indexes: The Simmentaler Breeders Index (SBI (R)) takes the economic contribution of all the relevant breeding attributes into account. According to the SBI the three bulls come out tops with indexes between 737 (top 5%) and 621 (top 10%). At the same time the bulls' SPI (an index measuring their contribution to cross-breeding) varies from 638 to 593 which are in the top 5%.

  • Polled factor: The polled factor is most important to us. Not only does it cut down on labour, but polled cattle are also more docile and therefor more efficient feeders. Two bulls, Gert and De Ruyter, are polled. These two may even be homozygous polled, having both their parents polled. 

  • These bulls are fully registered and their sires validated through DNA analysis.


In order to read the number of a specific bull and to get more info on its pedigree and graphs on breeding values, please CLICK on the specific photo.


Econotech Wolf, sold to Koos de Wet, Hopetown