Frequently Asked Questions

What will the total cost be?

Embryo transfers is a costly exercise but a sound method to improve the quality of your breeding stock. The more embryos involved the lower the unit cost will be. Costs vary between countries. Please contact us for a quotation. For a Dorper embryo to reach you the following steps have to take place:

  • Obtaining an import permit indicating the amount of embryos to be imported
  • Flushing and freezing of the embryos
  • Leasing a flask and returning it to the vet. A flask accommodates more than 1000 embryos.
  • Obtaining an agent in the country to where the embryos are exported to receive and clear the embryos with customs
  • Arranging transportation of the flask to your country by air freight
  • Contracting a veterinary surgeon to perform the transfers. It is thus clear that the overhead costs is rather high. GLG is in a position to combined purchases of different clients resulting in a decrease in costs as the number of embryos imported affects the unit cost.

For a personal quote please contact us.

Will the lambs adapt to any given area?

Dorpers readily adapt to most climatic zones and thrives in the toughest of conditions. If you visit the ABOUT US link you will see that Dorsland Dorpers our main stud in S.A. is situated in the very center of South Africa. A semi arid area with relatively low rainfall, high temperature in summer (up to 45C ) and very cold winters (down to -10C). With these conditions in mind we are comfortable that our genetic material will adapt almost anywhere.

What is the success rate of transferring embryos?

On average a success rate of about 50% can be expected, but much higher figures have been obtained. The success rate of embryo transfers depends on prevailing conditions such as:

  • Physical conditions of the surrogate ewes
  • Stress factors
  • Accuracy of preparation of the surrogate ewes
  • Feeding conditions after transferring
  • Health condition of ewes
  • Quality of the embryos (company responsible for flushing the embryos)
  • Quality of the implants (person responsible for transferring the embryos)

There is a tendency to sell 2nd grade embryos. These embryos will most certainly have an impact on the success rate. GLG prides themselves in only supplying 1st grade embryos.

Why purchase your embryos from Global Livestock Genetics(GLG)?

GLOBAL LIVESTOCK GENETICS will be able to provide the total package. If you visit our GENETIC HISTORY link you will see that GLG is in possession of some of the very best genetic material which we are prepared to share with our clients. We pride ourselves in reliability, value for money and aftercare service.

  • We are able to assist our clients with the planning of their herd and the genetic qualities required in their stock.
  • We take care of the cumbersome process of exporting and importing embryos adhering to the strict regulations of AQIS ( and the regulations of the country concerned.

Why do we prefer dorper to white dorpers?

Most farmers find that DORPERS outperform White Dorpers. Studies done in Western Australia (2007) show Dorpers have an average of 3kg higher weaning weight than White Dorpers. This is probably due to less heat stress in the case of DORPERS seeing that they are better adapted to harsh conditions. The Dorper carries more pigment and thus having fewer skin problems, higher heat tolerance and less diseases.

Why Dorpers?

  • The adaptability of the Dorper enables it to flourish in most climates, from cold, rainy areas to drier regions with hot summer temperatures, where very few other types of farming are economically viable.
  • An excellent meat carcass with even fat distribution is the trademark of Dorpers – mature rams have a live mass of 100 to 120 kg and ewes one of 75 to 85 kg. The Dorper produces a large quantity of meat with little input.
  • Fast-growing lambs that can be marketed from the age of 3½ to 4 months when a live mass of 36 to 45 kg is reached.
  • High fertility rate and multiple births combined with ewes that are physically well-equipped for breeding and feeding over many years result in the ability to maintain a high level of production. It has a long breeding season with the possibility to have lambing intervals of eight months.
  • Pasture friendly grazers that eat less selectively than woolled sheep do and has a propensity to eat more unpalatable plants.
  • A resistance to disease and requiring little care. Dorpers do not require shearing, crutching, mulesing, jetting, nor constant monitoring for fly strike.
  • Dorper Sheep are intelligent and curious and can become very easy to handle with very little training

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