P4Gold array

A Very Brief History of Milk Progesterone Measurement

With the shift from using bulls to primarily using artificial insemination to cover cattle, there has been a corresponding push to develop accurate heat detection methods.  A mistimed AI can be expensive and, in the worst case scenarios, cause infection or pregnancy loss. Progesterone tests emerged as one of the best methods of heat detection, …

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A group of dairy calves

Artificial Insemination (AI) of Dairy Cattle

What is Artificial Insemination (AI)? Artificial Insemination, or AI, is the process of deliberate fertilisation of a female animal, by a human operator, using previously collected semen. It has been practised in many different species all over the world for over 60 years, from cows and other livestock, to dogs and horses. Some captive breeding …

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