[searcher95]

I just wondered why it's always bovine ovary, rather than say porcine ovary?

[Jem Jee]

I don't know the answer to your question, but porcine ovary does exist. You should be able to find it if you look hard enough.

[Zohra]

In the early days of this forum there were people here using porcine ovary. I remember seeing it mentioned.

[Georgie]

I think bovine ovary is cheaper, that's why.