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The white one is Dyana, female, she is 9 years old.
Chachis is Dyana's daughter
The biggest is daysy
all are females

Wow..chachis is the Dyana daughter?she has bigger body than her mother and they also have different colours,hasn't it?

Chachis is the same color and size as her dad, Boby. He died two years ago.

and here you can see the history of daysy, also named Cow:
https://steemit.com/animals/@el-chucky/the-cow-la-vaca
It was one of my first posts, then daisy is like the adopted sister of chachis