Yes we can use this plant as feed supplement. As this plant have very good hepatoprotective activity. We can use it as a powder or extract by incorporating it in feed.

This plant is not a common forages, but in arid and semi-arid areas it is used for livestock. We have a paper in press on this topics. Please see http://www.publish.csiro.au/paper/AN14023.htm

Best regards

thank you so much :)

The plant has been reported  as toxic to sheep and cattle because of its nitrate accumulation.

Dear colleague, the answer of this question depend of the aims and the kind of animals. İf you want to use as feed supplement no problem to incorporating it in feed. How said the colleagues they show hepatoprotective activity. From the other side you can find some results about the influence on the productivity like - daily milk and etc.

Dear Alex Atanasoff,

Hel;o, if those plant (milk thistle)  is used as a feed supplement for broiler rabbits? what do you think concerning the health status of rabbit and meat quality? any idea?...do you think is efficient or not? thank you ..... best regards :)

Please take a look at this useful RG link.

Article Effects of Silymarin (Silybum marianum) supplementation on m...

I try to use its flower for sheep but the researches showed toxicity