Thank you very much dear Ebrahim. However, as you can see in my question, I was asking not about management but about absorption/metabolism. Could you provide me with any data in this regard?
The physical form does not make a difference, but some points should be noted.
The first one is the dosage. The best results in terms of blood parameters are achieved by about 250 grams of Propylene glycol. Regardless of physical form, the concentration of the active ingredient should be noted.
The second one is that drenching usually is done once a day, but the powdered form can be mixed with diet, so even if you have the same amount, it will be delivered in a number of meals. This has the potential to affect blood glucose dynamics and insulin secretion.
Last but not least, you should consider the size of the herd and the duration of feeding Propylene glycol. Drenching is labor and time consuming, and the process can stress the animals.