The modern science has discovered that the cattle's udder depends mainly on the blood supplied with the digested food products: Firth and blood, and indeed you have in cattle a lesson of what is in your stomachs.
Between Digestive Matter and Blood
The modern science has shown that the cattle's udder depends mainly on the blood supplied with the digested food products: "Between Firth and Blood, you have in cattle a lesson from what is in your bellies."
What all people see is that the udder gives milk...The Qur’an goes beyond this simple vision that anyone knows, and alerted us to the mechanism of milk formation, which is not seen by people, and is done through the blood supplied with the products of digested food: (peat, which is the grass chewed in the cow’s bellies), i.e. the nutrients in cow’s food that blood vessels transfer to the secretory cells of the farrow, which eventually turns it into milk.
Modern science has discovered that cattle's udder depends mainly on blood supplied with digested food products: Firtho This exact mechanism for the formation of milk was not discovered by humanity only in the modern era and was revealed by the Qur'an in this great verse how did the Prophet know that the formation of milk mainly needs blood supplied with products digesting Firth and without them does not form?
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Source: Dr. Mohamed Bourbab's official website - Published 2020-07-08 (archived at the Internet Archive)
https://bourbab.com/بين-فرث-و-دم/
