The red heifer (פָרָה אֲדֻמָּה;) also known as the red cow, was a sacrificial cow brought to the priests according to the Hebrew Bible.
Its ashes were utilized in the ritual purification of Tum'at HaMet which refers to "the impurity of the dead" — i.e. an Israelite who had become unclean via contact with a corpse.
Well, the threads are reporting on efforts by the Temple Institute to breed a red heffier which have been successful paving the way for the advent of the third temple in Jerusalem.
That prophecy which states that the cow must be red “without blemish” makes no mention of animal husbandry utilizing various red angus embryos in pursuit of the that qualifying purification event for building the third temple. Inasmuch as the perfection of the Word of God is central to my understanding of scripture, I'm having issues with the utilization of technology to fulfill stated prophecy.
Specifically, I don't feel that The Almighty would have any need for in vitro processes whatsoever.