the meaning of blood sacrifice

If you think that the above image, showing several slaughtered sheep hanging over a pool of their own blood, is offensive; what would you think if I could somehow include the awful stench of that place where mass killing of animals routinely occurs, with this image?  I have never visited a real slaughterhouse.  But I imagine it would be an unforgettable, stomach-turning experience.

Under the economy and the Covenant of the Old Testament, the Temple in Jerusalem was a large-scale slaughterhouse, and the priests--in their lily-white garments, were full-time butchers.