[PGR88]

My great uncle, who grew up as, and lived his life as a dairyman, said one should always orient cows stalls North-South to get the highest milk production.

[ProtectOurFreedom]

That sounds ridiculous, so I Googled "do cows give more milk aligned north south and, sure enough, there's a lot of evidence that cows do sense magnetic and electric fields. One paper:

Cows: a big model for EMF research, somewhere between Vet-Journals and “Nature” by Maren Fedrowitz, Sep 05, 2014, Department of Pharmacology, Toxicology, and Pharmacy at the University of Veterinary Medicine, Hannover, Germany.

Some researchers report seeing cow and deer herds align N-S on Google satellite images!