为什么要在牛牛上开个洞？

MẸO! Click chuột phải và chọn "Save link as..." để tải xuống.

VIDEOS
MP4	N/A	480P	Tải xuống
MP4	N/A	480P	Tải xuống
MP4	N/A	480P	Tải xuống
MP4	N/A	360P	Tải xuống
MP4	N/A	360P	Tải xuống
MP4	N/A	360P	Tải xuống
AUDIO
MP4	N/A	mp4a.40.2	Tải xuống
MP4	N/A	mp4a.40.5	Tải xuống
MP4	N/A	mp4a.40.2	Tải xuống
THUMBNAILS
	JPEG	Origin Image	Tải xuống

参考：
https://www.bbc.com/news/world-europe-48718908
https://www.odt.co.nz/star-news/star-districts/star-selwyn/lincoln-uni-cows-used-cruel-and-barbaric-research
https://modernfarmer.com/2014/09/holey-cow-wonderful-world-fistulated-cow/
https://www.peta.org/blog/fistulated-cannulated-cows/
https://www.dailymail.co.uk/sciencetech/article-2635309/Hole-y-cow-Bizarre-images-reveal-farmers-monitoring-cows-eat-using-windows-sides.html
https://ansc.umd.edu/news/diving-deep-mystery-fistulated-cow是
https://www.youtube.com/watch?v=b7TY9t0VBxU
https://www.youtube.com/watch?v=-HWUNjO-Lvo
https://www.youtube.com/watch?v=ts-TiVDlRz4
https://www.youtube.com/watch?v=GbaE-fGHSkQ
https://www.youtube.com/watch?v=-ban6fHArBU