The following shiur was delivered by Rabbi Shloime Pollak, Daf Yomi maggid shiur at the Sterling Forest Beis Medrash inLakewood.
In 1950 The Chazon Ish zt”l ruled that animals have the same halachic requirements as birds and one cannot begin eating a species of animal, wild or domestic, without a tradition that this specific “type” is Kosher…
The Chazon Ish explained that this prohibition was what the Shach in Yora Deah 80:1 meant, and he disagreed with the way the Pri Megadim read the Shach.
Here is a discussion of those two explanations of the Shach’s wording and a third option…
CLICK BELOW TO WATCH:
{Matzav.com Newscenter}
Would be helpful to those who can’t get youtube to put it on the website in a downloadable form such as mp3
Wondering why some assume messora started in medieval Europe and that the cattle indigenous to the middle east, which was certainly eaten by tanna’im, amora’im, and all Shivtei Yisroel at the time of Matan Torah is outside of messora.
http://www.touregypt.net/featurestories/cattle.htm
http://www.sciencedaily.com/releases/2014/03/140328121025.htm