غاز الميثان موجود في بطون الابقار ويسبب انتفاخ بطونها

Welcome to Prof. BIBA M'BAREK's YouTube channel. Educational science channel. BIBA M'barek, Professor of Life and Earth Sciences. Join this channel to benefit from exclusive advantages: /channel/UClrQBoeLdgyjvuFF8Q-Ey9A/join PDF lessons on our website: https://www.bibasvt.com https://www.facebook.com/profbibambarek https://www.instagram.com/bibasvt/ https://twitter.com/biologiebdarija

الفئة