The present invention is to provide a synchronous livestock feeding system (3), comprising a conveying trough, a blocking member, and several pivotal connection racks. The conveying trough comprises a trough body for receiving feed which is provided with an opening at top side. The blocking member is movably disposed above the conveying trough and has a bottom side wider than the trough body. The pivotal connection rack has one end pivotally connected to the trough body and the other end pivotally connected to the blocking member. Accordingly, when the blocking member is pushed toward a different direction, the pivotal connection racks may be pivoted and swung toward different directions, so as to enable the blocking member to ascend or descend in parallel relative to the trough body, thereby controlling whether the livestock can extend into the trough body from the opening to eat.本創作係提供一種家畜同步餵食系統(三),包含有一輸送槽、一阻隔件與若干樞接架,該輸送槽包含一用以容納飼料之槽體,該槽體頂側設有一開口,該阻隔件係可移動地置於該輸送槽上方,其底側之寬度係大於槽體之開口寬度,該樞接架之一端輸接該槽體、另端輸接阻隔件;藉此,將該阻隔件朝不同方向推動時,該樞接架係可朝不同方向樞轉、旋擺,用以使該阻隔件可平行相對槽體上升或下降,進而控制家畜可否自該開口伸入槽體內進食。10‧‧‧家畜同步餵食系統12‧‧‧輸送槽14‧‧‧阻隔件16‧‧‧樞接架