hatching eggs inspection apparatus, carry-section (2), hatching eggs are checking unit judges is whether or not life and death such as the unfertilized egg and development stop eggs and (3), to be unfertilized egg, etc. judgment elimination unit to eliminate a hatching egg that is (4), and a carry-out unit for feeding toward the next step (5) the hatching eggs. The inspection unit (3), the light emitting unit for irradiating a predetermined light toward the hatching eggs (11), a cap attachment portion through which light transmitted through the hatching egg is irradiated to hatching eggs (16), a cap mounting portion ( light receiving portion and (22) are provided for receiving light passing through the 16). Cap mounting portion (16) includes a cylindrical cap which contacts the hatching eggs (20), and a plate (17) which is attached to the cap (20) is slidably held by the guide rail (21) .種卵検査装置は、搬入部(2)と、種卵が未受精卵や発育中止卵であるか否かの生死等を判定する検査部(3)と、未受精卵等であると判定された種卵を排除する排除部(4)と、種卵を次の工程へ向けて送り出す搬出部(5)とを備えている。検査部(3)には、種卵に向けて所定の光を照射する発光部(11)と、種卵に照射されて種卵を透過した光が通過するキャップ装着部(16)と、キャップ装着部(16)を通り抜けた光を受光する受光部(22)とが設けられている。キャップ装着部(16)は、種卵に接触する筒状のキャップ(20)と、そのキャップ(20)を装着させるプレート(17)とを備えて、ガイドレール(21)にスライド可能に保持される。
