The differentiation of live from dead sperms in fowl semen

A combined stain solution is made by dissolving 0.1 gm bromphenol blue and 0.2 gm nigrosin in 100 ml of a M/15 buffer solution of KH2PO4 and Na2HPO4 adjusted to pH 7.5. This staining solution was used to prepare stained fowl semen smears. Such smears give stable differentiation of live from dead sperms. The dead sperms are stained with a dark violet color while the live ones are not stained. © 1959 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.