An investigation of the histological and ultrastructural changes of Sertoli cells during the male reproductive cycle in Piaractus mesopotamicus was made. The results showed that the Sertoli cell ...
The northern Brazilian state of Maranhão covers a total area of 331,983.29 km 2 (Brasil, 2002; Porto et al., 2019), which encompasses phytogeographic and climatological features that reflect the ...
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