Morphological Variation of the Pituitary-interrenal Tissue of the Mullet Fish (Mugil cephalus) Reared in Different Habitats. | ||||
| Journal of Current Veterinary Research | ||||
| Volume 6, Issue 1, April 2024, Page 317-331 PDF (1.19 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jcvr.2024.352741 | ||||
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| Authors | ||||
| Amin Hassanin* ; Reham H. Awaad; Nazema S. Abdel-Megeid; Salah El Ballal | ||||
| Abstract | ||||
| The current study was designed to illustrate the histological variations of pituitary gland and interrenal tissue of mullet fish (Mugil cephalus) reared in fresh and marine waters. In this study, the pituitary gland of Mugil cephalus consisted of adenohypophysis and neurohypophysis. Three regions were observed in adenohypophysis, rostral pars distalis (RPD), proximal pars distalis (PPD) and pars intermedia (PI). There was no adrenal gland in Mugil cephalus resemble mammals but interrenal tissue and chromaffin cells were located in the wall of posterior cardinal vein in the head kidney. Light microscope and statically studies showed an increase in the square surface area of RPD including the surface areas of the prolactin (PRL) cells adrenocorticotrophs (ACTH cells) in adenohypophysis and interrenal tissue in the head kidney of the freshwater fish than marine fish. These results indicate the important role of prolactin, adrenocorticotropin and cortisol hormones in osmoregulation in the freshwater Mugil cephalus and help in stress and habitat adaptation. | ||||
| Keywords | ||||
| Morphological; Pituitary gland; Interrenal tissue; Mugil cephalus | ||||
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