caa a22 4500 606230645 CHVBK 20210128101215.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10695-014-9989-5 doi (NATIONALLICENCE)springer-10.1007/s10695-014-9989-5 Hydroyeast Aquaculture® as a reproductive enhancer agent for the adult Nile tilapia ( Oreochromis niloticus Linnaeus, 1758) [Elektronische Daten] [Ahmed Mehrim, Fathy Khalil, Montaha Hassan] Tilapias are becoming increasingly popular culture fish because of their superior culture adaptability. In recent years, there has been a great interest in the use of probiotics in fish aquaculture. The objectives of the present study were to evaluate the effect of dietary graded levels (0, 5, 10, and 15g/kg commercial diet, referred to treatments numbers T1, T2, T3, and T4, for males and T5, T6, T7, and T8 treatments for females) of a new probiotic Hydroyeast Aquaculture® on hematological and biochemical parameters, serum sex hormones, and the reproductive efficiency parameters of the adult Nile tilapia Oreochromis niloticus for 8weeks. Results revealed that high levels of probiotics diet, 15g (T4, ♂) and 10g (T7, ♀) probiotic/kg diet, significantly (P≤0.05) enhanced the physiological responses (hematological as well as serum biochemical parameters) together with, reproductive performances (sex hormones, testes and sperm quality parameters, absolute and relative fecundity, and ovarian measurements). Therefore, it could be conclude that Hydroyeast Aquaculture® is useful at levels of 15g (T4) and 10g (T7)/kg diet in improving the reproductive efficiency of adult O. niloticus males and females, respectively. Thus, the use of Hydroyeast Aquaculture® may be economically important for fish hatcheries. Springer Science+Business Media Dordrecht, 2014 Nile tilapia nationallicence Probiotic nationallicence Adult nationallicence Reproduction nationallicence Sex hormones nationallicence Mehrim Ahmed Animal Production Department, Faculty of Agriculture, Al-Mansoura University, Al-Mansoura, Egypt aut Khalil Fathy Animal Production Department, Faculty of Agriculture, Al-Mansoura University, Al-Mansoura, Egypt aut Hassan Montaha Animal Production Department, Faculty of Agriculture, Al-Mansoura University, Al-Mansoura, Egypt aut Fish Physiology and Biochemistry Springer Netherlands 41/2(2015-04-01), 371-381 0920-1742 41:2<371 2015 41 10695 https://doi.org/10.1007/s10695-014-9989-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10695-014-9989-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mehrim Ahmed Animal Production Department, Faculty of Agriculture, Al-Mansoura University, Al-Mansoura, Egypt aut NATIONALLICENCE 700 1- Khalil Fathy Animal Production Department, Faculty of Agriculture, Al-Mansoura University, Al-Mansoura, Egypt aut NATIONALLICENCE 700 1- Hassan Montaha Animal Production Department, Faculty of Agriculture, Al-Mansoura University, Al-Mansoura, Egypt aut NATIONALLICENCE 773 0- Fish Physiology and Biochemistry Springer Netherlands 41/2(2015-04-01), 371-381 0920-1742 41:2<371 2015 41 10695