Analysis of the Productivity, Immunity, and Health Performance of Nile Tilapia (Oreochromis niloticus) Broodstock-fed Dietary Fermented Extracts Sourced from Saccharomyces cerevisiae (Hilyses): A Field Trial

Animals

MahmoudA.O. Dawood¹  DaliaA. Abdel-Moneam²  NehalA. Younis²  NermeenM. Abu-Elala²  NaelaM. Ragaa³  AyaH. Hamdien⁴  TamerEl-Sayed Ali⁴  RehamM. Abd-Elsalam⁵  SaraE. Ali⁶  Melina Bonato⁷ 

[1] Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh 33516, Egypt;Department of Aquatic Animal Medicine and Management, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt;Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt;Department of Oceanography, Faculty of Science, Alexandria University, Alexandria 21568, Egypt;Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt;Department of Physiology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt;Research and Development, ICC Industrial Comércio Exportaçãoe Importação SA, São Paulo 01451-909, Brazil;

关键词: functional feed;    seeds;    production;    mortality;    growth;    immune response;   

DOI  :  10.3390/ani11030815

来源: DOAJ

【 摘 要 】

The present study aimed to evaluate the effect of dietary fermented extracts sourced from Saccharomyces cerevisiae (nucleotides, β-glucans and MOS) (Hilyses^®) on the production and health of Nile tilapia (Oreochromis niloticus) broodstock, as well as on seed survival and performance. The trial was performed in a hatchery along the spawning season and continued in the laboratory to monitor the performance in fry and fingerlings. The broodstock were divided into two groups, (C) fed a basal diet and (H) fed 0.4% Hilyses. Blood and histological parameters, antioxidant power, cortisol level and the expression of some immune-related (TLR-2, IL-1β and TNF-α) and growth-related genes (MUC-2 and IGF-1) were measured. The obtained seeds were subdivided into four treatments: (C-C) fed a basal diet, (C-H) fed 0.4% Hilyses, (H-C) fed a basal diet and (H-H) fed 0.4% Hilyses. Results revealed that the dietary inclusion of Hilyses in the broodstock increased seed production, survival, hematological parameters, and antioxidant power. Moreover, it improved the intestinal microstructure and upregulated the immune- and growth-related genes. The growth indices of fry and fingerlings were significantly increased in all Hilyses-treated groups (p < 0.05). The performance in the (H-H) group significantly surpassed those of all groups. Therefore, dietary fermented yeast could be used as a strategic solution to sustain tilapia production.

【 授权许可】

Unknown