Affiliations 

  • 1 Department of Aquaculture, National Taiwan Ocean University, Keelung City, Taiwan
  • 2 Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung, Taiwan
  • 3 International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, Port Dickson, Negeri Sembilan, Malaysia
  • 4 Department of Aquaculture, National Taiwan Ocean University, Keelung City, Taiwan; Freshwater Aquaculture Research Center Chupei Station, Fisheries Research Institute, Ministry of Agriculture, Hsinchu, Taiwan. Electronic address: ipkuo@mail.tfrin.gov.tw
  • 5 Department of Aquaculture, National Taiwan Ocean University, Keelung City, Taiwan. Electronic address: leepotsang@email.ntou.edu.tw
Fish Shellfish Immunol, 2024 May 01;150:109597.
PMID: 38697373 DOI: 10.1016/j.fsi.2024.109597

Abstract

This study investigated the effects of fish protein hydrolysate derived from barramundi on growth performance, muscle composition, immune response, disease resistance, histology and gene expression in white shrimp (Penaeus vannamei). In vitro studies demonstrated FPH enhanced mRNA expressions of key immune-related genes and stimulated reactive oxygen species (ROS) production and phagocytic activity in shrimp hemocytes. To evaluate the effects of substituting fish meal with FPH in vivo, four isoproteic (43 %), isolipidic (6 %), and isoenergetic diets (489 kcal/100 g) were formulated with fish meal substitution levels of 0 % (control), 30 % (FPH30), 65 % (FPH65), and 100 % (FPH100). After 8-week feeding, the growth performance of FPH65 and FPH100 were significantly lower than that of control and FPH30 (p  0.05). The expressions of immune-related genes were analyzed at week 4 before and after challenge. In control group, V. parahaemolyticus significantly elevated SOD in hepatopancreas and Muc 19, trypsin, Midline-fas, and GPx in foregut (p  0.05). These findings suggest that FPH30 holds promise as a feed without adverse impacts on growth performance while enhancing the immunological response of white shrimp.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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