Abstract
ABSTRACT Compensatory growth is a feeding management strategy well documented in the literature. However, the molecular and histological effects on fish still require further knowledge. This study determined the biometric, morphological, and histometric changes in adults of catfish (Lophiosilurus alexandri) after chronic fasting. Sixty adults (396.6 ± 77.5 g) were tagged with microchips and distributed in two tanks (n = 30/tank), one with normal feed and the other with total food restriction for 60 d and then refed for another 15 d. Tissue and biometric samples were taken on days 20, 40, 60 and 75. Fish reared under chronic fasting presented weight loss and had significantly lower intestinal villi height, goblet cells and muscularis thickness than those fed on a control diet. In summary, a chronic food restriction protocol can change morphology and the 15-d refeeding period was not enough to reestablish the morphological parameters and weight of L. alexandri.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
