Abstract
A 35-day experiment was conducted with a total of 105 rainbow trout (Oncorhynchus mykiss) with an average initial weight of 192.9 g, sampled over four time points (day 7, 14, 21, and 28) to study the relationship between respectively, δ13C in muscle, liver, and adipose fin and relative weight gain, when fed a diet based on plant C3 ingredients, with a lower level of δ13C compared to the baseline diet. From day 28 to 35, seven fish per tank were starved to investigate the effect of starvation on δ13C in muscle, liver, and the adipose fin. Relative weight gain (as a proxy for feed efficiency) significantly (P < 0.0001) affected δ13C in muscle and liver, respectively, implying that a diet with a lower natural abundance (compared to the baseline diet) can be used to phenotype feed efficiency. Moreover, the change in δ13C due to weight loss was considerable in liver (2.6‰), but only 1.7‰ in muscle under starvation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.