How fat in fish food helps sturgeon moms grow baby eggs
Integrated metabolomic and transcriptomic analyses suggest that high dietary lipid levels facilitate ovary development through the enhanced arachidonic acid metabolism, cholesterol biosynthesis and steroid hormone synthesis in Chinese sturgeon (Acipenser sinensis)
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The 14% lipid diet led to higher oestradiol levels than both 10% and 18% diets (except at 24 months), despite not supporting full ovarian development.
This contradicts the assumption that higher sex hormones always mean better reproductive progress—here, more oestradiol didn’t lead to advanced ovary stages.
Practical Takeaways
For breeding programs of endangered sturgeon, use feed containing 18% lipid to maximize ovarian development.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The 14% lipid diet led to higher oestradiol levels than both 10% and 18% diets (except at 24 months), despite not supporting full ovarian development.
This contradicts the assumption that higher sex hormones always mean better reproductive progress—here, more oestradiol didn’t lead to advanced ovary stages.
Practical Takeaways
For breeding programs of endangered sturgeon, use feed containing 18% lipid to maximize ovarian development.
Publication
Journal
British Journal of Nutrition
Year
2019
Authors
X. Leng, Hai Zhou, Qingsong Tan, H. Du, Jinping Wu, Xu-fang Liang, Shan He, Q. Wei
Related Content
Claims (5)
Feeding female Chinese sturgeon a diet with 18% fat helps their ovaries mature fully over two years, but lower-fat diets don’t do the same — so more fat in their food might help these endangered fish reproduce better.
Female Chinese sturgeon on a high-fat diet have bigger egg cells with more fat stored inside them, which might help their eggs grow better early on.
Female Chinese sturgeon fed a high-fat diet with 18% lipids end up with more fat in their blood over time compared to those on lower-fat diets, which means their bodies are holding onto more fat when they eat more fat.
Feeding female Chinese sturgeon a diet with 18% fat might help their ovaries develop better by boosting key body processes that make yolk and support egg growth.
Eating fat from animal foods gives your body cholesterol that it needs to make important hormones, and it might also help keep your blood sugar and stress levels steady.