Tilapia farming is an important source of income in many countries, but these fish do not do well in cold water. When temperatures fall, tilapia grow more slowly and farmers can earn less during colder months.
Researchers from Egypt and the Philippines tested two common chewing-gum ingredients, lecithin and Arabic gum, as feed supplements. The additives helped regulate metabolism, enzyme levels and mineral balance, all of which change under cold stress. Fish that ate the supplemented diet showed better growth, higher survival and stronger antioxidant responses.
A co-author said the results offer a practical solution for farmers in colder areas, though more research is needed.
Difficult words
- metabolism — chemical processes in a living body
- enzyme — a protein that speeds up chemical reactions
- antioxidant — a substance that stops cell damage
- supplement — something added to food for extra benefitsupplements
- survival — the act of staying alive
- regulate — to control or keep something at a level
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Would you use a feed supplement if you farmed fish in a cold place? Why or why not?
- What problems can cold water cause for animals or plants you know?
- Do you think small food additives are a good way to help farmers? Explain briefly.
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