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A large volume of agro-industrial by-products and waste of good nutritional quality could be used in animal feed, thus reducing production costs. This study assessed the effect of different levels of tomato by-product in the rations of Japanese quails (Coturnix coturnix japonica) on the physical quality of the eggs. 120 birds were housed in a conventional shed with galvanised wire cages and movable side curtains. The treatments consisted of a reference diet, based on corn and soybean meal, and three rations with levels of 5, 10 and 15 % ST as a substitute for ground corn. The physical quality characteristics of the eggs were assessed (egg weight, percentage of yolk, albumen and shell, shell thickness, Haugh Unit, yolk index and colour).
About the author
Luciano i Maria Helena s¿ wyk¿adowcami zootechniki EBTT w Federalnym Instytucie Edukacji, Nauki i Technologii w Rondônii. Luciano ma dyplom zootechniki i tytü magistra produkcji zwierz¿cej na Uniwersytecie w Brazylii/Descalvado-SP. Maria Helena ma dyplom z literatury portugalskiej i angielskiej i jest studentk¿ programu magisterskiego w zakresie produkcji zwierz¿cej na Uniwersytecie w Brazylii.
