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Fitasio nelle diete dei polli da carne e sostituzione parziale di SBM e DCP
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ISBN10: 6208994748
ISBN13: 9786208994747
Publisher: Edizioni Sapienza
Published: Jul 1 2025
Pages: 160
Weight: 0.49
Height: 0.37 Width: 6.00 Depth: 9.00
Language: Italian
ISBN13: 9786208994747
Publisher: Edizioni Sapienza
Published: Jul 1 2025
Pages: 160
Weight: 0.49
Height: 0.37 Width: 6.00 Depth: 9.00
Language: Italian
L'aumento dei costi e la scarsità di mangimi ricchi di proteine ed energia per il pollame hanno spinto a ricorrere a risorse alternative per la sostituzione totale o parziale, al fine di ridurre i costi dell'alimentazione avicola. I sottoprodotti dell'industria agroalimentare, come la farina di girasole (SFM), la farina di cartamo (SAFFM) e la torta di til, sono stati considerati materie prime per la sostituzione parziale della costosa farina di soia (SBM) nell'alimentazione dei polli da carne. Questi prodotti contengono ANF come la fitina/fitati che legano la maggior parte dei nutrienti vitali come proteine, energia, Ca, P e altri oligoelementi, rendendoli biologicamente indisponibili. In secondo luogo, il DCP (fosfato bicalcico) è un altro ingrediente costoso utilizzato per fornire Ca e fosforo inorganico nelle diete del pollame. Un'alternativa più economica è il guscio d'ostrica/calcare, ma anche in questo caso il Ca è legato dagli ANF presenti in altri mangimi in assenza di fitasi. Secondo la documentazione, la fitasi è stata studiata per fungere da catalizzatore per liberare i nutrienti legati nella SFM, SAFFM e DCP al fine di ridurre i costi dell'alimentazione dei polli da carne. Sono state condotte tre prove con allevamenti identici di polli da carne con sostituzione parziale (20% del livello di miscelazione) di SBM insieme al 50% (1% del livello di miscelazione) di calcare.
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