Apparent digestibility coefficient of protein and amino acids of acid, biological and enzymatic silage for Nile tilapia (Oreochromis niloticus) |
| |
| Authors: | R BORGHESI L PORTZ M OETTERER & JEP CYRINO |
| |
| Institution: | Departamento de Zootecnia/Não Ruminantes, Setor de Piscicultura, Universidade de São Paulo, São Paulo;; Centro de Ciências Agrárias, Biológicas e Ambientais, Universidade Federal do Recôncavo da Bahia, Bahia;; Departamento de Agroindústria, Alimentos e Nutrição, Universidade de São Paulo, São Paulo, Brazil |
| |
| Abstract: | Using the fish silage to partially replace proteic feedstuff in aquafeeds is an alternative to mitigate sanitary and environmental problems caused by the lack of adequate destination for fisheries residues. It would also lower feed costs, consequently improving fish culture profitability. However, using fish silages in aquafeeds depends on determination of its apparent digestibility coefficients (ADC). This work aimed to determining the ADC of crude protein and amino acids of acid silage (AS), biological silage (BS) and enzymatic silage (ES) for juvenile Nile tilapia (94.5 ± 12.7 g). The ADCCP was: 92.0%, 89.1% and 93.7% for AS, BS and SE respectively. The average ADC of amino acids was: 91.8%, 90.8% and 94.6% for AS, BS and ES respectively. Results encourage the use of AS, BS and ES to partially replace protein sources in balanced diets for neotropical fish. |
| |
| Keywords: | alternative ingredient amino acids by-products digestibility fish silage Oreochromis niloticus |
|
|
