Availability of minerals in rendered meat and bone meal for Nile tilapia: Preliminary observations. (14th October 2017)

• Record Type: Journal Article
• Authors: de Moura, L. B.; Xavier, T. O.; Campelo, D. A. V.; Michelato, M.; Alves de Almeida, F. L.; Vidal, L. V. O.; Furuya, W. M.
• Is Part Of: Aquaculture nutrition. Volume 24:Number 3(2018)
• Page Start: 991
• Page End: 997
• Publication Date: 2017-10-14
• Subjects: animal by‐products -- antagonism -- calcium -- correlation -- Oreochromis niloticus -- phosphorus; Aquaculture -- Periodicals; Aquatic animals -- Feeding and feeds -- Periodicals; Fishes -- Feeding and feeds -- Periodicals; 639.3
• DOI: 10.1111/anu.12635
• Languages: English
• ISSNs: 1353-5773

Abstract

Abstract: A digestibility trial was conducted with 180 Nile tilapia (32.65 ± 4.52 g) fed a reference diet containing 350 g/kg crude protein and 4, 500 kcal/kg gross energy. Five different meat and bone meals (MBMs) were evaluated. The test diets compound by 70% of reference diet and 30% of each MBM were elaborated and classified according to ash content: MBM‐430, MBM‐400, MBM‐370, MBM‐340 and MBM‐310. The apparent availability coefficient (AAC) of minerals and the apparent digestibility coefficient (ADC) of dry matter (DM) were subjected to one‐way analysis of variance ( p < .05). Differences among ADC and AAC were determined by Tukey's multiple range test ( p < .05). When appropriate, a polynomial regression analysis was performed. Linear correlation analyses between MBM chemical composition and the AAC and ADC were performed ( p < .01). Higher values of ADCDM, AACC a and AACP were observed in MBM‐310, while low values were observed in MBM‐430. Quadratic effects of ash, P and Ca contents on AACC a, AACP and ADCDM were observed. The AACC a, AACP and ADCDM indicated a negative correlation with ash, P and Ca contents. MBM‐310 exhibited the highest mineral AAC, which could be used as a mineral source for Nile tilapia.