Comparison of amino acid digestibility coefficients for soybean meal, canola meal, fish meal, and meat and bone meal among 3 different bioassays

Poultry Science
E J KimC M Parsons

Abstract

The objective of this study was to determine amino acid digestibility of 4 feedstuffs [soybean meal (SBM), canola meal, fish meal, and meat and bone meal (MBM)] using the precision-fed cecectomized rooster assay (PFR), the standardized ileal assay (SIAAD), and a newly developed precision-fed ileal broiler assay (PFC). For the PFR, cecectomized roosters were precision-fed approximately 30 g of feed sample, and excreta were collected 48 h postfeeding. For the SIAAD, 16-d-old broilers were fed a semipurified diet containing the feed samples as the only source of protein from 17 to 21 d, with ileal digesta collected at 21 d. For the PFC, 22-d-old broilers were precision-fed 10 g of feed sample mixed with chromic oxide, and ileal digesta were collected at 4 h postfeeding. Digestibility coefficients were standardized using a nitrogen-free diet for the SIAAD and PFC and using fasted roosters for the PFR. There were generally no consistent differences in standardized amino acid digestibility values among assays, and values were in general agreement among assays, particularly for SBM and MBM. Differences did occur among methods for amino acid digestibility in fish meal; however, these differences were not consistent among methods or ami...Continue Reading

Citations

Jul 12, 2014·Poultry Science·S L VieiraJ O B Sorbara
Jul 20, 2014·Poultry Science·Paul J MoughanJ O B Sorbara
Mar 10, 2016·Asian-Australasian Journal of Animal Sciences·Zafar UllahMuhammad Sarwar
Feb 26, 2019·Poultry Science·D D S L BryanH L Classen
Mar 1, 2019·Scientific Reports·E RecoulesS Réhault-Godbert
Dec 17, 2020·Translational Animal Science·Antonio G BertechiniJose O B Sorbara
Aug 28, 2021·Animals : an Open Access Journal From MDPI·Shemil P MacellinePeter H Selle

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