Prediction of apparent, standardized, and true ileal digestible total and reactive lysine contents in heat-damaged soybean meal samples

J.C. Kim; B.P. Mullan; J.R. Pluske

doi:10.2527/jas.53819

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Prediction of apparent, standardized, and true ileal digestible total and reactive lysine contents in heat-damaged soybean meal samples

Journal article

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Prediction of apparent, standardized, and true ileal digestible total and reactive lysine contents in heat-damaged soybean meal samples

J.C. Kim, B.P. Mullan and J.R. Pluske

Journal of Animal Science, Vol.90(Supplement 4), pp.137-139

2012

DOI: https://doi.org/10.2527/jas.53819

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Abstract

Forty-two individually housed entire male pigs weighing 37.5 ± 0.15 kg (mean ± SEM) were used in a randomized block design having 7 dietary treatments (n = 6). The dietary treatments were 5 semisynthetic diets containing 350 g/kg of soybean (Glycine max) meal (SBM) with variable heat treatments (0, 7, 14, 21, and 28 min autoclaved at 135°C), a protein free (N-free) diet, and an enzymatically hydrolyzed casein (EHC) diet. Heat treatment linearly decreased (P < 0.001) total Lys content from 27.5 to 19.2 g/kg and reactive Lys content from 23.4 to 11.7 g/kg. Apparent, standardized, and true ileal digestible total and reactive Lys contents linearly decreased (P < 0.001) with increasing severity of heat treatment and were accurately predictable (P < 0.001) from total and reactive Lys content in heat-damaged SBM. These data indicate that excessive heat processing of SBM reduced both the content (P < 0.001) and digestibility (P < 0.001) of total and reactive Lys in SBM.

Details

Title: Prediction of apparent, standardized, and true ileal digestible total and reactive lysine contents in heat-damaged soybean meal samples
Authors/Creators: J.C. Kim (Author/Creator) - Agriculture and Food
B.P. Mullan (Author/Creator) - Agriculture and Food
J.R. Pluske (Author/Creator) - Murdoch University
Publication Details: Journal of Animal Science, Vol.90(Supplement 4), pp.137-139
Publisher: American Society of Animal Science
Identifiers: 991005546363707891
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.51 Dairy & Animal Sciences; 3.51.208 Poultry Nutrition
Web Of Science research areas: Agriculture, Dairy & Animal Science
ESI research areas: Plant & Animal Science