Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top Diet

Glycerin has a similar energy value to corn and can partially replace it. However, there is a need to find the ideal level for using glycerin in pig feed without negatively interfering with performance parameters. The objective of this study was to determine the digestibility of glycerin through a m...

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Main Authors: Rafaeli Gonçalves Leite, Alexandre de Oliveira Teixeira, Charles Kiefer, Ana Paula Silva Ton, Maicon Sbardella, Claudson Oliveira Brito, Leonardo Willian de Freitas, Anderson Corassa
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/15/10/1387
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author Rafaeli Gonçalves Leite
Alexandre de Oliveira Teixeira
Charles Kiefer
Ana Paula Silva Ton
Maicon Sbardella
Claudson Oliveira Brito
Leonardo Willian de Freitas
Anderson Corassa
author_facet Rafaeli Gonçalves Leite
Alexandre de Oliveira Teixeira
Charles Kiefer
Ana Paula Silva Ton
Maicon Sbardella
Claudson Oliveira Brito
Leonardo Willian de Freitas
Anderson Corassa
author_sort Rafaeli Gonçalves Leite
collection DOAJ
description Glycerin has a similar energy value to corn and can partially replace it. However, there is a need to find the ideal level for using glycerin in pig feed without negatively interfering with performance parameters. The objective of this study was to determine the digestibility of glycerin through a mixture (MIX) or inserted on top of feed (ONTOP) using chromium indicator (Cr) and total collection (TC) methods. Ten barrows weighed 42.63 ± 4.23 kg in a 2 × 2 + 1 factorial scheme, with two forms of inclusion of the test ingredient (MIX or ONTOP), two digestibility methods (Cr or TC), and a basal diet (BD). The experimental design was completely randomized, and the evaluation period was used as split-plots, with two repetitions per period, totaling four repetitions per diet. The DE and ME values for glycerin were 3443 and 3356 kcal/kg (by the TC method) and 3411 and 3293 kcal/kg (by the Cr method), respectively (<i>p</i> < 0.05). There was no difference in MIX or ONTOP (<i>p</i> > 0.05), except for the digestibility coefficient (DC) of ethereal extract (<i>p</i> < 0.05). The DC and energy values obtained by Cr were lower than those obtained by TC. The inclusion of the test ingredients in the MIX and ONTOP forms did not present any difference, whereas Cr depreciated the nutritional value of glycerin for pigs.
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spelling doaj-art-21851e0e89ce42bb8d5f95187e0ce87a2025-08-20T01:56:57ZengMDPI AGAnimals2076-26152025-05-011510138710.3390/ani15101387Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top DietRafaeli Gonçalves Leite0Alexandre de Oliveira Teixeira1Charles Kiefer2Ana Paula Silva Ton3Maicon Sbardella4Claudson Oliveira Brito5Leonardo Willian de Freitas6Anderson Corassa7Agrarian and Environmental Sciences Institute, Federal University of Mato Grosso, Sinop 78550-000, BrazilDepartment of Animal Science, Federal University of São João del-Rei, São João del-Rei 36307-352, BrazilVeterinary and Animal Science Department, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, BrazilAgrarian and Environmental Sciences Institute, Federal University of Mato Grosso, Sinop 78550-000, BrazilAgrarian and Environmental Sciences Institute, Federal University of Mato Grosso, Sinop 78550-000, BrazilAnimal Science Department, Federal University of Sergipe, São Cristovão 40035-530, BrazilAgrarian and Environmental Sciences Institute, Federal University of Mato Grosso, Sinop 78550-000, BrazilAgrarian and Environmental Sciences Institute, Federal University of Mato Grosso, Sinop 78550-000, BrazilGlycerin has a similar energy value to corn and can partially replace it. However, there is a need to find the ideal level for using glycerin in pig feed without negatively interfering with performance parameters. The objective of this study was to determine the digestibility of glycerin through a mixture (MIX) or inserted on top of feed (ONTOP) using chromium indicator (Cr) and total collection (TC) methods. Ten barrows weighed 42.63 ± 4.23 kg in a 2 × 2 + 1 factorial scheme, with two forms of inclusion of the test ingredient (MIX or ONTOP), two digestibility methods (Cr or TC), and a basal diet (BD). The experimental design was completely randomized, and the evaluation period was used as split-plots, with two repetitions per period, totaling four repetitions per diet. The DE and ME values for glycerin were 3443 and 3356 kcal/kg (by the TC method) and 3411 and 3293 kcal/kg (by the Cr method), respectively (<i>p</i> < 0.05). There was no difference in MIX or ONTOP (<i>p</i> > 0.05), except for the digestibility coefficient (DC) of ethereal extract (<i>p</i> < 0.05). The DC and energy values obtained by Cr were lower than those obtained by TC. The inclusion of the test ingredients in the MIX and ONTOP forms did not present any difference, whereas Cr depreciated the nutritional value of glycerin for pigs.https://www.mdpi.com/2076-2615/15/10/1387alternative foodbiodiesel co-productdigestibilityglycerolmetabolizable energy
spellingShingle Rafaeli Gonçalves Leite
Alexandre de Oliveira Teixeira
Charles Kiefer
Ana Paula Silva Ton
Maicon Sbardella
Claudson Oliveira Brito
Leonardo Willian de Freitas
Anderson Corassa
Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top Diet
Animals
alternative food
biodiesel co-product
digestibility
glycerol
metabolizable energy
title Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top Diet
title_full Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top Diet
title_fullStr Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top Diet
title_full_unstemmed Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top Diet
title_short Nutritional Value of Glycerin for Pigs Fed a Mixture or an On-Top Diet
title_sort nutritional value of glycerin for pigs fed a mixture or an on top diet
topic alternative food
biodiesel co-product
digestibility
glycerol
metabolizable energy
url https://www.mdpi.com/2076-2615/15/10/1387
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