Effectiveness and optimum level of protected methionine in fattening pig diets

Background: Methionine (Met) requirements have not been clearly established for fattening pigs due to their metabolic interrelationships and its bioavailability for protein synthesis. Objective: To determine the optimum level of regular crystalline or protected Met in pig diets from nursery to finis...

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Main Authors:	José L. Figueroa-Velasco, David Trujano-San-Luis, José A. Martínez-Aispuro, María T. Sánchez-Torres, María M. Crosby-Galván, Agustín Ruíz-Flores, José L. Cordero-Mora
Format:	article
Language:	EN
Published:	Universidad de Antioquia 2020
Subjects:	bioavailability carcass traits growth performance nutrient requirements pig protected methionine protein swine synthetic amino acids urea Animal culture SF1-1100
Online Access:	https://doaj.org/article/acfec294d166466e96d34eae375b3b99
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spelling	oai:doaj.org-article:acfec294d166466e96d34eae375b3b992021-12-01T15:21:15ZEffectiveness and optimum level of protected methionine in fattening pig diets2256-295810.17533/udea.rccp.v33n4a02https://doaj.org/article/acfec294d166466e96d34eae375b3b992020-04-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/341774https://doaj.org/toc/2256-2958Background: Methionine (Met) requirements have not been clearly established for fattening pigs due to their metabolic interrelationships and its bioavailability for protein synthesis. Objective: To determine the optimum level of regular crystalline or protected Met in pig diets from nursery to finishing. Methods: A total of 48 crossbred pigs (11.74±1.72 kg of initial body weight) were used. The treatments consisted of adding four levels (0.00, 0.05, 0.10, 0.15% in addition to dietary content) and two types of Met (regular and protected) to pig diets. Results: Nursery, Finishing I, and II pigs fed protected Met increased daily feed intake (DFI; p≤0.10). Protected Met raised daily weight gain (DWG) in nursery pigs and increased backfat thickness (BT) in nursery and grower pigs (p≤0.10). In Finishing I pigs, protected Met increased DWG and improved carcass characteristics (p≤0.10). In nursery and grower pigs, an extra 0.15% Met decreased feed:gain ratio (FGR; p≤0.10). In grower and Finishing II pigs fed extra 0.05% Met improved DWG and extra 0.10% Met reduced plasma urea concentration (p≤0.10). Conclusions: Feeding protected Met in pig diets increases DWG, DFI and BT. Increasing 0.05-0.15% Met level improves FGR, DWG, potentially reducing nitrogen excretion to the environment.José L. Figueroa-VelascoDavid Trujano-San-LuisJosé A. Martínez-AispuroMaría T. Sánchez-TorresMaría M. Crosby-GalvánAgustín Ruíz-FloresJosé L. Cordero-MoraUniversidad de Antioquiaarticlebioavailabilitycarcass traitsgrowth performancenutrient requirementspigprotected methionineproteinswinesynthetic amino acidsureaAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 33, Iss 4, Pp 217-227 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	bioavailability carcass traits growth performance nutrient requirements pig protected methionine protein swine synthetic amino acids urea Animal culture SF1-1100
spellingShingle	bioavailability carcass traits growth performance nutrient requirements pig protected methionine protein swine synthetic amino acids urea Animal culture SF1-1100 José L. Figueroa-Velasco David Trujano-San-Luis José A. Martínez-Aispuro María T. Sánchez-Torres María M. Crosby-Galván Agustín Ruíz-Flores José L. Cordero-Mora Effectiveness and optimum level of protected methionine in fattening pig diets
description	Background: Methionine (Met) requirements have not been clearly established for fattening pigs due to their metabolic interrelationships and its bioavailability for protein synthesis. Objective: To determine the optimum level of regular crystalline or protected Met in pig diets from nursery to finishing. Methods: A total of 48 crossbred pigs (11.74±1.72 kg of initial body weight) were used. The treatments consisted of adding four levels (0.00, 0.05, 0.10, 0.15% in addition to dietary content) and two types of Met (regular and protected) to pig diets. Results: Nursery, Finishing I, and II pigs fed protected Met increased daily feed intake (DFI; p≤0.10). Protected Met raised daily weight gain (DWG) in nursery pigs and increased backfat thickness (BT) in nursery and grower pigs (p≤0.10). In Finishing I pigs, protected Met increased DWG and improved carcass characteristics (p≤0.10). In nursery and grower pigs, an extra 0.15% Met decreased feed:gain ratio (FGR; p≤0.10). In grower and Finishing II pigs fed extra 0.05% Met improved DWG and extra 0.10% Met reduced plasma urea concentration (p≤0.10). Conclusions: Feeding protected Met in pig diets increases DWG, DFI and BT. Increasing 0.05-0.15% Met level improves FGR, DWG, potentially reducing nitrogen excretion to the environment.
format	article
author	José L. Figueroa-Velasco David Trujano-San-Luis José A. Martínez-Aispuro María T. Sánchez-Torres María M. Crosby-Galván Agustín Ruíz-Flores José L. Cordero-Mora
author_facet	José L. Figueroa-Velasco David Trujano-San-Luis José A. Martínez-Aispuro María T. Sánchez-Torres María M. Crosby-Galván Agustín Ruíz-Flores José L. Cordero-Mora
author_sort	José L. Figueroa-Velasco
title	Effectiveness and optimum level of protected methionine in fattening pig diets
title_short	Effectiveness and optimum level of protected methionine in fattening pig diets
title_full	Effectiveness and optimum level of protected methionine in fattening pig diets
title_fullStr	Effectiveness and optimum level of protected methionine in fattening pig diets
title_full_unstemmed	Effectiveness and optimum level of protected methionine in fattening pig diets
title_sort	effectiveness and optimum level of protected methionine in fattening pig diets
publisher	Universidad de Antioquia
publishDate	2020
url	https://doaj.org/article/acfec294d166466e96d34eae375b3b99
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Effectiveness and optimum level of protected methionine in fattening pig diets

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