SID methionine+cystine levels and vitamin B6 supplementation on performance, blood parameters and metabolic enzymes gene expression of finishing barrows

• Published in: Journal of animal science Vol. 95; p. 202
• Main Authors: Sangali, C P, Castilha, L D, Fachinello, M R, Gasparino, E, Nunes, R V, Pozza, P C
• Format: Journal Article
• Language: English
• Published: Champaign Oxford University Press 01-08-2017
• Subjects: Amino acids; Blood; Blood levels; Cystine; Diet; Dietary supplements; Enzymes; G ratio; Gene expression; Homocysteine; Metabolism; Methionine; Vitamin B; Vitamin B6
• ISSN: 0021-8812; 1525-3163
• DOI: 10.2527/asasann.2017.410

An abstract of a study by Sangali et al evaluating the effects of dietary SID methionine+ cystine (Met+Cys) levels and vitamin B6 (B6) supplementation on performance, blood parameters and enzymes expression of finishing barrows is presented. SID Met+Cys requirement for barrows (75-100 kg BW) was 10.46 g/day and high levels of these amino acids increased the homocysteine blood concentration. Dietary supplemention of 3.58 mg B6/kg improved the F/G ratio but was not efficient to improve homocysteine metabolization by the trans-sulphuration pathway.