Attenuating effects of guanidinoacetic acid on preslaughter transport-induced muscle energy expenditure and rapid glycolysis of broilers

Poultry Science
L Y ZhangG H Zhou

Abstract

This study evaluated the effects of dietary guanidinoacetic acid (GAA) supplementation on growth performance, plasma variables, muscle energy status, glycolytic potential, and meat quality of broilers experiencing transport stress during the summer. A total of 320 28-day-old male Arbor Acres broilers were randomly allotted to 3 dietary treatments, including a GAA-free basal control diet (160 birds) and basal diet supplementation with 600 (80 birds) or 1,200 mg/kg (80 birds) GAA for 14 D. On the morning of day 42, after an 8-h fast, the birds fed basal diets were divided into 2 equal groups, and all birds in the 4 groups of 80 birds were transported according to the following protocols: 1) a 0.5-h transport of birds on basal diets (as a lower-stress control group), 2) a 3-h transport of birds on basal diets, and a 3-h transport of birds on basal diets supplemented with either 3) 600 or 4) 1,200 mg/kg GAA. The results revealed that dietary supplementation with GAA at 600 and 1,200 mg/kg for 14 D prior to slaughter did not affect growth performance, carcass traits, and most textural characteristics and chemical composition of the pectoralis major (PM) muscle (P > 0.05). In the GAA-free group, a 3-h transport increased the broiler ...Continue Reading

References

Feb 7, 2002·Journal of Agricultural and Food Chemistry·Hanne Christine BertramHenrik Jørgen Andersen
Mar 4, 2003·Journal of Applied Physiology·Jeffrey J BraultRonald L Terjung
May 6, 2008·Biochimica Et Biophysica Acta·Juan P BolañosAngeles Almeida
Mar 31, 2011·Amino Acids·Theo WallimannUwe Schlattner
Jun 27, 2014·Journal of Food Science and Technology·A M GurikarA S R Anjaneyulu
Oct 6, 2016·Poultry Science·Leonie JacobsFrank A M Tuyttens
Apr 25, 2018·The British Journal of Nutrition·Sayed Sadra Ale Saheb FosoulHeshmatollah Khosravinia

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