Effects of guanidinoacetic acid and complex antioxidant supplementation on growth performance, meat quality, and antioxidant function of broiler chickens

Abstract

BACKGROUND This study was conducted to evaluate the effects of adding guanidinoacetic acid (GAA), or complex antioxidant (CA), or their combination, in diets on the growth performance, carcass traits, meat quality, and antioxidant capacity of broilers. A total of 192 25‐day‐old broilers were assigned to a 2 × 2 factorial design including two dietary supplements at two different levels, in which the main effects were the addition of GAA (0 or 600 mg kg−1) and CA (0 or 150 mg kg−1). This trial lasted for 18 days. RESULTS Compared with the control group, the GAA group, CA group, and GAA + CA group, decreased feed conversion ratio by 7.02%, 6.58%, and 11.40%, respectively. Guanidinoacetic supplementation increased eviscerated yield, pH24h (P < 0.05). Complex antioxidant supplementation increased the a* values (P < 0.05). The combination of GAA and CA did not affect the carcass traits and meat quality. Guanidinoacetic acid alone and CA alone and combined with GAA and CA decreased the reactive oxygen species (ROS) level and malonaldehyde (MDA) content (P < 0.05), and the GAA + CA group had the lowest ROS level and MDA content of broilers. CONCLUSION Dietary supplementation of GAA, CA or their combination had beneficial effects on growth performance and breast antioxidant capacity, and the combination of GAA and CA could exert a synergistic effect in improving antioxidant capacity. © 2020 Society of Chemical Industry

Effects of Dietary Guanidinoacetic Acid on the Feed Efficiency, Blood Measures, and Meat Quality of Jinjiang Bulls

“…These outcomes are positive for the consumer. These results are similar to the effects of dietary GAA in Angus bulls (24), sheep (37)(38)(39), finishing pigs (1, 2), broiler chickens (33), and bullfrogs (35,36), demonstrating that supplementing GAA into the diet could produce effects similar for both ruminant and non-ruminant animals.…”

Guanidine acetic acid exhibited greater growth performance in younger (13–30 kg) than in older (30–50 kg) lambs under high-concentrate feedlotting pattern

“…Previous studies reported that dietary GAA addition (0, 0.6, 6 g/kg basal diet, day-old male broiler; 0, 0.6 g/kg basal diet, 25-day-old broiler; 0, 0.8, 1.2 g/kg basal diet, weaned pig; 0, 0.3, 0.6, 0.9 g/kg basal diet, finishing pig) presented beneficial effects on monogastric animals in terms of average daily gain (ADG), slaughter characteristics and carcass meat quality (7)(8)(9)(10). In ruminant animals, limited studies indicated that dietary GAA addition 0 or 0.6 g/kg basal diet improved growth performance, as well as ruminal fermentation, and apparent total tract nutrient digestibility in yearling Angus bulls with a mean body weight of 440 kg (11,12).…”

The combined impact of xylo-oligosaccharides and gamma-irradiated astragalus polysaccharides on the immune response, antioxidant capacity, and intestinal microbiota composition of broilers

“…Broilers are usually susceptible to oxidative stress because of improper feeding and management, which causes a large amount of oxygen free radicals ( ROS ) to accumulate in the body ( Zhao et al, 2021 ). Excessive ROS could cause adverse effects such as protein and lipid peroxidation, disrupting nucleic acid (e.g., DNA) functions, which could cause oxidative damage to tissues and cells.…”