Evaluation of Dietary Palygorskite Supplementation on Growth Performance, Mineral Accumulations, Antioxidant Capacities, and Meat Quality of Broilers Fed Lead-Contaminated Diet

Abstract

The objective of this study was to evaluate influence of dietary palygorskite (Pal) supplementation on growth performance, mineral accumulations in the tissues (livers, kidneys, and muscles), antioxidant capacities, and meat quality of broilers fed lead (Pb)-contaminated diet. One-hundred forty-four male broiler chicks were randomly divided into three treatment groups, receiving a corn-soybean meal basal diet (the control group), the basal diet contaminated with 10 mg/kg Pb (the Pb group), and the basal diet with 10-g/kg Pal supplementation and 10-mg/kg Pb contamination (the Pal/Pb group) from 1 to 42 days of age, respectively. Treatments did not affect growth performance of broilers in the 42-day study (P > 0.05). Compared with the control group, Pb contamination increased Pb accumulation in the livers, kidneys, and muscles (P < 0.05); elevated malondialdehyde accumulation in the livers, kidneys, and breast muscles; glutathione peroxidase activity in the livers and superoxide dismutase activity in the kidneys (P < 0.05); exacerbated drip loss in the pectoralis muscles (P < 0.05); and reduced glutathione peroxidase activity in the pectoralis muscles (P < 0.05) of broilers at 42 days of age. The values of these parameters were reversed in the Pal/Pb group to levels comparable with those in the control group (P < 0.05). Additionally, Pal supplementation reduced redness value in the pectoralis muscles (P < 0.05), and decreased Cu concentration in the pectoralis muscles and livers at 42 days of age as well as its accumulation in the kidneys at both 21 and 42 days of age compared with the other two groups (P < 0.05). The results suggested that dietary Pal supplementation would decrease Pb residue in the tissues, alleviate oxidative stress, and affect meat quality of broilers exposed to Pb.

Modified Palygorskite Improves Immunity, Antioxidant Ability, Intestinal Morphology, and Barrier Function in Broiler Chickens Fed Naturally Contaminated Diet with Permitted Feed Concentrations of Fusarium Mycotoxins

“…Chickens were housed in a temperature-controlled room, and had free access to clean water and mash feed in the three-layer-wired cages (120 × 60 × 50 cm; 0.09 m 2 per bird), and continuous light in the housing room was provided. The temperature in the housing room was similar to that as reported in our previous studies [ 65 ].…”

Effects of dietary palygorskite supplementation on the growth performance, oxidative status, immune function, intestinal barrier and cecal microbial community of broilers

“…Zhang et al ( 2017 ) observed that although PAL inclusion increased ADFI and ADG in broilers, the elevated performance traits could be attributed to the enhanced pellet quality by the addition of PAL. Moreover, the growth performance of broilers and laying hens with mash feed was not affected by the addition of PAL in studies of Qiao et al ( 2015 ) and Cheng et al ( 2016 , 2018 ). These inconsistent results may be ascribed to the form of diet, animal species, and the dosage, source and type of PAL.…”

“…T-AOC considers an integrative index to reflect the level of several antioxidant enzymes and non-enzymatic biomolecules with the ability to scavenge free radicals (Wu et al, 2016 ). MDA, a decomposed product of lipid peroxidation, has been shown as a biomarker for oxidative stress (Cheng et al, 2018 ). The addition of PAL in the diet has been demonstrated to improve GPX and SOD activities, and thus promote antioxidant capacity in ducks (Wang et al, 2019 ) and broilers (Chen et al, 2016 ).…”

“…The fundamental properties for the wide application of PAL in feedstuffs are its large surface area, strong adsorption function, great exchangeability, and eco-friendly feature (Zhang et al, 2015 , 2020 ). Several studies performed on poultry have showed that the administration of PAL exerted positively effects on the growth performance (Wang et al, 2019 ), digestive function (Qiao et al, 2015 ), intestinal health (Chen et al, 2016 ), and product quality and safety (Cheng et al, 2018 ). In broilers, PAL has been widely adopted as either feed additive or feed raw material, and its optimal dosage is 10 g/kg (Zhang et al, 2017 ).…”

Copper/Zinc-Modified Palygorskite Protects Against Salmonella Typhimurium Infection and Modulates the Intestinal Microbiota in Chickens

“…Therefore, modified Pals are widely used in the veterinary field. A recent study found that dietary Pal addition could decrease lead residues in the tissues of broilers and alleviate oxidative stress ( Cheng Y. F. et al, 2018 ). In addition, the supplementation of quaternary ammonium derivative N-(2-hydroxy) propyl-3-trimethyl ammonium chito-oligosaccharide chloride modified Pal ameliorated adverse effects in chickens challenged with a low level of Fusarium mycotoxin contamination ( Cheng Y. et al, 2018 ).…”