title: Effects of Palygorskite Inclusion on the Growth Performance, Meat Quality, Antioxidant Ability, and Mineral Element Content of Broilers.
abstract: The present study was conducted to investigate different levels of palygorskite supplementation on the growth performance, meat quality, muscular oxidative status, and mineral element accumulation of broilers. One hundred ninety-two 1-day-old Arbor Acres broiler chicks were allocated to four dietary treatments with six replicates of eight chicks per replicate. Birds in the four treatments were given a basal diet supplemented with 0, 5, 10 and 20 g/kg palygorskite for 42 days, respectively. Compared with the control group, neither 5 g/kg nor 10 g/kg palygorskite inclusion affected growth performance of broilers during the 42-day study (P > 0.05). However, the highest level of palygorskite supplementation at 20 g/kg increased feed/gain ratio (F/G) of broilers (P < 0.001). Yellowness (P < 0.001) and redness (P = 0.003) of breast muscle and yellowness of leg muscle (P = 0.001) were decreased by palygorskite supplementation at the levels of 10 g/kg and especially 20 g/kg. In addition, redness of leg muscle was also reduced by the inclusion of 20 g/kg palygorskite (P = 0.009). In contrast, malonaldehyde (MDA) accumulation in the breast muscle was significantly increased by 20 g/kg palygorskite supplementation (P < 0.001). Supplementation of palygorskite at either 10 or 20 g/kg significantly decreased lead (Pb) accumulation in the breast (P = 0.001) or thigh (P = 0.045) and copper (Cu) accumulation in the breast (P = 0.022). In conclusion, growth performance, meat color, and antioxidant capacity of meat would reduce with the increasing level of palygorskite supplementation, whereas a higher level of palygorskite (10 or 20 g/kg) can alter mineral element accumulations in muscles as evidenced by reduced muscular Cu and Pb contents.
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, People's Republic of China.
authors.forename: Y F
authors.initials: YF
authors.lastname: Cheng
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, People's Republic of China.
authors.forename: Y P
authors.initials: YP
authors.lastname: Chen
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, People's Republic of China.
authors.forename: X H
authors.initials: XH
authors.lastname: Li
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, People's Republic of China.
authors.forename: W L
authors.initials: WL
authors.lastname: Yang
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, People's Republic of China.
authors.forename: C
authors.initials: C
authors.lastname: Wen
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, People's Republic of China. zhouym6308@163.com.
authors.forename: Y M
authors.initials: YM
authors.lastname: Zhou
mesh_terms: D000821:Animal Feed; D000818:Animals; D000975:Antioxidants / Q000378:metabolism*; D002645:Chickens / Q000254:growth & development*; D019587:Dietary Supplements; D017616:Magnesium Compounds / Q000494:pharmacology*; D008903:Minerals / Q000378:metabolism*; D017655:Silicon Compounds / Q000494:pharmacology*
chemical_list: D000975:Antioxidants; D017616:Magnesium Compounds; D008903:Minerals; D017655:Silicon Compounds; C026325:attapulgite
keywords: Broilers; Growth performance; Malondialdehyde; Meat color; Mineral element; Palygorskite