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Bioavailability evaluation of zinc-bearing palygorskite as a zinc source for broiler chickens
https://orcid.org/0000-0001-7844-542X
Abstract The aim of the present study was to evaluate the bioavailability of zinc-bearing palygorskite (Zn-Pal) in broilers. A total of 432 one-day-old Arbor Acres broilers were randomly assigned to nine groups administered different dietary treatments for 42days. The broilers were fed a basal diet supplemented with 0, 20, 40, 60 or 80mg/kg of Zn in the form of either feed-grade ZnSO4 or Zn-Pal, respectively. The growth performance was not affected by the addition of Zn (P >0.05). At 21days of age, the content of Zn in the blood of broilers fed diets supplemented with Zn-Pal was higher than that of broilers fed diets supplemented with ZnSO4 (P <0.01). A dose-dependent response was observed between the supplemental Zn level and the Zn content in the tibia in both the starter (1–21days) and grower periods (22–42days, P <0.01). The maximal Zn content was observed in the pancreas and tibia of broilers fed 80mg/kg of Zn as ZnSO4 or 60mg/kg of Zn as Zn-Pal. The broilers fed 80mg/kg of Zn as either ZnSO4 or Zn-Pal had the highest Zn content in the breast muscle (P <0.05). At 42days of age, the contents of Zn in the pancreas, tibia and breast muscle increased with supplemental Zn levels (P <0.01). Zn-Pal increased the Zn content in the tibia compared with ZnSO4 (P <0.05). At 21days of age, the relative biological values (RBVs) of Zn-Pal were 109.64%, 100% and 100%, as determined using the contents of Zn in the pancreas, tibia and breast muscle, respectively, as response parameters. At 42days of age, the RBVs of Zn-Pal were 86.32% and 119.55% based on the contents of Zn in the pancreas and tibia. It was concluded that Zn-Pal had a higher bioavailability than ZnSO4 in broiler diets. The optimal level of supplemented Zn for broilers was 60mg/kg in the form of Zn-Pal.
Graphical abstract Display Omitted
Highlights Palygorskite could be used to prepare zinc-bearing palygorskite (Zn-Pal). Zn-Pal had a higher bioavailability than ZnSO4. The optimal level of Zn supplementation was 60mg/kg as Zn-Pal for broilers. Zn-Pal has potential to be used as a novel Zn source in animal nutrition.
Bioavailability evaluation of zinc-bearing palygorskite as a zinc source for broiler chickens
https://orcid.org/0000-0001-7844-542X
Abstract The aim of the present study was to evaluate the bioavailability of zinc-bearing palygorskite (Zn-Pal) in broilers. A total of 432 one-day-old Arbor Acres broilers were randomly assigned to nine groups administered different dietary treatments for 42days. The broilers were fed a basal diet supplemented with 0, 20, 40, 60 or 80mg/kg of Zn in the form of either feed-grade ZnSO4 or Zn-Pal, respectively. The growth performance was not affected by the addition of Zn (P >0.05). At 21days of age, the content of Zn in the blood of broilers fed diets supplemented with Zn-Pal was higher than that of broilers fed diets supplemented with ZnSO4 (P <0.01). A dose-dependent response was observed between the supplemental Zn level and the Zn content in the tibia in both the starter (1–21days) and grower periods (22–42days, P <0.01). The maximal Zn content was observed in the pancreas and tibia of broilers fed 80mg/kg of Zn as ZnSO4 or 60mg/kg of Zn as Zn-Pal. The broilers fed 80mg/kg of Zn as either ZnSO4 or Zn-Pal had the highest Zn content in the breast muscle (P <0.05). At 42days of age, the contents of Zn in the pancreas, tibia and breast muscle increased with supplemental Zn levels (P <0.01). Zn-Pal increased the Zn content in the tibia compared with ZnSO4 (P <0.05). At 21days of age, the relative biological values (RBVs) of Zn-Pal were 109.64%, 100% and 100%, as determined using the contents of Zn in the pancreas, tibia and breast muscle, respectively, as response parameters. At 42days of age, the RBVs of Zn-Pal were 86.32% and 119.55% based on the contents of Zn in the pancreas and tibia. It was concluded that Zn-Pal had a higher bioavailability than ZnSO4 in broiler diets. The optimal level of supplemented Zn for broilers was 60mg/kg in the form of Zn-Pal.
Graphical abstract Display Omitted
Highlights Palygorskite could be used to prepare zinc-bearing palygorskite (Zn-Pal). Zn-Pal had a higher bioavailability than ZnSO4. The optimal level of Zn supplementation was 60mg/kg as Zn-Pal for broilers. Zn-Pal has potential to be used as a novel Zn source in animal nutrition.
Bioavailability evaluation of zinc-bearing palygorskite as a zinc source for broiler chickens
https://orcid.org/0000-0001-7844-542X
Abstract The aim of the present study was to evaluate the bioavailability of zinc-bearing palygorskite (Zn-Pal) in broilers. A total of 432 one-day-old Arbor Acres broilers were randomly assigned to nine groups administered different dietary treatments for 42days. The broilers were fed a basal diet supplemented with 0, 20, 40, 60 or 80mg/kg of Zn in the form of either feed-grade ZnSO4 or Zn-Pal, respectively. The growth performance was not affected by the addition of Zn (P >0.05). At 21days of age, the content of Zn in the blood of broilers fed diets supplemented with Zn-Pal was higher than that of broilers fed diets supplemented with ZnSO4 (P <0.01). A dose-dependent response was observed between the supplemental Zn level and the Zn content in the tibia in both the starter (1–21days) and grower periods (22–42days, P <0.01). The maximal Zn content was observed in the pancreas and tibia of broilers fed 80mg/kg of Zn as ZnSO4 or 60mg/kg of Zn as Zn-Pal. The broilers fed 80mg/kg of Zn as either ZnSO4 or Zn-Pal had the highest Zn content in the breast muscle (P <0.05). At 42days of age, the contents of Zn in the pancreas, tibia and breast muscle increased with supplemental Zn levels (P <0.01). Zn-Pal increased the Zn content in the tibia compared with ZnSO4 (P <0.05). At 21days of age, the relative biological values (RBVs) of Zn-Pal were 109.64%, 100% and 100%, as determined using the contents of Zn in the pancreas, tibia and breast muscle, respectively, as response parameters. At 42days of age, the RBVs of Zn-Pal were 86.32% and 119.55% based on the contents of Zn in the pancreas and tibia. It was concluded that Zn-Pal had a higher bioavailability than ZnSO4 in broiler diets. The optimal level of supplemented Zn for broilers was 60mg/kg in the form of Zn-Pal.
Graphical abstract Display Omitted
Highlights Palygorskite could be used to prepare zinc-bearing palygorskite (Zn-Pal). Zn-Pal had a higher bioavailability than ZnSO4. The optimal level of Zn supplementation was 60mg/kg as Zn-Pal for broilers. Zn-Pal has potential to be used as a novel Zn source in animal nutrition.
Bioavailability evaluation of zinc-bearing palygorskite as a zinc source for broiler chickens
Yan, Rui (author) / Zhang, Lei (author) / Yang, Xue (author) / Wen, Chao (author) / Zhou, Yanmin (author)
Applied Clay Science ; 119 ; 155-160
2015-07-17
6 pages
Article (Journal)
Electronic Resource
English
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