Cargando…
Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase
A comparison between 3-wk-old female turkeys (B.U.T. 6) and broilers (Ross 308) was performed to study the effects of species, dietary P, Ca, and phytase levels on gut mucosal phosphatase activity, myo-inositol hexakisphosphate (InsP(6)) degradation along the digestive tract, digestibility of P, Ca,...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9860161/ https://www.ncbi.nlm.nih.gov/pubmed/36641994 http://dx.doi.org/10.1016/j.psj.2022.102457 |
_version_ | 1784874517432107008 |
---|---|
author | Novotny, Moritz Sommerfeld, Vera Krieg, Jochen Kühn, Imke Huber, Korinna Rodehutscord, Markus |
author_facet | Novotny, Moritz Sommerfeld, Vera Krieg, Jochen Kühn, Imke Huber, Korinna Rodehutscord, Markus |
author_sort | Novotny, Moritz |
collection | PubMed |
description | A comparison between 3-wk-old female turkeys (B.U.T. 6) and broilers (Ross 308) was performed to study the effects of species, dietary P, Ca, and phytase levels on gut mucosal phosphatase activity, myo-inositol hexakisphosphate (InsP(6)) degradation along the digestive tract, digestibility of P, Ca, and amino acids, and concentrations of myo-inositol in the digesta and blood. The experimental diets were corn-soybean meal-based and identical for both species. Two dietary P and Ca concentrations (CaP–: 4.1 g P/kg, 5.5 g Ca/kg and CaP+: 9.0 g P/kg, 12.0 g Ca/kg) and 2 levels of phytase supplementation (0 and 1,500 FTU/kg) were used in a 2 × 2 factorial design and fed to the animals for 7 d in their third week of age. Each diet was randomly assigned to 6 broiler and 6 turkey pens, with 10 birds each. After slaughter, blood, digesta from the crop, gizzard, duodenum, lower ileum, and mucosa from the jejunum were collected. When fed CaP– without phytase supplementation, there were no differences between species in gut mucosal phosphatase activity, prececal InsP(6) disappearance, and P and Ca digestibility, indicating a similar intrinsic capacity for phytate degradation in both species. When fed CaP+ without phytase supplementation, turkeys showed higher prececal InsP(6) disappearance than broilers. Phytase supplementation increased prececal InsP(6) disappearance and digestibility of P and Ca in both species. However, the phytase-induced increase in prececal InsP(6) disappearance was more pronounced in broilers than in turkeys, possibly due to more adequate conditions for phytase activity in the broiler crop. In broilers, phytase supplementation increased amino acid digestibility overall, whereas, in turkeys, it increased with CaP+ and decreased with CaP–. In addition, the relationship between myo-inositol concentration in the ileum and blood differed between species, indicating differences in myo-inositol metabolism. It was concluded that 3-week-old turkeys and broilers differ in nutrient digestibility and InsP degradation in some segments of the digestive tract but have similar endogenous InsP(6) degradation when fed low P and Ca diets. |
format | Online Article Text |
id | pubmed-9860161 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-98601612023-01-22 Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase Novotny, Moritz Sommerfeld, Vera Krieg, Jochen Kühn, Imke Huber, Korinna Rodehutscord, Markus Poult Sci METABOLISM AND NUTRITION A comparison between 3-wk-old female turkeys (B.U.T. 6) and broilers (Ross 308) was performed to study the effects of species, dietary P, Ca, and phytase levels on gut mucosal phosphatase activity, myo-inositol hexakisphosphate (InsP(6)) degradation along the digestive tract, digestibility of P, Ca, and amino acids, and concentrations of myo-inositol in the digesta and blood. The experimental diets were corn-soybean meal-based and identical for both species. Two dietary P and Ca concentrations (CaP–: 4.1 g P/kg, 5.5 g Ca/kg and CaP+: 9.0 g P/kg, 12.0 g Ca/kg) and 2 levels of phytase supplementation (0 and 1,500 FTU/kg) were used in a 2 × 2 factorial design and fed to the animals for 7 d in their third week of age. Each diet was randomly assigned to 6 broiler and 6 turkey pens, with 10 birds each. After slaughter, blood, digesta from the crop, gizzard, duodenum, lower ileum, and mucosa from the jejunum were collected. When fed CaP– without phytase supplementation, there were no differences between species in gut mucosal phosphatase activity, prececal InsP(6) disappearance, and P and Ca digestibility, indicating a similar intrinsic capacity for phytate degradation in both species. When fed CaP+ without phytase supplementation, turkeys showed higher prececal InsP(6) disappearance than broilers. Phytase supplementation increased prececal InsP(6) disappearance and digestibility of P and Ca in both species. However, the phytase-induced increase in prececal InsP(6) disappearance was more pronounced in broilers than in turkeys, possibly due to more adequate conditions for phytase activity in the broiler crop. In broilers, phytase supplementation increased amino acid digestibility overall, whereas, in turkeys, it increased with CaP+ and decreased with CaP–. In addition, the relationship between myo-inositol concentration in the ileum and blood differed between species, indicating differences in myo-inositol metabolism. It was concluded that 3-week-old turkeys and broilers differ in nutrient digestibility and InsP degradation in some segments of the digestive tract but have similar endogenous InsP(6) degradation when fed low P and Ca diets. Elsevier 2022-12-29 /pmc/articles/PMC9860161/ /pubmed/36641994 http://dx.doi.org/10.1016/j.psj.2022.102457 Text en © 2022 The Authors https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | METABOLISM AND NUTRITION Novotny, Moritz Sommerfeld, Vera Krieg, Jochen Kühn, Imke Huber, Korinna Rodehutscord, Markus Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase |
title | Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase |
title_full | Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase |
title_fullStr | Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase |
title_full_unstemmed | Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase |
title_short | Comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase |
title_sort | comparison of mucosal phosphatase activity, phytate degradation, and nutrient digestibility in 3-week-old turkeys and broilers at different dietary levels of phosphorus and phytase |
topic | METABOLISM AND NUTRITION |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9860161/ https://www.ncbi.nlm.nih.gov/pubmed/36641994 http://dx.doi.org/10.1016/j.psj.2022.102457 |
work_keys_str_mv | AT novotnymoritz comparisonofmucosalphosphataseactivityphytatedegradationandnutrientdigestibilityin3weekoldturkeysandbroilersatdifferentdietarylevelsofphosphorusandphytase AT sommerfeldvera comparisonofmucosalphosphataseactivityphytatedegradationandnutrientdigestibilityin3weekoldturkeysandbroilersatdifferentdietarylevelsofphosphorusandphytase AT kriegjochen comparisonofmucosalphosphataseactivityphytatedegradationandnutrientdigestibilityin3weekoldturkeysandbroilersatdifferentdietarylevelsofphosphorusandphytase AT kuhnimke comparisonofmucosalphosphataseactivityphytatedegradationandnutrientdigestibilityin3weekoldturkeysandbroilersatdifferentdietarylevelsofphosphorusandphytase AT huberkorinna comparisonofmucosalphosphataseactivityphytatedegradationandnutrientdigestibilityin3weekoldturkeysandbroilersatdifferentdietarylevelsofphosphorusandphytase AT rodehutscordmarkus comparisonofmucosalphosphataseactivityphytatedegradationandnutrientdigestibilityin3weekoldturkeysandbroilersatdifferentdietarylevelsofphosphorusandphytase |