Evaluation of phosphate sources using ruminal fiber transit kinetics methodology
IntroductionSince the low phosphorus content is one of the reasons for the low degradation of fiber in roughage such as pasture and by-products, fiber transit kinetics can be an important tool to evaluate differences in digestion depending on phosphorus supplementation with different sources. The ob...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Animal Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fanim.2025.1490835/full |
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| author | Claudiney de Jesus Couto Bruna Cardoso Braga Raphael dos Santos Gomes Wagner Pessanha Tamy Severino Delmar Junqueira Villela Fernando de Paula Leonel Fernando de Paula Leonel |
| author_facet | Claudiney de Jesus Couto Bruna Cardoso Braga Raphael dos Santos Gomes Wagner Pessanha Tamy Severino Delmar Junqueira Villela Fernando de Paula Leonel Fernando de Paula Leonel |
| author_sort | Claudiney de Jesus Couto |
| collection | DOAJ |
| description | IntroductionSince the low phosphorus content is one of the reasons for the low degradation of fiber in roughage such as pasture and by-products, fiber transit kinetics can be an important tool to evaluate differences in digestion depending on phosphorus supplementation with different sources. The objective was to compare the potential of different sources of phosphorus in promoting improvement in fiber digestibility parameters.MethodsFeeds low in phosphorus were chosen to compose the basal diet. Five crossbred heifers with an average initial weight of 150 ± 8.2 kg were used, randomly distributed in a 5x5 Latin square. The treatments were: negative control (NC) without supplementary phosphorus; dicalcium phosphate from igneous rock with sulfuric acidulation, neutralization with limestone, and the show physical form of microgranules (ISLG); Dicalcium phosphate from igneous rock with sulfuric acidulation, neutralization with hydrated lime, and the physical form of powder (ISLhP); Dicalcium phosphate from sedimentary rock with hydrochloric acidulation, neutralization with limestone, and the micro-granulated show physical form (SeCLG); Dicalcium phosphate from the monocalcium phosphate and hydrated lime reaction adjusted with phosphoric acid, and the powder physical form (MLhPaP). The parameters of the kinetics transit of particles with use of the chromium marker, fixed to the roughage cell wall and subsequent recovery of the marker in the heifer feces, were determined.Results and discussionThe ISLG resulted in a higher (p<0.05) passage rate of particles from the solid to the liquid phase in the rumen-reticulum. There was no difference (p>0.05) between the diets for the time that indigestible particles spent from ruminal escape to their first appearance in feces. The longest retention time (p<0.05) of solid particles in the rumen-reticulum was detected in animals that received NC diet. In conclusion, heifers that do not receive supplemental phosphorus exhibited poorer fiber processing and dry matter intake (DMI). |
| format | Article |
| id | doaj-art-658fcc8f9fdd48488a0c752b17e88feb |
| institution | Kabale University |
| issn | 2673-6225 |
| language | English |
| publishDate | 2025-01-01 |
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| series | Frontiers in Animal Science |
| spelling | doaj-art-658fcc8f9fdd48488a0c752b17e88feb2025-01-30T13:50:21ZengFrontiers Media S.A.Frontiers in Animal Science2673-62252025-01-01610.3389/fanim.2025.14908351490835Evaluation of phosphate sources using ruminal fiber transit kinetics methodologyClaudiney de Jesus Couto0Bruna Cardoso Braga1Raphael dos Santos Gomes2Wagner Pessanha Tamy3Severino Delmar Junqueira Villela4Fernando de Paula Leonel5Fernando de Paula Leonel6Department of Animal Science, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, MG, BrazilDepartment of Animal Science, Federal University of Goiás, Goiânia, GO, BrazilFederal Institute of Education, Science and Technology of Rondonia, campus Colorado do Oeste, Colorado do Oeste, RO, BrazilDepartment of Animal Science and Sustainable Agro-Socio-Environmental Development, Faculty of Veterinary Medicine, Fluminense Federal University, Niterói, RJ, BrazilDepartment of Animal Science, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, MG, BrazilDepartment of Animal Science, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, MG, BrazilDepartment of Animal Science, Federal University of São João del-Rei, São João del-Rei, MG, BrazilIntroductionSince the low phosphorus content is one of the reasons for the low degradation of fiber in roughage such as pasture and by-products, fiber transit kinetics can be an important tool to evaluate differences in digestion depending on phosphorus supplementation with different sources. The objective was to compare the potential of different sources of phosphorus in promoting improvement in fiber digestibility parameters.MethodsFeeds low in phosphorus were chosen to compose the basal diet. Five crossbred heifers with an average initial weight of 150 ± 8.2 kg were used, randomly distributed in a 5x5 Latin square. The treatments were: negative control (NC) without supplementary phosphorus; dicalcium phosphate from igneous rock with sulfuric acidulation, neutralization with limestone, and the show physical form of microgranules (ISLG); Dicalcium phosphate from igneous rock with sulfuric acidulation, neutralization with hydrated lime, and the physical form of powder (ISLhP); Dicalcium phosphate from sedimentary rock with hydrochloric acidulation, neutralization with limestone, and the micro-granulated show physical form (SeCLG); Dicalcium phosphate from the monocalcium phosphate and hydrated lime reaction adjusted with phosphoric acid, and the powder physical form (MLhPaP). The parameters of the kinetics transit of particles with use of the chromium marker, fixed to the roughage cell wall and subsequent recovery of the marker in the heifer feces, were determined.Results and discussionThe ISLG resulted in a higher (p<0.05) passage rate of particles from the solid to the liquid phase in the rumen-reticulum. There was no difference (p>0.05) between the diets for the time that indigestible particles spent from ruminal escape to their first appearance in feces. The longest retention time (p<0.05) of solid particles in the rumen-reticulum was detected in animals that received NC diet. In conclusion, heifers that do not receive supplemental phosphorus exhibited poorer fiber processing and dry matter intake (DMI).https://www.frontiersin.org/articles/10.3389/fanim.2025.1490835/fullby-productsruminal fiber transit kineticsseed harvest strawpassage ratephosphorus source |
| spellingShingle | Claudiney de Jesus Couto Bruna Cardoso Braga Raphael dos Santos Gomes Wagner Pessanha Tamy Severino Delmar Junqueira Villela Fernando de Paula Leonel Fernando de Paula Leonel Evaluation of phosphate sources using ruminal fiber transit kinetics methodology Frontiers in Animal Science by-products ruminal fiber transit kinetics seed harvest straw passage rate phosphorus source |
| title | Evaluation of phosphate sources using ruminal fiber transit kinetics methodology |
| title_full | Evaluation of phosphate sources using ruminal fiber transit kinetics methodology |
| title_fullStr | Evaluation of phosphate sources using ruminal fiber transit kinetics methodology |
| title_full_unstemmed | Evaluation of phosphate sources using ruminal fiber transit kinetics methodology |
| title_short | Evaluation of phosphate sources using ruminal fiber transit kinetics methodology |
| title_sort | evaluation of phosphate sources using ruminal fiber transit kinetics methodology |
| topic | by-products ruminal fiber transit kinetics seed harvest straw passage rate phosphorus source |
| url | https://www.frontiersin.org/articles/10.3389/fanim.2025.1490835/full |
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