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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
17/02/2023 |
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Data da última atualização: |
17/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
DIANA, T. F.; CALDERANO, A. A.; ROSTAGNO, H. S.; MARQUES, M. R. de L.; TAVERNARI, F. de C.; VERONEZE, R.; ALBINO, L. F. T. |
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Afiliação: |
THIAGO FERREIRA DIANA, Universidade Federal de Viçosa; ARELE ARLINDO CALDERANO, Universidade Federal de Viçosa; HORACIO SANTIAGO ROSTAGNO, Universidade Federal de Viçosa; MARIA RITA DE LIMA MARQUES, Universidade Federal de Viçosa; FERNANDO DE CASTRO TAVERNARI, CNPSA; RENATA VERONEZE, Universidade Federal de Viçosa; LUIZ FERNANDO TEIXEIRA ALBINO, Universidade Federal de Viçosa. |
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Título: |
Apparent calcium retention and digestibility coefficients of limestone with different particle sizes in laying hens. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Scientia Agricola, v. 80, n. e20210258, 2023. |
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DOI: |
http://doi.org/10.1590/1678-992X-2021-0258 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Apparent calcium (Ca) retention and digestibility coefficients are affected by limestone particle size in the diet of laying hens. This study aimed to determine the apparent retention and digestibility coefficients of Ca in limestone of different particle sizes in laying hens. The study comprised 288 Lohmann Brown laying hens (50 weeks of age; 1,964 ± 98 g) distributed in a completely randomized experimental design with a 3 × 2 factorial arrangement [three Ca concentrations (10, 20, and 30 g kg?1) × two limestone particle sizes (480 and 1,978 µm)] with eight repetitions per treatment and six birds per experimental unit. The experiment included five days for adaptation and five days for total excreta collection. All birds were slaughtered at the end of the ten days to collect the ileal contents. The total or ileal Ca content was plotted against the Ca of diets concentration using linear regression analysis. The regression line slope represented the apparent retention (CaR) and digestibility coefficients of Ca (CaD) in limestone. There was interaction between Ca concentration in the diet and limestone granulometry on CaD (p = 0.001) and CaR (p < 0.001). The CaD and CaR of fine- and coarsegrained limestone increased linearly with increasing Ca concentrations in the diet. The apparent digestibility coefficients estimated for laying hens fed with fine-grained and coarse-grained limestone were 0.72 and 0.35, respectively. The apparent retention coefficients estimated for laying hens fed fine-grained and coarse-grained limestone were 0.96 and 0.47, respectively. MenosAbstract: Apparent calcium (Ca) retention and digestibility coefficients are affected by limestone particle size in the diet of laying hens. This study aimed to determine the apparent retention and digestibility coefficients of Ca in limestone of different particle sizes in laying hens. The study comprised 288 Lohmann Brown laying hens (50 weeks of age; 1,964 ± 98 g) distributed in a completely randomized experimental design with a 3 × 2 factorial arrangement [three Ca concentrations (10, 20, and 30 g kg?1) × two limestone particle sizes (480 and 1,978 µm)] with eight repetitions per treatment and six birds per experimental unit. The experiment included five days for adaptation and five days for total excreta collection. All birds were slaughtered at the end of the ten days to collect the ileal contents. The total or ileal Ca content was plotted against the Ca of diets concentration using linear regression analysis. The regression line slope represented the apparent retention (CaR) and digestibility coefficients of Ca (CaD) in limestone. There was interaction between Ca concentration in the diet and limestone granulometry on CaD (p = 0.001) and CaR (p < 0.001). The CaD and CaR of fine- and coarsegrained limestone increased linearly with increasing Ca concentrations in the diet. The apparent digestibility coefficients estimated for laying hens fed with fine-grained and coarse-grained limestone were 0.72 and 0.35, respectively. The apparent retention coefficients estimated for... Mostrar Tudo |
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Palavras-Chave: |
Poedeira; Regression. |
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Thesagro: |
Calcário; Dieta; Digestibilidade; Galinha Para Postura; Mineral; Moela. |
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Thesaurus NAL: |
Birds; Gizzard; Minerals. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151847/1/final10115.pdf
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Marc: |
LEADER 02554naa a2200337 a 4500
001 2151847
005 2023-02-17
008 2023 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1590/1678-992X-2021-0258$2DOI
100 1 $aDIANA, T. F.
245 $aApparent calcium retention and digestibility coefficients of limestone with different particle sizes in laying hens.$h[electronic resource]
260 $c2023
520 $aAbstract: Apparent calcium (Ca) retention and digestibility coefficients are affected by limestone particle size in the diet of laying hens. This study aimed to determine the apparent retention and digestibility coefficients of Ca in limestone of different particle sizes in laying hens. The study comprised 288 Lohmann Brown laying hens (50 weeks of age; 1,964 ± 98 g) distributed in a completely randomized experimental design with a 3 × 2 factorial arrangement [three Ca concentrations (10, 20, and 30 g kg?1) × two limestone particle sizes (480 and 1,978 µm)] with eight repetitions per treatment and six birds per experimental unit. The experiment included five days for adaptation and five days for total excreta collection. All birds were slaughtered at the end of the ten days to collect the ileal contents. The total or ileal Ca content was plotted against the Ca of diets concentration using linear regression analysis. The regression line slope represented the apparent retention (CaR) and digestibility coefficients of Ca (CaD) in limestone. There was interaction between Ca concentration in the diet and limestone granulometry on CaD (p = 0.001) and CaR (p < 0.001). The CaD and CaR of fine- and coarsegrained limestone increased linearly with increasing Ca concentrations in the diet. The apparent digestibility coefficients estimated for laying hens fed with fine-grained and coarse-grained limestone were 0.72 and 0.35, respectively. The apparent retention coefficients estimated for laying hens fed fine-grained and coarse-grained limestone were 0.96 and 0.47, respectively.
650 $aBirds
650 $aGizzard
650 $aMinerals
650 $aCalcário
650 $aDieta
650 $aDigestibilidade
650 $aGalinha Para Postura
650 $aMineral
650 $aMoela
653 $aPoedeira
653 $aRegression
700 1 $aCALDERANO, A. A.
700 1 $aROSTAGNO, H. S.
700 1 $aMARQUES, M. R. de L.
700 1 $aTAVERNARI, F. de C.
700 1 $aVERONEZE, R.
700 1 $aALBINO, L. F. T.
773 $tScientia Agricola$gv. 80, n. e20210258, 2023.
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Embrapa Suínos e Aves (CNPSA) |
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