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| Description
| - Přežvýkavci dokáží dobře využít kyselinu fytovou obsaženou v potravě. U mladých telat je však systém trávení méně vyvinut než u dospělých zvířat.Cílem práce bylo zjistit, zda kyselina fytová je v trávícím traktu telat zcela hydrolyzována, či nikoliv. Odebírali jsme vzorky fécés u 16 telat přímo z rekta a stanovili kyselinu fytovou metodou kapilární isotachoforézy. Vzorky byly odebírány ve věku 1,6 a 13 týdnů. Startéry s obsahem 9,17 a 12,80 g kyseliny fytové v 1 kg sušiny (37,6 a 50,1% celkového P) jsme telatům podávali ad libitum od 4. dne po narození. Odstav telat proběhl ve věku 6 týdnů. Podíl fytátového P na celkovém obsahu P ve výkalech činil 0 až 8,9%. Nejvyšší koncentraci kyseliny fytové jsme nalezli u telat ve věku 6 týdnů. Výkaly telat ve věku 1, 6 a 13 týdnů obsahovaly 8+/-4, 477+/-265 a 275+/-211 mg kyseliny fytové v 1 kg sušiny. Lze konstatovat, že hydrolýza kyseliny fytové v trávícím traktu telat krmených startéry není úplná a její malá část přechází do výkalů. (cs)
- Ruminants utilize phytic acid well. Tilt! digestive system of young calves, however, is less developed than that of adult animals. The aim of our study was to decide whether phytic acid hydrolysis in the digestive tract of calves is complete or not. Thus, rectal samples of faeces were collected from 16 crossbred calves fed starter diets. Faeces of calves were sampled at the age of 1, 6 and 13 weeks. In starter concentrates and faeces the phytic acid content was determined by capillary isotachophoresis. Two commercial starters containing 9.17 and 12.80,, of phytic acid per kg of dry matter (37.6 and 50.1% of the total P) were offered ad libitum from the 4(th) day of life, Calves were weaned from milk, at the ae of 6 weeks. Phytic acid was determined in 30 out of 37 faecal samples. Its concentration varied widely from I in, to 2.34 g per kg of dry matter. In some samples. the quantity of phytic acid Was insufficient for a precise determination. Phytic acid phosphorus represented 0 to 8.9% of the total P
- Ruminants utilize phytic acid well. Tilt! digestive system of young calves, however, is less developed than that of adult animals. The aim of our study was to decide whether phytic acid hydrolysis in the digestive tract of calves is complete or not. Thus, rectal samples of faeces were collected from 16 crossbred calves fed starter diets. Faeces of calves were sampled at the age of 1, 6 and 13 weeks. In starter concentrates and faeces the phytic acid content was determined by capillary isotachophoresis. Two commercial starters containing 9.17 and 12.80,, of phytic acid per kg of dry matter (37.6 and 50.1% of the total P) were offered ad libitum from the 4(th) day of life, Calves were weaned from milk, at the ae of 6 weeks. Phytic acid was determined in 30 out of 37 faecal samples. Its concentration varied widely from I in, to 2.34 g per kg of dry matter. In some samples. the quantity of phytic acid Was insufficient for a precise determination. Phytic acid phosphorus represented 0 to 8.9% of the total P (en)
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| Title
| - Concentration of phytic acid in faeces of calves fed starter diets
- Concentration of phytic acid in faeces of calves fed starter diets (en)
- Koncentrace kyseliny fytové ve výkalech telat krmených startérovými koncentráty (cs)
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| skos:prefLabel
| - Concentration of phytic acid in faeces of calves fed starter diets
- Concentration of phytic acid in faeces of calves fed starter diets (en)
- Koncentrace kyseliny fytové ve výkalech telat krmených startérovými koncentráty (cs)
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| skos:notation
| - RIV/62157124:16170/01:00000196!RIV06-MSM-16170___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA524/99/0101), P(KSK5020115), Z(AV0Z5045916), Z(MSM 161700002), Z(MSM 412100003)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/62157124:16170/01:00000196
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - nutrition; concentrated feed; phosphorus; phytic acid (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Dušková, Dagmar
- Marounek, Milan
- Dvořák, Rudolf
- Doubek, Jaroslav
- Rada, Vojtěch
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| http://linked.open...n/vavai/riv/zamer
| |
| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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