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Statements

Subject Item
n2:RIV%2F62157124%3A16170%2F01%3A00000196%21RIV06-MSM-16170___
rdf:type
skos:Concept n19:Vysledek
dcterms:description
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 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.
dcterms:title
Concentration of phytic acid in faeces of calves fed starter diets Koncentrace kyseliny fytové ve výkalech telat krmených startérovými koncentráty Concentration of phytic acid in faeces of calves fed starter diets
skos:prefLabel
Concentration of phytic acid in faeces of calves fed starter diets Concentration of phytic acid in faeces of calves fed starter diets Koncentrace kyseliny fytové ve výkalech telat krmených startérovými koncentráty
skos:notation
RIV/62157124:16170/01:00000196!RIV06-MSM-16170___
n3:strany
381-385
n3:aktivita
n6:P n6:Z
n3:aktivity
P(GA524/99/0101), P(KSK5020115), Z(AV0Z5045916), Z(MSM 161700002), Z(MSM 412100003)
n3:cisloPeriodika
1
n3:dodaniDat
n12:2006
n3:domaciTvurceVysledku
n4:9388583 n4:2012715
n3:druhVysledku
n8:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
676206
n3:idVysledku
RIV/62157124:16170/01:00000196
n3:jazykVysledku
n10:eng
n3:klicovaSlova
nutrition; concentrated feed; phosphorus; phytic acid
n3:klicoveSlovo
n7:concentrated%20feed n7:phytic%20acid n7:nutrition n7:phosphorus
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[680DFFE16A3F]
n3:nazevZdroje
Acta veterinaria Brno
n3:obor
n16:GH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:projekt
n14:GA524%2F99%2F0101 n14:KSK5020115
n3:rokUplatneniVysledku
n12:2001
n3:svazekPeriodika
70
n3:tvurceVysledku
Rada, Vojtěch Marounek, Milan Doubek, Jaroslav Dvořák, Rudolf Dušková, Dagmar
n3:zamer
n15:AV0Z5045916 n15:MSM%20161700002 n15:MSM%20412100003
s:issn
0001-7213
s:numberOfPages
5
n13:organizacniJednotka
16170