The effect of age of pre-ruminant calves on calcium and phosphorus digestibility and retention

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The effect of age of pre-ruminant calves on calcium and phosphorus digestibility and retention

Popis výsledku v původním jazyce

Apparent calcium and phosphorus digestibility was studied in an experiment with five male calves of Czech Red Pied breed at the age of 9 to 91 days. Animals were fed on a milk replacer ad semi-libitum. Digestibility was determined in 23 three-day balanceindicator method. The average estimated values of digestibility of Ca and P were 0.341 ? 0.0161 and 0.689 ? 0.0092, respectively. Digestibility of Ca changed significantly (P<0.05) with the age of calves after the 2nd degree parabola with a minimum on Dasignificantly (P<0.01) linearly daily by 0.0021. Apparent retention of Ca and P was studied in 22 balance periods from Day 12 to 91. Utilization of both elements under study varied highly significantly (P<0.01) with the age. The dependence of Ca retentiowith the minimum on Day 20. Phosphorus retention increased linearly. On average, the calves retained 0.341 ? 0.0159 of calcium and 0.356 ? 0.0113 of phosphorus intake, respectively.

Název v anglickém jazyce

The effect of age of pre-ruminant calves on calcium and phosphorus digestibility and retention

Popis výsledku anglicky

Apparent calcium and phosphorus digestibility was studied in an experiment with five male calves of Czech Red Pied breed at the age of 9 to 91 days. Animals were fed on a milk replacer ad semi-libitum. Digestibility was determined in 23 three-day balanceindicator method. The average estimated values of digestibility of Ca and P were 0.341 ? 0.0161 and 0.689 ? 0.0092, respectively. Digestibility of Ca changed significantly (P<0.05) with the age of calves after the 2nd degree parabola with a minimum on Dasignificantly (P<0.01) linearly daily by 0.0021. Apparent retention of Ca and P was studied in 22 balance periods from Day 12 to 91. Utilization of both elements under study varied highly significantly (P<0.01) with the age. The dependence of Ca retentiowith the minimum on Day 20. Phosphorus retention increased linearly. On average, the calves retained 0.341 ? 0.0159 of calcium and 0.356 ? 0.0113 of phosphorus intake, respectively.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GH - Výživa hospodářských zvířat

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta universitatis agriculturae et silviculturae Mendelianae Brunensis

ISSN

1211-8516

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

117-124

Kód UT WoS článku

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EID výsledku v databázi Scopus

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