Anaerobic degradability and acid hydrolysis organic manure as an illistration of dietary organic matter utilization in crows in relation to lactation period.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F14%3A43886851" target="_blank" >RIV/60076658:12220/14:43886851 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.2754/avb201483040363" target="_blank" >http://dx.doi.org/10.2754/avb201483040363</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2754/avb201483040363" target="_blank" >10.2754/avb201483040363</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Anaerobic degradability and acid hydrolysis organic manure as an illistration of dietary organic matter utilization in crows in relation to lactation period.

Popis výsledku v původním jazyce

The objective of the present paper was to verify a hypothesis whether the method of studying the anaerobic degradability of organic matter of excrements could reveal the utilization of dietary organic matter in the digestive tract of ruminants in relation to lactation period and application of a mineral product and whether it could be replaced by a cheaper and easier method of acid hydrolysis of excrements. Changes in anaerobic degradability and hydrolysis yields of excrements were investigated in an experimental herd of 30 cows divided into two groups differing in lactation period by 30 days. The results document that anaerobic degradability is a suitable indicator of anaerobic digestion conditions in the digestive tract of animals and of the fitness of their organism. However, the results of excrement hydrolysis according to the Rovira et Vallejo (2002) method were hardly reproducible and so they could not be used, if only the very labile organic fraction LPI is evaluated. The evaluation of the sum of fractions LPI and LPII (semi-labile fraction) provides easily available values, but these are only orientative values that cannot replace the costly and labour-consuming determination of anaerobic degradability of excrements.

Název v anglickém jazyce

Anaerobic degradability and acid hydrolysis organic manure as an illistration of dietary organic matter utilization in crows in relation to lactation period.

Popis výsledku anglicky

The objective of the present paper was to verify a hypothesis whether the method of studying the anaerobic degradability of organic matter of excrements could reveal the utilization of dietary organic matter in the digestive tract of ruminants in relation to lactation period and application of a mineral product and whether it could be replaced by a cheaper and easier method of acid hydrolysis of excrements. Changes in anaerobic degradability and hydrolysis yields of excrements were investigated in an experimental herd of 30 cows divided into two groups differing in lactation period by 30 days. The results document that anaerobic degradability is a suitable indicator of anaerobic digestion conditions in the digestive tract of animals and of the fitness of their organism. However, the results of excrement hydrolysis according to the Rovira et Vallejo (2002) method were hardly reproducible and so they could not be used, if only the very labile organic fraction LPI is evaluated. The evaluation of the sum of fractions LPI and LPII (semi-labile fraction) provides easily available values, but these are only orientative values that cannot replace the costly and labour-consuming determination of anaerobic degradability of excrements.

Druh

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

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Acta Veterinaria Brno

ISSN

0001-7213

e-ISSN

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Svazek periodika

83

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

363-369

Kód UT WoS článku

000346604900012

EID výsledku v databázi Scopus

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