Effect of dietary rumen-protected choline on milk production of dairy cows: A meta-analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F10%3A%230001220" target="_blank" >RIV/00027014:_____/10:#0001220 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of dietary rumen-protected choline on milk production of dairy cows: A meta-analysis

Popis výsledku v původním jazyce

Research studies presented inconsistent results on the effects and action of choline in dairy cow diets. A meta-analysis was conducted to quantify the effects of dietary rumen-protected choline on production characteristics of dairy cows. Dry matter intake (kg/d), milk yield (kg/d), milk fat (% and kg/d) and milk protein (% and kg/d) were evaluated as dependent variables in models. The number of treatment means varied from 20 obtained in 7 studies for milk fat and protein contents, to 34 from 11 studies(12 experiments) for milk yield. With accounting for experiment as a random effect, DMI, milk yield, milk protein content and milk protein yield could adequately be related to levels of dietary rumen-protected choline chloride by a logistic model. Marginal responses in milk yield decreased from 131.5 to 0.037 g of milk per gram of dietary rumen-protected choline chloride when supplementation increased from 6 to 50 g per day.

Název v anglickém jazyce

Effect of dietary rumen-protected choline on milk production of dairy cows: A meta-analysis

Popis výsledku anglicky

Research studies presented inconsistent results on the effects and action of choline in dairy cow diets. A meta-analysis was conducted to quantify the effects of dietary rumen-protected choline on production characteristics of dairy cows. Dry matter intake (kg/d), milk yield (kg/d), milk fat (% and kg/d) and milk protein (% and kg/d) were evaluated as dependent variables in models. The number of treatment means varied from 20 obtained in 7 studies for milk fat and protein contents, to 34 from 11 studies(12 experiments) for milk yield. With accounting for experiment as a random effect, DMI, milk yield, milk protein content and milk protein yield could adequately be related to levels of dietary rumen-protected choline chloride by a logistic model. Marginal responses in milk yield decreased from 131.5 to 0.037 g of milk per gram of dietary rumen-protected choline chloride when supplementation increased from 6 to 50 g per day.

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

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Dairy Science

ISSN

0022-0302

e-ISSN

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Svazek periodika

93

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000280203400040

EID výsledku v databázi Scopus

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