Seasonality in milk performance and reproduction of dairy cows in low-input farms depending on feeding system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F09%3A00010811" target="_blank" >RIV/60076658:12220/09:00010811 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Seasonality in milk performance and reproduction of dairy cows in low-input farms depending on feeding system

Popis výsledku v původním jazyce

The seasonality in milk performance and reproduction was analysed in low-input mountain farms in the Czech Republic. Two different feeding regimes were distinguished: seasonal pasture and all-year-through silage feeding in confinement. Seventeen pasturedherds and sixteen confined herds of Czech Pied and Holstein breeds (in total 12 158 cows) were included in the seven-years observation. The seasonal variation of milk, fat and protein yields per lactation according to the month of calving was found in both the groups of herds. The highest yields were achieved by autumn-calved and the lowest yields by summer-calved cows (difference of 542 kg and 474 kg of milk on average in pastured and in confined herds, respectively). Higher individual daily yields (up to 2.9 kg on average) were recorded in May ? July period than in the rest of a year. No effect of month of calving on days-to-first-service and on days-open period was identified.

Název v anglickém jazyce

Seasonality in milk performance and reproduction of dairy cows in low-input farms depending on feeding system

Popis výsledku anglicky

The seasonality in milk performance and reproduction was analysed in low-input mountain farms in the Czech Republic. Two different feeding regimes were distinguished: seasonal pasture and all-year-through silage feeding in confinement. Seventeen pasturedherds and sixteen confined herds of Czech Pied and Holstein breeds (in total 12 158 cows) were included in the seven-years observation. The seasonal variation of milk, fat and protein yields per lactation according to the month of calving was found in both the groups of herds. The highest yields were achieved by autumn-calved and the lowest yields by summer-calved cows (difference of 542 kg and 474 kg of milk on average in pastured and in confined herds, respectively). Higher individual daily yields (up to 2.9 kg on average) were recorded in May ? July period than in the rest of a year. No effect of month of calving on days-to-first-service and on days-open period was identified.

Druh

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

CEP obor

GG - Chov hospodářských zvířat

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Journal of animal and Feed Sciences

ISSN

1230-1388

e-ISSN

—

Svazek periodika

18

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000265586400001

EID výsledku v databázi Scopus

—