Progesterone level in milk and pregnancy rate of Ovsynch-treated Holstein cows

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F08%3A25151" target="_blank" >RIV/60460709:41210/08:25151 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Progesterone level in milk and pregnancy rate of Ovsynch-treated Holstein cows

Original language description

The objective of this study was to determine the course of progesterone level (PL) in the milk of 27 Ovsynch-treated Holstein cows from 10 days before (Day-10) to 35 days after evaluated AI (Day+35) and the pregnancy rate (PR) in relation to the calvingseason, parity, milk production in the first 100 days of lactation, number of inseminations, health, and the result of AI performed in March 2006. Cows calved from May to September achieved higher PL on Day+18 (P < 0.05) and a higher PR by 29.95%. A higher PL was detected in primiparous cows (P < 0.05). First-time inseminated cows had a higher PL on Day-18 (P < 0.05) and a higher PR than cows in second and subsequent insemination. The PL of cows pregnant after the evaluated AI was higher, with statistical significance on Day+35 only (P < 0.05). Cows with metritis had a lower PR by 38.00% and a higher PL to Day+13 with a subsequent decline on Day+18 (P < 0.05) and Day+21. Cows with an occurrence of multiple ovarian cysts attained a signi

Czech name

Hladina progesteronu v mléce a zabřezávání holštýnských dojnic ošetřených Ovsynchem

Czech description

The objective of this study was to determine the course of progesterone level (PL) in the milk of 27 Ovsynch-treated Holstein cows from 10 days before (Day-10) to 35 days after evaluated AI (Day+35) and the pregnancy rate (PR) in relation to the calvingseason, parity, milk production in the first 100 days of lactation, number of inseminations, health, and the result of AI performed in March 2006. Cows calved from May to September achieved higher PL on Day+18 (P < 0.05) and a higher PR by 29.95%. A higher PL was detected in primiparous cows (P < 0.05). First-time inseminated cows had a higher PL on Day-18 (P < 0.05) and a higher PR than cows in second and subsequent insemination. The PL of cows pregnant after the evaluated AI was higher, with statistical significance on Day+35 only (P < 0.05). Cows with metritis had a lower PR by 38.00% and a higher PL to Day+13 with a subsequent decline on Day+18 (P < 0.05) and Day+21. Cows with an occurrence of multiple ovarian cysts attained a signi

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GG - Zootechnics

OECD FORD branch

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Project

<a href="/en/project/1G46086" target="_blank" >1G46086: Strategy of dairy cows breeding under competetive conditions.</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Name of the periodical

Výzkum v chovu skotu - Acta taurologica

ISSN

0139-7265

e-ISSN

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Volume of the periodical

50

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

8

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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