English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Title ofthe paper: <b>Recording of feed intake in stationary testing of potential AI bulls</b> This study was performed in order to estimate correlations between feed intake, eating time and daily gain inyoung bulls and in order to estimate genetic parameters for feed intake in successive testing periods aiming atreduction of costs for testing. Data were collected from 269 Station tested potential AI bulls of German Holstein.In the testing period beginning with the 112th and ending with the 312 day of life, bulls consumed 5.1 kgroughage in 125 minutes per day and increased their weight by 1,300 g daily. The heritability of feed intake was0.42, of eating behaviour 0.40 and of daily gain 0.62. Between feed intake and eating behaviour no relationshipcould be observed. Hence, an indirect measurement of feed intake is not possible. The high genetic correlationbetween feed intake and daily gain of 0.96 is no reason to replace feed intake recording because of a promisingrelationship between feed intake and health of dairy cows. Because of a delayed Start of 32 % of all tested bulls ashortening of the test period should be orientated to the last testing periods. In the last testing period, theheritability of feed intake was 0.65 and the genetic correlation between feed intake in the last and in the wholetest period was high with 0.88. Hence, the test period could be shortened favouring intake measurementsbetween 263rd and 312th day of life

Erfassung der Futteraufnahme im Rahmen der Stationsprüfung potentieller Besamungsbullen