EFFECT OF DRY PERIOD LENGTH OF FIRST-CALF HEIFERS AND OLDER COWS ON THEIR PERFORMANCE IN THE NEXT PRODUCTION CYCLE

EFFECT OF DRY PERIOD LENGTH OF FIRST-CALF HEIFERS AND OLDER COWS ON THEIR PERFORMANCE IN THE NEXT PRODUCTION CYCLE

Analysis was made of the effect of dry period length in first-calf heifers and older cows from the active population of cows in the Pomerania and Kujavia regions on their performance in the next production cycle. The GLM, FREQ and CORR PEARSON procedures of the SAS package were used for statistical...

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Bibliographic Details
Main Authors: Anna SAWA, Mariusz BOGUCKI, Wojciech NEJA
Format: Article
Language:Bulgarian
Published: University of Zagreb, Faculty of Agriculture 2013-06-01
Series:Journal of Central European Agriculture
Subjects:
cows
milk
dry period
fertility
culling
Online Access:http://jcea.agr.hr/articles/774538_EFFECT_OF_DRY_PERIOD_LENGTH_OF_FIRST_CALF_HEIFERS_AND_OLDER_COWS_ON_THEIR_PERFORMANCE_IN_THE_NEXT_PRODUCTION_CYCLE_en.pdf

Internet

http://jcea.agr.hr/articles/774538_EFFECT_OF_DRY_PERIOD_LENGTH_OF_FIRST_CALF_HEIFERS_AND_OLDER_COWS_ON_THEIR_PERFORMANCE_IN_THE_NEXT_PRODUCTION_CYCLE_en.pdf

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