Economic Analysis of Calving Interval of Hungarian Dairy Cattle
Loading...
Date
2001
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The iinpact of various leiLgths of calving iiLterva1 (CI) was airalysed by
budgetiiig aibalysis usiirg Quatro spreadsheet program. The lifetime inilk
yield and profit per day was used as a basis on various inilk yields, inilk
prices aird culliiig strategy either OIL age of cow or lactation. -4nother locally
developed biornetrical program pa.ckage was also used to aualyse the
distribution of herds using frequency table. Milk production level over
different lengths of CZ and average lactatioiial CI in comparisori with each
lactation were aiialysed. Greater portioii of herds were distributed within
the CZ of 360 days. Annual inilk yield got reduced froin 4500 to 3372 kg as
the CI imcreased froin 360 to 450d. Average CZ was fouud to be higher for
high yielding cows i i L expectation to have inore lactatioiml yields by keeping
thein for loiiger days open. The CI increased as the lactation progressed
upto the fourth aird then started decreasing. Increasing CI froin 360 to 420
or 450d resulted in a loss of 0.70 to 2.33 or 0.94 to 3.15 USD. From these
findings, it could be concluded that optirnum CZ should be adjusted between
360d and 390d.
Description
TNV_JAAR_2001_19(237-246)
Keywords
Veterinary Science