POPULATION DYNAMICS ON ONGOLE GRADE CATTLE IN KEBUMEN REGENCY - CENTRAL JAVA
Abstract: The objectiveof this
study was to elucidatereproductive characteristics, potential output and
dynamics population of Ongole Gradecattle in Kebumen Regency, Province of
Central Java. The studywasconductedfromSeptemberto November 2015.The materials used
in the study were165 farmers as respondentshavingOngole Gradecattle. The
research method used was survey. Respondent samples were taken from five
districts in which the location was determined by using purposive sampling.
Data were collected through direct interviews with livestock farmers as
respondents. The analysis used wasdescriptive analysis. The results showed that
the age at first mating was 26.87 month, S/C was 1.64, post-partum mating
was4.52 month, weaning age was 3.97 month, calving interval was 14.32 month,
and the birth rate topopulation was45.5%. Reproductive efficiency value was
91.8%, natural increase was 44.68%, and net replacement rate of bull and heifer
were 1,209% and 253%,respectively, andtotal output 44.11%. Population dynamics
of Ongole Gradecattle from 2009 to 2014 fluctuated with average growthwas
-4.84%. In 2019, cow population of Ongole Gradewasestimated about 68.381 heads.
In conclusion Kebumen Regencyhasa relatively high potential output of Ongole
Gradecattle thatis44.11% and population dynamics from 2010 to 2014 fluctuated
with average of decrease growth is 4.84%. Estimation of cow’s population of
Ongole Grade cattle willincrease 16.7% per year.
Keywords: natural increase;
output; Ongole Grade Cattle; population dynamics
Author: J. Rohyan, S. Sutopo,
E. kurnianto
Journal Code: jppeternakangg170007
