Penyusunan Faktor Koreksi Produksi Susu Sapi Perah
Abstract: The aim of the
research was to obtain the correction factors of non-genetic effects that have
influence on milk production of dairy cows. The research used a survey method
on milk records of dairy cows kept in Dairy Cattle Breeding Center (BBPTU) of
Baturraden. The data taken was only those relevant with the research objective.
The data examined were as many as 324 production records of 108 dairy cows
which had completed first three lactation, originated from 36 sires.
Non-genetic factors studied were season, lactation period, number of days in
milk of a lactation and age at birth. The effects of non-genetic factors were
estimated through Stepwise multiple regression method. Effect of the number of
days in milk of a lactation was highly significant (P ≤ 0.01), age at birth was
significant (P ≤ 0.05), and season and the lactation period were not
significant (P>0.05) on milk production of dairy cows. Variables that have
effect on milk production were then assigned the correction factors. Correction
factors were derived from the least square mean (LSM) of the actual milk
production. The correction factors were obtained by comparing the base LSM to
the created LSM values on particular classes. The corrected milk production was
obtained by multiplying the corresponding correction factor obtained with the
actual milk production. Based on the study, the local correction factors lower
the milk production variability of dairy cows.
Penulsi: Setya Agus Santosa,
Anjang Taruno Ari Sudewo, Agus Susanto
Kode Jurnal: jppeternakandd140174
