PENDUGAAN NILAI RIPITABILITAS PRODUKSI SUSU DAN LAMA LAKTASI SAPI PERAH FRIESIAN HOLSTEIN DI PT. NAKSATRA KEJORA RAWASENENG TEMANGGUNG
| Main Authors: | , RISMA PRAYULISTINA, , Prof. Dr. Ir. Sumadi, MS. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2013
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/125375/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=65542 |
Daftar Isi:
- The study was conducted to estimate the repeatability of milk production and length of lactation at PT. Naksatra Kejora Rawaseneng. The data used milk production and length of lactation records, consisted milk production and length of lactation records from 17 sires who have 181 milk production and length of lactation records from 51 offsprings between the year 2004 until 2010. The repeatability was estimate based on interclass correlation and intraclass corelation. The result of this study showed that repeatability of milk production based on interclass correlation of 2 records, intraclass correlation of 3, 4, and unequal number of records were 0,59±0,09, 0,40±0,09, 0,25±0,10, and 0,48±0,08 respectively. Repeatability of length of lactation based on interclass correlation of 2 records, intraclass correlation of 3, 4, and unequal number of records were 0,37±0,12, 0,18±0,09, 0,11±0,09, and 0,68±0,06 respectively. The results showed that the average of milk production and length of lactation were 3.533,39±1.075,92 kg and 322,31±67,99 days. From this results it could be concluded that the average repeatability of milk production and length of lactation showed a positive high and middle values.