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All Journal Buletin Peternakan Journal of the Indonesian Tropical Animal Agriculture Livestock and Animal Research
D. T. Widayati
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Veterinary Other

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Journal : Journal of the Indonesian Tropical Animal Agriculture

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Breeding value of sires based on offspring weaning weight as a recommendation for selecting Kebumen Ongole Grade cattle Sumadi, S.; Fathoni, A.; Maharani, D.; Ngadiyono, N.; Widayati, D. T.; Noviandi, C. T.; Khusnudin, M.
Journal of the Indonesian Tropical Animal Agriculture Vol 42, No 3 (2017): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.42.3.160-166

Abstract

The objective of study was to estimate breeding value of sires of Kebumen Ongole grade cattle based on offsprings weaning weight. This research was carried out from August to December 2015 in Urut Sewu area, Kebumen. The calculation of genetic parameter estimation was heritability of weaning weight. The value of heritability was used to calculate the breeding value of sires based on offsprings weaning weight. Heritability was calculated using paternal half-sib correlation with the direct pattern variance analysis. Breeding Value (BV) of sire was calculated by absolute estimated breeding value. The materials used in this study included were data record during the last three years (2013-2015) consisted of 41 sires, 51 dams and 244 calves. Weaning weight data had been corrected based on age of dams, sex and weaning age of 120 days. The results showed that the heritability value of weaning weight was included in high category (0.36 ± 0.21). The highest BV was KJ.J608 (49.76) with a ratio of 231.45%. The results of this study were expected to be the basis recommendation for selecting sires in Kebumen.
Predicting the age and weight at puberty of Ongole Grade cattle using nonlinear mathematical model in Kebumen Farmer Association Maharani, D.; Amrullah, A. H. K.; Widayati, D. T.; Sumadi, S.; Fathoni, A.; Khusnudin, M.
Journal of the Indonesian Tropical Animal Agriculture Vol 42, No 4 (2017): December
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.42.4.233-239

Abstract

This research is aimed to evaluate the nonlinear mathematical model in predicting the age and weight of Kebumen Ongole Grade (PO) cattle at puberty. The data used in this research was weight recordings of (768) PO cattle, ranging from calf (< 1 month) to adult (60 months), collected by Kebumen PO cattle Breeder Association (ASPOKEB) from 2013 to 2015. These cattle were reared by a group of farmers located in six sub-districts: Mirit, Lembu Purwo, Ambal, Puring, Petanahan, and Klirong in Kebumen district, Jawa Tengah Province. Brody, Bertalanfy, Logistic and Gompertz mathematical models were used to analyze the data. The analysis showed that the R2of the four models classify high in the category (R2 >0.70). Mature weight (A) of PO cattle predicted by Logistic (349 kg) and Gompertz (358 kg) were most appropriate. Out of the four models, the Logistic model was the most accurate in predicting the weight at puberty (174 kg) of PO cattle, but all observed cattle are still in the follicular phase.
Co-Authors Amrullah, A. H. K. C. T. Noviandi E. Handayanta, E. Fathoni, A. H. Hartadi Khusnudin, M. Kustono (Kustono) Kustono Kustono Maharani, D. N. Ngadiyono N. S. Adifa P. P. Putro, P. P. Pramono A., Pramono S. Sumadi