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All Journal E-Journal Of Animal Science Udayana University Journal of the Indonesian Tropical Animal Agriculture
P. Suyadnya
Faculty of Animal Science Udayana University, Jl. PB Sudirman, Denpasar, Bali
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Veterinary

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HERITABILITY ESTIMATE AND GENETIC RESPONSE TO SELECTION FOR YEARLING WEIGHT IN BALI CATTLE Warmadewi, D.A.; Oka, L.; Suyadnya, P.; Sudana, I.B.
E-Journal Of Animal Science Udayana University Vol 3, No 1, Tahun 2014
Publisher : E-Journal of Animal Science Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.954 KB)

Abstract

This study was carried out at Bali Cattle Breeding Centre (BPTU Sapi Bali) in Pulukan, Jembrana, Bali from March to November 2012. The aims of study were to estimate the heritability and genetic response to selection for yearling weight in Bali cattle. Records on 350 yearling weights of Bali cattle born from 2007 to 2011 at the Bali Cattle Breeding Centre were used in this study. The results showed that the average coefficient of variation for yearling weight of Bali cattle was 18.28%, the estimated heritability (h2) was 0.42 ± 0.19, and the selection intensity was 0.92.  This value ??indicated that selection for this trait might improve the genetic quality of Bali cattle particularly in their liveweight at one year old.  Estimation of genetic response (Rg) obtained in this study was 9.02 kg.  The average generation interval in this population was 4.48 years.  Therefore, response per year (Ry) for yearling weight in this breed of cattle was 2.01 kg.  Based on this response per year, prediction for response in the year 2010 and 2011 were 6.03 kg and 12.06 kg respectively.  It was concluded that the heritability estimate of yearling weight in Bali cattle was categorized high and selection for this trait responded effectivelly
EFFECT OF VITAMIN - MINERAL SUPPLEMENTATION IN COMMERCIAL FEED ON THE DIGESTIBILITY COEFFICIENT AND RUMEN FERMENTATION OF BALI CATTLE Astawa, P.A.; Partama, I.B.G.; Suyadnya, P.; Sutarpa, I.N.S.
Journal of the Indonesian Tropical Animal Agriculture Vol 36, No 1 (2011): (March)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.36.1.69-74

Abstract

The aim of this study was to find out the influence of vitamin-mineral supplementation ondigestibility and rumen fermentation in Bali cattle. The randomized block design with 4 treatments and 4replications were used in the research. In this study was used 16 Bali cattle with body weight around295.31+23.07 kg. Rations used in the treatments were Treatment A (control): rice straw ad libitum pluscommercial feed; Treatment B: Treatment A ration plus 0.2% vitamin-mineral in commercial feed;Treatment C: Treatment A ration plus 0.3% vitamin-mineral in commercial feed, and Treatment D:Treatment A ration plus 0.4% vitamin-mineral in commercial feed. Parameters measured were nutrientdigestibility, rumen metabolites and urinary allantoin. The results showed that supplementation ofvitamin-mineral at 0.2 - 0.4% in commercial feed did not increase the digestibility of dry matter, organicmatter, crude protein and crude fiber, except for dry matter and organic matter digestibilities at 0.2%supplementation (p<0.05). However, the vitamin-mineral supplementation increased concentrations ofpartial VFA and ammonia as well as for methane gas production, except for VFA and ammonia at 0.4%level. Vitamin-mineral supplementation at 0.2-0.4% level did not affected pH value of rumen fluid andurinary allantoin.
Co-Authors D. A. WARMADEWI I.B. Sudana I.N.S. Sutarpa Ida Bagus Gaga Partama L. Oka P.A. Astawa