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All Journal Majalah Ilmiah Peternakan 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 Biochemistry, Genetics & Molecular Biology 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.
INCREASE THE LITTER SIZE OF BALI SOWS USING P.G. 600 INJECTION AND FLUSHING IN THE FORM OF GLUCOSE Suyadnya, P.
Majalah Ilmiah Peternakan Vol 10 No 1 (2007)
Publisher : Fakultas Peternakan Universitas Udayana

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SUMMARY The aim of this study was to increase the litter size of Bali sows using P.G. 600 injection and flushing in the form of glucose. A total of 32 Bali sows and one mature Bali boar were used. All of the Bali sows have farrowed twice. This study used Completely Randomized Design (CRD) with 2 x 2 Factorial arrangement. P.G. 600 as the first factor (H) was divided into two, i.e. without injecting P.G. 600 (H0) and with injecting P.G. 600 (H1). Flushing as the second factor (F) was also divided into two, i.e. without flushing (F0) and with flushing (F1). Thus, there were four treatment combinations in this study, namely, H0F0 (Control), H0F1 , H1F0 , and H1F1 , with eight replications. A total of 10 ml P.G. 600 or 800 i.u. FSH and 400 i.u. LH was administered to each sow by subcutaneous injection behind the ear immediately after weaning its piglets. Flushing to each sow was started at weaning its piglets until the time of mating by adding 400 g of glucose a day to the basal ration. The result of this study showed the average litter size of Bali sows receiving combined treatments H0F0 (Control), H0F1 , H1F0 , and H1F1 were 6.63 + 1.51, 7.63 + 1.30, 7.50 + 1.07 and 9.50 + 1.41 piglets. The total litter weights at birth per-sow were 3.063 + 0.658, 4.547 + 0.707, 3.453 + 0.596, and 5.191 + 1.293 kg; and the average birth weights per-individual were 0.472 + 0.093, 0.604 + 0.101, 0.466 + 0.094, and 0.560 + 0.093 kg, respectively. Statistical analysis showed, the effect of injecting P.G. 600 (H1F0) increased significantly (P < 0.05) the litter size of Bali sows, however, the litter weight at birth per-sow and birth weigth per-individual were not affected. Both effects of flushing (H0F1) and treatment combination of P.G. 600 injection and flushing (H1F1) increased significantly (P < 0.05) the litter size, litter weight at birth per-sow and birth weight per-individual of Bali sows. There were no interaction effects observed between treatments to the all of variables recorded on this study.
EFFECT OF TIME AND FREQUENCY OF MATING TO THE NUMBER AND MORTALITY OF EMBRYOS IN BALI GILTS Suyadnya, P.
Majalah Ilmiah Peternakan Vol 9 No 2 (2006)
Publisher : Fakultas Peternakan Universitas Udayana

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SUMMARY The aim of this study is to ascertain, when the time and frequency of mating should be carried out in Bali gilts to minimize embryonic mortality. A total of 18 Bali gilts and one mature Bali boar were used on this study. This study used Completely Randomized Design (CRD) with three treatments and six replications. Treatment 1 (T1) was a single mating on day-1 of estrous; Treatment 2 (T2) was a single mating on day-2 of estrous; Treatment 3 (T3) was double matings on day-1 and day-2 of estrous. Calculations on the number and mortality of embryos were carried out on day-25 of gestation. The percentage of embryonic mortality was known by calculating the difference between the number of corpora lutea in the ovary and the number of embryos the in uteruse divided by the number of corpora lutea in the ovary, multiplied by 100%. The result of this study showed the average number of embryos in Bali gilts in T1, T2 and T3 was 2.66, 7.00 and 7.17 embryos, whereas the average mortality of embryos in T1, T2 and T3 was 70.14%, 24.45%, and 21.13%, respectively. There was a significant (P < 0.05) increase in the embryo number when a single mating was conducted on day-2 of estrous and highly significant (P < 0.01) when a double mating was conducted on day-1 and day-2 of estrous in Bali gilts. On the contrary, there was a highly significant (P < 0.01) decrease in embryo mortality both on a single mating on day-2 of estrous or a double mating on day-1 and day-2 of estrous compared to a single mating on day-1 of estrous.
Co-Authors D. A. WARMADEWI I.B. Sudana I.N.S. Sutarpa Ida Bagus Gaga Partama L. Oka P.A. Astawa