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All Journal Jurnal Ilmu Ternak Veteriner WARTAZOA Indonesian Bulletin of Animal and Veterinary Sciences
Eko Handiwirawan
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Veterinary

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Performances of the first and second generation composite breed resulting from crossing between local Sumatra sheep and hair sheep. Subandriyo .; Bambang Setiadi; M Rangkuti; K Diwyanto; M Doloksaribu; Leo P Batubara; Endang Romjali; Simo Eliaser; Eko Handiwirawan
Jurnal Ilmu Ternak dan Veteriner Vol 3, No 2 (1998)
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v3i2.99

Abstract

Improving sheep productivity can be conducted by genetic improvement and improving environmental factors. Genetic improvement usually can be done by selection and creating composite or synthetic breed by crossbreeding. Composite breed created by crossbreeding between different breeds and followed by selection. The study of crossing between Sumatra sheep with fat-tail sheep from East Java, St . Croix hair sheep (US) and Barbados Blackbelly hair sheep has been carried out since 1986, and show that the crossbred are better in term of production and reproduction . In 1996/1997, the first generation (F1) of composite breed (KOM) has been created by crossing between Barbados Cross (BC) rams and St . Croix Cross (HC) ewes or reciprocally. The second generation (F2) of composite breed has been created by inter-se mating . However, F1-KOM and F2-KOM  vary in their performances, therefore selection should be conducted. The results showed that birth weight and weaning weight of crossing between BC rams and HC ewes tended to be heavier than those of reciprocal crossing between HC rams and BC ewes, but the differences were not significant (P>0 .05) . Birth weight and weaning weight of crossing between BC rams with HC ewes and reciprocal cross were 2.48 _+ 0.70 kg (n=791), 12 .50 _+ 3 .26 kg (n=640) and 2.37 _+ 0.62 kg (n=147), 12 .29 _+ 3.30kg (n=122), respectively . Meanwhile, observations of inter-se mating of Fl-KOM showed that the weight at the first mating was 26 .7 _+ 3.82 kg (n=80), age of dam at the first lambing was 15 .7 _+ 1 .73 months (n=83), weight at post-partum was 29 .86 _+ 3 .30 kg, and litter size at the first parity was 1 .43 _+ 0.59 (n=83) . The mean of age at the first mating of KOM was around 10 .7 months. Mean of mating weight at the second parity was 28 .29 +_ 3 .51 kg (n=11), age of dam at the  second lambing was 20.6 _+ 1 .99 month (n=11), post-partum weight was 26 .92 _+ 4.03 kg (n=11) and litter size was 1 .64 _+ 0.81 (n=11) . Weaning weight of Fl-KOM, F2-KOM, BC, HC and St. Croix (H) after adjusted by season, sex, age of dam and type of birth were significantly different among Fl-KOM with F2-KOM, BC, HC, and H. However, there were no significantly different among F2-KOM with BC and HC. The results of the study indicated that for improving selection respons, the corrections or adjustments of environmentally induced superiority (sex, type of birth and age of dam at lambing) for every genotype and certain generation should be conducted, in order to increase the rate of genetic improvement.   Key words : Composite breed, first generation, second generation
Potencyand Geneticdiversity of Bali Cattle Eko Handiwirawan; Subandriyo .
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 14, No 3 (2004): SEPTEMBER 2004
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1116.118 KB) | DOI: 10.14334/wartazoa.v14i3.802

Abstract

Bali cattle are important indigenous cattle due to high population and wide spread in Indonesia. Increasing meat and cattle imports to fulfill the local demand should be able to motivate related parties to improve productivity of Indonesian cattle through good management, including Bali cattle. Several good characteristics are possessed by Bali cattle, particularly the adaptation capability in environment with poor feed quality and they possess good fertility. The government decision to determine Province of Bali is as a protected zone for other cattle breed in order to conserve Bali cattle is very reasonable considering that Indonesia is the gene center of Bali cattle and the first domestication place of Bali cattle . Genetic improvements ofBali cattle have been done at pure breed zone (Province of Bali) through selection and progeny testing at P3Bali and succeeds in obtaining cattle with good Estimated Breeding Value. Elite bulls obtained through the program are expected to be able to entirely improve Bali cattle in Indonesia through Artificial Insemination program. The improvement of genetic quality by crossing with Bos taurus and Bos indicus have been done at livestock sources regions and have been able to produce crossbred having good productivity as final stock. There is tendency to continuously improve the genetic composition ofBos taurus through artificial insemination at farmers level. The ideal genetic composition of crossbred needs to be evaluated to reach optimal genotype composition. Key words: Bali cattle, conservation, genetic improvement
Outermost Small Islands in Indonesia for Quarantine Area and Livestock Development Endang Sutedi; Iwan Herdiawan; Eko Handiwirawan
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 27, No 4 (2017): December 2017
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1189.032 KB) | DOI: 10.14334/wartazoa.v27i4.1692

Abstract

Indonesia has about 17,506 islands consisting of large and small islands. Outermost small islands are direct boundary of Indonesia with neighboring countries. These outermost islands have the potency to be used as quarantine area and for livestock development, especially beef cattle in order to support the development of food security of meat. Some of outermost islands are Jemaja island in Riau Province, Singkil island in Aceh Province and Naduk island in Bangka Belitung Province. Criteria to determine quarantine area and livestock development are availability of natural resources (fresh water and forage), free of contagious diseases, human resources, market access, and transportation. This paper describes about the condition and forage availability in those three islands and their surrounding area. Those islands have potential variety of forage with different carrying capacities. Type of grass that has been adapted in the outermost islands are Paspalum conjugatum, Axonopus compressus, Cynodon dactylon, Cynodon plectostachyus, and Panicum repens.
Co-Authors Agus Suparyanto Bambang Setiadi Bambang Setiadi C Sumantri C Sumantri Cece Sumantri Endang Romjali Endang Sutedi Endang Sutedi I Inounu Iwan Herdiawan Iwan Herdiawan K Diwyanto Leo P Batubara M Doloksaribu M Rangkuti R.R Noor Ronny R Noor Ronny Rachman Noor Simo Eliaser Subandriyo . Subandriyo . .