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All Journal Jurnal Peternakan Sriwijaya Jurnal Veteriner Anakes: Jurnal Ilmiah Analis Kesehatan Journal of Tropical Biodiversity
Harini Nurcahya Mariandayani
Universitas Nasional
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Veterinary

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Journal : Journal of Tropical Biodiversity

 1 
Identification of Polymorphism Growth Hormone Gene in Local Chickens Resulting from Three Breed Crosses Harini Nurcahya; Sri Darwati; Isyana Khaerunnisa; Ida Wiryanti
Journal of Tropical Biodiversity Vol 1 No 2 (2021): April 2021
Publisher : Universitas Nasional Jakarta

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Abstract

Local chicken has an important role as a source of animal protein producing eggs and meat. Local chicken has the advantage of being able to adapt to hot weather and be more resistant to disease. However, there are still weaknesses, namely relatively slow growth and relatively low egg production. Therefore, one way to overcome these weaknesses is by holding selection and crossing. Local chickens used for crossing in this study were sentul, kampung and kedu chicken. In connection with the growth of chickens that are slow and low in productivity of local chickens, it is necessary to examine the factors that influence growth and productivity. The hormones that have an effect on growth are GH (Growth Hormone), so that the characteristics of the gene of growth in local chickens from the cross can be known.The purpose of this study was to detect the characteristics of the Growth Hormone gene in local chickens resulting from Three Breed Crosses . The research material used in this study was forty local chickens produced by cross-sentul, kampung and kedu chicken. To find out GH gene polymorphism is by PCR-RFLP with cutting enzyme EcoRV.The results of the GH gene study in sentul, kampung and keducrossed chickens are polymorphic and are in the Hardy-Weinberg equilibrium state. Kampung chicken cross population was polymorphic for GH|EcoRV loci and the GG genotype was predominant in this population. G allele frequency in kampung,kedu and sentul chicken cross population is higher than the A allele. The highest genetic diversity was observed at kampung,kedu and sentul chicken cross and the heterozygosity value was lowcategory.
Meat Physical Characteristic of Sentul Kampung Kedu Crossing (Skkedu) Harini Nurcahya; Sri Darwati; Nur Widayanti
Journal of Tropical Biodiversity Vol 3 No 1 (2022): December 2022
Publisher : Universitas Nasional Jakarta

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Abstract

Sentul and kampung chicken are known as dual-purpose chicken, and kedu chicken is as laying hens. The crossing of sentul, kampung and kedu chicken produced SKKedu chicken. The crossing is expected to be produced local chickens that have superior meat quality from the combination of the three types of chicken. This study aimed to analyze the physical quality of SKKedu chicken meat. Tests were carried out on the flesh of the chest, upper thighs and lower thighs of 12 SKKedu chickens aged 12 weeks. Analysis of the meat physical characteristics included 4 variables pH value, cooking shrinkage, tenderness, and percentage of water binding power. The pH value of SKKedu meat in the upper thighs and lower thighs were the same (P> 0.05), while the breast meat was significantly different (P <0.05). The tenderness is only done on breast meat and obtained a value of 2.86 ± 0.50 kg cm-2. The different parts of meat did not have a significant effect (P> 0.05) on cooking losses of SKKedu chicken meat. Power binding to water (DMA) of breast and lower thigh meat was different (P <0.05) with the best DMA in the lower thighs. SKKedu chicken meat was still quite tender.
Growth Performance Of Merawangarab Chicken With Different Feed Composition Sri Darwati; Ilham Rizki; Harini Nurcahya
Journal of Tropical Biodiversity Vol 3 No 1 (2022): December 2022
Publisher : Universitas Nasional Jakarta

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Indonesia has a variety of local chicken famincluding merawang chicken and arabic chicken. Merawang chickens have potential as dual-purpose type chickens and laying types for arabic chickens. Crossing the merawang chicken with arabic chicken is expected to be an alternative to increase the productivity of local Indonesian chickens through increasing the genetic material of local chickens and developing local chickens. Appropriate feed supports livestock productivity performance. This study aimed to examine the growth performance of merawangarab chickens with 50% merawang and 50% arabian genetic composition fed mixed feeds with commercial feed compositions for broilers with different rice bran from the 4th week to the 12th week. The number of DOC used as many as 80 tails and not differentiated by sex, 60% of the feed used; 80%: 100% commercial broiler feed for starter phase mixed with 40% rice bran; 20%; 0%. The study used a Randomized Block Design (RAK) with a hatching period as a group. The variables measured were feed consumption, body weight, feed conversion, and mortality. Feed and drinking water are provided ad libitum. The results showed that the performance of merawangarab chickens with different compositions of commercial feed and rice bran was the same (P>0.05) for all growth variables. The average body weight at 12 weeks of age was 1064.6-1167.8 g. In conclusion, the growth of merawangarab chicken by replacing commercial feed up to 40% with rice bran is still good.
Co-Authors Cece Sumantri Hadits Lissentiya Armal Ida Wiryanti Ida Wiryanti Ilham Rizki Istiana Annisa Isyana Khaerunnisa Nur Widayanti Sri Darwati Sri Sulandari TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN