https://ejurnal.undana.ac.id/index.php/nukleus/issue/feedJURNAL NUKLEUS PETERNAKAN2025-07-13T10:39:52+00:00Thomas Mata Hinetomhin050566@gmail.comOpen Journal Systems<p style="text-align: justify;">Print ISSN: 2355-9942<br>Electronic ISSN: 2656-792X <br>DOI: https://doi.org/10.35508/nukleus</p> <p style="text-align: justify;">Jurnal Nukleus Peternakan (JNP) is the premier journal for animal science and serves as the leading source of new knowledge and perspective in this area. JNP publishes more than 10 fully research articles, and invited reviews each year. Articles published in JNP encompass a broad range of research topics in animal production and fundamental aspects of genetics, reproduction, socioeconomic of livestock, nutrition, physiology, and preparation and utilization of animal products. Articles typically report research with beef cattle, goats, horses, pigs, and sheep; however, studies involving other farm animals, aquatic and wildlife species, endangered animals, and laboratory animal species that address fundamental questions related to livestock and companion animal biology will be considered for publication.</p>https://ejurnal.undana.ac.id/index.php/nukleus/article/view/23021STRATEGI PENGEMBANGAN USAHA TERNAK SAPI POTONG DI KABUPATEN KUPANG, PROVINSI NUSA TENGGARA TIMUR (Beef Cattle Business Development Strategy in Kupang District, East Nusa Tenggara Province)2025-07-12T00:29:34+00:00Morin Mediviani Solufmorin_soluf@staf.undana.ac.idDiana Meliani Sabatdiana.sabat@staf.undana.ac.id<p>The purpose of this study is to identify various internal and external factors and determine the appropriate strategy for the development of beef cattle in Kupang District. This study employs both quantitative and qualitative approaches, with respondents selected through purposive sampling. The data collected were analyzed using SWOT analysis to identify Internal Factor Evaluation (IFE) and External Factor Evaluation (EFE), and the Quantitative Strategic Planning Matrix (QSPM) to determine the primary strategic alternatives. The analysis results indicate that beef cattle farming in Kupang Regency has three strengths, three weaknesses, three opportunities, and four threats. Based on the SWOT analysis, the IFE value is 3,39 and the EFE value is 2,43 reflecting the potential for beef cattle development. The results of the QSMP analysis indicate that the recommended priority strategy is to diversify marketing channels and institutions by leveraging the strengths of farmers to address threats such as long marketing chains, inadequate infrastructure conditions, and price fluctuations through institutional strengthening and marketing chain efficiency. The conclusion of this study is that beef cattle farming in Kupang District is in a strong internal position to face external threats with the priority strategy of diversifying distribution and institutional structures.</p>2025-07-12T00:29:34+00:00##submission.copyrightStatement##https://ejurnal.undana.ac.id/index.php/nukleus/article/view/23016RESPON KANDUNGAN ISOFLAVON DAIDZEINPADA LEGUM Alysicarpus vaginalis TERHADAP VARIASI DOSIS PUPUK FOSFOR (Response of Daidzein Isoflavone Content in Alysicarpus vaginalis Legume to Variations in Phosphorus Fertilizer Doses)2025-07-12T02:44:36+00:00Prihutomo Suhartoprihutomo_suharto@staf.undana.ac.idRahmat Gusrirahmat_gusri@staf.undana.ac.idI Kadek Yoga Kertiyasai_kertiyasa@staf.undana.ac.idI Putu Gede Didik Widiartadidikwidiarta9@gmail.com<p>This study is grounded in the significance of daidzein as a phytoestrogen with potential to enhance livestock reproductive performance, while its availability in conventional feed ingredients remains limited. <em>Alysicarpus vaginalis</em> is a local legume species exhibiting relatively high phenolic and flavonoid compounds, including isoflavones, making this information crucial for developing phytogenic based functional feed. This research aimed to evaluate the effect of varying phosphorus fertilizer doses on daidzein isoflavone content in <em>Alysicarpus vaginalis</em>. An experimental study was conducted using a Completely Randomized Design (CRD) with five phosphorus dose treatments (0, 10, 20, 30, and 40 kg P/ha) and three replications. The methodology included: (1) isoflavone extraction via 70% ethanol maceration, (2) extract concentration using a rotary evaporator, and (3) quantitative analysis of daidzein content in phosphorus fertilized <em>Alysicarpus vaginalis</em> using High-Performance Liquid Chromatography (HPLC). Increasing phosphorus doses (0–40 kg P/ha) significantly (P<0.05) elevated daidzein content from 0.0922 g/100 g sample (control, 0 kg P/ha) to 2.9978 g/100 g sample at the highest dose (40 kg P/ha). Statistical analysis revealed a strong positive correlation between phosphorus dosage and daidzein accumulation (R² = 0.985). Phosphorus fertilizer application enhances daidzein production in <em>Alysicarpus vaginalis</em>, implying potential for functional feed development to support livestock health and productivity.</p>2025-07-12T02:44:35+00:00##submission.copyrightStatement##https://ejurnal.undana.ac.id/index.php/nukleus/article/view/19460VARIASI INDIVIDU TERHADAP KUALITAS SEMEN SEGAR KALKUN (Individual Variation in Turkey’s Fresh Semen Quality)2025-07-12T13:51:56+00:00Annisa Rahmiannisa.rahmi@unida.ac.idAgung Puji Haryantoagungph@gmail.comFirly Adistyafirlyadistya16@gmail.coAdiba Kanza Arasyaadiba.kanza167@gmail.comAbdullah Baharunabdullah.baharun@unida.ac.id<p>Turkey is a kind of poultry with a special meat taste and higher meat protein than other poultry meat. Indonesia have limited turkey’s population because they has problem in reproduction efficiency is significant different in body weigh between male and female. Artificial insemination practices can be a solution for turkey’s reproduction efficiency problem. However, artificial insemination needs spermatozoa with good quality to fertilize the ovum. The individual gobbler (male turkey) could produce semen with different quality even though kept in same environtment condition. This study aim to evaluate individual variation impact to turkeys fresh semen quality. The fresh semen collected from 4 turkeys bronze breed in 8-12 months age, with massage technique two times a week. The macroscopic (volume, pH, colour, consistency) and microscopic (concentration, motility, viability, abnormality) examination become the observed variables. The result shows there are individual variation in variables are volume, pH, and sperm concentration from fresh semen. The result of this study can provide basic information about turkey’s fresh semen quality with individual variation.</p>2025-07-12T13:51:56+00:00##submission.copyrightStatement##https://ejurnal.undana.ac.id/index.php/nukleus/article/view/23143KAJIAN USAHA PETERNAKAN BABI DAN PEMASARANNYA DI KOTA KEFAMENANU, KABUPATEN TIMOR TENGAH UTARA (STUDI KASUS DI PETERNAKAN INDOMOR FARM) (Study of Pig Farming and Marketing in Kefamenanu City, Timor Tengah Utara Regency - Case Study at Indomor Farm)2025-07-13T04:11:14+00:00Yulius Hembiyuliushembi99@gmail.comF. Y.D. Kadjufransiskus_dhewa@staf.undana.ac.idJ. Sahalajsahala@gmail.comT. Simamoratsimamora@gmail.comR. Gusrirgusri@gmail.com<p>The development of the livestock sub-sector generally aims to increase farmers' income, accelerate the availability of quality food, and ensure meat quality, especially pork, so that it can be consumed by the community with optimal nutritional content. Pig farming is one of the livestock businesses that has long been popular among the people in the province of East Nusa Tenggara, especially in Kefamenanu City, Timor Tengah Utara Regency. The objective of this study is to identify pig farming businesses and their marketing systems in Kefamenanu City. The research was conducted at Indomor Farm as a case study of pig farming businesses in Kefamenanu City. The method used in this study was a survey analyzed descriptively with a quantitative approach. Based on the analysis results, it can be concluded that: (1) There is only one marketing channel pattern for pork in Kefamenanu City, namely: Farmer - Livestock Slaughterer/Retailer - Consumer; and (2) The margin per kilogram of output produced by the pork marketing institution is Rp63.555,55 for farmers and Rp8.855,84 for livestock slaughterers/retailers. Overall, the pig farming business in Kefamenanu City is a viable and profitable venture to undertake.</p>2025-07-13T04:11:13+00:00##submission.copyrightStatement##https://ejurnal.undana.ac.id/index.php/nukleus/article/view/15322TINGKAT MINAT PETERNAK SAPI POTONG DALAM PENERAPAN TEKNOLOGI INSEMINASI BUATAN DI KECAMATAN ASEMBAGUS KABUPATEN SITUBONDO (Level of Interest of Beef Cattle Farmers in the Application of Artificial Insemination in Asembagus District, Situbondo Regency)2025-07-13T06:33:24+00:00Isbat Aliisbat.ali74@student.unud.ac.idNi Luh Gde Sumardaninlg_sumardani@unud.ac.idNi Wayan Tatik Inggriatitatikinggriati@unud.ac.id<p>Breeders interest influences the adoption rate of artificial insemination. This research aims to determine the factors related to the level of interest of breeders in implementing artificial insemination (AI) technology to increase the beef cattle population in Asembagus District, Situbondo Regency. This research was conducted using a survei method with a total of 96 farmer respondents. The data sources used are primary and secondary data. Data was collected through observation, in-depth interviews with the help of questionnaires. The analysis used was, 1) test the validity and reliability test of the questionnaire’s feasibility, 2) test the analysis prerequisites to the determine the parametric and non-parametric statistical values of the questionnaire data, and 3) multiple linear regression containing the T test, F test, R (correlation coefficient) and r2 (coefficient of determination) was to determine the effect of the independent variable on the dependent variable. The results of the three data analyses show that non-formal education has the lowest positive influence (11.94%), farming experience has a negative influence (14.61%), community environment has a positive influence (18.32%), and age has the largest positive influence (19.55%). Older breeders have a deeper understanding and experience regarding AI. The conclusion of this research was that the age of the farmer influences the level of interest of beef cattle breeders in Asembagus district Situbondo regency in implementing AI technology.</p>2025-07-13T06:27:55+00:00##submission.copyrightStatement##https://ejurnal.undana.ac.id/index.php/nukleus/article/view/20385EFFECT OF FEEDING ODOT GRASS (PENNISETUM PURPUREUM CV. MOTT) SILAGE WITH RICE STRAW AS ABSORBENT ON FEEDING BEHAVIOR OF KACANG GOATS (Pengaruh Pemberian Silase Rumput Odot (Pennisetum Purpureum cv. Mott) dengan Jerami Padi Sebagai Absorban Terhadap.....)2025-07-13T10:39:52+00:00Novendi Atamaunatamau@gmail.comI Gusti Ngurah Jelantikigustingurahjelantik@staf.undana.ac.idImanuel Benuibenu@gmail.com<p>The aim of this experiment was to determine the effect of feeding odot grass silage (Pennisetum Purpureum cv. Mott) with different levels of rice straw as absorbant on feeding behavior of Kacang goats. Four kacang goats, ranging from 1-1.5 year old with initial body weight of 20.2 kg-22.9 kg, were used in this study using Latin Square Design (RBSL) 4 x 4 with 4 treatments and 4 periods as replications. The treatments were JP0: 100% odot grass silage, JP10: 90% odot grass and 10% rice straw silage, JP20: 80% odot grass and 20% rice straw silage and JP30: 70% odot grass and 30% rice straw silage. The measured variables included the frequency and eating time, frequency and ruminating time, and frequency and resting time. The data obtained were analyzed using Analysis of Variance (ANOVA). The results showed that treatment had no significant effect (P>0,05) on the measured variables. The duration and frequency of feeding ranged from 4.34 to 5.42 hours and 16.50 to 19.87 times per day, duration and frequency of rumination ranged from 11.39 to 14.25 hours and 39.62 hours to 41.87 times per day, and the length and frequency of rest ranged from 5.43 to 7.56 hours, and 30.62 to 32.50 times per day. In conclusion, feeding odot grass silage with different levels of rice straw as an absorbant did not affect the feeding behavior of kacang goats.</p>2025-07-13T10:39:52+00:00##submission.copyrightStatement##