Judul: Models of leave-tea plucking schedule (the case study on perkebunan gunung mas ptpn viii west java)
Abstrak: AMALIA RESTIATI. Models of Leave-Tea Plucking Schedule (The Case Study on Perkebunan Gunung Mas PTPN VIII West Java). Under the direction of MARIMIN, MACHFUD, and MUHAMMAD ZEIN NASUTION. The purpose of this research is to formulate scheduling model of leave-tea plucking, at which Gunung Mas Plantation, West Java is used as the case study. Linear programming and fuzzy linear programming were used as the basis for the model formulation. The objective function of linear programming formulation is to maximize leaves production with two constraints. The first constraint is the extent of plucking area and the second one is numbers of pluckers. The solutions of this scheduling model are maximum values of leaves production which are achieved by using LINDO. In this case, fuzzy linear programming gives better results than non-fuzzy linear programming because it is relevant with the condition of the plantation. Productivities of tea are higher in rainy seasons than dry season. The productions of tea leaves increase in the second and third pruning year (TP 2 and TP 3) and decrease in the fourth year (TP 4). There were two scenarios involved in this research. Scenario 1 is aimed to maximize leaves production in order to meet plant capacity. Scenario 2 has an objective to maximize the extent of plucking area to increase leaves production that could also reach plant capacity. The result of Scenario 1 shows that daily maximum productivity which must be reached by Gunung Mas is 912,72 kg/ha to 2.500 kg/ha (in dry season) and 363,27 kg/ha to 4.266,67 kg/ha (in rainy season) in order to meet plant capacity. While the result of Scenario 2 shows that maximum width of area which must be plucked by the plantation per day is 119,31 ha to 288,34 ha (in dry season) and 64,96 ha to 222,41 ha (in rainy season) in order to meet plant capacity.
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Judul: Manual and Machine Picking for Tea (Camellia sinensis (L) O. Kuntze) Production in Wonosari Plantation, PTPN XII, Malang, East Java
Abstrak: Teh merupakan komoditi hasil perkebunan yang mempunyai peranan cukup penting dalam kegiatan perekonomian Indonesia. Pemetikan merupakan kegiatan mengambil sebagian dari tunas dan daun yang masih muda untuk diolah menjadi teh kering. Kegiatan magang dilaksanakan pada bulan Januari-April 2021 di Kebun Wonosari, PT Perkebunan Nusantara XII (Persero), Malang, Jawa Timur. Kegiatan magang bertujuan untuk mempelajari kegiatan budidaya teh secara teknis dan manajemen, terutama mengenai pemetikan tanaman teh untuk mendapatkan produktivitas yang tinggi dan pucuk dengan mutu yang baik. Metode yang digunakan adalah metode langsung dan tidak langsung. Hasil pengamatan menunjukkan bahwa tinggi bidang petik dan diameter bidang petik semakin bertambah seiring dengan bertambahnya umur setelah pangkas. Tinggi dan diameter bidang petik di Afdeling Wonosari sudah sesuai dengan tinggi dan diameter yang ideal untuk tanaman teh. Potensi pucuk dengan mutu yang baik (pucuk peko) lebih banyak terdapat pada areal pemetikan manual dibanding areal pemetikan mesin. Gilir petik pada pemetikan manual (10-13 hari) lebih cepat dibanding gilir petik pada pemetikan mesin (22-26 hari). Rata-rata kapasitas petik mesin lebih besar yaitu 83,58 kg HOK-1 dibandingkan rata-rata kapasitas petik manual sebesar 43,59 kg HOK-1. Kapasitas pemetik manual dipengaruhi oleh umur pemetik dan tidak dipengaruhi oleh lama pengalaman kerja, dan gender pemetik. Hasil perhitungan menunjukkan tenaga petik dilapang pada kedua metode masih kurang, Analisis petik dan analisis pucuk belum memenuhi standar perusahaan. Analisis petik pada pemetikan manual yaitu petikan halus 3,61%, petikan medium 45,18%, dan petikan kasar 51,22%. Pada pemetikan mesin yaitu petikan halus 3,10%, petikan medium 39,46%, dan petikan kasar 57,40%. Analisis pucuk yang memenuhi syarat pada pemetikan manual sebesar 57,85%, sedangkan pada areal pemetikan mesin pucuk yang memenuhi syarat sebesar 56,21%. Mutu dari kedua metode pemetikan masih di bawah standar, sedangkan kuantitas teh lebih tinggi menggunakan mesin. Pemetikan secara manual dan mesin perlu dilakukan pengembangan seperti pelatihan dalam kegiatan pemetikan agar memperoleh kuantitas dan kualitas pucuk yang optimal., Tea is a plantation product commodity that has an important role in Indonesia's economic activities. Picking is an activity to take some of the young shoots and leaves to be processed into dry tea. Internship activities carried out in January to April 2021 at Kebun Wonosari, PT Perkebunan Nusantara XII (Persero), Malang, East Java. The internship activity aims to learn technical and management tea cultivation activities, especially regarding picking tea plants to get high productivity and shoots with good quality. The methods used are direct and indirect methods. The results of the observations showed that the height of the picking field and the diameter of the picking field increased with increasing age after pruning. The height and diameter of the picking fields in Afdeling Wonosari are in accordance with the ideal height and diameter for tea plants. There are more potential shoots with good quality (peko shoots) in the manual picking area than in the machine picking area. Picking time management plucking manual (10- 13 days) faster than picking time management quotes on plucking machine (22-26 days). The average picking capacity for machine plucking reached 83.58 kg HOK-1 and the average picking capacity for manual plucking reached 43.59 kg HOK-1. The capacity of the manual pickers influenced by
Keyword: picking shift, skill, shoot quality, shoot potential, picker age

Judul: Infeksi Cacing Jantung Dirofilaria Immitis, Railliet & Henry, 1911 Pada Anjing
Abstrak: Cacing Dirofilaria immitis dewasa yang tinggal dalm ventrikel kanan jantung anjing, sering kali menimbulkan gejala klinis yang cukup berat. Cacing Tersebut menghasilkan mikrofilaria yang selanjutnya berkembang menjadi larva infektif dalam saluran malphigi induk semang entara, yaitu nyamuk dari genus Culex, Aedes dan Anopheles.
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