Feed Intake, Digestibility and Growth Performance of Horro Lambs Fed Natural Pasture Hay Supplemented Graded Level of Vernonia amygdalina Leaves and Sorghum Grain Mixture

No Abstract

A Study on the Physicochemical Properties of the Selected Ponds of Patna Town, Bihar, India

With the progress of the urbanization and industrialization, many types of water pollutants (such as pesticide, heavy metals, detergents, municipal wastes, domestic wastes and fertilizers) were generated. These pollutants were distributed into the environment by the different sources. These pollutants were distributed into the environment by the different sources. In this research paper, physicochemical characteristic of water samples from selected ponds in and around Patna, Bihar has been studied. The parameters observed were Temperature, pH, Electrical conductivity, Calcium, Phosphate, Total Hardness, Alkalinity, Chloride, Dissolved oxygen, Free CO2 and Nitrate. It can be concluded that the water parameters which were taken for the present study were above the pollution level of surface water which does not satisfy their requirement for the use of various purposes. In this investigation, a brief attempt has been made to study the extent of change in the quality of water in comparison to water quality standards of World Health Organization (WHO)

Aktivitas Anti Rayap Minyak Atsiri Dari Kulit Jeruk Citrus Nobilis Var.microcarpa Terhadap Rayap Tanah Coptotermes Curvignathus Holmgren

Coptotermes curvignathus Holmgren is an urban pest which builds carton nests in dark places. This termite is difficult to control due to difficulties of direct spraying to entire colony. The new methods for control subterranean termites such as used the essentials oil is a prospective study. This study aims to determine the bioactivity of essential oil of orange peel Citrus nobilis var .microcarpa and to determine the optimal level of inhibiting termites C. curvignathus. Essential oil made from peel of C. nobilis orange which macerated with methanol for 24 hours. Essential oil obtained was dissolved on filter paper at a dose of 0.1 ml; 0.2 ml; 0.3 ml; and 0.4 ml. Then this filter paper used to biossay to determine the effectiveness of essential oil to inhibited subterranean termites C. curvignathus. This process was conducted in three days. The results showed that the highest activity which caused 100% mortality of termite was obtained at dose 0.4 ml. The greater dose of essential oils of orange peel resulted in the highest mortality of termites and vice versa resulted the lowest percentage of paper weight loss. The optimal dose in the use of essential oils of orange peel of C. nobilis to inhibited the termites C. curvignathus was 0.2 ml. Keyword: Anti-termitic activities, essential oil, Citrus nobilis var. microcarpa, Coptotermes curvignathus Holmgren Keyword: Anti-termitic activities, essential oil, Citrus nobilis var. microcarpa, Coptotermes curvignathus Holmgre

Karakteristik Penyakit Tumor Buah Pada Tanaman Meranti Merah (Shorea Leprosula) Di Kebun Pangkas PT. Sari Bumi Kusuma Kecamatan Serawai Kabupaten Sintang

The research aimed to know gall myte diseased characteristic on plant Shorea leprosula at pruning yard. of PT. Sari Bumi Kusuma at Serawai district, sintang regency. Research desaign used Completely Randomized Design (CRD) and sample plant is placed at random in observing slot and data analysis used Khi square ( Chi Square ) with 3 treatments and 6 replications. First plant normal or untrimmed (A0), second treatment is trimmed (A1) and third treatment is trimmed plan and given by vaseline at sectioned plant which is trimmed (A2). Total plant that is utilized were 18 plants. Result of the research showed that 33% plants S. leprosula was attack by gall myte, disease for all treatment. Result tests of Chi Square pointing out that the treatment given is not significant. Disease gall myte can be seen on branch tip part plant, leaf armpit and autotrof. Initially just as bruise with circumference gall myte + 1cm and long + 0,5cm and green chromatic. Time range of appearance gall myte until ranging break tumor were 93 – 115 days. Key word : gall myte, Shorea leprosula, pruning yar

Bioaktivitas Ekstrak Daun Jeruk Purut (Citrus Hystrix Dc) terhadap Rayap Tanah (Coptotermes Curvignathus Holmgren)

Kaffir lime leaves (Citrus hystrix DC) has the potential to be used as a natural preservative especially an anti-termites. The study aims to evaluation the toxicity of extract of leaves C. hystrix against subterranean termites Coptotermes curvignathus Holmgren and to determine the optimal concentration of extract lime leaves on subterranean termite activity. Lime leaves were extracted using maceration method with methanol. Level of concentration were 0%, 2%, 4%, 6%, 8% and 10%. Filter paper soaked at each concentration thengive as a food source to subterranean termites. Bioassay tests were carried out for 21 days. Then mortality and filter paper weight loss was measured. The results showed the concentration level of 10% has the highest termite mortality with average value of 100% and has the lowest value of filter paper weight loss with a average value 13.48%. However, the optimal concentration was achieved at 8% due to the mortality rate reached 94% and the level of termite activity was classified as very strong. Keyword: Bioactivity anti-termites Citrus hystrix DC, Coptotermes curvignathus Holmgren, Methanol extract

Pengembangan Materi Pembelajaran Bilangan Berdasarkan Pendidikan Matematika Realistik Untuk Siswa Kelas V Sekolah Dasar

Penelitian ini bertujuan untuk menghasilkan materi pembelajaran matematika pada materi bilangan yang berdasarkan PMR dalam bentuk buku siswa yang valid, praktis, dan mempunyai potensial efek untuk siswa kelas V Sekolah Dasar. Metode penelitian yang digunakan adalah metode penelitian pengembangan yang terdiri dari analisis, desain, evaluasi dan revisi. Pengumpulan data dilakukan dengan cara analisis dokumen, wawancara dan tes. Subjek pada penelitian ini adalah siswa kelas 5C SD Negeri 117 Palembang yang berjumlah 41 orang. Dari hasil penelitian menunjukkan bahwa siswa sangat antusias dan senang dalam belajar, siswa juga memberikan sikap positif terhadap pembelajaran matematika yang dilihat dari komentar mereka, serta tes kemampuan mereka yang menunjukkan hasil baik dengan rata-rata 79,79 dimana 34 orang siswa (82,93%) memperoleh nilai ³ 66. Oleh karena itu, prototipe ketiga buku siswa yang peneliti disain menghasilkan materi pembelajaran bilangan yang valid, praktis, dan mempunyai potensial efek untuk siswa kelas V SD Negeri 117 Palembang dan dapat digunakan sebagai salah satu alternatif dalam pembelajaran bilangan

Aktivitas Antijamur Asap Cair Dari Sebuk Gergaji Kayu Akasia (Acacia Mangium Willd) Dan Kayu Laban (Vitex Pubescens Vahl)

Antifungal Activity of Liquid Smoke from Acacia mangium Willd and Vitex pubescens Vahl Wood Wastes. Aspergillus flavus is the most important fungi species because of its toxygenic characteristic on agricultural product. This research was conducted to test of wood vinegar as antifungal activity. The research was conducted in several steps i.e. pyrolisis of liquid smoke, analysis of liquid smoke content, and efficacy test of liquid smoke as antifungal. Liquid smoke was made from burning wood meal from wood wastes. Wood wastes consist of Acacia mangium Willd (akasia) and Vitex pubescens Vahl (laban). Agar media used was PDA (potatoes dextrose agar) and concentration of liquid smoke was 0, 1, 2, and 3% (v/v). The results indicated that the liquid smoke has inhibited the fungi growth. The liquid smoke with concentration of 2% had index anti fungal 80.19-100%. The growth rate of A. flavus was decrease as well as increasing the concentration of liquid smoke. The contents of organic fraction of liquid smoke, such as acid and phenol might be responsible for the difference in antifungal activities among these liquid smokes

Pengendalian Jamur Penyebab Busuk Benih Tusam (Pinus Merkusii Jungh Et De Vriese) dengan Asap Cair Kayu Laban (Vitex Pubescens Vahl)

This study aims to determine the effectiveness of liquid smoke from Laban wood for controlling fungi that cause damping off on pine seeds and to determine the optimal concentration and temperature of pyrolysis of liquid smoke from Laban wood. The experiment was conducted at the Laboratory of Wood Technology, Faculty of Forestry, University of Tanjungpura Pontianak. Mucor sp is the species of fungi which used to in vitro test to determine the inhibition value. Research using RAL Factorial methods with two treatment factors, first treatment factor is the concentration of liquid smoke from Laban wood with 5 levels i.e. 0%, 2.5%, 5%, 7.5%, and 10%. The second treatment factor is the temperature of the pyrolysis liquid smoke of Laban wood with 3 levels i.e. 350ºC, 400ºC and 450ºC. Five replicates are conducted for all treatments. Tests carried out using a PDA medium mixed with liquid smoke from Laban wood with each concentration. Results of research showed that the concentration of liquid smoke from Laban wood is very significant effect on the inhibition of the growth of the fungus Mucor sp. Meanwhile the pyrolysis temperature and the interaction of liquid smoke from Laban wood had no significant effect. Liquid smoke from Laban wood at a concentration of 10% with a pyrolysis temperature of 400°C is the best treatment because it can inhibited the growth of fungal Mucor sp. with the highest value (96.33%). This antifungal activity rate fulfills the very strong category inhibition. Liquid smoke from Laban wood can be used as biopesticide to overcome damping off fungi on Pine seed. Keywords : Laban wood, Mucor sp., liquid smoke, damping off, Pinus merkusi

Kualitas Papan Komposit Batang Kelapa Sawit (Elaeis Guineensis Jacq) Dan Limbah Plastik Polipropilena Berbagai Variasi Rasio Dan Penambahan Maleic Anhydrid Composite Boards From Oil Palm Trunks (Elaeis Guineensis Jacq) and Polypropylene Plastic Waste In

Wood is a basic requirement in the industrial activity. while timber production decreased so that required an efficient utilization of wood. The solution to overcome this problem is the use of waste oil palm trunk in the form of composite board. On the other hand, the plastic needs continue to increase. Plastic is a material consisting of artificial inorganic chemicals are quite harmful to the environment so it is necessary to increase the value of plastic. In the process of making this composite board using maleic anhydride (MAH) in order to improve the bonding between the fibers. This study aims to determine the quality of the composite board made from oil palm trunk (Elaeis guineensis Jacq) and polypropylene plastic waste on some variation of the ratio and the percentage of maleic anhydrid (MAH). Variation ratio of plastic and particles were 40 : 60, 50 : 50, and 60 : 40. Percentage of MAH used 0%, 2,5%, and 5% of the weight of the plastic. Composite board size was 30 cm x 30 cm x 1 cm with a target density of 0.8 g/cm3 at compression 25 kg/cm2 with temperature 180ºC for 10 minutes. Evaluation the quality of composite board was refer to standard JIS A 5908-2003. This study used afactorial experiment in a completely randomized design with 2 factors and 3 replications. The result of research showed that the highest guality of composite board was achieved on the highest plastic ratio. The best result was on composite board made from ratio particle oil palm and plastic 40:60 with percentage MAH 2,5%. Keywords : Oil palm particle, plastics polipropilena, MAH, BPO, composite board ABSTRACT Wood is a basic requirement in the industrial activity. while timber production decreased so that required an efficient utilization of wood. The solution to overcome this problem is the use of waste oil palm trunk in the form of composite board. On the other hand, the plastic needs continue to increase. Plastic is a material consisting of artificial inorganic chemicals are quite harmful to the environment so it is necessary to increase the value of plastic. In the process of making this composite board using maleic anhydride (MAH) in order to improve the bonding between the fibers. This study aims to determine the quality of the composite board made from oil palm trunk (Elaeis guineensis Jacq) and polypropylene plastic waste on some variation o