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PEMBUATAN PAKAN DENGAN MEMANFAATKAN LIMBAH KEPALA UDANG DI UNIT PELAYANAN TEKNIS PENGEMBANGAN TEKNOLOGI PERIKANAN BUDIDAYA KEPANJEN, KABUPATEN MALANG, JAWA TIMUR
Get PDFTujuan pemberian pakan pada ikan adalah menyediakan kebutuhan gizi untuk kesehatan yang baik, pertumbuhan dan hasil panen yang optimum, produksi limbah yang minimum dengan biaya yang masuk akal demi keuntungan yang maksimum. Pakan yang berkualitas gizi dan fisik merupakan kunci untuk mencapai tujuan-tujuan produksi dan ekonomis budidaya ikan. Pengetahuan tentang gizi ikan dan pakan ikan berperan penting di dalam mendukung pengembangan budidaya ikan (aquaculture) dalam mencapai tujuan tersebut.
Manfaat praktek kerja lapang ini adalah untuk meningkatkan wawasan, pengetahuan, pengalaman dan keterampilan tentang teknik pembuatan pakan mandiri dari limbah kepala udang yang difermentasi dan mengetahui fermentator apa saja yang digunakan dalam proses fermentasi serta hambatan dan permasalahan apa saja yang terjadi di UPT Pengembangan Teknologi Perikanan Budidaya Kepanjen.
Tepung limbah kepala udang merupakan limbah industry pengolahan udang yang terdiri dari kepala dan kulit udang. Proporsi kepala dan kulit udang diperkirakan berkisar antara 30-40 % dari bobot udang segar. Factor positif bagi tepung kepala udang adalah karena produk ini merupakan limbah, sehingga harganya relative murah dan kandungan nutrisinya pun bersaing dengan bahan baku lainnya.
Bahan pakan yang akan digunakan dianalisa proksimat untuk mengetahui kandungan nutrisinya. Kemudian, tentukan komposisi pakan antar perlakuan yang dihitung dengan metode uji coba. Proses pembuatan pakan dilakukan dari penyediaan bahan baku, bahan baku yang digunakan yaitu tepung kepala udang, bungkil kedelai, pollard atau dedak gandum, tepung jagung, tepung tapioka dan premix. Setelah itu menyusun ransum, setelah ransum disusun dilanjutkan dengan penghalusan bahan dan pencampuran bahan, setelah bahan tercampur dilakukan fermentasi selama 2-3 hari. Setelah di fermentasi dilanjutkan dengan pengukusan, pencetakan pakan, pengeringan pellet dan pengemasan pellet.
Pada proses fermentasi, fermentor yang digunakan adalah probiotik (0,73%) yang didalamnya terdapat beberapa mikroba seperti Lactobacillus sp. dan Bacillus sp. dan ditambah dengan tetes atau molase
Identifikasi, Prevalensi Dan Intensitas Cacing Endoparasit Ikan Kerapu Lumpur (Epinephelus Tauvina) Dari Hasil Tangkapan Di Tpi Mayangan Probolinggo
Get PDFTempat Pelelangan Ikan (TPI) Mayangan Probolinggo merupakan tempat pendaratan ikan terbesar kedua di Jawa Timur. Hasil tangkapan laut nelayan di TPI Mayangan di dominasi oleh kelompok ikan pelagis yang memiliki nilai ekonomi tinggi, salah satunya adalah ikan kerapu lumpur (Epinephelus tauvina). Berdasarkan data statistik UPT Pelabuhan dan Pengelolaan Sumberdaya Kelautan dan Perikanan Mayangan menunjukkan hasil produksi ikan kerapu di Probolinggo semakin menurun. Salah satu faktor yang menurunkan produksi dan populasi ikan adalah penyakit. Timbulnya penyakit pada ikan dapat disebabkan oleh adanya interaksi antara organisme patogen, inang (ikan) dan faktor lingkungan. Tujuan penelitian ini adalah untuk mengetahui prevalensi, intensitas dan spesies cacing endoparasit yang menginfeksi ikan kerapu lumpur (Epinephelus tauvina) dari hasil tangkapan di TPI Mayangan Probolinggo. Pemeriksaan parasit dilakukan di Laboratorium Fakultas Perikanan dan Kelautan Universitas Airlangga.Penelitian ini menggunakan metode survei. Pengambilan sampel dilakukan secara random sampling dan data dianalisis secara deskriptif dalam bentuk gambar dan tabel. Hasil penelitian menunjukkan bahwa dari 80 ekor sampel yang diambil di TPI Mayangan Probolinggo terdapat 20 ekor ikan kerapu lumpur yang terserang cacing Anisakis simplex pada saluran pencernaan. Tingkat prevalensi Anisakis simplex sebesar 25% termasuk dalam kategori Often atau sering dan tingkat intensitas Anisakis simplex sebesar 1,25 parasit/ekor termasuk dalam kategori rendah
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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