Kelimpahan plankton pada budidaya udang vaname (Litopenaeusvannamei) dengan kepadatan berbeda di tambak lahan pasir (Plankton abundance on white leg shrimp (Litopenaeus vannamei) cultivation with different stocking densities in sand land)
Maggot atau larva dari lalat black soldier fly (Hermetia illucens) merupakan salah satu alternatif pakan yang memenuhi persyaratan sebagai sumber protein. Bahan makanan yang mengandung protein kasar lebih dari 19%, digolongkan sebagai bahan makanan sumber protein. Maggot merupakan salah satu jenis pakan alami yang memiliki protein tinggi. Maggot mengandung 41-42% protein kasar, 31-35% ekstrak eter, 14-15% abu, 4,8-5,1% kalsium, dan 0,6-0,63% fosfor dalam bentuk kering. Larva lalat Black soldier dapat digunakan untuk mengkonversi limbah seperti limbah industri pertanian, peternakan, ataupun kotoran manusia. Untuk membudidayakan pakan alami ini selain relatif mudah, biaya yang dikeluarkan juga tidak terlalu besar. Pengabdian Kepada Masyarakat (PKM) dilaksanakan di Kelurahan Kastela pada Bulan Juli 2020 dimana Kelurahan Kastela merupakan lokasi Laboratorium yang dimiliki oleh Fakultas Perikanan dan Kelautan Unkhair dan merupakan lokasi penelitian sekaligus pengabdian masyarakat. Tujuan dari dilaksanakan pengabdian masyarakat ini yaitu; Memberi informasi kepada masyarakat bagaimana membuat pakan ikan yang murah, mudah dan ramah lingkungan sehingga masyarakat tidak kesulitan untuk mendapatkan pakan ikan. Kesimpulan dari kegiatan PKM ini adalah menambah keterampilan masyarakat teknik kultur maggot (Hermetia illucens) pengganti pellet sebagai pakan ikan.
Seaweed K.alvarezii is a type of seaweed from the red algae (Rhodophyta) group that produces carrageenan.Carrageenan is very important as a thickening, gelling and emulsifying agent, and is widely used in various industries such as food, pharmaceuticals, cosmetics, soap, textiles, paints, toothpaste and others. Bobanehena Village, Jailolo Subdistrict, is one of the areas in West Halmahera that has been used by the local community as a seaweed K.alvarezii type of seaweed cultivation area since 2007, but it has not yet provided optimal results.To find out the extent of the impact of this business in providing benefits both financially and the level of income of seaweed cultivators in the area, it is necessary to study in depth through research. The purpose of this study was to determine the feasibility of seaweed K.alvarezii cultivation, and the income level of seaweed K.alvarezii cultivators in Bobanehena village, Jailolo subdistrict,West Halmahera regency.This research was conducted at the location of seaweed cultivation in Bobanehena Village, Jailolo subistrict, West Halmahera Regency.The time of the research was 1 (one) month, starting from November to December, 2019. Data collection was carried out on all selected respondents.The number of cultivators selected as respondents consisted of 7 groups, each of which consisted of 10 people who carried out the seaweed K. alvarezii cultivation business.The number of cultivators was randomly selected (rendom) so that the total number of seaweed cultivators was 70 people. The data collection method was carried out by survey and interview methods. The results showed that the seaweed K.alvarezii cultivation business in Bobanehena village, Jailolo subdistrict was feasible to be cultivated or developed because it had an R/C ratio > 1, with a total income level of Rp./year or Rp. 210,234,200/harvest season or Rp. 30,033,457/ group/ha.
ABSTRAK Udang Galah (Macrobranchium rosenbergii) merupakan salah satu jenis crustacea, yang mempunyai ukuran terbesar dibandingkan dengan udang air tawar lainnya. Penggunaan probiotik terhadap perbaikan mutu kualitas air kinerja pertumbuhan hewan budidaya sudah lazim digunakan. Namun demikian, pada budidaya udang galah masih sangat terbatas informasinya. Penelitian ini bertujuan mengetahui jenis probiotik yang berpengaruh dalam budidaya udang galah (M. rosenbergii), yang dipelihara dalam wadah terkontrol. Penelitian dilaksanakan selama 60 hari di UPT Laboratorium Terpadu Universitas Khairun, Kota Ternate Provinsi Maluku Utara. Penelitian dirancang dengan rancangan acak lengkap (RAL) yang terdiri dari empat perlakuan dan tiga kali ulangan. Perlakuan yang dicobakan adalah probiotik yang berbeda, yaitu probiotik boster planktop (10 ml), probiotik boster sel multi (10 ml), probiotik boster bio lakto (10 ml), dan tanpa. Hasil analisis menunjukkan pemberian probiotik boster planktop signifikan berpengaruh pada kelangsungan hidup udang galah, sedangkan pertumbuhan mutlak, laju pertumbuhan spesifik dan rasio konversi pakan tidak signifikan. Disamping itu, pemberian probiotik yang berbeda menurunkan konsentrasi amoniak dan nitrit, dan juga mempertahankan kualitas air media pemeliharaan.Kata kunci: Probiotik, pertumbuhan, limbah N, udang galahABSTRACTGiant Shrimp (Macrobranchium rosenbergii) is one type of crustacean, which has the largest size compared to freshwater shrimp. The use of probiotics to improve water quality, growth performance of cultivated animals is commonly used. However, the information on giant prawn cultivation is still very limited. This study aims to determine the types of probiotics that have an effect on the cultivation of giant prawns (M. rosenbergii), which are kept in controlled containers. The research was carried out for 60 days at the UPT Integrated Laboratory of Khairun University, Ternate City, North Maluku Province. The study was designed with a completely randomized design (CRD) consisting of four treatments and three replications. The treatments tested were different probiotics, namely planktop booster probiotics (10 ml), multi cell booster probiotics (10 ml), bio lacto booster probiotics (10 ml), and without. The results of the analysis showed that different probiotics had an effect on the survival of giant prawns, while absolute growth, specific growth rate and feed conversion ratio were not significant. In addition, the administration of different probiotics reduces the concentration of ammonia and nitrite, and also maintains the water quality of the maintenance media.Keywords: Probiotics, growth, waste removal, giant prawns
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