TNeutron

A. Mycobacterium sp Mycobacterium sp. yang dikenal sebagai penyebab penyakit ” tuberkulosis ikan” (Fish TB), adalah bakteri yang berbentuk batang, dengan ukuran 0,2-0,6 x 1,0-10 μm, bersifat gram positif lemah, tidak bergerak, tidak membentuk spora atau kapsul dan bersifat aerob. Bakteri ini banyak dijumpai di perairan tawar dan laut maupun tanah dengan suhu optimal pertumbuhannya 25-30oc. tidak dapat tumbuh pada ...

Struktur tanah sangat berpengaruh dalam bidang pertanian. Tanah sebagai media tumbuh bagi tanaman menjadi penentu seberapa hasil panen yang akan didapat. Jika strukturnya terlalu mantap maka akar akan sulit menembusnya, sebaliknya jika kemantapan strukturnya terlalu lemah maka ketersediaan unsur hara dan air akan sedikit karena tanah tidak dapat mengikat unsur hara dan air dengan kuat, oleh karena itu dibutuhkan struktur ...

Argulus or fish lice are parasites of fish from the class of crustaceans Branchira family. These parasites get into the aquarium usually through a live feed. There are about 30 known species Argulus. Two of them, which is often found foliatus and Argulus Argulus japonicus. The parasitic nature tend to be temporary Argulus. They mancari host randomly and can move ...

There are several types of viral diseases that have been identified include: 1) KHV (Koi Herpes Virus) 2) IHHNV (Infectious hypodermal and Hematopoitic Necrosis Virus), 3) HPV (Hepatopancreatic ParvolikeVirus), 4) MBV (Monodon Baculavirus), 5) SEMBV (Systemic Ectodermaland mesodermal Baculovirus) or WSBV (White Spot Baculovirus) 6) YHV (Yellow Head Virus). 7) IMNV (Myonecrosis Infectious Virus) 8) TSV (Taura Syndrome Virus) 9) ...

Soil structure can begin to evolve from a single grain of massive form. When coming from a single grain, the development starts from the binding of soil particles form a clump (cluster) which later became ped. There are five main mechanisms that unites these particles, namely: 1. Activities during the growing root penetration. 2. Water movement which followed the direction ...

Soil is a habitat or a place to live different kinds of living organisms or bodies in the ground. Based on the function, generally there are two classes of bodies live in the soil, which is beneficial organisms and harmful. Beneficial organisms are organisms involved in the process of degradation or decomposition of organic material, binding or provide nutrients and ...