PENGARUH PENAMBAHAN TEPUNG RIMPANG TEMULAWAK (Curcuma xanthorrhiza) PADA PAKAN DENGAN DOSIS BERBEDA TERHADAP LAJU PERTUMBUHAN DAN TINGKAT KELANGSUNGAN HIDUP BENIH IKAN MAS KOKI (Carassius auratus)

2021 ◽  
Vol 7 (1) ◽  
pp. 29
Author(s):  
Hidayat Pandu Setiawan ◽  
Fia Sri Mumpuni ◽  
Mulyana Mulyana

Tujuan penelitian ini ialah untuk mengetahui pengaruh dari penambahan tepung rimpang temulawak dengan dosis yang berbeda pada pakan ikan mas koki dilihat dari laju pertumbuhan dan tingkat kelangsungan hidup. Waktu penelitian adalah dari bulan Januari sampai April 2020 di PT Arwana Indonesia, Cibubur, Cimanggis-Depok, Jawa Barat. Penelitian ini dirancang dengan Rancangan Acak Lengkap berupa 4 perlakuan dosis temulawak K (kontrol), A (2,5%/kg pakan), B (5,0%/kg pakan), dan C (7,5%/kg pakan) dengan 3 kali ulangan. Benih ikan mas koki ditebar secara acak ke dalam 12 akuarium dengan kepadatan 20 ekor tiap akuarium dan ikan dipelihara selama 28 hari. Peneliti ingin mengukur laju pertumbuhan bobot spesifik, panjang spesifik, serta tingkat kelangsungan hidup. Penelitian ini menunjukkan hasil bahwa terdapat pengaruh penambahan temulawak terhadap laju pertumbuhan spesifik ikan mas koki dengan P<0,5. Laju pertumbuhan spesifik terbaik pada perlakuan B dengan dosis 5,0% (laju pertumbuhan bobot spesifik : 1,75±0,08 %/hari, laju pertumbuhan panjang spesifik : 0,90±0,04 %/hari). Penambahan temulawak pada pakan tidak berpengaruh nyata (P>0,5) terhadap tingkat kelangsungan hidup ikan mas koki yaitu dengan nilai 100% disetiap perlakuan.

Author(s):  
Waykin Nopanitaya ◽  
Joe W. Grisham ◽  
Johnny L. Carson

An interesting feature of the goldfish liver is the morphology of the hepatic plate, which is always formed by a two-cell layer of hepatocytes. Hepatic plates of the goldfish liver contain an infrequently seen second type of cell, in the centers of plates between two hepatocytes. A TEH study by Yamamoto (1) demonstrated ultrastructural differences between hepatocytes and centrally located cells in hepatic plates; the latter were classified as ductule cells of the biliary system. None of the previous studies clearly showed a three-dimensional organization of the two cell types described. In the present investigation we utilize SEM to elucidate the arrangement of hepatocytes and bile ductular cells in intralobular plates of goldfish liver.Livers from young goldfish (Carassius auratus), about 6-10 cm, fed commercial fish food were used for this study. Hepatic samples were fixed in 4% buffered paraformaldehyde, cut into pieces, fractured, osmicated, CPD, mounted Au-Pd coated, and viewed by SEM at 17-20 kV. Our observations were confined to the ultrastructure of biliary passages within intralobular plates, ductule cells, and hepatocytes.


2001 ◽  
Vol 36 (3-4) ◽  
pp. 195-198 ◽  
Author(s):  
I Paschos ◽  
L Natsis ◽  
C Nathanailides ◽  
I Kagalou ◽  
E Kolettas

1971 ◽  
Vol 68 (2) ◽  
pp. 363-366 ◽  
Author(s):  
W. Wildmeister ◽  
F. A. Horster

ABSTRACT Gold-fishes (carassius auratus) were injected with synthetic thyrotrophin releasing hormone (TRH) in concentrations of 25 μg to 1000 μg/fish. TRH did not provoke endocrine exophthalmos.


2011 ◽  
Vol 3 (11) ◽  
pp. 547-549
Author(s):  
S. Jeeva S. Jeeva ◽  
◽  
J. Raja Brindha ◽  
N. C. J. Packia Lekshmi ◽  
A. Vasudevan A. Vasudevan

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