Sains Malaysiana 47(3)(2018): 427–432
http://dx.doi.org/10.17576/jsm-2018-4703-01
Testis
Maturation Stages of Mud Crab (Scylla olivacea) Broodstock on Different
Diets
(Peringkat
Kematangan Testis Ketam Bakau (Scylla olivacea) Induk ke atas Diet
yang Berlainan)
MHD IKHWANUDDIN1*, GHAZALI AZMIE1, SITI FATIMAH NAHAR2, WENDY WEE2, MOHAMAD N
AZRA1 & AMBOK-BOLONG ABOL-MUNAFI2
1Institute of Tropical
Aquaculture, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu
Darul Iman, Malaysia
2School of Fisheries and
Aquaculture Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu,
Terengganu Darul Iman, Malaysia
Received: 1 August 2016/Accepted:
25 September 2017
ABSTRACT
The aim of this study was to investigate
how various diets influence testis maturation stages in mud crab
(Scylla olivacea)
broodstock. Morphological and histological assessments were performed
in triplicate (10 male crabs each). Daily, subject crabs were fed
a squid (Loligo sp.) and a fish (Decapterus sp.) diet
at 5-10% of body weight. Diets were analyzed following methods from
the Association of Analytical Communities (AOAC). In comparison to control (wild)
crabs, the two diets generally did not cause significant differences
(p>0.05) in body weight, carapace width and gonadosomatic
index (GSI),
except in the GSI of squid-fed crabs (p<0.05). At the end of
the experiment, crabs that reached Stage 3 testis maturation included
were 6 fish-fed individuals and 23 squid-fed individuals. Additionally,
differences in crude protein and fat levels across diets influenced
the nature of male gonadal development. In conclusion, a squid diet
was sufficient to induce Stage 3 testis maturation in Scylla
olivacea within 60 days of culture. Our results should prove
the usefulness in developing appropriate feeding regimes for male
Scylla olivacea broodstock.
Keywords: Association of Analytical
Communities; crab reproduction; crustacean; nutrition; testis maturation
ABSTRAK
Tujuan penyelidikan ini adalah untuk
mengkaji bagaimana pelbagai jenis diet makanan mempengaruhi peringkat
kematangan testis ketam bakau (Scylla olivacea) induk. Penilaian morfologi dan histologi dilakukan dalam tiga kali pengulangan
(10 ekor induk jantan setiap kali pengulangan). Kesemua ketam diberi makan diet makanan sotong (Loligo sp.) dan ikan (Decapterus sp.) sebanyak 5-10% berat badannya setiap hari.
Setiap diet makanan akan dianalisis mengikut
kaedah daripada Association of Analytical Communities (AOAC).
Secara amnya, jika dibandingkan dengan kumpulan ketam yang dikawal,
kedua-dua jenis diet makanan tersebut tidak menunjukkan kesan yang
signifikan (p>0.05) ke atas berat badan, saiz ukuran badan
dan indeks kematangan gonadnya (GSI),
kecuali indeks GSI ke atas ketam yang diberi makan sotong.
Pada akhir kajian, hanya 6 ekor ketam yang diberi makan ikan dan
23 ekor ketam yang diberi makan sotong mencapai tahap 3 dalam peringkat
kematangan testisnya. Sebagai tambahan, perbezaan antara protein
mentah dan paras lemak dalam diet makanan telah mempengaruhi perkembangan
gonad jantan secara semula jadi. Sebagai kesimpulan, diet makanan
sotong sudah pun mencukupi untuk mendorong tahap 3 kematangan ketam
jenis Scylla olivacea selama 60 hari ternakan. Keputusan
kami adalah sangat berguna dalam membuktikan bahawa rejim pemakanan
yang sesuai perlulah dibangunkan untuk induk jantan ketam Scylla
olivacea.
Kata
kunci: Association of Analytical Communities; kematangan testis; krustasia;
nutrisi; pembiakan ketam
REFERENCES
Association of Analytical Communities (AOAC). 2002. Official
Methods of Analysis. 17th ed. Washington DC: Association of Official
Analytical Chemists.
Alava, V.R., Quinitio, E.T., dePedro, J.B., Priolo, F.M.P.,
Orozco, Z.G.A. & Wille, M. 2007. Lipids and fatty acids in wild and
pond-reared mud crab Scylla serrata (Forsskal) during ovarian maturation
and spawning. Aquaculture Research 38: 14681477.
Azra, M.N. & Ikhwanuddin, M. 2016. A review of
maturation diets for mud crab genus Scylla broodstock: Present research,
problems and future perspective. Saudi Journal of Biological Science 23:
257-267.
De-Lestang, S., Hall, N.G. & Potter, I.C. 2003. Reproductive biology of the blue swimmer crab (Portunus pelagicus,
Decapoda: Portunidae) in five bodies of water on the west coast of Australia. Fishery
Bulletin 101: 745-757.
Djunaidah,
S., Wille, M., Kontara, E.K. & Sorgeloos, P. 2003. Reproductive performance
and offspring quality in mud crab (Scylla paramamosain) broodstock fed
different diets. Aquaculture International 11: 3-15.
Fazhan, H., Waiho, K., Wan Norfaizza, W.I., Megat, F.H. &
Ikhwanuddin, M. 2017. Inter-species mating among mud crab genus Scylla in captivity. Aquaculture 471: 49-54.
Garcia, T.M.
& Silva, J.R.F. 2006. Testis and vas deferens morphology of the red-clawed
mangrove tree crab (Goniopsis cruentata) (Latreille, 1803). Brazilian
Archives of Biology and Technology 49: 339-345.
Ikhwanuddin, M., Mohamed, S., Rahim, A.I.A., Azra, M.N., Jaaman,
S.A., Bolong, A.M.A. & Noordin, N.M. 2015a. Observation
on the effect of natural diets on ovarian rematuration in blue swimming crab Portunus
pelagicus (Linnaeus, 1758). Indian Journal of Fisheries 62: 124-127.
Ikhwanuddin, M., Lan, S.S., Abdul-Hamid, N., Fatihah-Zakaria,
S.N., Azra, M.N., Siti-Aisah, A. & Abol-Munafi, A.B. 2015b. The
embryonic development of orange mud crab, Scylla olivacea (Herbst, 1796)
held in captivity. Iranian Journal of Fisheries Sciences 14: 885-895.
Ikhwanuddin, M., Yin, T.P., Menon, A.J., Jasmani, S. & Abol-
Munafi, A.B. 2015c. Effect of different
cryoprotectants and sperm densities of orange mud crab, Scylla olivacea (Herbst,
1796) for long-term storage of spermatozoa. Sains Malaysiana 44(9):
1283-1288.
Ikhwanuddin,
M., Liyana, A.N., Azra, M.N., Bachok, Z. & Abol- Munafi, A.B. 2014. Natural diet of blue
swimming crab, Portunus pelagicus at Strait of Tebrau, Johor, Malaysia. Sains Malaysiana 43(1):
37-44.
Keenan, C.P., Davie,
P.J.F. & Mann, D. 1998. A revision of the genus Scylla de Haan, 1833
(Crustacea: Decapoda: Brachyura: Portunidae). Raffles Bulletin of Zoology 46:
217-245.
Leal,
G.A., Dima, J.B., Dellatorre, F.G. & Baron, P.J. 2008. Schedule
of reproductive events and maturity at size of the Patagonian stone crab Platyxanthus
patagonicus (Brachyura, Platyxanthidae). Journal of Crustacean
Biology 28: 262-269.
Marochi, M.Z., Moreto,
T.F., Lacerda, M.B., Trevisan, A. & Masunari, S. 2013. Sexual maturity and
reproductive period of the swimming blue crab Callinectes danae Smith, 1869 (Brachyura: Portunidae) from Guaratuba Bay, Parana State,
Southern Brazil. Nauplius 21: 43-52.
Mura,
M., Orru, F. & Cau, A. 2005. Size at sexual maturity of the spider crab, Anamathia
rissoana (Decapoda: Majoidea) from the Sardinian Sea. Journal of
Crustacean Biology 25: 110-115.
Millamena, O.M. &
Quinitio, E. 2000. The effects of diets on reproductive performance of eyestalk
ablated and intact mud crab Scylla serrata. Aquaculture 181:
81-90.
Millamena, O.M. 1989. Effect of fatty acid composition of broodstock diet on tissue fatty
acid patterns and egg fertilization and hatching in pond-reared Penaeus
monodon. Asian Fisheries Science 2: 127-134.
Robertson, W.D. &
Kruger, A. 1994. Size at maturity, mating and spawning in the
portunid crab Scylla serrata (Forskal) in Natal, South Africa. Estuarine,
Coastal and Shelf Science 39: 185-200.
Ryan, E.P. 1967.
Structure and function of the reproductive system of the crab Portunus
sanguinolentus (Herbst) (Brachyura: Portunidae). I. Male system. Proceedings of a Symposium on Crustacean. The Marine Biological Association of India, Part II. pp. 506-521.
Soundarapandian,
P., Varadharajan, D. & Boopathi, A. 2013. Reproductive
biology of the commercially important portunid crab, Portunus sanguinolentus (Herbst). Journal of Marine Science: Research and Development 3:
1-9.
Viau, V.E., Greco,
L.S.L., Bond-Buckup, G. & Rodriguez, E.M. 2006. Size at
the onset of sexual maturity in the anomuran crab, Aegla uruguayana (Aeglidae). Acta Zoologica 87: 253-264.
Viswanathan, C. &
Raffi, S.M. 2015. The natural diet of the mud crab Scylla olivacea (Herbst,
1896) in Pichavaram mangroves, India. Saudi Journal of Biological Sciences 22:
698-705.
Waiho,
K., Fazhan, H., Jasmani, S. & Ikhwanuddin, M. 2017. Gonadal development in
males of the orange mud crab, Scylla olivacea (herbst, 1796) (Crustacea:
Decapoda: Brachyura: Portunidae). Crustaceana 90: 1-19.
Waiho,
K., Fazhan, H., Baylon, J.C., Wan Norfaizza, W.I. & Ikhwanuddin, M. 2016a. Use of abdomen
looseness as an indicator of sexual maturity in male mud crab Scylla spp. Journal of Shellfish Research 35: 1027-1035.
Waiho,
K., Fazhan, H. & Ikhwanuddin, M. 2016b. Size distribution,
length-weight relationship and size at the onset of sexual maturity of the
orange mud crab, Scylla olivacea in Malaysian waters. Marine Biology
Research 12: 726-738.
Waiho, K., Mustaqim, M.,
Fazhan, H., Wan Norfaizza, W.I., Megat, F.H. & Ikhwanuddin, M. 2015. Mating
behaviour of the orange mud crab, Scylla olivacea: The effect of sex
ratio and stocking density on mating success. Aquaculture Reports 2:
50-57.
*Corresponding author; email:
ikhwanuddin@umt.edu.my
|