Volume 2, No.1 JANUARY - MARCH 1997

CENTRAL INSTITUTE OF BRACKISHWATER AQUACULTURE, CHENNAI. 1 / 3

c o r n Capuve bFoodstock dtvebpmcnl and induced bncding of gmy mullet. Mug11 cepholus

Reseatch Highlights

Shrimp Nutrition

Visitoa

Ewaemwnts

Meclings

H u n m Resource DNebpmcnt

Nat iod Aquacultm Week

Exhibition

SmfYNews

Appoinlmrm

Remotion

Transfer

Relief

Poblicatiom

by: Shri M. KATHTRVEL, r. K.GOMNA' r. MUNAWAI nior .5cmt1.4! 1 D

D Sc

Published by: Dr. G. R. h

TIWN & R SULTANA. P

A. RAO.

CAPTIVE BROODSTOCK DEVELOPMENT AND INDUCED BREEDING OF GREY MULLET MIIGII. (%.'I'HAI,(IS

Embryo development ~ n s ~ d e the eggs of grey mullet Mug11 cephalus

Development of a captive 100.615 nun, whilc the milt was wdng broodstock, induad bmeding and seed in matun males. production of the grey mullet Mug11 cepholus was taken-up at Muttukadu Experimental Station of the Institute. 60 sub-adult and adult M. cephalus were maintained In two 100 t capacity RCC tanks with flow-through system, for over one year from January 1996 and reared on a formulated pellctcd maturation diet. The proximate composition of t k iced was cnde lipid 5.97 %. crude protein 35.27 %,crude fibre 3.37 %,ash 8.79 %, moisture 5.47 % and NFE 4 1.13 Among the reared broodstock. 20 % of them attained full maturity without any hormonal tmlmmt. In matun females, the diameter of ova ranged from 0.525

In order to advance the brccding. 5 fcmalcs measuring 380-420 mm 1 675-1000 g were subjcctcd to induced breeding during January-March 1997. One of the females (380 mm 1675 g) having ova diameter of 0.525-0.550 mm was administered with HCG @! l0,ofX) IUkg as a priming dose. whilc Ovaprim (a! 5 mllkg was given as a resolving dose aftcr an interval of 24 hours, which has resulted in complete o v u l a t ~ o n . 22 hours aftcr the administration of resolving dose, the ovulated eggs were stripped into a container devoid of water and the milt from two oozing males was stripped

22-hour old hatchl~r

ver rnc cggs. A total of 1.4 million ggs wcrc obtained and the rate of :rtilisation was 90 %. The hatching tarred 30 hours after feriilisation and !as completed in 2 hours. Water :mpcraturc of the mediun~ ranged rom 26.0 to 28.0 OC. The number of atchlinns was cslimaled at 5.2 Iakhs. {hlch worked out to 4 1.6 % o f the crtiliscd eggs. The hatchlings wcrc qoallv distributed and reared in five -ton tanks with flow-through facility. 'IIC mouth formation in thc hatchlings

was noticcd on 4th day. It waq possible to rcar ~ I I C hatchlings up to R days from thc timc of spntvntng. Due to infection with ciliates, large-scale monallty of t l r Iu tc l~ l i r~s was noticed.

suitably manipulating the essential amino acid index in the feed. Fecdlng trials with I? monodon (si7e12g) gave good growth and survival when f ~ s h meal content was reduced to 5% level and plant protcln content increased to BOX along with 7% Sprrultnn-

This is the first timc in India that successful maintenance of captive bmodstock end subscqacnt brccdlng of Af. ctbphnlus was achicvcd by Central Institute of Brackishwatcr Aqua- culture. This significant work was carried out by Dr. Mathew Abraham, Senior S c i e n t ~ s t in association with Scicntists, Dr. P. Kishorc Chandra, Dr. Shinmc Percira and Sllri M. Kailasam.

lESEARCl hrimp Nuh

- ~

H HIGHLIGHTS

Pl*n@-hqsed protein sources viz.. cal. Spirulina etc. havc

worms possess greater attractant pcoperty followed by prawn hcad.

VISITORS

The following visited Muttukadu Experimental Station.

14 B.F.Sc. students from College of Fisheries. Orissa University of Agriculture and Technology. Bcrhampur. Orissa. 3 January 1997.

27 students of Coastal Aquaculture and Marine Biotech- nology. College of Science and Technology, Andhra University. 4 January 1997.

35 participants of the National Aquaculture Week. conducted by Aquaculture Foundation of India. 2 February 1997.

A batch of B.Sc. (Industrial Fish Rr F ~ s h c r i e s ) students from Christian Collegc. Tambaram, Chcnnar, 6 Fcbnlan 1997.

9 trainccs from Staff training Feed " I z . prawn Institute of Directorate of Fisheries.

squid l i v e r meal. P ~ ~ Y ~ ~ ~ ~ ~ ~ Govr, of Tamil Nadu, 15 Februap worms. fish solublcs. ncenl cake. ctc.. ,,,, r c r c tested for their attractant and

a

growth promoting propertrcs by E N G ~ G E ~ E N ~ S incorporat~ng thcm in standard purified diets ~n fccdlng trials wlth I' mono<h~n. Dr. K . Alagarsuami, Director, Results ind~ca tcd that polychactc attended the following meetings.

cly used for r r p l ~ m e n t Dr Prab~n Chandra Sarrna. Member of Parl~arnent and Chairman, Soc~al Audd

,tcin in shrimp feeds bv Commmee 1s be~ng recelved by Dr K Alagarswarn~. D~rector

- M&ng on Technical Consultancy on World Bank - assisted Shrimp and F~sh Culture Pmjcct at Dcpt. of Agriculture and Cooperation. M~nistq of Agnculmrc. Govt. of India. Neu Dclhi. 12 F c b w 19'47.

- Second Meeting of the Social Audit Committee at ClCFRl Centn. Gunahah, 13- 14 February 1997.

- Executive Committcc Meeting of Rajiv Gandhi Centre Tor Aqua- culture at MPEDA. Kochi. 20 March 1997

Dr. R.D. Prasadam. Principal Scientist. attcnded the Mecting of the Sub-group on Coastal Aquaculture for draft~ng IX Five Year Plan of Tamil Nadu Govt., Chennai. 24 February 1997.

Dr. A.R. Thirunavukkarasu. Senior Scicntist. attended the Workshop on Coastal Regulation Zone of Tam11 Nadu Coast. organiscd by the Dept. of Town and Countq Planning. Govt. of Tam11 Nadu at Anna University. Chennai, 29 January 1997.

Dr. L.H. Rao. Senior Scicntist. pdcipatcd in the ICAR-ODA Meeting at NBPGR. ICAR. New Dclhi. 5-6 Februav 1997.

Dr. C. Gopal, Scicntist (SS) and Dr. S.S. Mishra, Scicntist. attended a Farmer's Awareness Programme. organiscd by BFDA at Mach~lipatnam. 5 Febmaq 1907.

Dr. S.S. Mishra. Scicntist. attended a National Sem~nar on Recent Trends in Aquaculture at Nagarjuna Univcnitv. Naga rjuna Nagar. Andhra Pradcsh and prcsentcd a paper, 6-8 February 1997.

Shri M. Kathirvel, Senior Scientist at Headquancrs, visited KRC of CIBA, Kakdw~p. 24-28 February 1997, in conncction with crab culture programme.

MEETINGS The third meeting of the Research

Advisory Committee was held on 11-12 March 1997, at Muttukadu Experimental Ststion of CIBA.

Partrc~pants of the Soc~al Audlt Comrn~ttee (Len to nght Dr K Alagarswarn~. Dlrector, Dr V Rajagopalan Ex-V~ce Chancellor. TNAU, Dr M S Prabhavatl.

Deputy Dlrector of Flsher~es. Govl of Tam11 Nadu, Dr Methew Abraham. Dr K Gop~nathan. (Senlor Sclent~sts of CIBA) and Dr M S~nha, D~rector. ClCFRl

The third mccting of the Social NATIONAL AQUACULTURE Audit Committee was held on WEEK 26-27 March 1907. at thc Multukadu Experimental Station of CIBA. Dr. Prabin Chandta S a r t ~ ~ a . M.P. (LS). Assam. Chairman. S o c ~ a l Audit Comniittce. prcsidcd over UK: mceting.

HUMAN RESOURCE DEVEL- OPMENT

Smt.M.Jayanthi.Scicnlisl, under-went lra~ning in Agricultural Electronics at CIFT, Kochi. 12-20 February 1997.

Dr P. Kishore Chandra, Scicntist. attended the National Training Programme in DNA Finger Printing in Farm Animals at National Dairy Rescarch Institute, Karnal, 25 Fcbwry to 14 March 1997.

Shri. M. Shashi Shekhar. Scicntist. attentled a tnining course in Application of Biotcchnology in Animal Health Management at Cemre of Advanced S t u d ~ e s in Animal Biotechnology, Indian Veterinary Rescarch Institute. Izatnagar. 20 February to 12 March 1997.

The Institute participated in the -"! Nalional Aquaculture Wcck, organiscd by Aquacull~~rc Foundallon of India. Chcnnai and CO-sponsored by Fisheries Division, ICAR. Dcpt, of Agriculture and Co-opcralion (Ministry of Agrlculturc), Dcpt. of Ocean Dcvclopmcnt and Dcpt. of Biotcchnology, Govt , of lndia. at Vijayawada, during 24-26 January 1997 and at Chcnnai during 31 January - I Fcbruary 1097. The following sc~cntists took pan in the dclibcrations of the tcchnlcal sessions: Dr. R . D. Ptasadam, Dr. K. GopinathRn. Dr. L. H. Rao, Dr. P. Ravichandran, Shri M. Kathiwel. Dr. S. Kulasckarapandian, Sllr~ D.Nanyanaswamy. Dr. S. A. Ali, Dr. A. R.Thirunavukkarasu, Dr. C. Gopal, Dr.K.V. Rajendran and Dr. S.S. Mishra. .

EXHIBITION

The lnstitute participated in "Aqua Fair", organised by Inland Capture Fisheries Society of lndia at Central Inland Capture Fisheries Rescarch Institute, Barrackpore, in conncction with thc Golden Jubilee Cclcbration of ClCFRl during 16-17

Marcn 1997, -1ne Institute's aclivit ia and achievcmrds wen: exhibited in the form o f charis and photographs. The Scientists, namely, S/ Shri Hardial Iingh, S.R. Das. R.K. Chakraboni, Dr. I.K. Ghosh and Shri B .K. Ranerjee rom Kakdwip Research Centre and ;hri Marella Ravi, Photographer, from

:~pated i n the k Headqua xhibition.

iTAFF NE' . .

rppotntment

Shri S. Stanline sr T-11-3 at :hcnnai. 17 February 1997.

Smt. S. Bhagirathi, Assistant as ;upcr~ntendent at Chennai. 27 'eb~ary 1997. Dr M Sakthlvel, Pres~dent, Aquaculture Foundation of Ind~a, Chenna~, lnteractlng

wfth Me sclenllsts of ClBA durtng the celebrations of Natlonal Aquaculture Week f m n ~ f e f at Muttukadu Exper~mental Statton

Dr. P.S.P. Oupta, Scientist. fmm

C1Bk C%nnai to lnstitutcof Animal Nutr i t ion and Physiology. PUBLICATIONS Animal Nut r i t ion and Physiology. Bang~lore , on Inter-Institutional Bangalore, o n Inter-institutional Immkr, Relicvcd on 31 March 1997. tmmrer. Relicvcd on 4 Jan~ulry 1997. The Institute has published the

Relief fo l lowing Technical Bu l lc t in Shri R. Rangeshwaran. Scientist. Shri N. Kalaimani. Senior

f rom CIBA. Chennai to Pro- Scientist. relicved on 2-year study ject Directorate of Biological Control. lapc, 27 Janwry 1997. Bangalore, on Inter-Institutional transfer. Relieved on 4 March 1997.

Dr. J.V. Ramana. Scientist, from CTBA. C h e m i to National Institute of

XX'!W'II.

CHE

(Ms'iU ; l l K '

NNAI -

The ImHtuh 8's stall at' Aqua Fair" , organised by Me Inland Flshenes Soc~ety of lnd~a at C.I.C.F.R.I. Barrackpore. West Bengal

and ~xqck ion xrics

- ClBA Bullctin No. 10. Mud crab culturc. March 1997.

- ClBA Eaension series. No. 8, Site selection and farm design Jantrat?; 1097.

- ClBA Estension series, No. 9. Finfish Fanning. Januan. 1997.

- ClBA Exlension series. No. 10. Small-scale shrimp hatchet?; lechnology. January 1997.

- CIBA Externion series. No. 11. Disear diagnosis and health management In shnmp farms. Januay 1997.

- CIBA Exlension series. No. 12. Shrimp nuuition and feed techno lo^. Januaty 1997.

- ClBA Evtcrnion series. No. 13, The brine shn~np Artemra: Biomass and cyst produnion. March 1997.