4. MANUAL FOR PEARL CULTURE

A manual on Techniques and Methodology for Freshwater Pearl Culture in Bangladesh was prepared and is included in this report as Appendix 1. It was based on the experience acquired during the implementation of the Pearl Culture Project at Mymensingh - FAO/TCP/4508. It was presented in a simple manner so that it will be easily understood by the intended readers who are rural farmers.

Table 1
Monthly Report on Operations Performed
Month	Quantity Operated On	Mortality (After two weeks)	Balance
September	195 pcs	98 pcs	97 pcs
October	839	318	521
November	637	181	456
December	444	81	363
January	207	76	131
February	740	125	615
March	509	63	446
April	610	171	439
May	582	218	364
June	116	29	87
TOTAL	4 879	1 360	3 519

Table 2
Mussels operated on by R. Pagcatipunan
Month	Quantity Operated On		Mortality (After two weeks)	Balance
September	8 pcs	}	2 pcs	6 pcs
October	108	}	27	81
November	83	} ¹	9	74
December	18	}	1	17
January	68	}	10	58
February	106	}	8	98
March	69	}	4	65
April	230	}	55	175
May	293	} ²	122	171
June	87	}	20	67
	1 070 pcs		258 pcs	812 pcs

Note: ¹ Seed pearls on mantle
² Two nuclei in gonad

Table 3
Mussels operated on by Mrs Momtaz Begum
Month	Quantity Operated on	Mortality (After two weeks)	Balance
September	35	12	23
October	299	74	225
November	258	85	173
December	219	61	158
January	94	50	44
February	202	40	162
March	236	32	204
April	219	71	148
May	131	30	101
TOTAL	1 693	455	1 238

Table 4
Mussels operated on by Mrs Nurun Naher Begum
Month	Quantity Operated On	Mortality (After two weeks)	Balance
September	62	44	18
October	249	144	105
November	129	65	64
December	197	13	184
January	45	16	29
February	284	50	234
March	178	26	152
April	161	45	116
May	151	63	88
TOTAL	1 456	466	990

Table 5
Mussels operated on by Mr Jahirul Islam
Month	Quantity Operated On	Mortality (After two weeks)	Balance
September	90	40	50
October	183	73	110
November	167	22	145
December	10	6	4
January	148	27	121
February	24	1	25
June	7	1	6
TOTAL	631	170	461

Table 6
Record of Operations - Pearl Culture Training
30 June-3 July 1986
Trainee	Mark	Number of Mussels Operated On				Balance¹ Alive
Trainee	Mark	30/6	1/7	2/7	3/7	Balance¹ Alive
Sayed Ayesha Begum	A	12	17	13	22	2
Guleka Khatun	B	6	13	10	10	3
Fatima Begum	C	9	20	22	29	26
Rajia Begum	D	8	15	13	23	9
Khodeja Khatum	E	16	11	7	16	5
Promila Rani Bonmon	F	10	15	16	17	25
Md. Abdul Kader	G	13	36	18	12	22
Md. Mosa Mia	H	8	25	20	33	19
Samsun Naher	I	9	18	20	16	2
Jahura Khanum	J	8	23	21	11	10
Sujid Kumer Bonmon	K	8	14	13	12	12
Minara Begum	L	13	31	24	34	4
Firoza Begum	M	10	20	20	31	2
Hajana Begum	N	12	13	17	20	1
Farida Yamin	O	6	20	22	30	16
Fatema Katun	P	5	12	13	16	9
Sub-total		153	303	269	332	167
Total:	1 057

¹ Balance of surviving mussels after 17 July 1986

Table 7
Record of Operations - Pearl culture training
28–31 July 1986
Trainee	Mark	Number of Mussels Operated On				Balance¹ Alive
Trainee	Mark	28/7	29/7	30/7	31/7	Balance¹ Alive
Ms Anzali Pal	A7	12	20	10	14	7
Ms Shahana Azad	B7	10	20	8	16	1
Ms Rawshawn Ara Razzak	C7	16	24	9	16	40
Asma Aktar	D7	5	15	5	10	4
Mahabubur Rahman	E7	7	15	8	10	7
A.M.B. Ataur Nahman	F7	8	15	8	15	23
Ms Laila Parvin	G7	7	13	0	18	22
Kumrun Jahan Mustari	H7	15	16	7	16	21
Kandaker Shafiqul Islam	I7	13	11	0	16	26
Salina Parvin	J7	17	31	12	12	39
Salma Sultana	K7	12	37	6	20	20
Taposi Rani Sarker	L7	15	20	8	10	1
Satya Ranjon Aich Mojumder	M7	10	23	12	20	34
Siddiqur Rahman	N7	15	20	3	26	45
Aynul Hoq	O7	10	21	10	21	17
Sub-total		172	301	106	240	307
Total	819

¹ Balance of surviving mussels on 14 August 1986

Diagram 1 - The Culture Pond

Map 1 Pearl Culture Farm

Graph 1 Water Temperature Readings (taken at pond no. 59 - surface - 08.00–09.00 h)