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1 Mvfxi RvZ Dbœqb I `y» Lvgvi vcb Dairy Breed Improvement and Establishment of Dairy Farm BAE 4104 SCHOOL OF AGRICULTURE AND RURAL DEVELOPMENT h wm cn E¾j š² hnä hcé mu

2 SCHOOL OF AGRICULTURE AND RURAL DEVELOPMENT h wm cn E¾j š² hnä hcé mu BAE 4104 Mvfxi RvZ Dbœqb I `y» Lvgvi vcb Dairy Breed Improvement and Establishment of Dairy Farm Kvm ww fjc& g U wug jlk W. gvt gv k `yi ingvb m úv`k W. Avey mv `K gvt mwjg ipbv kjx m úv`k I mgš^qkvix W. gvt gv k `yi ingvb G Kvm ebwu idvwi KZ K wbix Yi ci evsjv `k Db y³ wek we` vj qi zj Ae GwMÖKvjPvi GÛ iæivj W fjc g U Gi QvÎ `i Rb gyw`ªz n q Q

3 Mvfxi RvZ Dbœqb I `y» Lvgvi vcb (GAVIR JAAT UNNAYAN O DUGDHA KHAMAR SHTAPAN) DAIRY BREED IMPROVEMENT AND ESTABLISHMENT OF DAIRY FARM m úv`bv cwil` mfvcwz t m`m t Wt Avey nbv gvt dviæk W. gvt Avey Zv je W. Av.b.g. Avwgbyi ingvb W. gvt kvn Avjg mikvi W. gvt gv k `yi ingvb gvt miiqvi nv mb PŠayix W. Avey mv `K gvnv ` mwjg W. gvt b~iæj Bmjvg W. gvt wejvj nvmb mvwe K ZË veav b W. Avey nbv gvt dviæk Wxb, DAIRY BREED IMPROVEMENT AND ESTABLISHMENT OF DAIRY FARM (GAVIR JAAT UNNAYAN O DUGDHA KHAMAR SHTAPAN), a 1 Credit Course book for the Bachelor of Agricultural Education Programme. Written by : Dr. Md. Morshedur Rahman, Edited By : Dr. Abu Sadeque Md. Selim, Style Edited by : Dr. Md. Morshedur Rahman. Published by : Publishing, Printing & Distribution Division, Bangladesh Open University, Gazipur School of Agriculture and Rural Development, Bangladesh Open University. First edition : July, Computer Compose & DTP : Kazi Md. Giasuddin. Photoshop Processing : Kazi Md. Giasuddin. Cover Design : Md. Monirul Islam, Cover Photography : Dr. A.N.M. Aminoor Rahman. Inside Photography : Md. Morshedur Rahman. Printed by : Sudipta Printers and Packages, 8/8, Babupura, Nilkhet, Dhaka. ISBN All rights reserved. No part of this book may be reproduced in any means without prior permission of the copyright holder.

4 m~wpcî BDwbU 1 Mvfxi RvZ Dbœqb 2-44 cvv 1.1 RvZ Dbœq bi D Ïk I c wz cvv 1.2 Mvfx I luv oi cörbbzš cvv 1.3 ekbv ev Mvfxi FZzPµ, Mig niqvi j Y I KiYxq cvv 1.4 K wîg cörbb cvv 1.5 Mf ve v wby q cvv 1.6 Mf Kvjxb, cömekvjxb I cöm evëi Mvfxi hzœ I cwiph v e envwik cvv 1.7 Mig niqv ekbv ev Mvfx kbv³kiy cvv 1.8 Mf ezx ekbv ev Mvfx kbv³kiy BDwbU 2 `y» Lvgvi vcb cvv 2.1 `y» Lvgvi vc b cöv_wgk KiYxq cvv 2.2 `y» Lvgvi e e vcbv cvv 2.3 `ya `vnb I `ya evrvirvzkib cvv wU Mvfxi Lvgvi vc b cökí cöyqy cvv 2.5 `y» Lvgv ii Avq-e qi wnmve e envwik cvv 2.6 nvz w` q `ya `vnb cvv 2.7 e vsk _ K FY cwi kv ai LwZqvb wbr LvZvq jlv Z_ m~î 83

5 cvv wb ` kbv ÔMvfxi RvZ Dbœqb I `y» Lvgvi vcbõ Kvm ebwu we klfv e zj Af& GwMÖKvjPvi GÛ iæi vj ww fjc& g U Gi wegmgw cövmöv gi QvÎ/QvÎx `i Rb jlv n q Q Avcwb Rv bb, `~iwk vq wk Ki mve wyk Dcw wz bb ZvB cv Vi Kv bv KwVb welq hb Avcbvi eys Z Amyweav bv nq mw` K ` wó i LB Kvm ebwu jlv n q Q Kvm ebwui Avw½K I Dc vcbv ZvB cöpwjz cvv eb _ K wkqyuv wfbœ ai bi h nzz mivmwi wk Ki mvnvh QvovB Kvm ebwu Avcbv K wb R c o eys Z n e, ZvB GwU wkfv e co eb cö_ gb Zv R b wbb G Z Kvm ebwu co Z I eys Z Avcbvi myweav n e Kvm ebwui iƒc ilv ÔMvfxi RvZ Dbœqb I `y» Lvgvi vcbõ Kvm ebwu `ybwu BDwb U wef³ cöwzwu BDwb U GKvwaK cvv i q Q cvv msl v wba viy Kiv n q Q BDwb Ui welqe i Ici wbf i K i BDwb Ui cvv jv K Avjv`v K i mvrv bv n ji G `i g a GKwU hvmm~î i q Q BDwb Ui f wgkv cöwzwu BDwb Ui ïiæ ZB i q Q GKwU f wgkv f wgkvq BDwb Ui welqe i D Ïk Ges iæz ms c Zz j aiv n q Q BDwbUwU Z Kx Kx welq wb q Av jvpbv Kiv n q Q ms c ZviI D jøl i q Q G Z Avcwb BDwb Ui ïiæ ZB R b hv Qb cv Vi g~j Av jvp m~wp Kx? cv Vi D Ïk j Ki eb cöwzwu cv Vi ïiæ Z GK ev GKvwaK mywbw` ó D Ïk `qv Av Q cöwzwu D Ïk K K `ª K ib cv Vi welqe mnrfv e ey bv Kiv n q Q cvv k l cv Vi D Ïk jv AR b Kiv m e n q Q wk bv Zv wb R wb RB g~j vqb Ki eb GRb cvv k l ^g~j vqb cökœ A_ vr cv VvËi g~j vqb i q Q G Z Avcwb cvvwu KZUzKz eys Z cvi jb Zv wba viy Ki Z cvi eb AvBK bi (Icon) e envi cv Vi welqe jv GK` wó Z ey S bqvi Rb cö qvrb Abymv i Kvm ebwui wewfbœ RvqMvq wewfbœ ai bi cözxk ev AvBKb e envi Kiv n q Q, hv ` L Avcwb mn RB welqe i Dc vcbv Ges Avcbvi KiYxq wk Zv eys Z cvi eb wb œ G Kvm ebwu Z e eüz wewfbœ ai bi AvBK bi A_ wb ` k Kiv n jv = co~b I j Kiæb = Avewk K cvv/mvigg = Qwe `Lyb

6 = P ovší g~j vqb = cv VvËi g~j vqb = DËigvjv e wjlb cv Vi iæz c~y wk Yxq Ask K AviI AvKl Yxq K i cö`k bi Rb gv S gv SB Òe wjl bió gva g Zz j aiv n q Q cªwzwu Òe wjlbó g bv hvm w` q co~b Ges g b ivlvi Póv Kiæb mvigg wkqy wkqy cv V mvigg `qv Av Q mvigg c o Avcwb wbw` ó cv Vi welqe m ú K AwZ mn RB aviyv wb Z cvi eb cv VvËi g~j vqb cöwzwu cv Vi k l Avcwb cvvwu KZUzKz eys Z c i Qb Zv hvpvb qi Rb i q Q cv VvËi g~j vqb cvvwu fv jvfv e evsvi ci cv VvËi g~j vq bi cökœ jvi DËi `qvi Póv Kiæb AZtci Avcbvi `qv DËi BDwbU k l `qv DË ii mv _ wgwj q wbb me jv DËi mwvk n j ciezx cvv ïiæ Kiæb Ab _vq cvvwu cybivq co~b P ovší g~j vqb cöwz BDwb Ui k l i q Q P ovší g~j vqb G Z msw ß I ipbvg~jk cökœ i q Q G cökœ jvi DËi ˆZwi Kivi Póv Kiæb, hv Avcbv K cix vq fv jv djvdj Ki Z mvnvh Ki e G Î Ab vb Z_ m~ Îi mvnvh wb Z cv ib GQvov cö qvr b Avcbvi wudu ii mv _I K_v ej Z cv ib BDwb Ui me jv cvv fv jvfv e co j P~ovšÍ g~j vq bi cökœ jv mgvav b Kv bv Amyweav n e bv