+, N m» .     

 !" #$%&'$(  )*+,-.!"/)0""12 2," 3!"456& & , ' -782& 9 :;<=> 3?
,/@-* ABC:B; DEFGHIJKH;"LHIJKH;M QNOP R"S FTHUVHWH$X !$ *Y9 :% & &"'::

0 Z[: D\!M ]^X *"_`#$a_ bc( X   ? --  D+3/2 M -d390 GHefg]^X`#;$%^!" h ':)*+i;`#j,"hk"3BQ!"DlM

XC:#2 3s-GHefg4[)56t!"

X  D? --  3 u +*Y F;-mn .opqn/Br0h 1

# ++ u ,1v: 7 , wu89$X M

B=xy:;<bz \!${|=^& }&>?@U~6&AB BC#XD& C:EF
GH$ `#I%;J&5&FKL% M5X=xy^ & =t*

D , N  -  , O ,. 2 zM

+M GHefg!!" fPQ C:$FEk}Fkh^9Q&X $ &0 FGH$=t^X& qQ]S$RST HJX/B "&!" X B U~7 U X $ + ]^XHJ^ & k¡¢ *V£<&RS a_¤¥/^X !Q 4¦$ 4WX§¨$= Sir John Hammond Y© WaltonY© Rowson Y© Df¨/M Polge Y© DZª=[|0M Bn&(!" $«&$X  \ Hammond Y©BF=]F^M4¬_`k4ab ((3& }& $ ­c®2 + `Ps& } =Y©¯° DO¯± ²d$X M $e]k$&³&³4´µ¶ f5!" $ dgh$ i:&q¡¢0g(4·¸F"X{jkQl &¹º$h¼ 458 ¼ª +, « P>?@A¬­ +,. -1 Sir John Hammond ./ -+3/2 0-#l"./M0

 +,. -2 _`lxyz{~Z[ -+3/2 0- Prof, Dr. Bane I , > Dr. Settergren I - >
¡./ -¢I£00¤¥Y6P¦§¨©





 !"#$%&'()*+, -Hancock ./0 123#45678
9:;<=>?@A, -BC Melrose ./0 DEFG 2H#IJKJKLMNO
Holt ./IP>?@AQRMSTR UVWXYP>?@AZ[QRM\]

2^#_`1abc# def
56ghifjaklmn6opqrstO u_vwa
2#_`lxyz{|}~ z#z4>?@A,zvwa_k|}~ 2#ax#a#|}~7q2^#_`

1abc#*+ tO Z[ d ® 459 ®

t +, % 3456&»¶ +,. -3 ·¸¹b¸ " UB3 45 º$ +30+ "   Bonadonna 

 +30+  ! -0 " / # $ %&'()*+,-./ 01 234567 89.:;)<=>?*@A0B3456CDE;9)FG)<==HIJ K) <LM*+NOPQR=QRS@A)T

U@V'()WX YZ[\1 B3 45 ]C^_'( `*=abcdef;gh;Oi')<=>

j9<= k)J," *+Q lm.:<(<=1On=o +3/2  ! -- "  - M +30+ 0 # pbq*rs %&'()t . u*+N,vQR IVth International Congress on Animal Reproduction _w /. x*" @A0 0** " y9zT345

61lm.:{c + 8=|k}( ~1.:0'( B345
6= CQK()J lm.: 23yn456
=+7 Researches and Practices in the Artiﬁcial Insemination of Pigs =;
Qt + B 0 # / B" %QMQy9o)J .: 3456)|,- oO)B= C=;gh; |<*+Q)T;^_;) ¡¢£ Techniques of Artificial Insemination of Pigs in Japan  +1 " C¤¥; + ¦§.:C¨=©;ª =;)«t k) $ ¡¢£¬­ *®¯ Graham °Uef;)"Joy .:_±²=; 23v\ =456 0!³"´7 Summaries of Research Reports on Reproductive Physiology and Artificial Insemination in Swine +3.*ῌ+30*" Cµ#;)J¼ 460 ¼

b +,  NOPQR

% +,. .* b . qr3:;stuvtw +30+yjz Knight’s Hall

0 x

% +,. .+ {|=C}!$*+,-./ +30, ~ , O{| Dr. Gotink, Dr. Williems / 0-=:;<=>?"

 ,  Dr. C. Willems  Dr. Got-ink  !"#$ % +,. .+&  , '()*+,-./01234

56789 :;<=>? @ + AB-.=CD,E"F!$G FHIJKL$M

NOPQRST!"UVWX! Y M B /** Z[\]NOPQR^_`
abcJ,NOPQR,E"d_& ef -/ 461 \ghijklNmn$opG

º +, B  C»   ῌ      !"#$ %&#'  ()*+ ,-./0 123456&#'78
9:;<=>?  Dr. Madden @ &# ABCD EF

G8-7 H I .*  J+30/ 7 0K1 L HMNOP JQRSTUVWX0HM
YZ[\]^_`aM7  bc de!$ JPfQgh "i Jbjkl#7 m$ %i J&eno7 p'qri Jbsj7 tuvws( J 7 )* xi JyHz{|S+}~ F, / -*G7  + f &HYZ. NOJ1b YZ[ G   &/02+7 34'*l`G*G8J25*6H6*' 7G78 28 /0#& E9¡¢+:#&%  G

/£¤*' ¥;¦  §8¥G& H2< JI .+  +300 7 +* L 8p?z=y¨> - -©(b J:ª«¬k­® Dr. Ostaska  , -7 ¯ &YZ­°X± J² +,. .,7 ³  J´?µ ¶@)A 7 + &· 8² +,. .,¼ 462 ¼

HYZ­°¸ Dr. Ostaska >¹8
Jp?z=&7J+300 7¡ +, A y +,. .- ¸BFMNwx0>> t¹?"º»@ +30+ . 

   !"#$%&' ( -0  +30+  ,). * - +*,' -./01 2345
6  7 895' :;<1* = >?@0 ! 0ABCD EFGH;<IJ>K$ -,   LFMNO$!"  FPQMRSO$T' U> VWXYZS0' [\]^_1' `0abQcCdefg#TheijTkl 1' mU>Q0n$? !Z' op0EFC>CqTrTs$!" ?
,0tuvwx ! y +,. .-"z' ?{N0ῌ, |}ab ~ῌ895, BOAC { '! |"#$}'| % ;<z .../)10 ,&  / Qc' '( )EFG0*xJ 0' EabO$T ,+ +
 +1 +E E, 2*.+ῌ L?Z"
0' p0. /  "*,'01' -0n$L CT
 ./01' ¡ + ( -1  +30,  +*)++0¢ab£ 1¤¥¦2 0ABC3

0§TC' K$-*  ¨;045©ªC«6;< , ' ¬­ -,  EFG0®C7FPQMO$!Z' EFG¯°%C8±²' p' L³90´: y +,. .." ?EFG¯°U`/;<µ$1' n=C>" $¶?·,0ῌ/, |}abQc"¼ 463 ¼ +, E VWXª¥ +,. .. 67¦ + VWX§¨C +30,  ,  /.  +, //  + ’2*   +313 !"#$%&'()*+%,-./0123 45  678 / AS-PAC 9:;<=> +311  /   ?@ A? B*+CD  +  +311  ++   - +32,  ++   /  +320  ++   1  +33*  ++   +- EFG HIJK./)

LMNOPQ%RSTU VWXBYZI[()\]0^]_TU`abc.Ode^ fghT:i1)jk 67VWXlm ?n.opqr0st.uv)jw%x5 y].z {|}~g1)jj398 /-  +312  2 % /1  +32,  /  , ῌVWX{C^.)2^ k9*+%r:()S T/0123
8 /2  +32-  - 9:;<=> VWX%`()S T/0123
 ¡>¢8 ./  +31*  +,  .0  +31+  - £ FAO ¤¥ +,. ./  ¡>¢B©VWX +31* ’1+ « 464 «+, r W

  ῌ    !" #$%&  ' ()*+,-.

/01

2345 FAO

6789 5:; -<&
/9 =>?@A!

=>?@A! BCDEFGH "#IH $JKL
%M E.F. Graham NEFOPQ-

. R S'&'(MT 6)U*VWX9 Y+ %M- 5Z[\]5,-^_ ./ -0 0 6+30+ 09 0`++ a# bcc 123dEF45ef 56gh789i
. 5jk 6:9; Graham NlB Dr. R. Gerrits, Dr. L.A. Johnson, Dr. V.G. Pursel [m<=[8>Hn oI ?hH@H AFBpqrstr<&B

C&uD v'(EFl?QhGI&wxE BH B

Cqrstr&uI yz{| O}~O {Kr ~?~ @?r= 6t9 | J%M5K %&L5Z[\]H- [|P-e^_BH+30+ 0 2 a ,*`,- 5+. RMB'&%TN 56

54%&T5O]BI-<& ./ +- 0 6+3-2 09 5ef ./ -- 0 6+3/2 09 EF./ 0* 0 6+32/09 -P Q GH RH STU]5VE)I E¡\H +32/ 0¢3B >WHX&D GH
5Y£%&jkZH[FE[) \¤]¥¦:[II§D¨ Dr. Johnson 656 MT^_Tc9 H0/ R56 MT%T 6`R 2 06+330 09 - a ,. 5 a© %e9 $bVWIcª;«dBG_G_e

IfC¬­5U:&¨-<®+3-* 0g56I[^_h¯i[ef¢@ +33* 0g¤5j7- G_G_B wj7HX&Dk° X&D±l^_]5²&]H@&³ῐ ῌ ῎ ῍ ῏ ῑ+9 m´nµ¶o : 5·¸7¹p 6+9`6+*9+*`+, » 6+3/39+* º + » 6+30*9¼ 465 ¼q) 6p ®56 ³9 3 º ,`1 » +, f JKLMNgh,  :  .

!

 +0  +*  +30,  " 2  .  +30-- Niwa, T. : Researches and practices in the artiﬁcial insemination of pigs. IVth Int. Congr.
Anim. Reprod., Plen. pap. 2-. Hague +30+
. #$%#&'()*+, : -.#&/0123&4567.#&89: !; V;<=> ?@ .* AB ?@ .+. , +300/  : CDEFGHIJῌKLMN/0OPIQJRS T U-VQ

JW +,  3  +30,
0 NIwa, T., A. Mizuho, A. Soejima and Ngwe Gaing : Insemination trials with boar sementransported from Japan to Burma. Vth Int. Congr. Anim. Reprod., Trento. (+30.)
1  :0,  +311

KLMNF + .X
- CDE " 0-  +311

ab cd " 01  +312 0 eKLMN; Y /3  +31 , Z[\] ". ^_` ab " 0.  +312/ ^_`" 1+  +313

2 NIWA, T. : Recent advances in artiﬁcial insemination in Japan. ASPAC Extension Bulletin
No. +3+ (+32-)
3 NIWA, T. : Status and prospects of artiﬁcial insemination for swine and cattle in Japan.
Seminar on the impact of AI on livestock production in Southeast Asia. PCARRD, Phillipines.
+32-+* FAO : Artiﬁcial insemination in pigs. Report based on the work of Tazaemon Niwa, consultant, Animal Husbandry, Singapore. AGA : SF/SIN /, Technical Report ,, FAO, Rome (+31,)

I 466 I