Fdml tm Pet emakm, Ins tikut PertanJm Bo@r

ABSTIUICT. A study of p m w y tesf w s s caxried out on five d d x y farm enterprAacs in West and Middle Java, in 0 ; t . d ~ ~ to t e s t the superior i ty of 25 Holstoh Friesian W l a that were us& for aJ pragxam, The study w a s bmd an 2232 milk production r e c o d s of 121 9hedsofmws fmm tp?f 'to 192 . The pmgeny test was ddne based on Contemporary Comparison ( C C ) method.

The result showed that CC vkues of 17 bulls wore positive a d that af 8 b l l s were nemtive. The CC v&uc;s v a i d f r o m -335,33 kg to +I@Q.?T kg, m d four hlls lM hi& mpcr~rity .

Them w a s no s id f i cant dfffrence betwem tho avemge of milk pducti lm of ~EJ, offspriqp (3Wb 2 tj2~.5 kg) and of non 81: o f f a p r i n e (2991.50f 492.5 kg). T h i s rcault weta due t;o the frozen aemm that wars import;& to Indonesia derivd fmn the bulls d c h the aver- of *

milk produ&fon of their o f f ~ i p x h p in *eix origin country was 3500 kg per l s t a t i o n p e r i d , wfxereas in Zndonesia there were some dairy fw pduced milk w h i c h the avcxap of 4500 kg per ltzatation period. Tham ww no et sf@f%csnt rmk correlztim between %he degree of mpariorlw of bull8 in their origin country +d 2: 'T >?OW- i i a = '~i.0.15)

~ G K , i S # , Suatu paguj ian k m ~ l m pejmtm IB fehh d i l d d m n pads 25 e b r ps jantan Fries Bolland pada Lima perusahan peteznakw sapi perah di Jawa Barat dm Jawa Ten&.

Penelitian 4;ni bemi-83:- penelltian 2232 catatan p d u k s f sum aapi perah 33 &mi 1219 eltor sap2 perah betbra d ~ x i t&m 1Y1 sampd. tahm 1%2* I '

U jlt &ria% d S l a W b d m p ~ met&@ C o n t e m ~ o ~ ~ _CUW~X&OG ( c c ) ~ Wwil uji 2ni ~~~emupjuldsan bahwa n%l&f CC t? ekor pejantan pasitif dan 8 ekar pejawltm negatif. N i l & teaeseht berkdcrm d m i +f 050.75 kg sampa$ -330.33 kg, dan empat pejantan dfantaxmya un@.

2id& terdapat pexbdasul ymg ny&a mtma dsya, produksi sum xa- ta-rata sap5 perat3 has31 XB 3056,l 621.5 kg dm- daya pmduksf ausu xatamta hlas&lnonXB 299f.50& 49*5 kg, H a 3 hi karenk pada u-ya semen bku ymg telah d i h p o s ke Indonesia berm& actrf sap5- sapi pejmtm ymg pmdukzsi meu da-ra%s d y a df. nagma a s w a 3500 kg per ldctasi, s d m d ! di Irdonesia telah terdapat bebera- pa pct,om&an yang kil. produksi sum xahadaraya 4500 kg per laktwi*

TMak terdapat saak: cornlation ymg nyaka entam dexdat Ice; un lm pejantm pm&wil+ Bemen bela impor di negara, aa6lnya den- d ~ ~ o n s s i s ( r = 0 . ~ ) .