Factors affecting the dilution rate of bovine and buffalo semen

During the lnst few yenrs,highly sophistic2ted techniquesin progeny testing of bulls and in semen preservntion wer-eintroduced, Therefore,it seems neeessnry to utilize ully theavad.Lab Le potenti: 13 of these bulls in order to ec onorm.z e such.pr-ac t.Lc e s for Artifiei2,1 Insemin;-.tion. These fo,cts hic,hlightthe importc~nee of stu dd.e e on fee tors re La t e d to hc.ndling ofsemen. the number of spermD..tozo- required for conception and onthe effect of different fnctors influencing c oncep tunsBearing in mind the great shortccge of proven buffnlo bulls inEgypt, the present atudy is en integrc.1 par-t of [’ plan aimed etao Lv Lng this problem end to e Luc Lda t e some of’the f aet or oo.ffecting the preserving ability of buffalo semen i.e. the bestdiluent and the optimum dilution rnte.Ej2.cu1ates ob tr.Lne d from ’’7ight eexuc.LLy mc+ur e bulls(five buffn10es 2nd three Friesio.ns) were used in the presentstudy. Three df.Luerrc s we r e considered c1.IJ.d used for both species.These diluents were Egg yolk-citr ~te (E.Y.C.); milk diluent(M.D.) and 0. protector used for buf f c Lo an d bull semen withE.D.T.A •• glyoine end sodium c Lt r at e (BEGLI). Five dilutionrntes wer-=; used: 1:10,1:20.1:40,1:80 and 1:160. Diluted semensamples wer-e kept nt refrigeration tempernture (5 =c) andexamineddnily for mot i Lf, ty. Vicbili ty indices of ape rme+oaoa