The purpose of this study is to find out the difference in the success rate of Artificial Insemination of Balinese cattle in Rimbo Bujang Subdistrict, Rimbo Ilir, and to know the influence of spermatozoa resistance and spermatozoa abnormality on the success of Artificial Insemination in Balinese cattle. The method used is the survey method, while the sample withdrawal technique is used clustering. Data analysis uses multiple linear regressions. The results showed that the success of Artificial Insemination based on Service per Conception (S/C) showed the number 1.56 means the success of IB is good, while judging from the calving interval (CI) value in cattle which is 12.9 months, it means it is ideal. It can be concluded that the success of Artificial Insemination (IB) is good, while motility is the success of Artificial Insemination (IB), as well as the percentage of life and spermatozoa abnormalities does not affect the success of Artificial Insemination (IB) in Balinese cows.

The  objective  of  the  study  was  to  observe  response  of  feeding Bali  cattle multi  mineral  block (MMB) as a feed supplement on the body weight gain of Bali cattle. Nine male Bali cattle aged between 1 – 1,5 years were allotted in the Randomized Block Design consisted of 3 treatments and 3 blocks of body weight.  Parameters  measured were  roughage  intake,  absolute  and  relative  body  weight  and  feed efficiency. .Result  of  this  experiment  shows  that feeding  MMB  has  influence  (  P  <  0,05  )  on  roughage intake and body weight gain ( P < 0,01 ).  Duncan multiple  range test shows that body weight gain of cattle feed treatment R 1 and R 2 was high than those had treatment R0. It can be concluded that feeding MMB as a supplement could increase body weight gain of Bali Cattle.