Productive and Reproductive Performances and Blood Profile of Bali Cows Supplemented with Calcium Soap-soybean Oil

Objective: This study was aimed to evaluate the effect of calcium soap-soybean oil on productive and reproductive performances as well as blood profile of Bali cattle. Materials and methods: this study used 12 heads of Bali cattle with the average body weight of 230kg at Sobangan Breeding Centre, Bali Province, Indonesia. There were 2 dietary treatments i.e., control (no supplementation of calcium soap-soybean oil) and control + calcium soap-soybean oil 5%. Control diets which consist of Napier grass and concentrate with ratio approximately 80:20 and all treatment diets were offered 60 days. All cows were oestrus synchronised using PGF2@ injections and continued with artificial insemination. Variable measured were feed intake, body weight gain, average daily gain, feed efficiency, service per conception, blood nutrient and haematology. Results: the results showed that the addition of calcium soap-soybean oil signicantly increade (P<0.05) feed concumption of forage and concentrate, but slightly decreased body weight gain and efficiency compared to the control treatment. Moreover, the addition of calcium soap-soybean oil signicantly (P<0.05) enhanced reproductive performance of Bali cows such as pregnancy rate and proportion of cattle with service per conception (S/C) = 1. However, the use of calcium soap-soybean oil did not effect blood metabolites and blood haematology except white blood cells and leucocyte differentiation such as neutrophil, lymphocytes and monocyte. Conclusion: The use of calcium soap-soybean oil has positive effect on reproductive performance without altering the helath status of Bali cows