Author:
Nurfatahillah RK,Cusiayuni A,Jayanegara A,Wiryawan KG,Evvyernie D
Abstract
Abstract
Palm oil is an abundant source of oil in Indonesia and some other tropical countries. This research aimed to investigate the effect of palm oil supplementation levels on in vitro rumen fermentability by integrating data from various related studies. The data used were 40 data points from 13 studies which reported different levels of palm oil supplementation on in vitro rumen fermentability and nutrient digestibility. Data were tabulated, uniformed for the unit in each parameter, then analyzed using a linear regression method by employing SPSS software version 20. The results showed that palm oil supplementation significantly (P<0.05) increased bacterial population and isobutyrate proportion, while reduced protozoa population, and tended to reduce total volatile fatty acids (P<0.1). Supplementation of palm oil did not affect dry mater digestibility, organic matter digestibility, methane emission, pH, total gas, ammonia, acetate proportion, propionate, butyrate, valerate and isovalerate. It can be concluded that palm oil supplementation modifies some parameters of in vitro rumen fermentation.