Abstract
The objective of this research was to investigate the effect of Aspergillus oryzae on fermentation of mixture of rumen contents and jackfruit peel on in vitro gas production and digestibility. The method used in this study was an experiment using a randomized block design (RBD) of 4 treatments and 3 replications. The treatments including of T0 = 50% rumen contents + 50% jackfruit peel, T1 = 40 % rumen contents + 60% jackfruit peel + 0,4% Aspergillus oryzae, T2 = 30% rumen contents + 70% jackfruit peel + 0,4% Aspergillus oryzae, T3 = 20% rumen contents + 80% jackfruit peel + 0,4% Aspergillus oryzae. Variables observed were gas production, dry matter digestibility (DMD), and organic matter digestibility (OMD). Data were analyzed by using Analysis of Variance (ANOVA) from Randomized Block Design, if there were significant effect between the treatments then tested with least significant different (LSD). The result showed that fermentation of mixture of rumen contents and jackfruit peel have highly significant effect (P<0.01) on gas production, and significant effect (P<0.05) on DMD and OMD. Gas production, DMD and OMD of fermented mixture of rumen contents and jackfruit peel are higher than control without fermentation. It is concluded that the higher jackfruit peels the higher gas production, DMD and OMD.
Highlights
Animal husbandry is the activity of raising livestock for cultivation and business
The treatments were T0 = 50% rumen contents + 50% jackfruit peel, T1 = 40 % rumen contents + 60% jackfruit peel + 0,4% Aspergillus oryzae, T2 = 30% rumen contents + 70% jackfruit peel + 0,4% Aspergillus oryzae, T3 = 20% rumen contents + 80% jackfruit peel + 0,4% Aspergillus oryzae
Variables measured in this study were in vitro gas production, Dry matter digestibility (DMD), and organic matter digestibility (OMD) from in vitro gas production residues [4] and the values of a, b and c are calculated by the formula [5]
Summary
Animal husbandry is the activity of raising livestock for cultivation and business. Livestock is very important as a supplier of animal product such as meat and milk. There are three important factors in the livestock business, namely breeds, feed and rearing management. Feed is an important factor that greatly affects livestock productivity and feed costs are the largest in livestock business. In ruminant farm the availability of forage is absolutely necessary. Changes in land use and climate will limit the availability of forages. Indonesia has 2 seasons, namely the rainy season and the dry season, where it is very influential on the supply of forages. Forage can be obtained but in the dry season forage becomes scarce and difficult to obtain
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