Abstract
Waste of cajuput leaves (Melaleuca cajuputi Powell) has the potential to be used as an alternative cattle feed because it has a fairly high nutritional content. The nutritional content of cajuput leaf waste needs to be improved before being used as an alternative feed. The fermentation process can increase nutrient content in cajuput leaf waste and increase the digestibility of organic matter (OMD), dry matter digestibility (DMD), Ammonia (NH3), and Volatile Fatty Acid (VFA). This study aimed to determine the improvement of cajuput leaf waste nutrition with the help of yeast as well as the effect of fermented cajuput leaf waste along with a mixture of concentrates and field grass on digestibility, NH3, and VFA which were carried out in vitro test. The results showed the nutritional content of cajuput leaf waste fermented by yeast of Aspergillus chevalieri had the best value of protein 16.03%, fiber 16.92%, and fat 5.93%. The treatment R4 (50% cajuput leaf waste + 25% concentrate + 25% field grass) had the best digestibility (DMD=46.12%; DMO=32.08%), NH3 (8.37mM) and VFA (168.5mM) production.
Highlights
Organic waste is the alternative feed commonly used in the farms
One alternative feed that can be used as a substitute for conventional forage which is usually reduced its availability, especially in the dry season is Cajuput leaf waste (Widiana et al, 2014)
Cajuput leaf waste was obtained from the Jatimunggul Cajuput oil factory, Indramayu
Summary
Organic waste is the alternative feed commonly used in the farms. Organic waste is used because it is cheap, easy to obtain, abundant viability, and has good quality. Feed ingredients consumed by livestock must have good nutritional value for animal health. One alternative feed that can be used as a substitute for conventional forage which is usually reduced its availability, especially in the dry season is Cajuput leaf waste (Widiana et al, 2014). Waste of Cajuput leaves consists of 50% organic compounds of cellulose, lignin and other organic compounds (Rattanaburi et al, 2013; Dewi, 2016). The main obstacle for the use of organic waste for animal feed is the low nutritional value and digestibility
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