Production of Box Shaped Hay From Gliricidia Leaves

Apart from market, feed is another important factor in livestock business. Striving for and ensuring the availability of feed throughout the year both in quality and quantity is a challenge in itself, especially industrial-oriented ruminant farms. The productivity of livestock products is largely determined by these feed factors. The important role for livestock is for the growth of young livestock and for maintaining life and producing products (milk, calves/lamb, meat) and power for adult livestock. Another function of feed is to maintain endurance and health. In order for livestock to grow as expected, the type of feed given to livestock must be of good quality and in sufficient quantities.

In addition, livestock productivity itself is influenced a lot by environmental factors, namely up to 70%, while about 30% is genetic factors. And among these environmental factors, the aspect of feed has the greatest influence, which is around 60%, for example superior sheep farming such as the dorper type but if the quality and quantity of feed is not met then the results are also not optimal. Meanwhile, in terms of livestock business, the cost of feed is also the largest production cost, namely 60-80% of the total production cost. So it is very natural that attention or focus on feed issues is very important.

Seeing the above conditions, processing technology for animal feed is important. The purposes of animal feed processing include preserving nutrition and extending shelf life. Drying the leaves of gliricidia or calliandra to a moisture content of about 15% is one such effort or commonly called hay. By making hay the two objectives of processing animal feed above, namely maintaining nutrition and extending the shelf life can be achieved, but with a large volume of dry feed or hay (bulky) it will be inefficient in using space for storage or if it is to be used in other places where need quite far transportation. This is why it is necessary to apply biomass densification technology to solve this problem. Hay compaction into blocks or box shaped is a practical and easy undertaking. The equipment and compaction process into box shaped is also easy and cheap, compared to other biomass compaction technologies such as pellets or briquettes.

A sheep or cow farm should be built near the energy plantation so that they can easily get a source of feed for the gliricidia leaves. The leaves are then made hay and compacted into the blocks / box shaped. And because gliricidia leaves are a source of protein, so to be a complete feed, another source of feed is needed. This can be fulfilled by the surrounding community with community empowerment patterns or for more details, please read here. Sources of feed from the community, for example a source of fiber from grasses or agricultural waste, can also be made hay, so that the farm is available as a complete feed (complete feed) which is safe for the operation of the farm business. And because the estimated leaf production from energy plantations is very abundant, some of the hay that is produced can also be sold elsewhere. 

Technology is basically a tool to achieve a goal. From a technological point of view, namely biomass densification, besides the raw material for glicidia leaves can be made hay, the leaves can also be made into pellets or briquettes. The main difference between pellets and briquettes is only a matter of size, briquettes are bigger than pellets. The form of puck briquettes like the photo above is the best form for animal feed applications. From a technical perspective, pellets and briquettes are also denser or have a higher density than hay. The dust problem in hay can also be reduced by making these pellets or briquettes. But it is true that making pellets or briquettes requires higher investment costs and the production process is more complex.