Ruminant Farming and Post-Mining Reclamation

To fertilize post-mining soil, organic matter or compost is important and much needed. Land or post-mining land is damaged with a very low fertility level so it needs to be processed (treatment) first before it can be planted. The choice of plants depends on the purpose of using the post-mining land, whether for agriculture, forestry or others. Planting fast growing trees and short rotation coppice i.e. legume group trees is the best option. In addition to the ability to survive, its deep roots are also able to withstand erosion and the ability to symbiotic with azetobacter so that it binds nitrogen in root nodules so that it fertilizes the soil. And furthermore, the legume tree can be used as a source of animal feed (the leaves), bioenergy (the wood) and honey (the flowers).

The creation of livestock and their supporters such as forage plantations is like an ammunition factory to reclaim the post-mining land. The wider and faster the target time for reclaiming the land, the larger the farm required. Ruminant farms with thousands or even tens of thousands of livestock can be made with this purpose. Although the main objective is to produce compost for post-mining land reclamation, the indirect benefits from the farm are no less large. Even from the farm business can get big financial benefits. The main and common problem faced by mining entrepreneurs is that they are reluctant to do reclamation because it costs a lot and does not provide financial benefits. But when the reclamation activity does not reduce the company's finances even provide large profit, of course it will be a different story. The volume of mining carried out should also be proportional to the repair or post-mining reclamation.

To maximize the reclamation, biochar needs to be used. The use of biochar will make compost in post-mining land not easily lost after being washed by rain, maintain soil moisture because biochar is able to hold water (water holding capacity), raise soil pH so that soil microbial activity is more optimal and more nutrients are absorbed by plants, and biochar also will become a home or colony for soil microbes so that it will further fertilize the soil. Meanwhile, in terms of climate change mitigation, the use of biochar in the soil will also store carbon (carbon sequestration) for a very long time, up to hundreds of years. Carbon credits with a carbon sink mechanism as part of the CCS (carbon capture and storage) application can also be obtained. The carbon trading market is predicted to get bigger as global awareness of climate change and biochar as one of the solutions are also increasingly being applied, discussed and paid attention to by the earth's population.

The extent of post-mining land that reaches millions of hectares, the high demand for domestic meat as well as the export market, and the large amount of biomass waste that can be converted into biochar, post-mining reclamation should be a priority for mining entrepreneurs moreover, the reclamation activity does not reduce the company's profit but instead gives more profits. If this can be done, the environmental damage caused by mining can be minimized. Indeed, humans need various products that come from the mining to make their lives easier, but also not to the point that on the other hand the mining business actually damages the environment which will lead to disasters in the future.

Ruminant Livestock as a Solution for Logging Need (Tebang Butuh) in Community Forests

On average, community forest farmers only have narrow land for their forestry timber plantations, this makes it difficult for those who rely on forestry wood for their daily lives. Forest wood plants have a long cycle even for certain plant species up to decades. When there is an urgent need, for example a child wants to go to school, his child's marriage, and so on, the wood plant is cut down even though it is not yet time, which is commonly known as logging need (tebang butuh). Apart from that, the quality of the logs produced is also low, including the selling price as well as the quantity/productivity. The forestry industry with its installed capacity requires a large supply of logs of standard quality. The practice of logging needs (tebang butuh) to be avoided or minimized as much as possible so that optimal benefits will be felt by all parties, both community forest farmers and the forest industries.

To overcome the problems of daily life or urgent needs, ruminant husbandry can be the solution. The land around the main tree can be used as a place for grazing and legumes as a hedge as a source of forage. When the main tree such as albasia is still young, a number of plants such as vegetables and herbs (empon-empon) can still be planted and give good results. But when the main tree is big enough, the plant cannot tolerate shade, so its cultivation not effective even be a loss. Legumes such as calliandra, gliricidia and indigofera can be planted as a source of feed for ruminants (sheep, goats, cows or buffalo).

The ruminant's breeding cycle is faster than that of the forest trees. Types of livestock business that can be done such as breeding, meat production (fattening), milk production (milking) and even trading. Although export opportunities are open, especially sheep and goats, the domestic market is also large. For example, Yogyakarta needs up to 4000 sheep per month, especially for the cluster of satay stalls on Jalan Imogiri Timur, Yogyakarta Special Province. Not to mention the markets in Greater Jakarta and aqiqah. As for beef, Indonesia is also still lacking, which is currently supplied with buffalo meat from India, which accounts for nearly 60% of national needs. Farms like this can be a surefire solution to the problem of logging need (tebang butuh) that hinders the development of community forests at this time. The area of community forest also cannot be underestimated, even in some areas the area of community forest is larger than state forest. Nationally, Indonesian people's forests are estimated at 35 million hectares, while state forests reach 128 million hectares.

Biochar and Land Reclamation of Ex-Coal Mines

Reclamation of ex-coal mining land is the obligation of the mining company, but often this is not done properly for various reasons. These are mainly due to weak rule enforcement and light sanctions. With the area of ex-coal mines that has reached millions of hectares and the reclamation efforts are needed, but the realization in the field is still very minimal, making environmental damage even greater. The thing that can encourage efforts to improve the ex-coal mining land is the profit or economic factor that can be obtained. This means that if the reclamation effort also bring economic benefits - in addition to environmental benefits, of course - then the coal companies will also be happy to do so. So what activity is it?

The photo is taken from here

After the coal deposit is taken, the top soil should be returned to the land. The basic thing that needs to be done is to improve the quality of the soil so that it can be used for planting various crops. By improving soil quality, besides soil fertility can be restored and even increased, it also includes isolating (immobilizing) a number of harmful elements from the ex-coal mining land. Creating a profitable and sustainable business activity is the next step. The improved soil can then be planted and legumes are the best choice, this is because legumes are other than pioneer plant types with high survivability, strong and deep roots that prevent erosion, root nodules from azetobacter symbiosis by binding nitrogen from the atmosphere which fertilizes the soil also provides many other benefits. Ruminant husbandry is a profitable and sustainable business activity, because it mainly utilizes the leaves of the legume plant as a source of feed. The livestock manure can also be used to further improve the health and quality of the soil so that soil fertility continues to increase and is maintained. The wood from the legume plantation can also be used for productions namely briquettes, charcoal briquettes and even wood pellets.

As a basic thing and the entry point for the above business is improving the quality of the land or soil of the ex-coal mines. There are a number of ways to do this, but the use of biochar is one of the best options. With biochar not only increases the pH or acidity of the soil so that many nutrients will be absorbed by plants better and soil microbial activity to decompose organic matter is more active, but it is also able to absorb a number of harmful chemical elements in the soil, increasing soil organic carbon that can last hundreds of years and also absorbs the greenhouse gase from atmosphere. The biochar can be made from a number of agricultural, forestry and agro-industrial wastes, such as wood chips from logging or from palm oil mill waste such as empty fruit bunches and fiber. A number of areas in Kalimantan are not only rich in coal deposits and also currently many of these ex-coal mining lands are abandoned, as well as a lot of biomass materials such as forest waste and palm oil mill waste for the production of biochar.

In order to reduce CO2 emissions in the atmosphere, biochar is also able to absorb CO2 from the atmosphere (carbon sequestration) and is a carbon negative scenario. The biochar applied to the soil is a carbon sink, as an option for carbon credit other than carbon offset. In the current era of decarbonization, efforts to reduce CO2 level in the atmosphere are important. In Indonesia, where there is still a lot of forest land, carbon credit can be obtained from the absorption of CO2 by the trees in the forest, so that the forest acts as a carbon sink as well. But in other countries where the use of fossil energy is very large or massive, they must reduce the adverse climate impacts caused by burning fossil energy materials, especially coal. They can buy carbon credits on this biochar application.

 

Coal is the most widely used fossil energy for power generation in the world today and Indonesia is one of the producers of such coal. Although in the near future the use of coal will be reduced and in some countries it will be stopped altogether, but the negative impacts of coal mining are still many, damaging and even endangering the environment. This is an urgency to improve the land or ex-coal mining land which is estimated to reach 8 million hectares in Indonesia. On the one hand, coal power plants can buy carbon credits for biochar applications like the scheme above. Palm oil mills on the other hand also produce a lot of solid waste, especially empty fruit bunches (EFB) that can be used for the production of biochar. These big companies could collaborate to solve climate problems due to the increasing concentration of CO2 in the atmosphere. To this day, it is reported from the Mauna loa observatory, in Hawaii, United States that the concentration of CO2 in the atmosphere has exceeded 400 ppm or there is still an increase of about 2 ppm every year, even though the global target is to decrease the concentration to only 350 ppm.

Utilization of Marginal Land and Former Coal Mines for Ruminant Livestock and Charcoal Briquette Production

Photo is taken from here

The extent of marginal land including critical land and unused land which reaches more than 6 million hectares as well as ex-coal mining land which is estimated to reach 8 million hectares are environmental problems that must be overcome. Turning these lands back into productive land so that apart from preventing a bigger environmental disaster, it also provides other benefits for human life. One solution to this problem is to plant the land with pioneer plants of the leguminoceae group whose roots firmly grip the soil and are in symbiosis with azetobacter so that it fertilizes the soil such as calliandra and gliricidia as well as its leaves as a source of animal feed, flowers for honey production, and the wood for the production of charcoal briquettes. Or in other words, the establishment of the plantation besides having environmental benefits as an effort for conservation and land reclamation along with water conservation, of course, also provides benefits for ruminant livestock or the production of animal feed and the production of charcoal briquettes. Ruminant farms, namely sheep, goats and cattle, are very suitable to be developed using the leaves of the plantation. The combination with charcoal briquettes, namely by using the wood, is an ideal combination or integration. In a number of countries the charcoal briquettes are used as fuel for grilling BBQ from lamb, goat and beef. So in addition to all parts of the tree can be utilized also even the final product of livestock in the form of meat and wood processing so that it becomes charcoal briquettes also meet again. An interesting and unique blend or integration.

The need for red meat, namely lamb, goat and beef in the country itself is still lacking, so it requires an adequate supply. In terms of goat and lamb meat, the need for the Jabodetabek (Jakarta, Bogor, Depok, Tangerang and Bekasi) area alone has not been met, so it is supplied alternately from East Java, Central Java and Lampung alternately. In addition, according to Aspaqin (Association of Indonesian Aqiqah Entrepreneurs) there has been an imbalance in the supply of sheep and goats due to the large number of female productive sheep and goats being slaughtered. This condition causes the sustainability of the supply of sheep and goats to be disrupted. According to data from Aspaqin that they collected, 63% of female sheep and goats were slaughtered from a total of 331,693 slaughtered tails. Of course there are still many who are not recorded because there are still many aqiqah entrepreneurs who are not members of the Aspaqin. In addition, there are also many stalls for eating goat dishes, such as satay stalls which still slaughter productive sheep and female goats. Aspaqin continues to strive for education and socialization to improve these conditions, including a proposal to provide punishment for the slaughter of these productive females.

Meanwhile, in the beef cattle sector, Indonesia has the advantage of fattening cattle (feedlot). With the availability of a lot of agricultural wastes and agro-industrial wastes in Indonesia, this business is very competitive, even indonesia is the best. Moreover, this is by creating a plantation that is specifically designed for the feed source by utilizing land that can be said to be unproductive at first. By only taking about 100-120 days, the fattening was successful or completed, although in general, breeder or seed cattle are generally still imported from Australia. Australia, especially northern Australia is the center of the seed cattle. With the vast grazing area there, the cost of producing feeder cattle is very competitive and cannot be done well in Indonesia. Although there are a number of discourses to produce seed cattle in eastern Indonesia and palm oil plantations, the facts are still not or are still very minimal. In addition, according to Gapuspindo (Indonesian Beef Cattle Farmers Association), the domestic demand for beef has not been met or there is still a shortage of around 60% and this shortage is filled by imports of buffalo meat from India. Buffalo meat from India actually has to be sold cheaper than beef, but in fact it is the same as beef. This condition is getting worse, especially in the period leading up to the Eid al-Fitr holiday with lots of illegal meat circulating, such as wild boar meat.

Charcoal briquettes are a product of wood processing from the plantation. The production of charcoal briquettes using wood raw materials must also be managed properly so that it can be sustainable. The important thing to note is that the harvest of wood for the production of charcoal briquettes should not exceed the production of wood from the plantation itself, for example the need for wood for the production of briquettes is 1000 tons / month, the speed of wood production from the plantation is at least the same as the wood harvested every month. Charcoal briquette production techniques are also available in 2 options or routes such as the scheme below. However, route 1, which is briquetting before carbonization, is more in demand because the quality of the briquettes produced is better. In this route, the wood biomass raw material has been downsized so that the particle size is suitable for the production of the briquettes and the dryness level has also been adjusted and then briquetted or pressed in a briquette machine without using additional adhesive. The briquette product is then carbonized so that it becomes the final product in the form of charcoal briquettes or commonly known as sawdust charcoal briquette.

 

Photo is taken from here

In addition to domestic consumption, sheep and goats are also export commodities to a number of countries. Information obtained from the Ministry of Agriculture's Pusdatin (Centre of datas and informations) that Indonesian sheep and goats have been exported, among others, to Malaysia and the United Arab Emirates (UAE). Basically, the choice to do sheep and goat export business is the choice of the breeders or farmers  themself and the specifications for the export market are also different for local needs. If the local market generally uses sheep and goats weighing 25-35 kg per head, the export market generally requires a weight above 35 kg per head. For example, for a large market for sheep and goats, Saudi Arabia, especially during the hajj season, reaches around 2 million heads or a quarter of the country's needs, which means it reaches 8 million heads per year.

And lastly, basically the need for food, especially animal protein and more specifically from ruminants sheep, goats and cattle will continue to increase along with the increase in the population itself. The world population is estimated to reach 10 billion in 2050 or 1.3 times today and Indonesia's population will reach 319 million in 2045 or 1.2 times from today. Another thing that deserves attention is Indonesia's demographic bonus. The demographic bonus with the dominance of the productive young generation should be a separate strength for the Indonesian nation if it is supported and directed properly. This sector is certainly one solution. With the vast land area in Indonesia that can be used for this business, God willing, it will overcome various important problems today such as food security, preventing environmental damage, creating jobs, improving living standards, improving food quality and so on.     

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.

Complete Feed Production With Integration of Energy Plantations and Community Empowerment

Feed and markets are the two most important things in the world of livestock. Farmers who are able to get safe, nutritious, affordable, adequate and sustainable feed will produce the best quality and quantity. One of the safe categories is not GMO. For more details, you can read it here. It is possible to make these feeds yourself by utilizing the local potential. The expertise to provide feed is of course very important for professional farms. Likewise, broad market access allows the livestock business to be increasingly profitable. The current era of the internet is also very supportive of gaining such broad market access. Social media such as whatsapp groups, telegram, twitter, youtube and so on can be used for this.

To get complete nutrition so that it becomes a complete feed, of course, cannot be obtained from just one source. Malnutrition which results in decreased quality and livestock production will inevitably occur, if the feed nutrition is inadequate. It is possible that the development of an energy plantation or a biomass plantation with leguminoceae plants such as gliricidia and red calliandra is very likely to be integrated with the livestock business. Sheep, goat and cow farms are the best choices for this farming business. It is also hoped that later progress in the renewable energy sector from energy or biomaterial plantations will be in line with the livestock business. While glicidia leaves or calliandra have the main content in the form of protein which can reach 25%, other sources of nutrients such as sources of fiber, vitamins and minerals can be obtained from the environment around the plantation. Communities around the plantation area can be empowered to plant these nutritional complementary crops or take advantage of their various agricultural wastes such as straw, grass and so on. 

The leaves of gliricidia or calliandra as a source of feed are estimated to be a maximum of 30% of the complete feed. With leaf productivity per hectare of around 30 tonnes / wet year or 18 tonnes / dry year. This means that for every 1000 hectares of gliricidia plantation will produce 18,000 tons / year of dry leaves. If a goat / sheep eats 3 kg / day (30% of the total consumption of complete feed), it means that for 1 year 1 sheep / goat consumes about 1 ton of dry leaves or with a volume of 18,000 tons / year means that it can be sufficient for 18,000 sheep / goats for 1 year.

The animal feed innovation must also be carried out so that the conversion of feed to meat product, milk or breed is high, even the feed formulation should be adjusted to the age level of the livestock. Researches to obtain varied feed formulations or recipes, especially those that are adaptive to local potential, are very important. This includes identifying and developing as many feed sources as possible. The more identified feed sources and feed formulations, it is hoped that the livestock business will grow rapidly. Case studies on gliricidia and calliandra leaves have several anti-nutritional substances, so these substances must also be reduced or even completely eliminated so that the feed nutrients are absorbed effectively. Anti-nutritional substances in gliricidia are dicoumerol, HCN (cyanide acid) and nitrates, while red calliandra is an anti-nutritional substance of tannins.