Moving waste material to the compost production unit. |
I look back this
week to my days training at the Songhai Centre in Porto Novo, Republic of
Benin. And as I do this, I cannot but look back at how what a lot of materials
from agricultural production are reused or recycled. I would also highlight some practical ways
that I have come about in my studies as a Young Professional in Agricultural
Research for Development.
1. Animal Dung and poultry droppings: These two wastes both from
animals such as pigs and cattle and droppings from layers or broilers are very
useful in the production of biogas. In third world countries like Nigeria where
I come from, the cost of power (electricity) is high and irregularity in
supply. Thus Biogas is a very good means of generating power. Biogas can be
used for cooking and even electricity generation.
2. Bark of ginger – I found this very thrilling when I first came
across it. I was working in the agro processing section. Each time we were to
produce ginger juice; we had to peel the gingers. But we didn’t just throw away
the bark, we grinded it into powder and used as seasoning in the meat and fish
processing unit where it is used in grilling. This results in a very sweet
taste and aroma when you eat. Individuals in food processing can take a clue
from this.
3. Water Hyacinths: even though this is seen as a harmful plant or sea
weed, it has it usefulness when used. Water hyacinths can be used to detoxify
water bodies in enclosed areas. More specifically I recall chopping large
quantity of water hyacinth for biogas production. It is mixed with the
droppings and dung in biogas production.
4. Cocoa Shells: once the beans
have been shelled. The empty shell can be dried in the sun or drying machines
and then ground in a mill to a powder. This can then in turn be fed to
livestock. This shell contains theobromine, fat, vitamin D and has a better nutritional
output. Research shows that the cocoa shell flour may be served as a substitute
to maize to feed poultry, cattle and pigs up to 35% of their ration. The milled
shell can also be used as crop fertilizer.
5. Feed residues from Grass cutter rearing; when grass cutters eat they
usually leave behind bits from their feed especially when given guinea grass.
This residue is used in Maggot production for fish farming. This residue is
mixed with waste from the abattoir and used to serve as an attractant for
houseflies which in turn lay eggs to form maggots after 72hours.
By and large, it is clear how if we look critically into agriculture
we discover that the so called waste can be reused to do so many practical
things that would not only help reduce waste but also increase productivity and
cut down cost.
This blog post is a contribution to the GO GREEN AND STAY COOL Initiative.
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