CATDOLL : CATDOLL: How to deal with dried cow dung in the field to prevent it from getting infested with insects?

Add water and stir to make it moist, then pile it into a cone shape (try to concentrate it, don't spread it out), take soil from the spot, add water, rice bran or wheat bran and mix it into mud, seal the dung pile with mud about an inch thick, and let it ferment naturally to mature. During this period, a lot of heat will be generated, and the high temperature inside the dung pile can kill insect eggs.

Huang Bingquan is a famous cattle breeder in Guangxi. He always has unique ideas in raising cattle. Cows like water, so he specially installed shower facilities in the breeding area, which can be called a "cow hotel". After taking a bath, the dairy buffaloes can also enjoy wonderful music and massage. The humanized service not only makes the dairy buffaloes produce more milk, but also improves the quality of meat. Even French experts nodded frequently after visiting, and Huang Bingquan gained both fame and fortune. But this great man was worried about one thing and couldn't eat or sleep well.

It turns out that the 4,000 cows on the farm produce 60 tons of manure every day, which is a train car! It is a big problem to put so much manure anywhere. The treatment of manure in large-scale cattle farming is a long-standing problem. Huang Bingquan initially thought that the manure could be used to fertilize the fields, but the farmers were reluctant to take it because it was too far away. As a result, the manure accumulated more and more, the stench was overwhelming and there was no place to deal with it, which had a great impact on the surrounding residents.

If cow dung is not handled properly, it will affect the environment, the image of the cattle farm, and over time it will inevitably affect the entire business. One day in 2004, Huang Bingquan went on a visit to another place and saw that someone's cattle farm had built a biogas digester, which was very effective in treating dung. So he also started to think about building a biogas digester. Huang Bingquan built several thousand cubic meters of biogas digesters at once, and they were connected into a piece. The dung of dairy buffaloes entered the biogas digester and was fermented into biogas residue and biogas liquid. These biogas residues and biogas liquids no longer have a bad smell, and they are better than cow dung fertilizer when applied to the fields. Not only that, biogas has a great use for Huang Bingquan. "Employees use gas to cook, we use gas to generate electricity, and we use gas to burn boilers."

In this way, production costs are greatly reduced, saving more than 1 million yuan a year. Since the cow dung entered the biogas digester, the environment of the cattle farm has improved. However, after a period of time, the problem of cow dung came again. After all, the space in the biogas digester is limited, and the fermentation of biogas liquid also requires turnover time. However, the cows have to defecate every day, and in the end, the cow dung cannot be used up. Seeing the "disaster" increasing day by day, Huang Bingquan was troubled again.

First taste of sweetness, raising earthworms with cow dung to feed chickens and fish and earning 3 million yuan a year

One day, Huang Bingquan was walking in the woods and saw free-range chickens resting under a tree looking for insects to eat. He immediately got an idea. It turned out that among the insects eaten by the chickens, there was one that he was most interested in - earthworms.

Earthworms are high in protein. If chickens can eat them every day, it will not only save feed, but also improve the quality of chickens. The key is that there is a new way to use the excess cow dung. Huang Bingquan decided to use cow dung to raise earthworms and use earthworms to feed chickens. Huang Bingquan thought that earthworms are available in the field and are very large, so they should not be too difficult to raise. Later, he found that this kind of earthworm breeding is not ideal. Although they are large, they reproduce very slowly. Later, he found that there are earthworm varieties specially used for artificial breeding, such as "Taiping No. 1".

So Huang Bingquan started a new attempt, even using the open space under the fruit trees on the roadside. Huang Bingquan deliberately placed the earthworms under the fruit trees and covered them with a sunshade net, which not only blocked the light, but also regulated the temperature. In this way, a suitable growth environment was created for the earthworms. The fermented cow dung was very loose, which was exactly what the Paizhao earthworms liked. It was not only suitable for them to live in, but also provided them with rich nutrition.

The native chickens eating earthworms not only reduced the breeding cost, but also improved the quality of the chicken. Because of their very fragrant taste and chewy texture, these insect-eating native chickens are favored by consumers. They are sold at 80 yuan per kilogram in the market, but are still in short supply. Nearly 100,000 native chickens every year bring Huang Bingquan another considerable fortune.

Huang Bingquan's cattle farm is expanding. He not only raises dairy cows, but also local Weizhou yellow cattle. The cow dung is more than before. At this time, biogas digesters and chicken farming can't consume so much cow dung, so he has to continue to find a way to use it.

In 2010, Huang Bingquan made a very bold decision to invest tens of millions of yuan to repair a 100-meter-long dam breach at the seaside, and claimed that this time he had found a fundamental solution for cow dung. At that time, he had his eyes on a salt field that was abandoned due to a dam breach. The dam breach was more than ten meters deep and hundreds of meters long, and the flood had washed out a deep lake here.

The reason why Huang Bingquan spared no expense to build the dam was to raise marine fish here, which was also related to cow dung. In fact, Huang Bingquan had tried to raise fish with cow dung a few years ago. There is a 300-acre pond around Huang Bingquan's factory. He used to use cow dung to fertilize the water and raise freshwater fish, but he always felt that this was not good for the environment. Later, there were a large number of earthworms. Huang Bingquan thought that earthworms could not only be used to raise chickens, but also fish! Because when he was a child, he often used them as bait when fishing, and fish loved to eat them. Earthworms are used as animal bait to feed fish, and their feces can fertilize the water, and the effect is better than cow dung. Raising earthworms with cow dung and then feeding freshwater fish with earthworms is both profitable and environmentally friendly. Later, he conducted experiments in several large ponds. Unexpectedly, in a year and a half, many fish weighed more than 4.5 kilograms, and the taste was very delicious. Compared with fish fed with commercial feed, I don’t know how many times better!

Creating an ecological aquaculture model at sea, turning cow dung into a "green gold mine"

After the successful experience of raising freshwater fish with earthworms, Huang Bingquan thought that since cow dung is always a troublesome thing, it is better to expand the scale of fish farming to consume more cow dung. So Huang Bingquan had the bold idea of ​​building a dam to raise fish. Through experiments, he found that some marine fish also like to eat earthworms raised with cow dung. Earthworms can not only feed marine fish, but their feces can also play a role in fertilizing seawater. In this way, there are both plant baits and animal baits in the seawater, and different breeding species have food, and the feed cost is extremely low. But on this vast water surface, what is the most suitable way to raise fish?

Huang Bingquan did not simply raise fish like others, but mixed breeding, shrimp, snails, crabs, fish, and the density was not high. He wanted to seek a natural effect and wanted to use the vast water surface to raise high-end seafood. For this purpose, Huang Bingquan invited local aquatic experts to mix several species, fully utilize the water space in the pond, and carry out ecological three-dimensional breeding.

The water body is large, the air is fresh, and the dissolved oxygen is sufficient, so there is no need for artificial oxygenation. Because the ecological environment of the water body is relatively good, fish, shrimp, crabs, and shellfish rarely get sick, and a certain food chain can be formed between different species. Usually, in addition to supplementing the cultured earthworms and earthworm castings, no other feed is generally fed, which is basically a simulated natural state.

What's more interesting is that here, the beach and the pond are connected, and a lot of natural bait and fish species usually come in with the tide. With the entry of seawater, natural seedlings from outside, such as fish fry and shrimp fry, are also brought in, and the breeding species and bait are more diverse. Of course, only wild species are far from enough, and sometimes it is necessary to artificially release seedlings such as yellowfin bream and mullet.

Unlike most people's breeding methods, Huang Bingquan not only releases a variety of fish fry, but also releases the same species in batches. This may seem troublesome, but in fact he wants to make breeding closer to a natural state. In this way, there will always be high-quality seafood on the market throughout the year, avoiding the risk of concentrated fishing and marketing.

Huang Bingquan's approach has another benefit - no other feed is needed during the entire breeding process, greatly reducing the breeding cost. After several years of operation, the water environment here has been maintained very well, and the quality of seafood has not only steadily improved, but the price is also surprisingly high, and it is very popular in the market.

In 2013, the net profit from cow dung was as high as 10 million yuan. Huang Bingquan's story with cow dung is far from over. With a spirit of not admitting defeat, he is still competing with cow dung, and wants to build more cattle farms by taking advantage of the local advantages, so that more cow dung can become a usable green resource.