Bioscience Methods 2025, Vol.16, No.3, 117-136 http://bioscipublisher.com/index.php/bm 122 Figure 2 Implementation of "our happiness plan" (Photographed by Wenjun Cai) 3.2 Ecological stability of diversified breeding systems In traditional agriculture, single breeding is often prone to disease proliferation and market risks. Pan'an has created a "small-scale, multi-variety" ecological breeding system by developing diversified local specialty breeding such as native chickens, native pigs, and native bees, thereby improving the ecological stability and risk resistance of the entire breeding industry. First, Pan'an vigorously promotes the forest chicken farming model. Local farmers adapt to local conditions and raise native chickens under the bamboo forests in the mountains, allowing the chickens to move freely and forage for insects and weeds. This not only reduces the input of feed and veterinary drugs, but also uses chicken manure to fertilize the forest to form an ecological cycle. Practice has shown that the disease incidence rate of native chicken farming under the forest is significantly lower than that of high-density enclosures, and the quality of chicken eggs is excellent, which is in short supply in the market. Through cooperative organizations, the county unites scattered native chicken farmers to develop a "10,000-feather ecological native chicken" base. By the end of 2021, the county's native chicken breeding volume reached 200,000 driving more than 300 households to increase their income, and the reputation of the native chicken and egg brands has grown. The second is ecological native pig breeding. Pan'an has developed the "Thousand Native Pigs" project by combining rural kitchen waste resource recycling and forest grazing. Farmers raise local black pigs, and the feed is mainly coarse materials such as rice bran and potato vines and kitchen waste. The pig houses are regularly cleaned of manure for composting and returning to the fields. Some towns have also built "shared pig pens", where the village collective builds standardized pig houses, low-income farmers adopt them for breeding, and the company provides repurchase contracts and technical support. Under this model, the incidence of pigs is lower, and the meat quality is more popular with consumers. Each ecological native pig can be sold for more than 20% more than feed pigs (Bai et al., 2019). Driven by the "company + farmers", the annual output of Pan'an native pigs has stabilized at a scale of thousands of heads, which not only protects the ecological environment from large-scale breeding pollution, but also allows retail investors to share the market dividends. Secondly, Pan'an has made full use of the Chinese bee breeding tradition to create characteristic bee industries such as "the first bee village in central Zhejiang". 80% of farmers in Huanglinkeng Village, Shanghu Town, breed Chinese bees (Chinese honey bees), and there are more than 600 beehives in the village. The village has established an ecological medicinal honey cultural park and planted 300 acres of Chinese medicinal flowers and nectar plants to ensure sufficient nectar sources. Beekeepers strictly use traditional methods to breed Chinese bees, without using antibiotics and other drugs, so that honey is pure and natural and pollution-free. In the spring of 2025, the first batch of spring honey harvested in Huanglinkeng Village weighed 150 kilograms, bringing in more than 30,000 yuan in income. Today, bee breeding has become the "common wealth industry" of the village, with an annual honey output value of hundreds of thousands of yuan. More importantly, the bee industry has driven the protection of the local ecological environment, and the villagers have spontaneously maintained the diversity of the surrounding vegetation to create a good home for the bees. Through the above diversified ecological breeding practices such as native chickens, native pigs, and native bees, Pan'an has built an agricultural ecological network with diverse species and complementary functions. Diversified breeding improves system resilience. When an industry is hit by the market or epidemics, farmers can rely on other industries to maintain their income, reducing the risks brought by a single industry. At the same time, ecological reciprocity has been formed between different breeding systems: raising chickens and bees under the
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