Porcupines with 12 yen a day in feed costs net 3 million yen a year: Dong Nai's reverse calculation

A farmer in Dong Nai Province, southern Vietnam, earns a net profit of VND 500 million a year—about 3 million yen—from raising not pigs or chickens but porcupines (nhim in Vietnamese). The feed is mainly vegetable scraps, fruit, and okara from the market, and the feed cost per animal is about VND 2,000 a day—only about 12 yen. When it comes to Vietnamese meat, commoditized pork and chicken and seafood are the leads, but behind them, high-unit-price specialty livestock is quietly building up. For Japanese meat and farm-product buyers, this case is a yardstick for measuring "how far Vietnam's protein sources will diversify." The design philosophy of livestock aiming for high returns even at small scale The case of an electrician who staked his comeback on frog farming in Nghe An Province has something in common with this as well.

Net profit of VND 500 million a year on 250 square meters: what happened

The protagonist is Phan Thanh Tung of Vinh An town, Vinh Cuu district, Dong Nai Province (Tri An commune, Dong Nai city, after administrative reorganization). On just 250 square meters of land, finely partitioned, he raises about 600 breeding parent porcupines and animals for shipment.

According to Vietnamese media reports, a breeding pair sells for VND 3.5–4 million (about 21,000–24,000 yen), and meat animals hold steady at VND 320,000–380,000 per kg, averaging roughly VND 350,000 (about 2,100 yen). This gives monthly revenue of about VND 50 million (about 300,000 yen), and net annual profit after expenses reaches over VND 500 million. Tung says, "Compared with the people raising pigs around here, porcupines are far easier."

Why porcupines became "livestock that pays"

Behind the viability of porcupine farming are two things: the cost structure and the demand structure.

On the cost side, it matters greatly that this animal is disease-resistant and highly adaptable. Because it grows on damaged vegetables and fruit, sweet potatoes, and okara recovered from the market—without relying on vaccines or expensive compound feed—it is almost unaffected by the risk of surging pig-feed prices. Unlike pigs, whose prices are easily controlled by middlemen, it can be started with a small number of animals and run in spare space at home, which also lowers the barrier to entry.

On the demand side, porcupine meat has taken hold in urban upscale dining. Served grilled, steamed, or stir-fried at restaurants in Ho Chi Minh City and Dong Nai, it fetches high prices as "a rare and nourishing ingredient." Under Vietnamese law, the common farmed porcupine is classified as an "ordinary wild animal" that is not a rare species, but breeding facilities are required to obtain permission from the forest-protection authorities and to keep a rearing ledger, among other things. This institutional framework has supported regionalization that is not black-market trade.

The economics of specialty livestock in numbers

Placed alongside the market prices for pigs and chickens, the high unit price of this livestock becomes clear. Exchange is converted at about 0.006 yen per dong (about 60 yen per VND 10,000).

A unit price of around 2,000 yen per kg far exceeds the retail prices of ordinary pork and chicken in Vietnam. The idea of stacking up high added value on a small plot of land Ha Tinh Province's Korean melon cultivation, generating three crops a year and VND 200–300 million in profit on 500 square meters stands on the same philosophy of farm management that maximizes "gross margin per unit area."

The spread of specialty livestock, and the caveats experts place on it

Porcupines are not a one-off success but one corner of specialty livestock that is gaining depth across Vietnam. Lining up voices from the field and from research brings its positioning into view.

• Bamboo rat (dui) farming saw meat traded at VND 400,000–420,000 per kg in 2025, and in mountainous areas some households are turning out profits on the order of 200,000 yen a month. It is in the same "disease-resistant and low-cost" lineage as the porcupine.
• Some local governments are backing specialty livestock as a lever for the local economy, for example by granting households that raise porcupines, bamboo rats, or civets a subsidy of VND 2 million per pair.
• A conservation study of porcupine farming in Vietnam noted that while the number of facilities surged in Son La Province in 2005–2008, restaurants still sourced wild-caught animals in some cases. It is a caveat that even as regionalization advances, proof of "farm origin" becomes the crux of sourcing.

Because the conditions of high returns, low cost, and small scale all come together, it is also becoming a landing spot for farmers who have quit silkworm raising or herb cultivation to switch over.

Three things Japanese procurement staff should read into this

This case offers three implications for how Japanese buyers view Vietnam.

First, Vietnam's protein sources are becoming a layer more multilayered, beyond "commodity meat + seafood"—that is the fact. Outside the mass-production lines of pigs, chickens, shrimp, and white fish, high-unit-price specialty livestock is forming an independent market. If a Japanese sourcing plan grasps Vietnam only as a "cheap mass-production region," it will misread this change in price bands and the shift in the allocation of feed, land, and labor that it triggers.

Second, Management that maximizes gross margin per unit area is becoming the rural standard—that is the point. The figure of 3 million yen a year on 250 square meters shows that a high-added-value model that does not presuppose vast farmland works. It is necessary to factor in the possibility that the counterparts for building stable sourcing for Japan will be replaced by such small-scale, high-return operators.

Third, Sourcing wild-origin ingredients always carries institutional risk—that is the matter. Porcupine meat itself, in the context of import into Japan, faces high walls of quarantine and wildlife regulation and is not a realistic import item. That is precisely why its value lies in serving as study material for cultivating an eye that discerns a region's legality and traceability. The trend of Vietnam developing a national framework for animal welfare and traceability An animal-welfare roadmap starting with shrimp and pangasius connects to this and will before long extend to specialty livestock as well. A stance of screening for legal, traceable supply sources becomes the premise of sourcing for every item.

Basic information on the farming facility

Summary-what to check next

An animal with 12 yen a day in feed costs produces 3 million yen a year on 250 square meters. One Dong Nai farmer's reverse calculation is a microcosm showing that rural Vietnam has entered a stage of earning not just by "volume" but by "unit price." There are three things Japanese sourcing managers should track next: how far specialty livestock, including bamboo rats and civets, will become commercialized; how a high-return-per-area model will change the producer makeup of major export items; and when Vietnam's animal-welfare and traceability systems will reach specialty livestock. First, take stock once of whether, for the items your company handles, the supply source can prove it is "legal and traceable."

Sources

• Nuôi nhím, con vật cứ hay khịt mũi, một người Đồng Nai thành công, đút túi nửa tỷ/năm（Dân Việt）
• Nuôi nhốt và kinh doanh động vật hoang dã bắt buộc phải có giấy phép（Nông nghiệp và Môi trường）
• The conservation impact of commercial wildlife farming of porcupines in Vietnam（Biological Conservation）
• Raising bamboo rats brings in hundreds of millions of dong in income each year（Vietnam.vn）