What exactly is leased when the montanera is leased
Leasing the montanera is not leasing the estate: it is ceding the use of the acorns and pasture during the season, which usually runs from October-November to February-March. The owner keeps the other uses and, in most cases, their own livestock farming for the rest of the year. The Iberian pig farmer provides the animals and takes the product: pigs conforming to the Iberian quality standard, which requires a minimum number of days in montanera and a specific weight gain from acorns and pasture.
Ways of agreeing the price
There are three usual formulas, sometimes combined:
- Per pig: a price for each animal that enters the estate. It is the most widespread because it shares the risk: if the crop is weak and fewer livestock enter, less is charged.
- Per closed season: a fixed price for the whole montanera, adjusted to the estimated carrying capacity. It gives certainty to the owner and shifts the crop risk to the farmer.
- Sharecropping or participation: the dehesa owner provides the resource and collects a proportion of the final result. Less frequent, it requires a lot of trust and control.
The price per pig is negotiated each year and is very sensitive to two variables: the amount of acorn the season has given and the price of Iberian pork and ham at that moment. In years of scarce crop the montanera gets dearer because everyone seeks it; in years of abundant acorn and cheap pork, it goes down. That is why no figure lasts two seasons: you have to check each year with farmers and cooperatives in the area.
What raises or lowers the price of your montanera
- Carrying capacity: the kilos of acorn per hectare your trees can give, which set how many pigs fit under the quality standard. A dehesa with dense, fully productive oak woodland admits more pigs per hectare than a thinned one.
- Grass: pasture is the necessary complement; a year without grass forces supplementation and makes the season dearer.
- Water: enough, well-distributed drinking points; a reliable water point in summer and autumn is decisive, as explained in the guide to water and wells.
- Fences and handling pens: a properly fenced estate with a loading chute saves the farmer escapes, mix-ups and hours.
- Health location: distance to other pig farms and wildlife corridors. Biosecurity has become a pricing criterion because of African swine fever.
Clauses that cannot be missing from the contract
The montanera lease contract should set out in writing: dates of entry and exit of the animals; maximum agreed carrying capacity and who controls it; price and form of payment (on entry, mid-season, on exit); who is liable for damage to oaks, fences and installations; the obligation to remove the animals and their leftovers at the end; insurance and liability; and what happens if the season is declared ruinous because of drought or if a health alert forces immobilisation. A serious contract also regulates the owner's presence: right of visit and of checking the carrying capacity.
Health and administrative requirements
The dehesa that hosts pigs in montanera must be listed as a farm in the livestock register (REGA) of the Junta de Extremadura, and animal movements are documented with origin and destination guides. The farmer provides their census and health status; the owner must keep the estate up to date. If the estate also collects CAP, the presence of pigs in the season goes into the logbook and can affect the stocking rate declared under the eco-schemes.
Alternative: running the montanera yourself
The other route is to buy feeder pigs, put them in the dehesa and sell them fattened at the end of the season. The margin per animal can be much greater than the lease income, but the owner assumes the pig price, losses, handling and health. The practical rule in Extremaduran farming is clear: whoever has no livestock structure leases; whoever has it can consider running the montanera themselves in years of good crop and cheap feeder pigs.
How the montanera affects the rest of the estate
A well-managed season barely leaves a mark: the pigs make use of what the oak woodland gives and the grass returns with the spring rains. An overstocked season, by contrast, breaks the soil, damages roots and bark, and can cost years of acorn production. That is why carrying capacity is not a formality: it is the dehesa's insurance. If the farmer pushes to put in more animals than agreed, the contract must give you tools to stop it, from penalties per excess animal to termination. The health of the trees is also the basis of the rest of the income: without healthy oaks there is no acorn, no neighbouring cork in mixed areas, and no grassland eco-schemes.
How to find a farmer and set the price each year
The montanera market works on trust: Iberian farmers in the area, cooperatives, feeder-pig intermediaries and the designations of origin themselves, such as Dehesa de Extremadura, are the contact routes. Before signing, it is advisable to talk to two or three interested parties and to the district agricultural office to learn about the crop and the prices being closed in the district. And remember the estate's context: the montanera is one of the dehesa's income lines, alongside cork, livestock and the CAP, as detailed in the guide to what a dehesa is and the one on how the montanera works.