Peru Turns to Dairy Genetics as Heat Threatens Milk Output

Peru’s dairy sector is focusing on dairy genetics in response to the effects of thermal stress on milk production. The reported concern is that animals exposed to temperatures above their usual range may produce less milk.

During summer, thermal stress can lower production by between 10% and 20%. When temperatures rise beyond normal levels, the reduction may reach 25% of milk output per cow.

The figures describe a decline in production linked to heat conditions rather than a change in the number of animals. The potential reduction is expressed on a per-cow basis, with the highest reported figure applying when temperatures exceed customary levels.

Producers are seeking animals that are more efficient and better adapted to the climate. Dairy genetics is therefore being considered in connection with the selection of cattle able to maintain production under the conditions described.

The source does not provide details on specific breeds, breeding programmes, investment amounts or a timetable for the sector’s genetic efforts. It states that the search for more efficient, climate-adapted animals is taking place against the risk of summer losses of 10% to 20% and a possible decline of up to 25% per cow when temperatures are higher than usual.