Economic indicators in the pig production depend greatly on the results in the piglet production. One of the factors which have impact on the piglet production expenses is the period of the use of brood sows. Determining the optimal period of the sow usage is made through the assessment of the optimal number of the achieved farrows. https://www.spidertattooz.com/Alpha-Industries-X-Detroit-Tigers-Green-59FIFTY-Fitted-Hat/