Alternativas para destinação de cerdas e cascos provenientes de abatedouro de suínos

Abstract

Pork production has grown in recent years in Brazil due to high domestic consumption and the expansion of exports. Both arising from the requirements established by the market, such as quality and food safety, genetic improvement and health evolution, and aspects such as the culture of the population for the consumption of this animal protein, which in turn influence this progress. Such growth promotes a reflection on the waste arising from this production, emphasizing the solids generated in swine slaughterhouses. This weighting is related to the environmental aspects involved, because, if the disposal of waste is inadequate, it can cause considerable environmental impacts. In this context, studies and evaluations are essential, with the purpose of obtaining the environmentally appropriate destination of swine waste, with the premise of valuing and applying them in other processes, without the need for disposal. In this way, the present work aims to present alternatives for the final destination of swine bristles and hooves through a Systematic Literature Review (SLR), with the intention of verifying the possibilities of destination and/or application of the residues, and to contribute with the dissemination of knowledge about the valuation of pig bristles and hooves. Applying the RSL methodology resulted in a portfolio of 22 articles, essentially aiming at the degradation and biodegradation of swine bristles and hooves. Therefore, significant opportunities were identified emphasizing the means for the valorization and use of residues, bristles and hull.