Prof. Dr. Caio Abércio Silva

IntroductionPhytases of bacterial origin are the exogenous enzymes most widely used in the diets of monogastric animals, acting on the hydrolysis of phytate (myo-inositol 1,2,3,4,5,6-hexakis [dihydrogen] phosphate) to release the phosphate from this complex [1,2]. Phytases are commonly developed by means of genetic engineering [3], such as phytase from Escherichia coli expressed in Trichoderma ree ...

INTRODUCTIONResearch to determine the nutritional needs of most micronutrients for pigs was done mainly before the decade of 1990 and focused on avoiding nutritional deficiencies (Gaudré and Quiniou, 2009).Nutritional reference tables represent the theoretical basis for pig feed formulations indicating minimum requirement levels of supplementation (NRC, 2012) or values for best cost to bene ...

IntroductionHospital pens, or infirmary pens, are often used to facilitate the treatment of sick animals and separate them from those that are healthy (Fraser et al., 2013). In these pens, pigs are able to recover without competing with healthy animals for water, food, or rest areas (Pineiro et al., 2014).In Denmark, there is a law that specifies how a hospital pen should be designed, which addres ...

Introduction Currently in Brazil there are no standardized housing systems for weaned pigs, and therefore, a big range of different facilities are observed in pig farms. Although some studies have evaluated individual risk factors related to health status and growth performance (MORES et al., 1998; DALLA COSTA et al., 2000), studies regarding the evaluation of risk factors in housing conditions an ...