Influencia de la inmunocastración en la línea paterna Landrance Por Pietrain sobre parámetros zootécnicos de lechones en la Granja Porcícola El Encanto.

Abstract

The El Encanto Pig Farm, located in the La Aguada de Ceferino hamlet in the municipality of Lebrija, Santander, Colombia, is characterized by a full-cycle system spanning 20 hectares. The farm has suitable facilities for each stage of production: 7 pre-fattening barns with a capacity for 40 piglets each, 34 rearing and fattening barns, and 100 gestation crates with 20 advanced farrowing crates. The feeding of the animals is managed by the company Finca, which provides the necessary feed to meet the nutritional needs of all physiological stages. The study was conducted over a period of 21 days, focusing on the evaluation of the zootechnical parameters of piglets born from two Maximus Solla Landrace by Pietrain pigs. One of these pigs received a single dose of immunocastration and retained its reproductive capacity for artificial insemination purposes. Ten sows were divided into two groups: 5 inseminated with Rambo and 5 with Hercules. Both groups of sows were administered the same medication and feeding protocol. The piglets were weighed at birth, at 7 days, at 15 days, and at weaning (21 days). To facilitate traceability both on the farm and in the research, the litters were tattooed. Significant problems of mortality and mummification were observed in some litters, with rates exceeding 35%.