Estimación de la grasa dorsal y la condición corporal en cerdas utilizando medidas e índices morfométricos

Abstract

The objective of the study was to build a model to estimate body condition by dorsal fat thickness and zoomometric measurements; Thus, 133 Yorkshire sows aged 6-12, from 13-18 and older than 18 months were evaluated, evaluating different zoomometric measurements such as: raised to the cross (AC), raised to the rump (AEG), width of the posterior rump (AIIS), body length (LEI), sternal back elevation (ADE), thoracic perimeter (PRT), anterior reed perimeter (PCA) and bicostal perimeter (PBC); At the same time, the thickness of dorsal fat located at the level of the last rib was obtained through ultrasound (linear probe at 6.5 Mhz) at 4.6 and 8 cm from the midline both to the right side and to the left side. All these data were subjected to a normality test that allowed to know that it was a parametric analysis, followed by a Pearson correlation study and finally a multiple regression analysis that yielded several equation models to obtain the value of dorsal fat thickness and by means of this value estimate body condition; Selecting the model that best fits the parameters studied obtained within it the variables AC, PRT and number of births.