@article{González Chapel_Cabrera_1949, title={Crossbreeding for swine production in Puerto Rico}, volume={33}, url={https://revistas.upr.edu/index.php/jaupr/article/view/12837}, DOI={10.46429/jaupr.v33i4.12837}, abstractNote={The comparative performances of the Duroc Jersey and Native breeds and the Duroc x Native, Landrace Large Black x Duroc, Landrace Large Black x Native, Tamworth x Duroc and Tamworth x Native crosses were studied for several pre-weaning and post-weaning characteristics of swine. In the pre-weaning characteristics a total of 112 litters were considered; for the post-weaning characteristics, 143 gilts, 74 boars and 69 barrows were used in individual feeding trials.}, number={4}, journal={The Journal of Agriculture of the University of Puerto Rico}, author={González Chapel, A. and Cabrera, J. I.}, year={1949}, month={Oct.}, pages={119–155} }