Crossbreeding for swine production in Puerto Rico

How to Cite

González Chapel, A., & Cabrera, J. I. (1949). Crossbreeding for swine production in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 33(4), 119–155.


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.


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