Thousands of long noncoding RNAs (lncRNAs) have been identified in mouse, rat, and human testes, some of which play important roles in testis development and spermatogenesis. However, systematic analysis of lncRNAs expressed in postnatal pig testes has not been reported. Thus, in this study, we present the expression and characterization of lncRNAs in immature (30-day-old [D30]) and mature (180-day-old [D180]) pig testes. A total of 90 440 168 (85.75%) and 97 001 700 (95.35%) 150-base-pair paired-end clean reads were generated in D30 and D180 c...