Crespilho, André Maciel, Lorenzo Garrido Segabinazzi, Helton Nunes Pinto, Tiago Camargo, Cristiano Silva Ferreira, Igor Cavalheiro, Kleber da Cunha Peixoto Junior, and Ronaldo Aoki Cerri. “Can Cover Sheath Model Influence Semen Retention in AI-Gun Trials and Pregnancy Rates of Cows Inseminated at a Fixed-Time?”. Semina: Ciências Agrárias 41, no. 5 (June 17, 2020): 1601–1612. Accessed December 26, 2025. https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36831.