The usefulness of combining traditional sperm assessments with in vitro heterospermic insemination to identify bulls of low fertility as estimated in vivo |
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| Authors: | Puglisi Roberto Pozzi Anna Foglio Luciano Spanò Marcello Eleuteri Patrizia Grollino Maria G Bongioni Graziella Galli Andrea |
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| Institution: | Istituto Sperimentale Italiano "Lazzaro Spallanzani", Rivolta d'Adda, CR, Italy. roberto.puglisi@istitutospallanzani.it |
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| Abstract: | To date, no single in vitro assessment can estimate bull fertility. This research was aimed at evaluating the ability of a series of laboratory assessments to assign 50 Holstein Friesian bulls grouped as low (ER-NRR<-1.5), medium (-0.5
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