Quintas, HelderValentim, Ramiro2023-03-012023-03-012022Quintas, Helder; Valentim, Ramiro (2022). Ram infertility. In Quintas, Helder; Lacasta, Delia; Ferrer, Luis Miguel (Eds). Differential diagnosis in sheep. Zaragoza: Doctor Herriot SL. p. 137-145. ISBN 978-84-09-38757-1978-84-09-38757-1http://hdl.handle.net/10198/27342Ram’s fertility problems may cause serious management problems. Since is responsible for half the genetic information of a newborn lamb. However, infertility and subfertility rams have a major effect on herd fertility since one ram may get 30-40 ewes pregnant. Infertility is easier to identify than subfertility as sub-fertile rams, especially when mating in a large team of rams will get some ewes pregnant.engRamFertilitybook part