Sentence examples for causes of sperm from inspiring English sources

Our investigations on the seven sperm whales (labeled from no. 1 to no. 7; no. 5, 6 and 7 stranded alive) were performed to evaluate the current hypotheses on the causes of sperm whale mass strandings considering also the impact of human activities in the area.

To identify the causes of sperm dysfunction, we first conducted the acridine orange (AO) staining, also called spermatozoa chromatin structure assay (SCSA) (Venkatesh and Dada, 2010), which is based on the metachromatic shift from green (native chromatin) to red (denatured chromatin).

You start with what seems to me to be the most exceptional example for the cause of sperm competition.

This study examined the DFI and sperm parameters in patients with different grade varicocele who did not have any identifiable systemic or andrological cause of sperm or DNA abnormalities before and 6 months after surgery.

For example, the primary cause of sperm DNA damage is likely to be oxidative stress (Aitken and De Iuliis 2010; Aitken et al. 2009), which can also damage the sperm membrane (Sharma et al. 2004).

One of the major causes of defective sperm function and sperm motility is oxidative stress.

It also causes formation of sperm granulomas, reduction of sperm fertilizing ability, and destruction of clear cells in the epididymis.

Examination of testes from the same male gives insight into the causes of lowered sperm counts in hybrid males.

Although further tools are sometimes used to evaluate known causes of reduced sperm quality (such as endocrine disorders or sex chromosome abnormalities), assisted reproductive techniques often are used to achieve fertilization without identifying the cause of the defect.

The hormone may also be necessary to cause maturation of sperm and to heighten the sex drive of the male.

Several reports are there that mammalian reproductive fluids contain some factors, which cause quiescence of sperm.