Sentence examples for poor fertility from inspiring English sources

The researchers assure this is no cause for alarm, though, as the sons probably just inherited their fathers' poor fertility that spurred the need for in vitro fertilization in the first place.

These alterations may be responsible for poor fertility seen in these men compared to the fertile men.

In captive animals (Chinchilla lanigera and C. brevicaudata), reproduction is characterized by poor fertility and limited by seasonal breeding patterns.

Yet, forests are usually relegated to sites of moderate to poor fertility, where tree growth is often limited by nutrient supply, in particular nitrogen6,7.

Greenhouse pot experiments were performed with Ipomoea aquatica (Kang Kong) to evaluate artificial soil produced from poor fertility subsoil, horticultural compost, and sewage sludge.

One in 20 men have poor fertility and in many cases this is thought to occur when highly reactive particles called free radicals which circulate in the body, cause damage to sperm cells.

The red and yellow tropical loams of the interior plateaus, on the other hand, are of moderate-to-poor fertility.

The use of ICSI was associated with lower odds of implantation (OR = 0.59; 95% CI: 0.31, 1.13), likely because couples using ICSI have poorer fertility, as reflected by prior failures of IVF without ICSI.

At 7 DPP, elevated HP has been associated with poorer fertility and avoiding the acute phase response during the transition period has been suggested as a possible route toward improving reproductive performance in high-yielding dairy cows [ 56].

Productive and reproductive efficiency in high yielding dairy cattle requires a disease-free transition period [ 25] and uterine pathology is a major contributory factor to poorer fertility outcomes [ 26, 27].

Our working hypothesis was that the markedly poorer fertility of outbred XY Sry- as compared with XO female mice is due to Y gene expression in the oocytes, and that this Y gene expression is reduced as a consequence of the proximal Yp deletion present in the much more fertile XYd females.