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The article offers information on the role played by melatonin in sheep breeding. As the eyes of sheep detect decreasing day length, the pineal gland produces melatonin. A study from the University of Zaragoza found that the use of melatonin in rams can increase sperm motility and scrotal circumference.

Examines the penetrating capacity of human spermatozoa cool preserved in electrolyte-free (EF) solution. Survival of human spermatozoa in a EF solution; Capability of the method to retain the motility, viability and function of sperms; Indication of sperm's normal penetrating capacity.

Investigates whether increased age alters the frequency and type of chromosomal anomalies in human spermatozoa by researchers in Brazil. Comparison on the frequency and types of chromosomal anomalies found in the haploid complements of sperm from donors; Performance of cytogenetic studies; Factors that contribute to the significantly greater frequency of cells with structural aberrations found in older men.

The article focuses on the study regarding the implication of several thawing temperatures and the duration of thawing on the fertility of boar sperm. It says that the study utilized 15 ejaculates from 13 boars, which were frozen using CryoGuard Freezing Extender in 0.5 milliliter (mL) straws. The results showed that the post-thaw motility and the number live sperm were affected by the thawing temperature and duration.

The author focuses on the highlights of farming in Great Britain as of August 2009. He relates the spermtest undergone by their Aberdeen Angus bull. Also noted is the plan to install hutches for seven-day-old calves in groups on an outdoor pad in an effort to enhance ventilation. Failure to harvest any whole-crop, crimped grain or second-cut silage was attributed to the wet weather.