Bull and Bull v Hall and Preddy

Bull Fertility and Its Relation with Density Gradient Selected Sperm

Background sperm selection is generally used to describe methods for separation of spermatozoa for in-vitro-assisted reproduction. Few studies reported relation in vivo fertility and semen parameters after selection of fertile spermatozoa; hence, our research attempt to assess different semen parameters after post-thaw (PT) or after selecting sperm sample (SSp), using density gradient separatio...

Bull Management and Nutrition

Red Bull and Mania

Background: Energy drinks are promoted for their stimulant effects including increased attention, performance and endurance. However, recent reports have raised concerns about their use in children and youth. Case presentation: In this case report I describe a case of a young man with no previous psychiatric history who was involuntarily hospitalized for severe manic symptoms following the heav...

Sperm Characteristics in Cryopreserved Buffalo Bull Semen and Field Fertility

Semen quality and its relationship to fertility are major concern in animal production. The aim of this study was to assess the relationship between frozen thawed sperm characteristics and fertility following in vivo fertility through Artificial Insemination(AI). Semen samples were collected from four buffalo bulls. Semen volume and sperm concentration appeared to be significantly different (P0...

fereydūn’s bull-headed mace and its origin

this paper wants to investigate why fereydūn’s mace was bull-headed. since such weapon has a prominent role in our epics and it has been used by most of our heroes, it seems important to find its origin out.  to achieve this goal, there is a brief explanation about mace and all kinds of it in the texts of different periods in iranian and some other indo-european cultures. then some mythological...