Catalase

Introduction: Bacteria create an enormous domain of prokaryote microorganisms that are diverse and abundant in most habitats on Earth. In fact, bacterial cells drastically outnumber somatic cells just on the external part of the human body compared to somatic cells within the whole body of a single individual. Bacteria are found just about anywhere on earth and are usually alongside other microorganisms including: mold spores or yeast cells, creating some difficulty when trying to distinguish…

4.1 Introduction: Stress is one of the most prevalent and life-threatening forms of mental illness affecting more than one fifth of the world’s population. It is always related to alterations of signaling pathways mainly the hypothalamic-pituitary-adrenal axis (Mikhai et al, 2014). Rat models are an obligatory tool to study the etiology and progression of behavioural and biochemical changes induced by oxidative stress. Restraint stress produces an imbalance between oxidants and antioxidants…

2.1. Artificial Insemination (AI) : Development of techniques for successful. .freezing of spermatozoa has progressively evolved over the. . Past 60 years (Kucuk et al., 2014). At the starting of 20th century Ivanov started studying on artificial insemination (AI) of sheep’s, where Ivanov’s .studies on extenders and reproduction resulted in the development and the practical application of AI in farm animals, reviewed by (Bohlooli et al., 2012). AI provides. .many advantages to farmers and…