Physiology of male reproduction.

اثرات میدان‌های مغناطیسی ثابت بر ترشح هورمون‌های تستوسترون، LH و FSH در موش صحرایی نر

  Effects of Constant Static Magnetic Fields Exposure on Testosterone, FSH and LH Secretion in Male Rat     A. Ahangarpour [1] , H. Fathi Moghaddam [2] , M.J. Tahmasebi Biragani [3] , H. Shahbazian [4] , M. Badvi [5]     Received: 05/12/07 Sent for Revision: 23/04/08 Received Revised Manuscript: 31/05/08 Accepted: 05/07/08     Background and Objectives: Several investigators have reported that ...

Effect of Dietary Melatonin and L-Tryptophan on Growth Performance and Immune Responses ofBroiler Chicken under Experimental Aflatoxicosis

The aim of the present work was to determine whether the administration of melatonin or L­-tryptophan (a precursor of melatonin) affects the immune responses and performance of broilers during induced exposure to aflatoxins in feed. The study was conducted from 0-6 weeks comprising six dietary treatments in triplicate with10 chickens in each replicate. The diets were formulated to supply 23% cr...

Physiology of Growth and Reproduction in Livestock

1. Growth 1.1 Early Embryonic Growth 1.2 Embryonic Origin of Various Organ Systems 1.3 Description of Tissue Types 1.4 Growth in Meat Producing Animals 1.5 Regulation of Growth 1.6. Adipose Tissue Growth 1.7 Factors that Reduce Growth 2. Reproductive Physiology 2.1 Male Reproductive System 2.2 Hormonal control of Spermatogenesis and Male Reproduction 2.3 Female Reproduction. 2.4 Mating and Fert...

Estrogen receptor gene 1 expression in caprine and its effect on fertility

The present study was undertaken to analyze the expression pattern of estrogen receptor 1 gene (ESR1) in Barbari bucks (fertile and non-fertile) identified on the basis of seminal quality traits and fertility trials. RNA was extracted from the spleen by Trizol method. The expression pattern of ESR1 gene was analyzed using real time polymerase chain reaction (RT-PCR). The expression pattern of E...

Spermatozoa: A Historical Perspective

The 100,000th scientific article on the subject of spermatozoa was recently published. Many studies have evaluated the characteristics of this important cell leading to great discoveries. Since its first observation and description in 1677, many important characteristics have been described regarding this highly fascinating gamete. In this review, our objective has been to provide a historical ...

Can Male Fertility Be Improved Prior to Assisted Reproduction through The Control of Uncommonly Considered Factors?