Background: There are some methods for morphology staining of sperm. Although many different and also new methods are used in semen analysis, light microscopy is still used for routine morphological evaluation. The most used of the methods is Papanicolaou staining. This method is routinely used in Andrology laboratory for Human sperm morphology staining. In some domestic animals such as bull, R...

Rift Valley fever (RVF) is an arthropod-borne viral disease of importance in livestock and humans. Epidemics occur periodically in domestic ruminants. People in contact with infected livestock may develop disease that varies from mild flu-like symptoms to fatal viraemia. Livestock vaccination may assist in disease control. Rift Valley fever virus (RVFV) Clone 13 is a relatively new vaccine agai...

OBJECTIVE The effects of dietary fish oil on semen quality and sperm fatty acid profiles during consumption of n-3 fatty acids as well as the persistency of fatty acids in ram's sperm after removing dietary oil from the diet were investigated. MATERIALS AND METHODS In this experimental study, we randomly assigned 9 Zandi rams to two groups (isoenergetic and isonitrogenous diets): control (CTR...

The aim of this study was to see how chilled sperm quality is affected by ejaculation frequency and its correlation seminal plasma composition in INRA 180 rams. Five rams were collected at high (HFE) low frequencies (LFE). For the frequency, three times on same day every days for 18 days. In collection, consecutive ejaculates once a week four weeks. Ejaculates 20-minute intervals either HFE or ...

Ram semen traits play a significant role in conception outcomes, which turn may influence reproductive efficiency and the overall productivity profitability of sheep enterprises. Since hundreds ewes be inseminated from single ejaculate, it is important to evaluate quality prior use breeding programs. Given that have been found heritable, genetic variation likely contributes variability observed...

Timed artificial insemination (TAI) is a very important tool for reproductive programs in small ruminants, providing synchronized inseminations and more efficient use of superior males. The objectives this study were to investigate the viability different breeding protocols under sub-optimal conditions out season, compare outcome TAI sheep with two semen extenders. Ewes (n=575) subjected estrou...

Background: Adipose tissue is not only an energy storage tissue but also an important endocrine organ that secretes protein hormones. Among them, the production and secretion of adiponectin is inversely correlated to the severity of obesity. In adipose tissue, adiponectin production is transcriptionally regulated by peroxisome proliferator-activated receptor-γ (PPAR-γ). Obesity is a major healt...