The complex anatomy of the ovine cervix limits the success of trans-cervical artificial
insemination in sheep. However, there is a degree of natural relaxation of cervix at oestrus …

Natural lambing in sheep in Ethiopia occurs throughout the year in a scattered manner
negatively affecting survival and growth rates of the lambs born during the unfavorable …

To compare the effects of PGF2α (dinoprost tromethamine) and d-cloprostenol in a two-dose
protocol for estrus synchronization in hair sheep during breeding season in Yucatán …

Nitric oxide, a gaseous molecule, is produced during the conversion of arginine to citrulline
by the action of NOS isoforms (eNOS, iNOS or nNOS). Role of NO in regulation of …

The corpus luteum (CL) is a transient endocrine gland that produces progesterone and
maintains pregnancy in all mammals. In the absence of a pregnancy, the CL regresses …

It is well-documented that nitric oxide (NO) is an important regulator of oocyte maturation in
mammals. Conversely, the function of NO during oocyte maturation has received little …

Temporal relationships among circulating concentrations of nitric oxide metabolites (NOM),
progesterone (P4), and luteinizing hormone (LH) within the hours of a PGFM pulse were …

前列腺素F 2α (prostaglandin F 2α, PGF 2α) 是一种黄体溶解因子, 广泛用于母猪的同期发情和
分娩启动. 近年来还陆续发现PGF 2α 的新功能, 内源性PGF 2α 可作为哺乳动物的妊娠识别信号 …

The present study aimed at evaluating the effect of single over-dose of PGF2α on
postpartum anestrusdue to retained corpus luteum in dairy cows. A total of 40 dairy cows, 3 …

There are a variety of hormonal protocols and products on the market, but it is still unclear
how they will work on specific field conditions. The efficacy of using different forms of …