was postulated that this system existed as a single gene (Chapman & Whitten, 1968), the following experiments were conducted to determine the heritability of the male pheromonal system involved in pmsg-induced facilitation of ovulation. Female mice of the C57BL/6J and SWR/J strains were housed, one per cage, following weaning at 21 days of age. Lighting was kept on a 12 hr on/12 hr off schedule...

One hundred and fifty ewes with lifetime records of ovulation rate and lambing were divided into two groups on the basis of age, live weight and reproduction index (calculated from reproductive performance data). Both groups were synchronised in oestrus with progestagen sponges inserted for 14 days. At sponge removal one group received no PMSG while the other group received 400 i.u. PMSG. Eight...

We investigated the fertilization and developmental ability of superovulated eggs obtained from adult Wistar-Imamichi (WI) rats, by using pregnant mare serum gonadotropin (PMSG) and human chorionic gonadotropin (hCG) treatment. Female WI rats, 11-13 weeks of age, were divided into four groups by estrous stage (metestrus [ME], diestrus [DE], proestrus [PE], or estrus [E]). PMSG (150 IU/kg) and h...

ewes to superovulatory doses of PMSG. A subsequent report of a similar study of Welsh mountain ewes found no association between Hb type and response to PMSG (Trounson, Willadsen, Moor & Tucker, 1976). Egg-transfer experiments with Finnish Landrace (Finn) and Galway donors provided an op¬ portunity to extend the findings of Pant & Pandey (1975) and Trounson et al (1976). In addition to typing a...

Hardware protection and control action are two kinds of low voltage ride-through technical proposals widely used in a permanent magnet synchronous generator (PMSG). This paper proposes an innovative clustering concept for the equivalent modeling of a PMSG-based wind power plant (WPP), in which the impacts of both the chopper protection and the coordinated control of active and reactive powers a...

The objectives of the present study were to evaluate the induction of estrus and fertility in yak cows treated with Co-Synch regimens or progesterone (P(4)). In Experiment 1, postpartum suckled yaks were assigned to three treatments: (1) A (n=28), insertion of an intravaginal device containing P(4) (CIDR) on Day 0, PGF(2alpha) (i.m.) on Day 6 and PMSG (i.m.) at the time of CIDR removal on Day 7...

This study was conducted to evaluate fertili ty in 160 day-old gilts. In Experiment 1, 28 gilts in the following five groups were injected with (1) vehicle, (2) 500 /ag of a synthetic gonadotropin releasing hormone (GnRH) anal ogne [ D-Ala 6-des-Gly-NH2101 LH-RH-ethylamide (AY 25205), (3) a cbmbination of 400 IU of pregnant mares' serum gonadotropin and 200 IU of human chorionic gonadotropin (4...

This paper presents the expansion of power quality for variable speed Wind Power System (WPS) using Permanent Magnet Synchronous Generator (PMSG) and Trans Z-Source Inverter. The PMSG is having compact collection and dimensions, compare to Induction Generator. Induction Generator needs the grid power, then only start the power production. But without take up the grid power PMSG should produce t...

We have observed that levels of the antioxidant glutathione (GSH) and protein levels of the catalytic and modifier subunits of the rate-limiting enzyme in GSH synthesis, GCLc and GCLm, increase in immature rat ovaries after treatment with gonadotropin. The goals of the present studies were to delineate the time course and intraovarian localization of changes in GSH and GCL after PMSG and after ...

Wind energy, a kind of non-conventional energy source and environmental fresh energy, is widely studied nowadays. Directly driven wind turbine permanent magnet synchronous generator (D-PMSG) plays a vital role in the latest small-scale wind Power technology. This paper presents the modeling and simulation of a 12kW direct driven Permanent Magnet Synchronous Generator of Wind Power. This model c...