Tertiary Follicular Growth Wave Dynamics after Oestrus Synchronization and Superovulation in Sheep and Goats
نویسندگان
چکیده
منابع مشابه
Synchronization of Oestrus in Cattle, Sheep and Goats Using a Prostaglandin Analogue
Prostaglandin F~(Y, (PGF2a) causes luteolysis in several species of animals including cattle and sheep. This has led to investigations with PGF2a as an agent for the control of oestrus and ovulation in domestic animals (Inskeep 1973) and to comparison of PGF2a and progestins as practical methods of synchronizing oestrus in cattle (Smith 1973). This paper reports preliminary studies of the use o...
متن کاملRegulation of Follicular Growth and Development in Sheep
This manuscript reviews the present knowledge related to folliculogenesis in sheep.Folliculogenesis starts with formation of primordial follicles before birth, present as a pool containing a certain number of follicles. By the attainment of puberty, a group of follicles from that pool starts to grow, a process known as primordial follicle activation or recruitment. The number of growing primord...
متن کاملSynchronization of oestrus in goats: dose effect of progestagen.
A trial was conducted to test the efficiency of different doses of intravaginal progestagen in the synchronization of different goat breeds, in the breeding season. Sixty Multiparous Boer and 60 Indigenous feral does were allocated to three treatment groups. The groups consisted of a control group (natural oestrus) (n=20/breed); 60mg MAP sponge groups inserted for 14 days plus 300IU PMSG at spo...
متن کاملFollicular dynamics in Serrana goats.
Twenty-two Serrana goats were studied through two successive estrous cycles in order to characterize their follicular dynamics during the breeding season. The ovaries of the goats were scanned daily by real-time ultrasonography and all follicles >or=3mm were measured and classified. The data were classified by the number of follicular waves per goat to test the hypothesis that temporal and morp...
متن کاملPattern and manipulation of follicle development in sheep and goats
Improving our understanding of the pattern of follicle development and its manipulation by exogenous hormones in sheep and goats will improve our ability to manipulate their fertility. Repeated ultrasonographic observations of the growth of individual follicles have shown that follicles develop in a wave-like pattern during oestrous cycles, with two or three follicular waves per cycle being mos...
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ژورنال
عنوان ژورنال: Acta Veterinaria Brno
سال: 2002
ISSN: 0001-7213,1801-7576
DOI: 10.2754/avb200271040481