The aim of this study was to investigate the efficacy of equine chorionic gonadotropin (eCG) and cloprostenol (CLO) administration on oestrus synchronisation, uterine development as well as serum LH and FSH concentrations in mice. One hundred and five KM mice were assigned into eCG-1, eCG-2, eCG-3, CLO-1, CLO-2, CLO-3 and control groups (CG, n = 15). The eCG-1, eCG-2 and eCG-3 groups were intra...

The marsh deer is an endangered species from the marshlands of central South America. This study aimed to characterize certain aspects of the reproductive physiology of marsh deer hinds, including the duration and fecal progestins profile of the estrous cycle, pregnancy and post-partum periods, and evaluate the effect of cloprostenol administration on this species. The experimental group consis...

Prostaglandins F2alpha (PGF2α) or its analogues (e.g. cloprostenols and D cloprostenol) have been used to induce farrowing worldwide in pig farms, including in Thailand. However, the dose, route of administration and timing of injection of these hormones are still controversy. Therefore, the aim of this review is to provide information based on literature search and some experiments which are p...

This trial evaluates reproductive performance in a early-routine estrus synchronization program using two different PGF2? . Cows were administered D(+)cloprostenol sodium (n=88; Group A) or dinoprost (n=78; Group B) between 35-42d postpartum. Pedometers were used to detect estrus. Evaluation of secondary signs of estrus and evaluation of vaginal mucus quality was made prior to AI. When estrus w...

Ten field and laboratory experiments were conducted in which Merino ewes were treated with one or two 125pg injections of Cloprostenol, an analogue of prostaglandin F2a (PG). All treatments commenced in the luteal phase of the oestrous cycle. Sixty-six percent of ewes were detected in behavioural oestrus within 64 hr of completion of treatments although 95% of all treated ewes ovulated in appar...

Materials and methods: The 122 sows in this study were allocated to two treatment groups or served as controls. Treatments consisted of two 1-mL (87.5-μg) injections of cloprostenol administered at a 6-hour interval on gestation day 114, either vulvomucosally (VM) or intra-abdominally (AB) into the external abdominal oblique muscle. Controls received two 1-mL injections of sterile saline admini...

Jugular venous concentrations of oxytocin and progesterone changed in parallel during the oestrous cycle in the ewe, falling at luteal regression and rising with formation of the new corpus luteum. These fluctuations in the circulating concentration of oxytocin were not caused by changes in its metabolic clearance rate. On Days 6-9 of the cycle circulating oxytocin concentrations exhibited a di...

The objective of this study was to evaluate two protocols of estrous synchronization in non-lactating Toggenburg goats. Nineteen goats were allocated, according to body condition score and weight, into two groups (A and B) and evaluated utilizing two treatments (T1 and T2). Animals in the T1 and T2 groups received an intravaginal sponge (day 0) containing 60 mg medroxyprogesterone acetate for 6...