Jacqueline Hyland

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The records of 1630 mare years from 6 Thoroughbred stud farms in south eastern Australia were analysed for the years 1981 to 1986. Overall pregnancy and foaling rates were 83.9% and 69.3%, respectively. When calculated per served oestrous cycle, pregnancy and foaling rates were 54.7% and 43.1%, respectively. Pregnancy and foaling rates were higher (P <(More)
OBJECTIVE This study assessed whether a simple, readily implemented four-symptom somatic screen would be able to effectively identify current posttraumatic stress symptoms in victimized populations. METHODS The sample consisted of 622 Somali community-dwelling refugees who fled widespread violence and trauma occurring in East Africa during 1990-1992. Data(More)
For Day-14 sheep embryos, mean (+/- s.e.m., n = 7) PGE release was 20.2 +/- 5.0, 13.0 +/- 1.9 and 6.7 +/- 1.9 ng . mg tissue-1 . h-1 after 0.5, 4.5 and 8.5 h of culture respectively, while mean PGF release rates (+/- s.e.m.) for the same periods were 98.5 +/- 24.4, 49.3 +/- 16.3 and 16.5 +/- 5.4 ng . mg tissue-1 . h-1, respectively. Total quantities of PGE(More)
In Exp. 1, 30 Standardbred mares in deep seasonal anoestrus were divided into 3 equal groups and treated with 0, 50 (G50) or 100 (G100) ng GnRH kg-1h-1 for 28 days via osmotic minipumps. Ovulation occurred in 0/10, 3/10 and 7/10 mares respectively (P less than 0.05). Plasma GnRH profiles (Days -6, 0, 2, 6, 12, 20, 28 and 34 relative to pump insertion) were(More)
Seven Hereford cows with single calves were bled by jugular venepuncture, daily from parturition until 63-79 days post partum; 6 of the cows were also bled through jugular cannulae every 15 min for 8 h every 10 days. The average post-partum interval to first oestrus was 59.8 +/- 3.7 days for 5 of the cows. In cows returning to oestrus, plasma concentrations(More)
Foetal death was induced in 10 Standardbred mares at day 45 of gestation by injecting 20 to 45 ml of hypertonic (24% W/V) saline into the conceptus at surgery. Ten mares underwent sham treatment and acted as controls. Blood and urine samples were collected every other day between days 30 and 45 post ovulation and at 0, 3 and 6 h relative to the infusion of(More)
Concentrations of prostaglandins E and F (PGE and PGF) were measured in the embryo or fetus, extra embryonic or fetal membranes (membranes), intercaruncular and caruncular endometrium and plasma collected from uterine and ovarian arterial and venous vessels from separate groups of ewes laparotomized at 5 day intervals from day 10 to day 55 of pregnancy. Our(More)