The aim of this survey was to evaluate the frequency of pregnant ewes slaughtered in Khorram Abadabattoir and estimation of their gestational age. Over a period of five months in fall and winter, a totalnumber of 3046 uterine tracts were collected. Pregnancy was detected in 56.50% of ewes, 52.36% and 4.13% of which carried singleton and twins, respectively. The highest frequency of pregnancy wa...

OBJECTIVE To evaluate the immunologic response of a killed tachyzoite vaccine against Neospora caninum and its effectiveness in preventing fetal loss associated with experimentally induced neosporosis in sheep. ANIMALS 30 Dorset ewes. PROCEDURE Ewes were randomly allocated to receive vaccination on days 1 and 60 of the study with a killed N caninum tachyzoite preparation in a commercially a...

congenital and acquired abnormalities of the reproductive tract of female sheep resulting in subfertility,infertility or sterility cannot easily be detected by routine clinical examination. morphopathologicalabnormalities of the reproductive tract of ewes were studied by examining a total of 739 genital tracts inabattoirs of fars province, iran. from these, the 648 non-pregnant genitalia were e...

In ovine pregnancy, as in human pregnancy, hypothalamus-pituitary-adrenal activity is chronically increased. These studies were designed to test the hypotheses that expression of serotonergic genes and responsiveness to serotonin are increased in pregnancy. We tested the stimulatory effect of an acute, intracerebroventricular injection of the serotonin reuptake inhibitor fluoxetine on plasma AC...

These studies test the hypothesis that pregnancy alters the feedback effects of cortisol on stimulated ACTH secretion. Ewes were sham-operated (Sham), or adrenalectomized (ADX) at approximately 108 days gestation and replaced with aldosterone (3 microg x kg(-1) x day(-1)) and with cortisol at either of two doses (ADX + 0.6 and ADX + 1 mg x kg(-1) x day(-1)); ewes were studied during pregnancy a...

These studies test the hypothesis that the increased adrenocorticotropic hormone (ACTH) and cortisol in pregnancy reflect a reset of regulated plasma cortisol concentrations. Ewes were sham operated (Sham) or adrenalectomized (ADX) at ∼108 days gestation. Adrenalectomized ewes were replaced with aldosterone (3 μg ⋅ kg-1 ⋅ day-1) and with cortisol at either of two doses (ADX + 0.6 and ADX + 1.0 ...

the aim of this survey was to evaluate the frequency of pregnant ewes slaughtered in khorram abadabattoir and estimation of their gestational age. over a period of five months in fall and winter, a totalnumber of 3046 uterine tracts were collected. pregnancy was detected in 56.50% of ewes, 52.36% and 4.13% of which carried singleton and twins, respectively. the highest frequency of pregnancy wa...

The aims of the present study were to diagnose toxoplasmosis in pregnant ewes and women serologically and molecularly, treat naturally infected ewes, and diagnose congenital toxoplasmosis. Blood samples were taken from 30 and 60 pregnant ewes and women, respectively, and used for diagnosis of toxoplasmosis through Latex agglutination test (LAT). Seropositive samples were confirmed by PCR for de...

BACKGROUND Elevated non-esterified fatty acids (NEFA) concentrations in non-pregnant animals have been reported to decrease pancreatic responsiveness. As ovine gestation advances, maternal insulin concentrations fall and NEFA concentrations increase. Experiments were designed to examine if the pregnancy-associated rise in NEFA concentration is associated with a reduced pancreatic sensitivity to...

Physiological status and litter size affect ewes' hematological parameters, which serve as health indicators. These parameters reflect changes in an animal's physiological condition. Therefore, this study examined the profiles of Awassi ewes with single twin pregnancies during pregnancy postpartum. A total 232 sexually mature healthy (123 109 pregnancies) between ages 3 4 years were included cu...