Lambs gain about 70 % of their birth weight in the last 6 weeks pregnancy. In this period, many physiological events occur ewe metabolism. The increase number fetuses also affects these events. aim study was to determine effect single and twin pregnancy on serum cortisol, glucose, triglyceride, HDL-cholesterol, total protein, cholesterol, calcium phosphorus levels at postpartum days. This condu...

Abstract Aimed with this study to evaluate vertical transmission of Neospora caninum in naturally infected sheep and monitor the kinetics antibodies against protozoon their lambs. Therefore, 48 pregnant ewes, from five herds, were divided into two groups: G1 - positive for anti-N. antibodies, 19 animals; G2 seronegative, 29 animals. Blood samples taken ewes lambs, immediately after birth, befor...

Ewe deaths affect the productivity and profitability in sheep farming systems have potential animal welfare market perception implications. Internationally, there is scant data on timing causes of ewe extensive grazing systems. There no published literature incidence risk factors associated with casting (ewe late gestation accidentally immobilised, often dorsal recumbency). This study, undertak...

The present study was conducted to investigate the attributes of ram sexual behaviour under different social conditions. Six intact rams and eight overiectomized ewes were used in this experiment. Ewes were artificially brought into oestrus. All mating traits were recorded every 10 sec during a 1 h mating session under five social conditions viz., ram exposed to single oestrus ewe, ram exposed ...

Introduction: Gonadotropin inhibitory hormone (GnIH) has been known as a key inhibitor of the secretion of gonadotropin releasing hormone (GnRH). Ewe has estrous cycles comprising of follicular and luteal phases. Follicular phase is in turn divided into proestrous and estrous phases. Blood level of LH increases in follicular and decreases in luteal phases. The aim of the present study was to...

Wu, Sing-Yung, Daniel H. Polk, Wen-Sheng Huang, and Delbert A. Fisher. Fetal-to-maternal transfer of 3,38,5triiodothyronine sulfate and its metabolite in sheep. Am. J. Physiol. 277 (Endocrinol. Metab. 40): E915–E919, 1999.— Earlier studies have shown that sulfoconjugation is a major pathway of thyroid hormone metabolism in fetal mammals. To assess the placental transfer of sulfoconjugates in th...

Wu, Sing-Yung, Daniel H. Polk, Wen-Sheng Huang, and Delbert A. Fisher. Fetal-to-maternal transfer of 3,38,5triiodothyronine sulfate and its metabolite in sheep. Am. J. Physiol. 277 (Endocrinol. Metab. 40): E915–E919, 1999.— Earlier studies have shown that sulfoconjugation is a major pathway of thyroid hormone metabolism in fetal mammals. To assess the placental transfer of sulfoconjugates in th...

BACKGROUND In mammals, the ovarian follicular reserve is highly variable between individuals and impacts strongly on ovarian function and fertility. Nowadays, the best endocrine marker of this reserve in human, mouse and cattle is the anti-Müllerian hormone (AMH). The objectives of this work were to determine whether AMH could be detected in the plasma of prepubertal ewe lambs and to assess its...