A total number of 136 pregnant ewes with the same age and parity were used in the present study. The experimental ewes reared during Arabic months or lunar months, from the 1 Gomady to Zol-hega, 1432 AH. The available data for each animal were obtained from the records of Sheep Farm, Project of Experimental Farms. Lambing season started at months, Shawal to Zol-hega. After lambing, the ewes wer...

Pregnancy is characterized by increased plasma adrenocorticotropic hormone (ACTH) and cortisol. Studies suggest that progesterone acts as an antagonist at mineralocorticoid receptors. Therefore, we tested the hypothesis that chronic progesterone, produced by treatment of nonpregnant ewes or during pregnancy, will result in increased plasma ACTH relative to the plasma cortisol concentrations. We...

This study included 6 groups of pregnant ewes with a change-over design. In period 1 group 1, 2 and 3 had access to the water nipples 4, 5 bowls vice versa in 2. all six both types dispensers. The ewes’ intake was significantly higher when drinking only from (3.27 ± 0.29 l/ewe day) than (2.04 0.22 (F = 78.28, P < 0.001). wastage for 36% usage negligible bowls. When offered dispensers ewes' tend...

The thyroid structural changes in pregnant ewes and their fetuses were investigated. Out of 100 pairs of thyroid glands collected from ewes and their fetuses at the local municipal abattoir in Ahvaz city of Khuzestan province, multiple lesions were seen in 59% and 21% of the thyroid glands of ewes and fetuses, respectively. Histologically, ninety nine lesions in the ewes and twenty two lesions...

The production of luteal oxytocin in ewes, resulting from the intrajugular injection of 200 micrograms of PGF2 alpha, could be determined by the increase in intramammary pressure. This simple indirect method of measuring the activity of the corpus luteum enabled easy detection of renewed post-partum ovulation or the onset of pregnancy. The response was monitored every two days between Days 0 an...

This study investigated the correlation between the body surface temperature (BST) and core body temperature of ewes and changes in BST during the prepartum stage in pregnant ewes. Four non-pregnant adult ewes were used in the first experiment. The BST of the upper neck, vaginal temperature (VT), and ambient temperature (AT) were measured every 10 min for seven days and analyzed for correlation...

The interval from onset of estrus to preovulatory luteinizing hormone (LH) release, conception and fertilization rates, and number of accessory spermatozoa per ovum at 48 hr postmating in untreated cyclic ewes and fn progestogen-pregnant mare serum gonadotropin (PMSG) treated, anestrous ewes were compared in efforts to identify sources of lowered fertility for matings induced in anestrous ewes ...

Cathepsins (CTS) are peptidases that have biological roles in degrading extracellular matrix, catabolism of intracellular proteins, and processing of prohormones. Expression of CTSB, CTSD, CTSH, CTSK, CTSL, CTSS, and CTSZ genes was detected in the endometria of cyclic and early pregnant ewes with distinct temporal and spatial expression patterns. In the d 18 and 20 conceptus, expression of CTSB...

The effects of 1) a rapid intravenous injection of insulin (4.4 IU), 2) a continuous intravenous infusion of insulin (.14 IU/min), or 3) a rapid intravenous injection of glucose (.24 g/kg body weight) into nonpregnant ewes and 4) a continuous intravenous infusion of glucose (1.2 mg/kg body weight/rain) into pregnant ewes on plasma amino acid metabolism and a-amino acid nitrogen (~-NH 2 -N) upta...

&#x0D; Physiological status and litter size can indeed have a significant impact on ewes' ‎hematological parameters, which are essential indicators of their health. Therefore, this study ‎examined the hematological profiles ewes during pregnancy with single twins in ‎Awassi ewes. The present involved 232 good health at sexual maturity. ‎Among them, 123 had pregnancies, while 109 twin pregnancie...