نتایج جستجو برای: parturition interval
تعداد نتایج: 202712 فیلتر نتایج به سال:
Darturition is believed to be initiated when adrenocorticotropic hormone (ACTH) from the fetal pituitary gland causes a release of cortisol from the fetal adrenal cortex (1). The fetal cortisol reduces placental progesterone production and increases placental estrogen production, resulting in release of prostaglandin F2, (PGF) from the uterus (1). Consequently, uterine activity increases, the c...
Introduction: Undoubtedly, following religious laws is unseperatable part of every Muslim’s ‎life. Medical personnel especially nurses are the first ones who can guide patients regarding ‎their illness. Also since one of the important issues in nursing process is to alleviate patients’ ‎needs and spiritual needs are important and most people in our country are Muslims. &...
The onset of ovarian function and occurrence of estms were monitored in two groups of Holstein cows over the first 90 days postpartum. Group 1 consisted of 36 animals housed in a free stall area and observed continuously for estrus with closed circuit television and a time lapse videorecorder. Group 2 consisted of 33 cows housed in tie stalls with estrus detected by the herdsmen. Blood samples ...
Multiparous Brahman cows were assigned by order of calving and sex of calf to groups to be fed to maintain body condition score (BCS) of 6 or greater (M; n = 10) or to lose BCS (L; n = 10). Blood samples were collected weekly for progesterone analysis and at 15, 30 and 45 d after parturition at 15-min intervals for 6 h for determination of immunological (ILH) and biological (BLH) luteinizing ho...
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