Pregnancy, parturition, and lactation in hypophyseal stalk-transected beef heifers
نویسندگان
چکیده
منابع مشابه
Pregnancy, parturition, and lactation in hypophyseal stalk-transected beef heifers.
Progesterone secretion is crucial for maintaining pregnancy to parturition in mammalian species, and in cattle the corpus luteum is the primary source of this hormone. This study determined the roles of prolactin (PRL), growth hormone (GH) and luteinizing hormone (LH) in the luteotropic process in beef heifers hypophyseal stalk-transected (HST, n=7) or sham operated (sham operated controls, SOC...
متن کاملRole of the Central Nervous System in the Regulation of Pregnancy, Parturition and Lactation in Beef Heifers
Progesterone secretion is crucial for maintaining pregnancy to parturition in mammalian species, and in cattle the corpus luteum is the primary source of this hormone. This study determined the roles of prolactin (PRL), growth hormone (GH) and luteinizing hormone (LH) in the luteotropic process in beef heifers hypophyseal stalk-transected (HST, n = 7) or sham operated on (SOC, n = 9) during mid...
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Growth hormone (GH) is a metabolic hormone that plays an important role in long-bone growth and muscle accretion in mammals. The anterior pituitary gland at the base of the brain is the primary site of GH production and release into the general circulation. Neurons in the arcuate nucleus of the hypothalamus in the lower part of the brain secrete GH-releasing hormone ([GHRH] or factor [GRF]) and...
متن کاملHyperlipidaemia during normal pregnancy, parturition and lactation.
Excessive accumulation of one or more of the major lipids in plasma can produce a marked increase in the risk of coronary heart diseases and other vascular complications. During and after pregnancy, changes in the levels of total cholesterol, triglyceride, low density lipoprotein-cholesterol, and high density lipoprotein-cholesterol have been described, but the amount of change varies from stud...
متن کاملIdentification of Beef Heifers with Superior Uterine Capacity for Pregnancy.
Infertility and subfertility represent major problems in domestic animals and humans, and the majority of embryonic loss occurs during the first month of gestation that involves pregnancy recognition and conceptus implantation. The critical genes and physiological pathways in the endometrium that mediate pregnancy establishment and success are not well understood. In study one, predominantly An...
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ژورنال
عنوان ژورنال: Journal of Endocrinology
سال: 1999
ISSN: 0022-0795,1479-6805
DOI: 10.1677/joe.0.1630463