Nutrition has a significant effect on reproduction and lactation in Ruminant. Supply of require nutrient of dairy cows and ewes in early lactation is the main challenges that will be considered, since in most cases the animals facing negative energy balance after calving and the beginning of the period of lactation. Negative energy balance may sometimes result in reduced livestock production an...

Although expression of the ErbB4 receptor tyrosine kinase in breast cancer is generally regarded as a marker for favorable patient prognosis, controversial exceptions have been reported. Alternative splicing of ErbB4 pre-mRNAs results in the expression of distinct receptor isoforms with differential susceptibility to enzymatic cleavage and different downstream signaling protein recruitment pote...

Effects of twinning on lactation and days open in Holsteins were studied from calving records compiled by member surveys of Eastern Artificial Insemination Cooperative. Records of cows with 305-day mature-equivalent records from the Northeast Dairy Records Processing Laboratory were grouped according to whether the twin calving was associated with dystocia. Records of each cow that had a twin c...

The multidrug resistance efflux transporter ATP-binding cassette subfamily G member 2 (ABCG2) is not only overexpressed in certain drug-resistant cancers but is also highly expressed in the mammary gland during lactation, carrying xenobiotics and nutrients into milk. We sought to investigate the molecular mechanisms involved in the upregulation of ABCG2 during lactation. Expression profiling of...

ovarian follicle response and corpus luteum formation following induction of ovulation using gonadotropin-releasing hormone (gnrh) analogues and luteinizing hormone (lh) in bactrian camel were characterized. bactrian camels with a mature follicle (13-19.6 mm) received: 1) natural porcine lh (25 mg, iv, n = 4), 2) buserelin (20 μg, iv, n = 4) and 3) alarelin (25 μg, im, n = 4). daily ultrasonogr...

the use of corticosteroids is one of the methods put forward for the strengthening and speeding up the process of labor. after identification of glucocorticoid receptors in human amnion, the role of corticosteroids in starting the process of labor has been studied in numerous studies.the purpose of this study was to determine the effect of intravenous dexamethasone on preparing the cervix and o...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background : recently elective inductions of labor at term have increased dramatically which may be in part due to the patient and clinicians desire to arrange a convenient time for delivery. termination of pregnancy before emerging labor pain is an important concern. because induction of labor is one of the most commonly ...

The physiological demands of parturition and lactation lead to the increased pulsatile release of oxytocin (OT) into the circulation from the neurohypophysial axons of OT neurones in the supraoptic (SON) and paraventricular (PVN) nuclei. These states of increased OT release are accompanied by a significant plasticity in magnocellular OT neurones and their synaptic connections, and many of these...

the purposes of this study were to estimate the effects of risk factors on stillbirth parturition and evaluatethe effects of stillbirth on lactation performance in holstein dairy cows. data were obtained from a dairycattle herd located in isfahan province, iran. the logit of the probability of stillbirth was modeled usinglogistic regression and the effect of stillbirth on lactation performance ...