Search Results
Results 351 - 400 of 1264
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Huanca W - - 2012
Alpacas, like all camelids are induced ovulators which means mating is required to induce ovulation. Studies over the last decades have clearly established the link between nutrition and ruminant fertility. These animals live above 4000m with a deficient quality and quantity of pastures and with a rate of birth less ...
Niasari-Naslaji A - - 2012
The present study was conducted to evaluate laparoscopic intrauterine and intraperitoneal AI in a fat-tailed sheep breed. Multiparous and nulliparous (n=72) healthy Shall ewes (Iranian native breed) were assigned into 3 experimental groups to be inseminated with 3 laparoscopically insemination methods, including intrauterine insemination with frozen semen (IUIFZ; n=34), intraperitoneal ...
Uchoa Dc - - 2012
The aim of this study was to evaluate powdered coconut water extender (ACP-106c; ACP Serviços Tecnológicos Ltda, ACP Biotecnologia, Fortaleza, Ceará, Brazil) as a diluent for freezing dog semen and the fertility after vaginal insemination of semen frozen therein. Ten ejaculates were collected from five dogs, evaluated fresh, diluted in ...
Detomini J P - - 2012
The aim of this study was to establish a comparison between heterospermic and monospermic semen on the pregnancy rate of fixed-time AI Bos indicus cows. The experiment was conducted in the state of Mato Grosso, Brazil, during December 2010 and February 2011. Multiparous (n=173) and primiparous (n=204) Nelore cows, 45±15 ...
Sánchez-Rodríguez H L - - 2012
Vasodilation of the female reproductive vasculature is essential to supply the increasing demands associated with reproductive processes; including maintenance of a healthy functional luteal structure, and the establishment and continuance of pregnancy. Due to its vasodilatory effects, prostaglandin E(2) has been identified as a potential candidate sustaining such vascular effects. ...
Alvarez R H - - 2012
Currently, artificial insemination with sexed semen is the simplest and most economical strategy for choosing the sex of the offspring. However, sexed semen is not available for certain valuable bulls. Therefore, the use of unsexed semen and subsequent sexing of embryos before transfer into recipients can be an interesting approach ...
Romero D - - 2012
An experiment was designed to compare pregnancy rates in lactating dairy cows synchronized with a 7-day CIDR-Synch or a 5-day CIDR-Synch program and to determine if the addition of a second prostaglandin F(2α) (PGF) injection to the 7-day CIDR-Synch program would improve pregnancy rates following fixed-time AI (FTAI). The experiments ...
Pires Gabriel Natan GN Department of Psychobiology-Universidede Federal São Paulo-São, Paulo, - - 2012
Sleep restriction is a common feature of modern lifestyle and its effects can be extended to pregnancy. Several neurobehavioural consequences of sleep restriction during pregnancy have been reported, among which stand out perinatal depression and maternal fatigue, however, its effects over mother-infant relationship warrant further investigation. Thus, this study was ...
Maeda Yousuke - - 2012
T helper (Th) cells play a central role in immune responses and new Th1/Th2/Th17 and regulatory T (Treg)-cell paradigm in pregnancy has developed. Progesterone (P(4)) is essential for the maintenance of pregnancy; however the effect of P(4) on Th1/Th2/Th17 and Treg paradigm is unclear in cows. We evaluated the effect ...
Rasmussen S - - 2012
The main objective was to determine the efficacy of using X-sorted sperm to produce embryos in vitro for transfer into lactating dairy cows. Cows were bred by timed artificial insemination (TAI) using nonsorted semen or X-sorted sperm, or they received a fresh embryo produced in vitro by fertilization with X-sorted or nonsorted ...
Ferguson James D - - 2012
Sixteen herds were selected from a pool of 64 herds nominated by consultants for participation in a national survey to demonstrate excellence in reproductive performance. For inclusion in the survey, herds had to have comprehensive records in a farm computer database or participate in a Dairy Herd Improvement Association record ...
Damasceno Débora Cristina - - 2012
The aim of this study was to evaluate the effects of exercise prior to or during pregnancy on maternal reproductive outcome, biochemical profile, and on fetal anomaly frequency in a rat pregnancy model utilizing chemically induced diabetes. Wistar rats (minimum n = 11 animals/group) were randomly assigned the following groups: ...
Spencer Kevin - - 2012
OBJECTIVE: To examine the gestational age, maternal ethnicity and cigarette dosage effects of the reduction of maternal serum pregnancy-associated plasma protein A (PAPP-A) and free-β human chorionic gonadotrophin (free hCGβ) in smokers. METHODS: Maternal serum PAPP-A and free hCGβ corrected for confounders, excluding smoking, in first trimester smokers and nonsmokers ...
Auriemma Renata S - - 2013
The current survey study investigated the recurrence rate of hyperprolactinemia after cabergoline (CAB)-induced pregnancy and after lactation as well as safety of CAB exposure during early gestation. From 1997-2008, 143 pregnancies were recorded in 91 patients with hyperprolactinemia (age 30.4 ± 4.7 yr, 76 microadenomas, 10 macroadenomas, and five nontumoral ...
Medici Marco - - 2012
Context:Maternal hyperthyroidism during pregnancy is associated with an increased risk of low birth weight, predisposing to neonatal morbidity and mortality. However, the effects of variation in maternal serum thyroid parameters within the normal range on birth weight are largely unknown.Objective:The aim was to study the effects of early pregnancy maternal ...
Atkins J A - - 2012
A single ovulation, reciprocal embryo transfer study was used to investigate effects of oocyte competence and maternal environment on pregnancy establishment and maintenance in beef cows. Estrous cycles were synchronized in suckled beef cows and embryo donors were inseminated on d 0 (n = 810). Cows were classified on d ...
Martínez-Mesa Jeovany J Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil. - - 2012
To evaluate the effect of (1) maternal smoking during pregnancy; and (2) partner smoking on offspring's height in infancy, childhood, and adolescence. All hospital live births from 1993 (5,249) were identified, and these infants were followed up at several ages. Height for age, expressed as z-scores using the World Health ...
Josefson Jami L JL Division of Pediatric Endocrinology, Ann and Robert H. Lurie Children's Hospital of Chicago, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611-2605, USA. - - 2013
An inverse relationship between total serum 25-hydroxyvitamin D (25-OH D) and increased adiposity has been established in children, adolescents, and adults. However, the relationship between neonatal adiposity and vitamin D status has not been reported. Both maternal obesity and vitamin D deficiency in pregnancy are common and are associated with ...
Escalante R C - - 2012
Progesterone-releasing (controlled internal drug release, CIDR) devices inserted for 14 d are used to presynchronize the estrous cycle for timed artificial insemination (TAI) in beef heifers (14-d CIDR-PGF(2α) program). The objective was to test a similar program in dairy cows by measuring first-service conception rates (FSCR), pregnancy rates after 2 ...
Wagner Carol L - - 2012
OBJECTIVE: To determine whether 4000 IU vitamin D(3)/day (vs. 2000 IU/day) during pregnancy is safe and improves maternal/neonatal 25(OH)D in a dose-dependent manner. STUDY DESIGN: 257 pregnant women 12-16 weeks' gestation were enrolled. Randomization to 2000- vs. 4000 IU/day followed one-month run-in at 2000 IU/day. Participants were monitored for hypercalciuria, ...
Schulman M L - - 2012
Pregnancy losses include early embryonic death (EED) and later (postimplantation) abortion. Abortions, particularly Equid herpesvirus (EHV-1) abortion epizootics, cause severe economic and production losses. The long-term effects of EHV-1 and other abortions on subsequent reproductive performance in broodmare populations, however, remain undefined. This study described the relationships of EED and ...
Mayer Jennifer - - 2012
Early and accurate pregnancy diagnosis in dairy cattle is a prerequisite for successful herd management. However, most of the currently available methods allow an early diagnosis only approximately 30 days after insemination. Recently, circulating nucleic acids (CNAs) have been used successfully as biomarkers in prenatal diagnosis at different gestational stages ...
Baci Yelda - - 2012
The aim of the study is to evaluate the association between gestational diabetes mellitus (GDM) and maternal obesity and weight gain during pregnancy. A prospective cohort study screened 614 consecutive gravid patients for GDM using 50 g glucose challenge test (GCT). The pregnant women were divided into 4 groups according to ...
Couto G B - - 2012
The objective was to compare a leukocyte esterase (LE) test with endometrial cytology (EC) for diagnosis of subclinical endometritis in dairy cows. The relationship between subsequent fertility and the uterine (Ut) and cervical (Cx) leukocyte esterase activity was determined by the odds of pregnancy by 90 days in milk (DIM). ...
Kenyon A G - - 2012
Objectives were to determine progesterone concentration (P4) from days 4 to 28 relative to presumptive estrus necessary for maintenance of pregnancy in lactating Holstein cows. Cows were assigned to the low P4 (LowP4, n=28) or control (n=153) treatments. All cows were presynchronized with two injections of PGF(2α) (14d apart) and ...
Budenhofer Brigitte K - - 2012
INTRODUCTION: During pregnancy, physiologic changes in maternal thyroid function take place especially due to hormonal as well as metabolic processes. Human chorionic gonadotropin activates the maternal thyroid gland leading to increased thyroid hormone production. A sufficient availability of maternal thyroid hormones is essential for fetal development, especially during the first ...
Ashoor G - - 2012
Objective: To examine the possible effects of maternal and fetal characteristics on the fetal fraction in maternal plasma cell-free (cf) DNA at 11-13 weeks' gestation and estimate the proportion of pregnancies at high-risk of non-invasive prenatal testing (NIPT) failure because the fetal fraction is less than 4%. Methods: In 1,949 ...
Reynolds Rebecca M RM Endocrinology Unit, Centre for Cardiovascular Science, University of Edinburgh, Queen's Medical Research Institute, Edinburgh, UK. - - 2013
Implications for practice and research: Children of mothers who are obese prior to pregnancy, and/or gain excessive weight in early pregnancy, carry increased risk for obesity in adolescence. Obese women of childbearing age should be actively supported to achieve lifestyle modification prior to conception or in early pregnancy. Research is ...
Knox R V - - 2012
A survey was performed to assess whether reproductive management differed among small (S, <500 sows), medium (M, 501 to 2000 sows) and large (L, 2001 to 8000 sows) sized farms (n = 113). Farms with 501 to 4000 sows/barn were most frequent with sows kept in stalls on 90% of ...
Marzioni D - - 2012
We evaluated the presence of HtrA1 in maternal plasma of normal pregnancies and of pregnancies complicated by preeclampsia (PE) without and with Intrauterine Growth Restriction (IUGR). We demonstrate that HtrA1 maternal plasma levels show significant different concentrations in first, second and third trimester of gestation and that HtrA1 concentration increases ...
Wang L - - 2012
The rapid growth in sika deer (Cervus nippon) farming and interest in their conservation is an impetus for development of embryo transfer (ET) procedures. However, a paucity of research has prevented widespread application of ET in this species. The objective of the present study was to establish a multiple ovulation ...
Mello-Neto Julio - - 2012
This study evaluated the influence of iron supplementation in pregnancy and breastfeeding on iron status of lactating women from a Brazilian Human Milk Bank. Blood and mature breast milk samples were collected from 145 women for assessment of iron status, as well as copper and zinc status. Haemoglobin, serum iron ...
Burdge Graham C - - 2012
Maternal folic acid (FA) supplementation is well recognised to protect against neural tube defects. Folate is a critical cofactor in one-carbon metabolism involved in the epigenetic regulation of transcription that underpins development. Thus, it is possible that maternal FA supplementation may have additional, unforeseen persistent effects in the offspring. This ...
Cozzi V - - 2012
Endothelial dysfunction typical of preeclampsia (PE) is the result of an excessive maternal inflammatory response to pregnancy. We investigated PTX3 in maternal, fetal and placental compartments in complicated pregnancies. Maternal blood samples were collected during the third trimester in 53 PE, 43 IUGR (intrauterine growth restriction) and 50 normal pregnancies. ...
Hartwig Isabel R V - - 2013
Are maternal progesterone levels in early pregnancy associated with fetal birthweight? Low levels of first-trimester maternal progesterone are significantly associated with a reduction in birthweight in girls, but not boys. Progesterone in the third trimester of pregnancy has previously been related to birthweight in humans. Pregnant women between gestational weeks ...
Andreu-Vázquez C - - 2012
This study was designed to determine the effects of twinning on the subsequent reproductive performance and productive lifespan of high milk-producing dairy cows. The data analyzed were taken from complete reproductive records for 4861 Holstein Friesian cows comprising a commercial herd, including data for 12 587 calving events from April ...
Mattoso Crs - - 2012
Plasmatic concentrations of von Willebrand Factor (vWF) increase during pregnancy in humans and dogs; however the mechanism of such increase is still not well defined. The aims of this study were: (i) to evaluate changes in vWF concentration during pregnancy and during the subsequent oestrous cycle in bitches affected and ...
Deardorff Julianna - - 2012
Life course theory suggests that early life experiences can shape health over a lifetime and across generations. Associations between maternal pregnancy experience and daughters' age at menarche are not well understood. We examined whether maternal pre-pregnancy BMI and gestational weight gain (GWG) were independently related to daughters' age at menarche. ...
Tita Alan Thevenet N - - 2012
To describe appropriate maternal and obstetrical indications for primary cesarean delivery. The list of potential indications is long. Among all maternal and obstetrical indications, labor dystocia is the most common; multifetal pregnancy and malpresentation are not infrequent. Maternal indications, including human immunodeficiency virus (with high viral load) and herpes simplex ...
Rodríguez-González G L GL 1 Department of Reproductive Biology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, - - 2012
Maternal protein restriction (MPR) during pregnancy impaired the reproduction of male offspring. We investigated, during the first wave of spermatogenesis, whether MPR exerts deleterious effects on germ cell proliferation and differentiation, as well as androgen receptor (AR) protein expression, which was used as a marker for Sertoli cell (SC) maturation. ...
Raje L L 1 Smt PN Doshi Women's College, Jagdhir Boda Vidya Sankul, Cama Lane Ghatkopar, (West)Mumbai, - - 2012
Maternal weight gain and pattern of weight gain during pregnancy influence the ultimate outcome of pregnancy. Pregravid body mass index (BMI), maternal dietary intake, maternal height and age all determine the weight gain during pregnancy. The study was taken up with an objective to observe maternal weight gain and its ...
Dzal Yvonne A - - 2012
In mammals, reproduction, especially for females is energetically demanding. Therefore, during the reproductive period females could potentially adjust patterns of thermoregulation and foraging in concert to minimise the energetic constraints associated with pregnancy and lactation. We assessed the influence of pregnancy, lactation, and post-lactation on torpor use and foraging behaviour ...
Di Francesco S - - 2012
The aim was to ascertain whether relationships between corpus luteum (CL) vascularization, CL function, and pregnancy outcome in AI in buffaloes were consistent across the breeding season and transition period to the nonbreeding season in a Mediterranean environment. Stage of the estrous cycle in Italian Mediterranean buffaloes was synchronized using ...
Gumen A - - 2012
The aim of this study was to evaluate the effect of presynchronization with or without the detection of estrus on first service pregnancy per artificial insemination (P/AI) and on Ovsynch outcome in lactating dairy cows. A total of 511 cows were divided randomly but unevenly into 3 treatment groups at ...
Orzechowski Kelly M - - 2012
This article reviews the diagnosis and management of the most common respiratory conditions complicating pregnancy-asthma and influenza. We also review strategies for smoking cessation in pregnancy as, in addition to exacerbating all other pulmonary conditions, smoking is the most modifiable risk factor for poor pregnancy outcome. Moreover, the obstetrician frequently ...
Akter S M - - 2012
Maternal malnutrition and poor gestational weight gain are the most important causes of low birth weight and high rates of newborn mortality. To assess the effects of nutrition counseling in the third trimester of pregnancy on maternal weight gain, birth weight of newborn, and breastfeeding practices. This was a longitudinal ...
De Leon-Luis Juan - - 2012
Adiponectin is an adipocyte-derived plasma protein with insulin-sensitizing and antiatherosclerotic properties. The objectives of the present study were to determine the amniotic fluid (AF) concentration of adiponectin during the second trimester of pregnancy and to demonstrate its association with maternal and fetal variables and AF concentrations of insulin, leptin, and ...
Revello Rocio - - 2012
Abstract Objectives: to evaluate the incidence and characteristics of maternal complications in triple pregnancies. An additional objective was to study the relation between assisted reproductive techniques and maternal complications. Material and Methods: retrospective study on 147 triplets assisted at the Gynecology and Obstetrics department of La Paz University Hospital between ...
Stevenson J S - - 2012
The objective was to determine the effect of 2 presynchronization treatments on first-service pregnancy per artificial insemination (P/AI) in 4 dairy herds during warm and cool seasons of the year. Cows with ear tags ending with even digits at calving were enrolled in Presynch-10 (Presynch-10): two 25-mg injections of PGF(2α) ...
Stamnes Køpp U M - - 2012
Objective:To estimate the associations between maternal pre-pregnancy body mass index (BMI) or gestational weight change (GWC) during pregnancy and offspring BMI at 3 years of age, while taking several pre-and postnatal factors into account.Design:The Norwegian Mother and Child Cohort Study is a population-based pregnancy cohort study of women recruited from ...
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