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Results 151 - 200 of 1263
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Brownlie Ts - - 2013
The primary objective of this study was to describe the reproductive performance of a selection of New Zealand dairy herds in 2009/10 and 2010/11. A secondary objective was to explore associations between a number of biophysical and socio-demographic herd-level variables and herd-level reproductive outcomes. Seasonal-calving, pasture-based herds from the Waikato ...
Kubo Keiko - - 2013
The concentrations of PCB congeners in the blubber and liver of mother Steller sea lions (Eumetopias jubatus; SSLs) and their fetuses from the coast of Hokkaido, Japan in 2008, 2010 and 2012 were analyzed by HRGC-HRMS, in order to elucidate PCB congener profiles and maternal-to-fetal transfer of PCBs in SSLs. ...
Romano Juan E - - 2013
Objective-To determine effects of per rectal amniotic sac palpation (ASP) for pregnancy diagnosis during early gestation on pregnancy loss in lactating cows. Design-Controlled, randomized block design. Animals-368 pregnant dairy cows. Procedures-Pregnancy was detected via transrectal ultrasonography (TRUS) at day 29 (day of estrus = day 0), and cows were allocated ...
Ramu Sivakumar - - 2013
Early identification of viable pregnancy is paramount for successful reproduction. Detection of specific signals from pre-implantation viable embryos in normal pregnancy circulation would indicate initiation of embryo-maternal interaction and create a continuum to accurately reflect embryo/fetal well-being post-implantation. Viable mammalian embryos secrete PreImplantation Factor (PIF), a biomarker which plays key, ...
Maslova Ekaterina - - 2013
Fat-soluble vitamins A, E and K have been shown to play roles in immunity and inflammation, but studies on child allergic disease have been few and inconsistent. The aim of the present study was to examine the relationship between maternal intake of vitamins A, E and K in mid-pregnancy and ...
Carvalho N A T - - 2013
Three experiments were designed to evaluate the effect of different circulating progesterone (P4) concentrations during synchronization of ovulation protocol for timed artificial insemination of seasonal anestrous buffalo cows. In the first trial, ovariectomized cows were randomly allocated into one of three groups: using new P4 devices (G-New; n = 8), ...
Bonilla L - - 2013
There are no reports on consequences of in vitro production (IVP) of embryos for the postnatal development of the calf or on postparturient function of the dam of the calf. Three hypotheses were evaluated: calves born as a result of transfer of an IVP embryo have reduced neonatal survival and ...
Asher G W - - 2013
This study, based on the analysis of growth and reproductive records of 6158 young red deer hinds, tested the hypothesis that the nutritional environment in early life influences the permissive body mass threshold for puberty at around 16 months of age. Live-weight at 3 months (i.e. weaning weight) was a ...
Sá Filho M F - - 2013
The present study evaluated the use of sex-sorted sperm upon estrus detection (ED) or following timed artificial insemination (TAI) in lactating dairy cows. Additionally, the effect of the presence of a corpus luteum (CL) at the beginning of the TAI protocol was verified. Cows (539 crossbred Gir × Holstein and ...
Bruno R G S - - 2013
The objectives of this study were to evaluate effects of 2 resynchronization protocols beginning at different intervals after artificial insemination (AI) on the pattern of return to estrus, ovarian responses, and pregnancy per AI (P/AI) to reinsemination. Lactating cows from 2 dairies, located in Texas (n = 2,233) and Minnesota ...
González-Mariscal Gabriela - - 2013
Rabbits mated at postpartum estrus become concurrently pregnant and lactating. They wean the first litter shortly before delivering the second one. Lactating-only rabbits do not spontaneously wean their young. These differences suggest that: a) suckling contributes to the long-term maintenance of maternal responsiveness and b) pregnancy-associated factors are essential to ...
McNamara K A - - 2013
Frozen-thawed boar sperm (FTS) has reduced motility and viability compared to cooled semen. Motility of FTS is related to in-vitro and in-vivo fertility, but this effect has not been determined in relation to the timing of ovulation. To test the effect of variable FTS motility in a multiple AI system, ...
Martins T - - 2013
Two experiments were designed to evaluate the effects of treatments with low versus high serum progesterone (P4) concentrations on factors associated with pregnancy success in postpubertal Nellore heifers submitted to either conventional or fixed timed artificial insemination (FTAI). Heifers were synchronized with a new controlled internal drug release device (CIDR; ...
Cetin Yunus - - 2013
The objective of this study was to determine the effects of timely injections of flunixin meglumine (FM) or vaginal application of prostaglandin E2 (PgE2) on pregnancy, fertility, fecundity, and prolificacy rates in Saanen goats. One hundred and sixty-three nonlactating Saanen does were treated with a flugestone acetate (20 mg)-containing intravaginal ...
Ayrim Aylin - - 2013
Abstract Introduction: Around the world, as well as in Turkey, women breastfeed their infants as long as possible. There is, however, a strong cultural taboo against continuing breastfeeding while having a new pregnancy. The aim of this study was to evaluate the outcome of pregnancies occurring during the lactation period ...
Fridlund C - - 2013
The objective was to evaluate the accuracy of pregnancy scanning by transabdominal ultrasonography and affecting factors. Altogether 44,783 ewes were registered (2008-2010), 39,724 diagnosed as pregnant and subsequently lambed. The ewes, 0.5-14 years old, were divided into 4 age and 6 breed groups and analysed. The accuracy (per cent; number ...
Johnston L J - - 2013
Pressures from consumers concerned with sow well-being in gestation stalls have encouraged producers to consider how to transition from individual gestation stalls to pens in existing buildings. The aim of this study was to evaluate the performance and well-being of sows in pens which were retrofitted from stalls (2.1 m ...
Rattanatray Leewen L 1] School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, South Australia, Australia [2] Discipline of Physiology, School of Molecular and Biomedical Science, University of Adelaide, Adelaide, South Australia, - - 2013
Background:Exposure to maternal obesity or hyperglycemia increases the risk of obesity and poor glucose tolerance in the offspring. We hypothesized that maternal overnutrition in late pregnancy would result in (i) lower methylation in the promoter region of the cytosolic form of phosphoenolpyruvate carboxykinase (PEPCK-C; PCK1) and (ii) higher expression of ...
Ferreira Gonzalo - - 2013
The objective of this study was to describe the reproductive performance of 23 grazing-based dairy farms from western Buenos Aires province in Argentina. The data set included data from the breeding season starting in May 2011 and ending in March 2012. Submission, conception, and pregnancy rates ranged from 42.4 to ...
Tongprasert Fuanglada - - 2013
Abstract Objective: To compare the levels of inhibin-A between pregnancies with fetal anemia secondary to Hb Bart's disease and pregnancies with normal non-anemic fetuses. Methods: 65 pregnancies at risk of fetal Hb Bart's disease scheduled for cordocentesis at 18 to 22 weeks were prospectively recruited into the study. Inhibin-A levels ...
Gharagozlou F - - 2013
Dissimilar distribution of male and female calves within left and right uterine horns has been observed in beef cows. A retrospective study was conducted to investigate the effect of side of pregnancy on secondary sex ratio in Holstein dairy cows. Data associated with sex of calves, side of pregnancy, sire, ...
Tomedi Laura E - - 2013
To estimate the effects of gestational weight gain (GWG), central adiposity and subcutaneous fat on maternal post-load glucose concentration, pregnant women [n = 413, 62 % black, 57 % with pregravid body mass index (BMI) ≥25] enrolled in a cohort study at ≤13 weeks gestation. GWG was abstracted from medical records. In a sub-sample of ...
Lagiou Pagona - - 2013
Placental weight has been associated with mammographic pattern and coronary heart disease in the adult offspring, but the mechanisms are unknown. We evaluated the associations of maternal and cord blood hormones with placental weight in normal pregnancies. Prospective study of 167 normal singleton pregnancies in Boston, USA and 256 in ...
Colazo M G - - 2013
A protocol for presynchronization of ovarian status with 2 injections of PGF2α given 14 d apart, with the last PGF2α injection given 12 or 14 d before Ovsynch increases pregnancy per artificial insemination (P/AI) in dairy cows. We determined the efficacy of reducing the interval from the last PGF2α injection ...
Pereira R V - - 2013
An important part of reproductive management programs on dairy farms is identification of nonpregnant cows and early re-insemination to achieve higher pregnancy rates. The objective of this study was to compare the effect on reproductive performance and pregnancy loss of 2 pregnancy diagnosis protocols: (1) pregnancy diagnosis performed 31 ± ...
Lemley C O - - 2013
Objectives were to examine effects of selenium (Se) supply and maternal nutritional plane during gestation on placental size at term and maternal endocrine profiles throughout gestation and early lactation. Ewe lambs (n = 84) were allocated to treatments that included Se supply of adequate Se (ASe; 11.5 μg/kg BW) or ...
Oliveira Andre P - - 2013
Objectives: We sought to characterize maternal health profiles and birth outcomes among First Nations people living in Southern Ontario. Methods: We performed a retrospective chart review of all 453 women from the Six Nations Reserve, Ontario, who were pregnant between 2005 and 2010. Maternal health behaviours, past medical history, physical ...
Deardorff Julianna J Division of Community Health and Human Development, University of California, Berkeley, CA, - - 2013
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. ...
Carvalho P D - - 2013
The primary objective of this study was to determine the effect of site of semen deposition on fertilization rate and embryo quality in superovulated cows. The hypothesis was that deposition of semen into the uterine horns would increase the fertilization rate compared with deposition of semen into the uterine body. ...
Sá Filho M F - - 2013
Two experiments were designed to evaluate the use of resynchronization (RESYNCH) protocols using a progestin-based timed artificial insemination (TAI) protocol in beef cattle. In experiment 1, 475 cyclic Nelore heifers were resynchronized 22 days after the first TAI using two different inducers of new follicular wave emergence (estradiol benzoate [EB; ...
Sommer C - - 2013
Objective:In a multiethnic, population based study, to investigate the change in indicators of adiposity (being weight gain, and gain of total fat, truncal fat and mean skinfold thickness) from early pregnancy to 28 weeks of gestation overall and across ethnic groups, and to explore the association between change in indicators ...
Romejko-Wolniewicz Ewa - - 2013
Abstract Objective: The aim of this study was to assess the relationship between the BMI of the firstborn offspring at age 12 and maternal lipid levels at term and at 6 months postpartum. Design and Methods: The study included children born in the 2(nd) Department of Obstetrics and Gynecology of ...
Pereira M H C - - 2013
The objective of this study was to compare a GnRH-based to an estrogen/progesterone (E2/P4)-based protocol for estrous cycle synchronization and fixed timed artificial insemination (TAI), both designed for synchronization of ovulation and to reduce the period from follicular emergence until ovulation in cows with a synchronized follicular wave. A total ...
Wong Vincent W - - 2013
We evaluated maternal weight gain in women with gestational diabetes, and assessed their compliance with the Institute of Medicine (IOM) weight gain targets. Only 28% of women achieved the IOM targets, with 40% gaining inadequate weight. Those who gained inadequate weight did not suffer any increase in adverse pregnancy outcomes.
Wiberg-Itzel Eva - - 2013
To assess whether the frequency of adverse neonatal outcome at delivery is related to the level of lactate in amniotic fluid and to the use of oxytocin. Prospective observational study. Soder Hospital, Stockholm, Sweden. 74 women in active labor with a gestational age ≥ 36 weeks and mixed parity. Levels ...
Whittier William D - - 2013
The present study determined whether a 5-day CO-Synch + controlled internal drug release (CIDR) protocol with two doses of PGF2α would improve timed artificial insemination (AI) pregnancy rate compared with 7-day CO-Synch + CIDR protocol in beef cows. Angus cross beef cows (N = 1817) at 12 locations were randomly ...
Mendez Dara D - - 2013
We explored the relationship between neighborhood socioeconomic disadvantage (NSED) and gestational weight gain and loss and if the association differed by race. A census tract level NSED index (categorized as low, mid-low, mid-high, and high) was generated from 12 measures from the 2000 US Census data. Gestational weight gain and ...
Harton Gary L - - 2013
To assess the relationship between maternal age, chromosome abnormality, implantation, and pregnancy loss. Multicenter retrospective study. IVF centers in the United States. IVF patients undergoing chromosome screening. Embryo biopsy on day 3 or day 5/6 with preimplantation genetic diagnosis (PGD) by array comparative genomic hybridization. Aneuploidy, implantation, pregnancy, and loss ...
Stroud Laura R - - 2013
Maternal smoking during pregnancy (MSDP) is an independent risk factor for offspring nicotine dependence (ND), but mechanisms remain unknown. We investigated prenatal glucocorticoid (cortisol) and androgen (testosterone) associations with offspring ND over 40 years and the possibility that prenatal glucocorticoids and androgens would mediate links between MSDP and offspring ND. ...
Bertelsen Randi J - - 2013
Whether probiotics, which can influence the microbiome, prevent infant eczema or allergic disease remains an open question. Most studies have focused on high-risk infants. We sought to assess whether consumption of probiotic milk products protects against atopic eczema, rhinoconjunctivitis, and asthma in early childhood in a large population-based pregnancy cohort ...
Donnay Sergio - - 2013
Severe and mild iodine deficiency during pregnancy and lactation affects thyroid function of the mother and neonate as well as the infant's neuropsychological development. Studies performed in Spain confirm that most women are iodine deficient during pregnancy and lactation. Pregnant and breast feeding women and women planning to become pregnant ...
Korine Carmi - - 2013
Selection of suitable roosts by bats can have fitness benefits by providing shelter and a place to rear young. Assuming that lactating bats behave differently from, and have greater food requirements than pregnant bats, we predicted that near the end of pregnancy, desert-dwelling bats would move to roosts appropriate to ...
Johnson Sandy K - - 2013
Rebreeding performance of the first-calf heifer has major economic consequences for cow-calf producers. Management systems that allow heifers to cost-effectively achieve a body condition score of 5 to 6 at calving and maintain this through rebreeding have a higher probability of pregnancy success.
Bilby T R - - 2013
The objective was to determine the effect of exogenous progesterone (P4) in a timed artificial insemination (TAI) protocol initiated at 2 different times post-AI on pregnancies per AI (P/AI) in lactating dairy cows. Cows (n = 1,982) in 5 dairy herds were assigned randomly at a nonpregnancy diagnosis 32 ± ...
Perry George A - - 2013
Age at puberty is a critical trait, because pregnancy success during the breeding season is correlated with the percentage of heifers that reach puberty before or early in the breeding season. A negative genetic correlation between age at puberty and heifer pregnancy rate indicate that selection to decrease age at ...
Uematsu Mizuho - - 2013
Stillbirth and dystocia are major factors reducing the productivity of beef cattle. The objective of this study was to determine the effect of season, parity and gestation length on the rates of stillbirth and dystocia in Japanese Black cattle. Calving records were obtained from 905 farms in Miyazaki Prefecture, Japan. ...
Fordyce G - - 2013
To compare reproduction in extensively managed, tropically adapted beef cows that were either seropositive or seronegative to Neospora caninum. Longitudinal study of cows within management groups. Compare pregnancy with weaning outcomes for 502 seropositive and 3255 seronegative cows in 25 management groups. We found N. caninum in all herds, with ...
Bartolome Julian A - - 2013
The objectives of this study were to evaluate the efficacy of (1) administering ceftiofur hydrochloride in dairy cows with calving-related disorders to prevent metritis and (2) a combination of GnRH and PGF2α for the treatment of clinical endometritis, under Argentinean dairy farming conditions. Cows at high risk (HRC) for metritis ...
Yildiz Yunus - - 2013
Abstract Objective: The aim of study was to investigate relationship between 3rd trimester maternal hemoglobin values and fetal birth weight/length. Methods: Retrospective study was conducted on 28600 Turkish pregnant women who delivered between January 2010 and December 2011. Hemoglobin values at 3rd trimester, all birth weights/lengths of newborns were retrospectively ...
Koutra Katerina - - 2013
Antenatal maternal mental health has been identified as an important determinant of postpartum depression (PPD). We investigated the occurrence of depression both antenatally and postnatally and examined whether maternal trait anxiety and depression during pregnancy were associated with PPD at 8 weeks postpartum in a prospective mother-child cohort (Rhea Study) in ...
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