Search Results
Results 101 - 150 of 1181
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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 ...
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 ...
Duthie Leanne - - 2013
Overexposure of the developing fetus to glucocorticoids is hypothesised to be one of the key mechanisms linking early life development with later life disease. The maternal hypothalamic-pituitary-adrenal (HPA) axis undergoes dramatic changes during pregnancy and postpartum. Although cortisol levels rise threefold by the third trimester, the fetus is partially protected ...
Fischer U R - - 2013
A 5-year-old Brown Swiss cow being 8 months pregnant became recumbent and died. Postmortem examination revealed a multiple pregnancy with six normally developed fetuses and an amorphous globosus. The cow's internal organs were displaced and compressed the lungs. Fatty liver caused by metabolic disturbances was diagnosed. A multiple pregnancy with ...
Magnus Maria C - - 2013
Studies suggest that prenatal vitamin D status may be inversely associated with lower respiratory tract infections (LRTIs) early in life. Studies of prenatal vitamin D status and development of asthma have inconsistent findings. We examined the associations of maternal mid-pregnancy 25-hydroxyvitamin D [25(OH)D] level with the frequency of LRTIs by ...
Arruda A G - - 2013
The objective of this randomized noninferiority clinical trial was to compare the effect of treatment with 3 different dry cow therapy formulations at dry-off on cow-level health and production parameters in the first 100 d in milk (DIM) in the subsequent lactation, including 305-d mature-equivalent (305ME) milk production, linear score ...
Lomander H - - 2013
The aim of this retrospective single-cohort study was to investigate if a rapid change in feeding, management, or housing or an increasing incidence of claw diseases or udder health problems is associated with decreased reproductive performance. Data on individual cows and herds were retrieved from the Swedish official milk recording ...
Shorten P R - - 2013
The goal was to estimate the heritabilities and genetic variances for embryo/fetal survival (ES) in sheep along with the effect of premating ewe weight, age and bilateral/unilateral ovulation on ES. The data consisted of 11,369 records on ovulation rate and litter size. Statistical models for ES included year and ovulation ...
Garcia-Ispierto Irina - - 2013
This study compared the efficiency of a five-day or standard (nine-day) progesterone-based regimen combined with equine chorionic gonadotrophin (eCG) in a fixed-time AI (FTAI) protocol for dairy cows. The data examined were derived from 3,577 inseminations conducted in three dairy herds. Animals with no estrus signs detected over 21 days ...
Miyake Yoshihiro - - 2013
In Western countries, active maternal smoking during pregnancy is recognized as the most important preventable risk factor for adverse birth outcomes. However, the effect of passive maternal smoking is less clear and has not been extensively studied. In Japan, there has been only one epidemiological study which examined the effects ...
Lima F S - - 2013
The objectives of the current study were to investigate the efficacy of PGF2α as a therapy to reduce the prevalence of subclinical endometritis and improve pregnancy per artificial insemination (P/AI) in cows subjected to a timed artificial insemination (AI) program. A total of 1,342 lactating Holstein dairy cows were allocated ...
Sens A - - 2013
Subclinical endometritis (SCE) has a severe negative effect on reproductive performance of dairy cows. Different studies have shown a wide variety of cut points for the polymorphonuclear neutrophilic leukocyte (PMNL) percentage to define SCE and differing sampling times. Possible risk factors for SCE, such as low body condition score, hyperketonemia, ...
Davenport Margie H - - 2013
To evaluate whether the timing of excessive maternal weight gain in a cohort of women following current guidelines for healthy living during pregnancy affects neonatal adiposity at birth. One hundred seventy-two healthy women who were at least 18 years old with body mass indexes (BMIs) of at least 18.5 were ...
Cisneiros Rosangela M - - 2013
Objective: Maternal obesity is a strong risk factor for gestational diabetes mellitus and fetal macrosomia. We assessed the association between maternal visceral adiposity tissue (VAT) depth in the first half of pregnancy and both glucose tolerance in late pregnancy and newborn weight in pregnant adolescents. Methods: We completed a prospective ...
Escartín L - - 2013
Abstract Objective. To update knowledge on determinants of newborn body size in Northeast of Spain considering gestational, parental and socio-cultural variables. Methods. Cross-sectional assessment of 1442 infants from Aragón (Spain), born between March 2009-March 2010. Obstetric, neonatal, socio-demographic and parental anthropometry data were collected during the first infant scheduled health ...
Magee Susanna R - - 2013
Cigarette smoking during pregnancy is one of the most preventable causes of infant morbidity and mortality, yet 80 % of women who smoked prior to pregnancy continue to smoke during pregnancy. Past studies have found that lower maternal-fetal attachment predicts smoking status in pregnancy, yet past research has not examined whether ...
Joshi Surekha - - 2013
Substantial physiological changes occur during pregnancy and lactation, making breast evaluation challenging in these patients. This article reviews the imaging challenges of the breast during pregnancy and lactation. The normal imaging appearance, imaging protocols and the imaging features of each commonly encountered benign and malignant entity with pathological correlation and ...
Eborn D R - - 2013
Programs for developing replacement heifers are designed for heifers to calve at 2 yr of age and to extend their stayability in the herd while minimizing feed cost. The experimental objective was to determine whether developing prepuberal heifers on less dietary energy and to a BW of 55% rather than ...
Mercadante P M - - 2013
Inclusion of Bos indicus genetics improves production traits of cattle maintained in hot climates. Limited information exists detailing pregnancy-specific events as influenced by variable amounts of Bos indicus genetics. Three experiments were completed to examine the effect of Bos taurus and Bos indicus genotypes on fetal size and plasma pregnancy-associated ...
Takahashi Masahiro - - 2013
Feeding rumen bypass polyunsaturated fatty acids (PUFA) affects the reproduction of Japanese Black cows, though its influence on superovulatory response in donor cows and conception in recipient cattle has not been well studied. Here we investigated the effects of PUFA to Japanese Black cows on blood biochemistry, the numbers of ...
Strøm-Roum E M - - 2013
Is the age of the father associated with placental weight or the ratio of placental weight to birthweight? Placental weight and placental to birthweight ratio increased according to increasing paternal age, also after adjustment for maternal age. High paternal age and also high placental to birthweight ratio have been associated ...
Aguayo Anibal - - 2013
Iodine is an essential trace element for the synthesis of thyroid hormones, which are keys in maternal metabolism during pregnancy as well as in neurological development during fetal and postnatal life. This was a prospective study on iodine status and thyroid function in women during pregnancy in the Basque country ...
Coluzzi F - - 2013
During pregnancy most of women will experience some kind of pain, either as a result of a pre-existing condition (low back pain, headache, fibromyalgia, and rheumatoid arthritis) or as a direct consequence of pregnancy (weight gain, postural changes, pelvic floor dysfunction, hormonal factors). However, chronic pain management during pregnancy and ...
Al Riyami Arwa Z - - 2013
The management of pregnant women with anti-Jsb is challenging due to the paucity of antigen-negative blood for fetal and neonatal transfusion. A 29-year-old woman with anti-Jsb was referred for assessment of recurrent fetal losses. With the presence of the sister as a historically matched donor, she was planned for active ...
Lane Elizabeth A - - 2013
Herd management record analysis facilitates accurate assessment of the current herd reproductive status; a crucial decision making tool to implement effective change. To determine the relative importance of cow and management factors on reproductive indices in moderate-yielding Irish seasonal-calving dairy herds, breeding records of 1173 cows were collected from 10 ...
Pohler K G - - 2013
The objective was to examine the relationship between ovulatory follicle size and embryo/fetal survival by using circulating concentrations of bovine pregnancy associated glycoproteins (bPAGs) to detect the presence of an embryo/fetus and monitor placental function. Before examining the relationship between bPAGs, ovulatory follicle size and embryo/fetal survival, the half-life of ...
Stockton M C - - 2013
A target BW is often used to estimate sexual maturity in beef heifers. The target BW, a percentage of mature BW, is generally an average for the breed, herd, or both. Heifer development is done in groups, or herds, and not all heifers respond similarly to the same development regimen. ...
Bridges G A - - 2013
Pregnancy failure in livestock can result from failure to fertilize the oocyte or embryonic loss during gestation. The focus of this review is on cattle and factors affecting and mechanisms related to uterine insufficiency for pregnancy. A variety of factors contribute to embryonic loss and it may be exacerbated in ...
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