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Showing 1 to 20 of 83 for “"Primiparous"”.
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Experimentally induced Escherichia coli mastitis in lactating primiparous cows
Escherichia coli (E. coli) is één van de voornaamste oorzaken van klinische mastitis bij hoogproductieve melkkoeien. De bacterie bezit geen specifieke virulentiefactoren met een rol in de pathogenese van de aandoening. De afweerreactie na experimenteel geïnduceerde E. coli mastitis werd reeds …
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The Relationship between Marital Interdependence and Adaptation to Parenthood in Primiparous Couples
… of 102 married, primarily white, middle class primiparous couples. The Interdependence Scale, with affective, problem-solving, and household maintenance subscales, was used to measure prenatal expectations and postpartum realities of marital interdependence. The instrument was designed to …
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Evaluation of long-term CIDR-based estrus synchronization protocols in primiparous two-year-old beef cows
… management of replacement beef heifers and primiparous cows is necessary to ensure their continued long-term reproductive success, which provides the opportunity for beef producers to increase retention rates, reduce input costs, and ultimately enhance production efficiency. Estrus …
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Metabolic, reproductive, and performance evaluation in primiparous Nellore beef cows under grazing with different ages at breeding
… reproductive and performance differences of primiparous Nellore cows, which became pregnant at 14 or 24 months. Thirty- eight primiparous Nellore cows with 200 ± 30 days of gestation were used, divided into two treatments: 14 - animals that became pregnant at 14 months of age, and 24 - …
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Effects of energy-protein supplementation frequency on performance of primiparous grazing beef cows during pre and postpartum
… calving) and postpartum (105 d after calving) of primiparous beef cows on performance and metabolic characteristics under grazing conditions. Twenty-four pregnant Nellore primiparous cows with average BW of 409±8.0 kg, 22±0.9 mo old and 172±2.5 d of gestation were used in this trial. Treatments …
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The effect of selection for milk yield on net energy balance and plasma concentrations of endogenous hormones and metabolites in primiparous Holsteins
… fatty acids (NEFA) and glucose was studied in primiparous Holstein cows. Net energy balance was calculated and serial blood samples were collected at 0, 45, 90, 180 d postpartum (dpp) and 14 d of the dry period over a 7 h period via jugular cannulae. After 2.5 h of blood collection, growth …
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Effect of naloxone on serum luteinizing hormone concentrations during the early postpartum period and the estrous cycle in primiparous and multiparous holstein cows
… the estrous cycle. In experiment 1, 24 cows (12 primiparous; 12 multiparous) received either saline (n = 12) or 1 mg/kg naloxone (n = 12) i. v. at 14 1 days postpartum. Blood samples were collected at 15-minute intervals for 2 hours before and 2.5 hours after naloxone or saline. Serum LH …
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The long-term effects of reproductive experience on the neurobiology of anxiety and its treatment: a cross species approach in female rats and women
… in nulliparous (virgin) rats, but not primiparous (reproductively experienced) rats. Primiparous rats also had altered anxiety-related gene expression (GABAA receptor subunits and corticotrophin-releasing hormone) in the basolateral amygdala and ventral hippocampus. Chapter 3 showed …
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Influence of Maternal Protein Restriction in Primiparous Heifers During Mid- And/Or Late Gestation on Dam Performance and Progeny Growth, Carcass Characteristics, and Gene Expression
<p>Effect of nutrient status in gestating beef cows has been shown to impact dam performance and may affect developmental processes in the fetus that could influence offspring throughout their lives. One hundred eight Angus × Simmental heifers were utilized in a randomized complete block design …
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Effects of heat-stress-induced physiological changes on the productivity of dairy cattle
… glucose concentrations, and milk production in primiparous (n=26) and multiparous (n=27) Holstein cows. Glucose was measured in coccygeal vein blood twice weekly using a hand-held glucometer (Abbott Precision Xtra) from May through July. Rectal temperatures were also collected. The days …
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Relations Among Adolescent Motherhood, Caregiving Experience, and Perceptual and Caregiving Responses to Infant Cries
… to different infant cry stimuli. Twenty-five primiparous adolescents and 39 nulliparous adolescents listened to segments of three different infant cry types that varied in the amount of high-pitched, hyperphonation contained in the acoustic structure. Participants rated their responses to the …
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Investigating the effect of dexamethasone on productivity, immune function, and behavior in dystocic periparturient dairy cattle
… and production measures. We observed that primiparous DEX cows exhibited a greater haptoglobin concentration on d 3 and d 7 postpartum compared to primiparous CON cows. Behavior was seen to be altered between the treatments, with DEX cows having reduced locomotion and increased lying times …
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Parity and mothers' knowledge of infant development
… the level of knowledge of infant development of primiparous and multiparous mothers when the mothers' level of education was controlled. The conceptual framework of experiential learning was tested. The nonrandom sample of 54 mothers was comprised of first-time mothers and third- or …
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Intake capacity of the Icelandic dairy cow. Effect of animal factors, concentrate ratio and feeding method
… aiming at a 45% concentrate ratio (SF45). Primiparous cows fed TMR had significantly higher DMI than those fed SF45 (p<0.05), while there was no significant difference in the DMI between treatments for multiparous cows (p>0.1). Both primiparous and multiparous cows in the TMR treatments had …
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CHARACTERIZATION OF SENSOR AND NON-SENSOR COW, HERD MANAGEMENT, AND ENVIRONMENTAL DATA AND USE OF MACHINE LEARNING ALGORITHMS FOR PREDICTION OF PREGNANCY IN DAIRY CATTLE
… sensors from -14 to 56 d after calving for 932 primiparous and 2,070 multiparous cows with a FS pregnancy outcome were available for analysis. Daily data were summarized as the average of seven periods of 4 to 7 d long from -14 to 56 d after calving and from -27 to -11, -10 to -3, -2 to - 1 d …
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Relationship of Osteopathic Manipulative Treatment During Labor and Delivery on Selected Maternal Morbidity Outcomes: A Randomized Controlled Trial
… group reduction of rates of episiotomies in the primiparous (P = .04) and marginal significance in the combined primiparous and multiparous population (P = .05). The percentage of episiotomies in the primiparous treatment group was 35.29% and 75% in the control group. The percentage of …
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A comparision of the level of knowledge regarding infant care and development among adolescent girls, adolescent mothers, and young adult mothers
… included 58 adolescent girls, ages 13 to 17, primiparous adolescent mothers, ages 13 to 17, and thirty-five primiparous young adult mothers, ages 21 to 25. Six null hypotheses were tested on the variables of the scores from the Infant Care and Development Inventory, number of sources of …
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Managing the lactating sow to stimulate lactation ovulation
… stimulate a lactation oestrus in multiparous and primiparous sows. Secondly, to determine the effect of these strategies on piglet growth, subsequent pregnancy rate, farrowing rate and litter size. The mechanisms investigated were focused on: reducing the suckling input to the sow through split …
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Proteomic Analysis of Mammary Epithelial Cell Development
… were also isolated from virgin, pregnant, and primiparous quiescent mice to compare the virgin state of the cell to the other two stages of development. These comparisons added to a previous dataset of primary isolated MEC and generated data that implied a surprising level of activity in virgin …
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The use of activity measures in combination with physiological factors as indicators of disease in dairy cattle
… induced Escherichia coli mastitis. A total of 24 primiparous and multiparous lactating dairy cows were challenged with E.coli 727 in one quarter. Of the 24 E.coli challenged animals, 12 were administered FM at 0.002 µg/45.5kg of body weight at the onset of clinical mastitis signs. The remaining …
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