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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 60 for “"Prepartum"”.
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Environmental and Physiological Aspects of Prepartum Behavior in the Sow
… and physiological factors involved in the prepartum behavior of sows. Eight of 12 penned sows offered 3 kg straw from a wire basket took substantial amounts of straw and used it to construct farrowing nests during the 24 hours preceding birth of first piglet. Most activity was directed at …
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Influence of prepartum diet type on cow performance and subsequent calf performance
… = 191) were utilized to evaluate the effects of prepartum diet type on cow and subsequent calf performance. Cows were blocked by BW and calving date into 16 pens and allotted to isocaloric, isonitrogenous dietary treatments: corn coproducts and ground cornstalks (COP) or ground hay (Hay). …
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The relationship between prepartum expectations about the transition to parenthood and actual postpartum experiences
This study questioned if women who held unrealistic positive expectations concerning the postpartum period, prenatally, would experience more depression and less positive affect than women whose prenatal expectations were more realistic in relation to their postpartum experience. The 135 married …
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Changes in Body Condition from Prepartum to Postpartum on Health and Reproduction in Dairy Cattle
… score, 72 Holstein-Friesian dairy cows at prepartum, compare lean, moderate, and over-conditioned categories, and relate any changes associated with the various time points with reproductive success by measuring body condition score, hematocrit, total white blood cell (WBC) differential, …
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Prepartum Energy Intake and Its Relationship to Periparturient Inflammation and Metabolic Dysfunction in Dairy Cows
Experiments were conducted to evaluate prepartum plane of energy intake, metabolism, and inflammation during the periparturient period. In experiment 1 housekeeping genes were evaluated for use with qPCR experiments in liver tissue. Ribosomal protein, S9 (RPS9) was most stable over dietary …
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Effects of prepartum supplement level and age of weaning on dam performance and developmental programming of male progeny
… study was conducted to determine the effects of prepartum supplement level and age of weaning on cow BW, BCS, milk production, reproduction, calf performance up to weaning, growth performance, feed efficiency, glucose and insulin concentration, and carcass characteristics of male offspring. …
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Parathyroid hormone, calcitonin, serum and milk minerals in the periparturient dairy cow
… (Ca) or Ca-supplemented ration for four weeks prepartum to determine the influence of age and prepartum Ca intake on hormonal control of peripartum Ca homeostasis. Jugular blood samples were taken on a fixed schedule from 21 days prepartum through 21 days postpartum for parathyroid hormone …
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Influence of prepartum nutrition on cow performance and subsequent calf performance, glucose tolerance, carcass characteristics, efficiency, and gene expression
… or offered no supplement 69 ± 9 d prepartum through calving. Cow BW and BCS change during late gestation were greater (P ≤ 0.02) for cows offered supplement. Supplementation had no effect (P ≥ 0.11) on calving date, calf birth or weaning BW, or pre-weaning ADG, milk production, AI …
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Effects of prepartum dietary energy and lipid supplementation on hepatic transcriptome profiles in dairy cows during the transition period
… transition dairy cows to evaluate the effects of prepartum overfeeding and lipid supplementation around parturition on hepatic mRNA expression using qPCR and microarray techniques. In the first experiment, we examined the expression of 44 genes associated with PPARα target genes including fatty …
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Evaluating the inclusion of alfalfa hay in diets fed to pregnant and non-lactating Holstein cows during the prepartum period
… pregnant, non-lactating dairy cows during the prepartum period consuming diets containing either grass hay (GH) or alfalfa hay (AH) with the inclusion of either calcium chloride (CL) or polyhalite mineral (PO). Eighty Holstein cows in their 2nd parity or greater were fed an experimental diet …
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Effects of prepartum plane of nutrition during mid- or late gestation on beef cow BW, BCS, blood hormone concentrations, and preimplantation embryo
… were to evaluate the potential effect of prepartum plane of nutrition during mid- or late gestation on cow BW, BCS, blood hormone concentrations, and preimplantation embryos. In Exp. 1, multiparous Angus and Angus x Simmental cows (n = 33; BW = 664 ± 78 kg) were fed diets formulated to …
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Rumen-protected Lysine fed to Holstein cows prepartum and in utero effects on their offspring during the first 56 days of life
… concentrations of amino acids (AA) in the prepartum diet for the cow’s health and performance. However, less is known about the potential in utero effects of particular AA on the early-life performance of calves. This experiment was conducted to determine the effects on dairy calves when …
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Effects of Prepartum Energy and Protein Density on Productivity and Influence of Dietary Iron on Copper Status of Holstein and Jersey Cattle
… 1.63 Mcal NEL/kg DM to determine the effects of prepartum energy density on productivity. Cows were assigned to diets 28 d before expected calving and received a similar diet 0 to 60 d postpartum. Prepartum DMI increased linearly as dietary energy density increased. Non-esterified fatty acids did …
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Effects of feeding moderate-energy high-forage diets with reduced DCAD for twenty-one or forty-two days prepartum on mineral homeostasis and postpartum performance
… cation-anion difference (DCAD) feeding in the prepartum diet would allow producers to utilize a one group dry cow pen; reducing social stress on cows while providing protection against hypocalcemia. High-fiber prepartum diets including wheat straw are inherently low in potassium and have been …
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Protein Nutrition of Dairy Cows During the Transition Period
Prepartum DMI, BCS, and BW did not differ significantly. Cows fed AMP postpartum tended (P = 0.10) to produce more 4% fat-corrected milk (FCM) than SB-fed cows (33.8 vs 31.8 kg/d). Gross efficiency (FCM/DMI) was greater (P < 0.05) for the cows fed AMP postpartum than for cows fed SB (1.88 vs 1.70). …
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Effects of parenting support groups on social support, marital support, and perceptions of infants
This study investigated the relationships among prepartum parenting support groups, social support, marital support, and maternal perceptions of infants. The subjects were 20 prospective first-time parents; nine of the 20 women attended the workshops with their husbands. Subjects completed measures …
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Pre- and postpartum nutritional effects on milk production, milk composition, calf weaning weight and postpartum reproductive performance of commercial beef cows
… of this study was to investigate the effect of prepartum and postpartum nutrition on milk production of commercial beef cows. Forty-three Angus or Angus X Holstein females, ranging in age from 2 to 6 yr, were randomly assigned by age and percentage Holstein within age to one of two prepartum …
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Dietary Energy Restriction During Late Gestation in Multiparous Holstein Cows
… cows were used to evaluate the effects of prepartum intake and postpartum health status on periparturient metabolism. Cows were fed a diet at either A or R intake from dry-off to parturition. At 4 days in milk (DIM), healthy cows were assigned to the control group or the ketosis induction …
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Determination of the Optimal Time in the Lactation Cycle to Start Feeding a Direct-Fed Cellulase/Xylanase Enzyme Mixture to Dairy Cows
… and 4) enzyme addition to the forage from wk 4 prepartum to wk 18 postpartum. Total mixed diets were 65% forage and 35% concentrate prepartum, and 50:50 forage: concentrate postpartum. Production of milk, solid-corrected milk, fat-corrected milk, and energy-corrected milk was higher for cows fed …
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Effects of essential amino acids supply and body condition prepartum on antioxidant, inflammation and mechanistic target of rapamycin pathways in adipose tissue during the periparturient period
… methionine (RPM) supply or body condition prepartum on pathways associated with mTOR and NFE2L2 pathways in subcutaneous adipose tissue (SAT) during the periparturient period, respectively. Sixty multiparous Holstein cows were assigned from –28 to 60 d relative to parturition to a basal …
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