Global ETD Search
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 166 for “"transition period"”.
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Protein Nutrition of Dairy Cows During the Transition Period
… not differ in either the prepartum or postpartum periods. Feeding higher amounts of MP or feeding AMP in the prepartum period did not improve lactation performance. However, gross efficiency was improved by supplementation of AMP during lactation.
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The rumen microbial ecosystem during the transition period in dairy cows
Seven rumen cannulated Holstein cows were used from 3 weeks prepartum to 4 weeks postpartum to determine the relative abundance of 7 different species of ruminal microorganisms. The prepartum diet was based on corn silage. In the postpartum, diet included ground corn, grain by-products, and alfalfa …
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Relationships among nutritional regimen, metabolic disorders, reproduction, and production in dairy cows during the transition period
… fed during the far-off (FO) or close-up (CU) dry periods. Cow was the experimental unit. All analyses were carried out using SAS 9.2 (SAS Institute, Inc.). The Cox proportional hazard model revealed a significant difference in DTC between HE and CE during the CU period (median = 167 and 157 d; …
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Effects of nutrition, disease, and body condition score during the transition period on dairy cattle liver gene expression
… growth, energy and immune responses in transitional cows supplemented with saturated fatty acids or polyunsaturated fatty acids (PUFA). Preliminary findings revealed that both diets affected the LCFA profile of hepatic LP and TAG. However, saturated fatty acids were more effective than …
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Endocannabinoid and lipid metabolism genes network analysis in adipose and liver tissue of dairy cows during the transition period
During the transition period dairy cows are exposed to enormous metabolic changes. These changes could affect the overall health and production. Two experiments were conducted on transition cows to evaluate the 1) effects of body condition score (BCS) on the endocannabinoid system and lipid …
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Effects of prepartum dietary energy and lipid supplementation on hepatic transcriptome profiles in dairy cows during the transition period
The transition period in dairy cows is the most crucial time for both cow health and dairy management. Three experiments were conducted on transition dairy cows to evaluate the effects of prepartum overfeeding and lipid supplementation around parturition on hepatic mRNA expression using qPCR and …
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IMPORTANCE OF SUPPLYING DAIRY COWS WITH ESSENTIAL FATTY ACIDS (EFA) AND CONJUGATED LINOLEIC ACIDS (CLA) DURING THE TRANSITION PERIOD ON METABOLISM AND HEALTH
… coconut oil (CTRL, n = 8, 38 & 76 g/d during dry period and lactation, respectively) or a mixture of EFA (Linseed + safflower oil) and CLA (Lutalin, BASF) (EFA+CLA, n = 8, 60 and 120 g/d during dry period and lactation, respectively). An untargeted shotgun proteomics approach based on liquid …
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Blood and liver biomarkers and transcriptome alterations during the transition period reveal beneficial effects of rumen-protected methionine supplementation on health status and performance in dairy cows
The early postpartal period is characterized by marked changes in hormonal, metabolic, and immune/stress-like conditions all of which may contribute to regulating dry matter intake (DMI) and the supply of nutrients to mammary gland. Peripartal cows are likely to undergo a negative methionine (Met) …
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The Association Between Non-Esterified Fatty Acids And Beta-Hydroxybutyrate During The Transition Period In Holstein Dairy Cows And Negative Downstream Outcomes - Disease Incidence, Milk Production And Reproduction
… acquired from this research will help improve transition cow monitoring and management strategies.
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Foreign Policy Mismanagement During American Presidential Transitions
… to the problems associated with presidential transitions. The American presidential transition period is accompanied by three limitations that threaten the effectiveness of presidential authority. First, presidential authority is unclear in the ambiguity of the transition period. Second, new …
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The experience of individuals who transitioned from teacher to assistant-principal
<p>The transition from teacher to assistant-principal is complex. The purpose of this study was to better understand the phenomenon of transition to leadership roles in high schools by investigating the experiences of four teachers who moved from teacher to assistant-principal positions in suburban …
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The First Year of Marriage: Dyadic Adjustment and Intimacy
… of marital adjustment and intimacy over the transition period from engagement through the first year of marriage. A cross-sequential data collection strategy was used to measure change in these processes over time. The data were also analyzed for gender differences.
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The utilization of phytate-phosphorus by the transition dairy cow
… in rumen fluid was analyzed during the transition period of two heifers by in vitro and in situ incubations. Apparent digestibility (AD) of P during the transition period was measured and P balance determined. The study included three periods, a prepartum period (P1), including the 2 wk …
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Regulation of glucose metabolism in dairy cattle
… challenge of improving metabolism during this period is being addressed by nutritional management with the possibility of the addition of supplements. The use of Ca-propionate as a supplement did not affect glucose metabolism in transition cows. The data revealed that insulin sensitivity was …
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Interest mediation and democratic transitions : NEDLAC and South Africa's experiment in Corporatism
… Nelson Mandela in 1990 marked the beginning of a transition process during which South Africa would finally move from an authoritarian apartheid state to a democratic state that respected and upheld the basic principles of human rights. The field of ""transition politics"" is huge. It necessarily …
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Assessment of disease suppression in organic transitional cropping systems
… rules require that it goes through a three-year transition period prior to receiving certification in order to minimize the effects of previously applied synthetic pesticides or fertilizers and to improve “soil health”. Methods for enhancing soil health often include applications of organic …
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Prediction of the spring transition and related sea-surface temperature anomalies
… ocean temperature anomalies during the spring transition period was tested. If the transition between the winter and summer regimes occurred earlier (later) than normal, the seasonal heating was expected to have been accumulated in a shallow (deep) layer, and would have tended to produce a …
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The role of public opinion in Africa's third term bids
… third term bids that have occurred in the post-transition period in Africa. We focus on three public opinion variables that we believe to be critical in explaining variation across these outcomes: popular opposition to authoritarian rule, presidential popularity, and popular trust in the …
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