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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

[en] THE SANTA CLARA FAMILY: A STUDY ON A RECEPTION EXPERIENCE / [pt] A FAMÍLIA SANTA CLARA: UM ESTUDO SOBRE UMA EXPERIÊNCIA DE ACOLHIMENTO

RENATO LUIZ FONSECA BRASCHER 01 August 2017 (has links)
[pt] O Santa Clara foi uma instituição de acolhimento infantil que funcionou de 1987 até 2010 e construiu, ao longo desses anos, uma forma particular de funcionamento, pois rompia com os modelos legalmente previstos. Seus membros se intitulavam como Família Santa Clara, e se organizavam como tal, tendo irmãos mais velhos e novos, tios e tias e um casal como pais. Eles abriram mão de suas atividades profissionais para acolher o desafio de estar à frente de uma instituição de acolhimento realmente singular. Iniciamos esta pesquisa visando a explorar as características que diferenciava o Santa Clara das demais instituições, entender o que era família para eles e como se organizavam. Para alcançar esses objetivos, tomamos por referência o ponto de vista do casal Cícero e Eliete, fundadores do projeto. Através de entrevistas semiestruturadas, analisamos seus conteúdos para melhor entender a proposta. Com isso, emergiram categorias como: liberdade, menorismo, educação, capacidade de sonhar e, claro, família. Essas categorias ampliaram para nós as discussões sobre o acolhimento e o cuidado com crianças que permanecem por muito tempo em instituições, além de nos mostrar como é importante ouvir e dar espaço para que as crianças e adolescentes sejam livres e responsáveis. Diante disso, discutimos brevemente os modelos de acolhimentos legais, problematizando o conceito de família. / [en] Santa Clara was a residential home for children that was open from 1987 to 2010 and built, over the course of those years, a particular way of working, as it broke with the legally established models. Its members called themselves the Santa Clara Family, and organized themselves as older brothers and sisters, uncles and aunts, and a couple as parents. They quit their professional activities in order to meet the challenge of being at the forefront of a truly unique institution. We started this research seeking to explore the characteristics that differentiated Santa Clara from other institutions and to understand what the concept of family was for them as well as how they organized themselves. In order to achieve these goals, we take as a reference the point of view of Cícero and Eliete, the founders of the project. Through semi-structured interviews, we analyze the information provided by them to better understand their proposal. Thereby, some categories emerged: freedom, minorism, education, ability to dream and, of course, family. These categories have broadened our discussions about fostering and caring for children in institutions for a long time, and have also shown us how important it is to listen and give space for children and adolescents to be free and responsible. Given this, we briefly discuss the legal fostering models, problematizing the concept of family.
32

Från ett tomt ark till en god demokratisk medborgare : En forskningsöversikt om hur samhällskunskapsläraren arbetar med demokratiuppdraget för att fostra elever till goda demokratiska medborgare / From a blank sheet to a good democratic citizen : A literature review about how the civic teachers work with citizenship education to educate pupils to be good democratic citizens

Gunnarsson, Elin, Gunnarsson, Olivia January 2022 (has links)
No description available.
33

[pt] JUVENTUDE EM ACOLHIMENTO: UM PERCURSO DA CONSTRUÇÃO EM PARCERIA DE UM LUGAR-MOMENTO DE CONVIVÊNCIA EDUCATIVA E INCLUSIVA PELO VIÉS DO DESIGN / [en] WELCOMING YOUTH: A JOURNEY OF PARTNERSHIP-BASED CONSTRUCTION OF A PLACE-MOMENT FOR EDUCATIONAL AND INCLUSIVE COEXISTENCE THROUGH THE LENS OF DESIGN

LUCAS BRAZIL SOUSA 11 December 2023 (has links)
[pt] Esta pesquisa tem como objetivo relatar o processo de um lugar-momento constituído a partir do desenho em parceria com jovens de diferentes locais sociais. Nasce da reflexão da necessidade de expandirmos o conceito de educação e vinculá-lo à inclusão, vinculado ao projeto Jovens do Presente antecipando futuros desejáveis da Vice-Reitoria de Extensão e Estratégia Pedagógica. Mostrando que lugares educativos podem ir além da escola e que também podem estar aliados à ela. O processo inicia-se online durante a pandemia da doença causada pelo SARS-CoV-2, denominada COVID-19, em que por meio de atividades buscava-se conhecer as demandas e sonhos e criar um lugar de troca e diálogo. Houve uma significativa mudança de dinâmica ao sermos recebidos no Centro Loyola de Fé e Cultura e termos um espaço para nos encontrarmos presencialmente. Passamos a reconhecer e apreender aquele local e pertencer a ele, assim foi nomeado pelos e pelas jovens o Grupo Acolhimento, composto por jovens de periferia, jovens da graduação da PUC-Rio, discentes da Pós-graduação em Design da mesma instituição, assim como docentes e funcionários. Ao longo de 2 anos o grupo passou por novos ciclos e teve a partir de métodos em design e do desenho de mapas complexos, a possibilidade de revisar o período vivido, apontar os pontos positivos, negativos e a serem aprimorados, criados. Assim planejaram e projetaram os próximos passos tendo como guia suas demandas, desejos e utopias para esse lugar-momento. A materialização desse processo se dá nas conquistas conseguidas pelos e pelas jovens ao longo desse período. Também se dá na visualização do sistema-ciclo vivenciado em parceria por todos e todas envolvidas no Grupo Acolhimento. Com isso foi possível apresentar novos caminhos em expansão para futuros possíveis. / [en] This research aims to report the process of a place-moment constituted from the design in partnership with young people from different social places. It is born from the reflection of the need to expand the concept of education and link it to inclusion, linked to the project Youth of the Present anticipating desirable futures of the Vice-Rectory of Extension and Pedagogical Strategy. Showing that educational places can go beyond school and that they can also be allied to it. The process begins online during the pandemic in which through activities it was sought to know the demands and dreams and create a place of exchange and dialogue. There was a significant change in dynamics when we were welcomed at the Loyola Center for Faith and Culture and had a space to meet in person. We began to recognize and apprehend that place and belong to it, so it was named bythe young people the Welcoming Group, composed of young people from the periphery, young people from PUC-Rio, students of the Graduate Program in Design of the same institution, as well as faculty and staff. Over 2 years the group went through new cycles and had from methods in design and the drawing of complex maps, the possibility to review the period lived, point out the positives,negatives and to be improved, created. Thus they planned and designed the next steps guided by their demands, desires and utopias for this place-moment. The materialization of this process takes place in the achievements achieved by the young women throughout this period. It also occurs in the visualization of the system-cycle experienced in partnership by all those involved in the Welcoming Group. With this it was possible to present new paths in expansion for possible futures.
34

Vägen till att fostra medarbetare : En kvalitativ begreppsanalys av uppförandekoder inom bilindustrin

Leindahl, Sofia, Sundin, Johan January 2024 (has links)
Studiens syfte har varit att få en djupare kunskap och förståelse för hur multinationella företags uppförandekoder fungerar som strategiska kunskapshanteringsverktyg för att fostra företagens medarbetare. Arbetets frågeställningar har varit; “Hur är företagens uppförandekoder utformade?”, “Hur framträder medarbetaren som intressent i företagens uppförandekoder?”, och “Vilken fostrande roll spelar uppförandekoderna som strategiska verktyg för kunskapshantering?”. Den teoretiska utgångspunkten för detta arbete har varit kunskapshanteringsteorin som bidragit med förståelse för uppförandekoderna som kunskapshanteringsverktyg och intressentteorin som bidragit med förståelse kring företagets relation till medarbetaren samt dess incitament till de val företagen gör. Det empiriska materialet bygger på fem stora multinationella bilföretags uppförandekoder och har analyserats genom en begreppsanalys där en modell har tagits fram för att förstå uppförandekodernas innehåll och uppbyggnad. Studiens resultat har visat på att uppförandekoderna i bilbranschen är mycket lika varandra och att de i allmänhet har ett mycket generellt innehåll, de stora skillnaderna rör den ton företagen har gentemot sina medarbetare i uppförandekoderna. I studien har vi även funnit att uppförandekoderna likaväl hade kunnat vara för företag inom andra multinationella branscher om man bortser från de namn och logotyper som finns i uppförandekoderna. Slutligen har det gått att konstatera att företagen främst fostrar sina medarbetare in i ett tankesätt som ska leda deras agerande istället för att fostra ett specifikt handlande. Detta för att skapa en självgående medarbetare oavsett ansvarsområde som denne har. / The purpose of this study has been to increase the knowledge and understanding of how Codes of Conduct of multinational companies works as a strategic knowledge management tool to foster the employees of the company. The research questions of this study have been; “How are the company's codes of conduct structured?”, “How does the employee appear as a stakeholder in the companies' codes of conduct?” and “Which fostering role does the code of conduct play as strategic tools for knowledge management?”. The theoretical foundation for this work has been the knowledge management theory, which has contributed to understanding the codes of conduct as a knowledge management tool, and the stakeholder theory, which has contributed to understanding the relationship between a company and its employees and the company's incentives for the choices the companies make. The empirical material is based on the codes of conduct of five major multinational automotive companies and has been analyzed through conceptual analysis, where a model was developed to understand the content and structure of the codes of conduct. The results of the study have shown a common generality where the codes of conduct in the automotive industry are very similar in content, the major differences concern the tone companies adopt towards their employees in the codes of conduct. Additionally, the study found that the codes of conduct could just as well have been applied to companies in other multinational industries if one disregards the company names and logos present in the codes of conduct. Finally, it has been observed that companies primarily foster their employees into a mindset that guides their actions rather than fostering specific actions. This is done to cultivate self-driven employees regardless of their area of responsibility.
35

Middle Years of Schooling: The pressures on rural adolescents to achieve academically

Demarte, Adele Louise, adele@rahna.com January 2007 (has links)
Within a climate of continual change this study offers insights into the academic pressures experienced by rural adolescents to achieve at school. In the often challenging transition from childhood to adulthood expectations from others place additional pressures on adolescents' lives. To better understand these pressures, I conducted a qualitative study of six students (ages nine to 15) and their teachers in the Middle Years of Schooling within rural Victoria, Australia. Students were studied prior to the Victorian Certificate of Education (VCE) in order to examine the pressures on students facing the Middle Years of Schooling. The study was carried out over a 6 month period using a Naturalistic Inquiry process with semi-structured interviews and participant observation. This allowed access into the participants' subjective insights. A Collective case study approach was employed to situate the information in its holistic environment and offer thick and information rich narratives depicting the experiences of these early adolescents. The case studies also involved examination of the school experiences of the early adolescents. Academic pressure was then broadly viewed in light of these experiences and recommendations offered. The findings from this research revealed that the early adolescents in the study all experienced degrees of academic pressure and demonstrated varied abilities to cope with these pressures. External support provided by parents, the school, teachers and peers tended to provide support more than fostering resilience.
36

From Japan to Sweden; Lean Product Development System in Cultural Contexts

Preechachanchai, Oraphin, Wangwacharakul, Promporn January 2011 (has links)
Irresistibly, Lean has been well-known among manufacturers around the world for quite sometimes due to Toyota success story of Toyota Production System (TPS) or so-called Lean manufacturing. Now that many organizations are going toward the concept of Lean enterprise, this thesis tries to study about Lean Product Development System (LPDS) which is a part it. Owing to the fact that LPDS is a socio-technical system originated from Japanese cultural background, to understand and should how LPDS is adopted in Swedish organizations become our main purpose. The thesis consists of three research questions- i.e. 1) what are pros and cons of LPDS, 2) what is Swedish style LPDS and how does it compare to the original Japanese one, and 3) should Swedish companies transform LPDS into their organizations; if yes, how. This study adopts a cultural framework to analyze and compare the Swedish LPDS and the Japanese one. The thesis can be separated into three main theoretical parts- i.e. LPDS, cultures, and change management. Two managers from two companies, one LPDS consultant, and one PhD student were interviewed for empirical data. Regarding to the first research question, both primary (interview) and secondary data are used; in order to analyze advantages and weaknesses of LPDS. Then, based on a literature review and empirical findings, Swedish LPDS principles were concluded and compared to the Japanese ones according to the second research question. Lastly, Swedish cultures, creativity perspective, and change management theories were deployed to provide managerial guidelines on how Swedes interpret and adopt LPDS in their organizations.   Accordingly, there are several pros and cons of LPDS (e.g. systematic decision making enhancement, transparency of information sharing, dynamic organizational learning) and they occur along the process of LPDS transformation into organizations. For cons, conclusion as of now is that most of LPDS weaknesses come from the method level, in which no one really knows what the real "Lean" is and leads to misinterpretation of principles. Owing to the fact that LPDS is a socio-technical system, it requires firms to adapt their strategies and cultures before adopting LPDS principles. Hence, LPDS needs to be interpreted and put into use case by case, depending on organizational characteristics. There are 14 principles of Swedish LPDS as concluded in this study. They are both similar and different from the Japanese original ones. The basic principles of LPDS, which are standardization, supplier involvement, continuous improvement, and visualization, are employed explicitly in both Japanese and Swedish LPDS. Moreover, both apply set-based concurrent engineering, front-loading, leveled product development process, and cross-functional team in NPD projects in their LPDS practices. The main differences are that Swedish LPDS focuses more on enhancing creativity than those of Japanese. Moreover, leadership style differs due to different cultural background. Besides, some other minor differences are also pointed out in this report. This leads to an answer to the last research question. Swedes should adopt LPDS in incremental manners to develop their organizations into the direction lead by LPDS, while preserving the creativity which is beneficial to product development processes. Finally, some guidelines of LPDS interpretation and adoption are also suggested based on change management theories and Swedish cultures.
37

Clio räddar världen : En annalys av argumentationen för historieämnets ställning i det svenska skolsystemet i Historielärarnas Förenings Årsskrift, 1942-2004

Hallenius, Mikael January 2011 (has links)
The aim of this thesis is to analyse and discuss the argumentation for theplace of History in the Swedish school system from the perspective ofeducation philosophy. The material that has been investigated is theYearbook of the Association of History Teachers (HLFÅ). In connectionto this, two questions have been asked: (1) What sort of argumentationhas there been in HLFÅ on the place of History in the Swedish schoolsystem from the time the Yearbook started to be published in 1942 until2004 when the Swedish parliament decided that the subject should beobligatory for all pupils in gymnasiet (senior high school)? (2) In whatway has education philosophy been taken into consideration in the argumentationon the place of History in HLFÅ between 1942 and 2004? Thebackground to these questions is partly that during the whole of the1900s it has been far from obvious what place History should have in theupper levels of the Swedish school system. Also, I have partly found itfruitful to study HLFÅ from the perspective of education philosophy.In chapter 1, we give a deeper presentation of HLFÅ. After that followsan overview of research into the teaching and learning of History (Historydidactics). The chapter ends with the three leitmotifs based on this research.I identify as leitmotifs areas that are identified clearly and repeatedlyin History didactics and that are seen as relevant to structure myanalysis of HLFÅ. The three leitmotifs are: (1) the relation between Historyand academia, (2) the social potential of History, (3) the use of Historyin the service of peace. These have structured the presentation in thetwo analysis chapters of the thesis (chapters 4 and 5).Chapter 2 discusses the thesis methodology, theoretical perspective andquestions. The methodology is an analysis of argumentation based onhermeneutics. The theoretical perspectives used in the study are educationphilosophies. My use of the theory builds on my reading of TheodorBrameld and Tomas Englund. The four education philosophies used toanalyse the argumentation are: (1) progressivism, (2) essentialism, (3)perennialism, (4) reconstructivism. In chapter 3, the background to thestudy is presented. The areas that are focused on are the changes in theSwedish school system during the 1900s, the subject of History in figures,and glimpses from the public debate on history in general and thesubject of History in Sweden. In chapter 4, we cover the period from1942-1970, and in chapter 5 we cover in a similar way the period from1971-2004. Both chapters begin with a chronological overview of theargumentation in the articles. After that, the material is analysed wherethe presentation is structured based on the three leitmotifs which arediscussed from an education philosophy perspective.Chapter 6 is a summarizing discussion. There we make it clear that progressivismis almost completely absent from the argumentation aroundthe place of History in Swedish schools in HLFÅ. Instead, the studyshows that it is a combination of essentialism and perennialism that dominatesthe way of maintaining the merits of History. Regarding reconstructivism,it is stated that it is subordinate to essentialism and perennialism.The study ends with suggestions for further research. Since theargumentation has consistently made the claim that History can givepeople a feeling of safety in their surroundings, understand their place inlife and create peace in the world, it is suggested that further analysisshould be made of similar material from the perspective of civil religion.A point of departure in this research is that secular societies partly takeover, and partly re-work, the rites and cosmologies of religious institutions,in order to create solidarity in modern societies. My hypothesis isthat this perspective would strengthen the thought that there are civilreligious practices on Swedish soil in connection with the educationworld.
38

Efeito do peso ao nascer e ingestão de colostro na mortalidade e desempenho de leitões após a uniformização em fêmeas de diferentes ordens de parição / Effect of birth weight and colostrum intake on mortality and performance of piglets after cross-fostering in sows of different parities

Ferrari, Cristina Vicente January 2013 (has links)
O objetivo do estudo foi avaliar o efeito do peso ao nascer e ingestão de colostro na mortalidade e desempenho dos leitões levando em conta a ordem de parto das mães biológicas e adotivas. A ingestão de colostro do nascimento até as 24 horas de vida foi estimada em 300 leitões de primíparas e 300 leitões de multíparas através de pesagem ao nascimento e as 24 h de vida. Estes leitões foram uniformizados em 25 primíparas e 25 multíparas com 25,9 ± 0,09 h após o nascimento. A concentração de imunoglobulina G (IgG) no soro foi determinada nas fêmeas após o final do parto e nos leitões antes da uniformização (24 h após o parto), aos 10 e 20 dias de vida. Leitões de primíparas consumiram menos colostro (P= 0,0027) que leitões de multíparas, mas a concentração de IgG no soro dos leitões as 24 h de vida foi semelhante (P> 0,05). O risco de mortalidade até 42 dias de vida não foi afetado pela ordem de parto das mães biológicas ou adotivas (P> 0,05). Maior chance de mortalidade foi observada em leitões de baixo (LW - 1.10–1.2 kg) e intermediário (IW - >1.2–1.3 kg) peso ao nascer que consumiram ≤150 g de colostro comparados a leitões pesados (HW - >1.3 kg) que consumiram >250 g de colostro. Leitões HW tiveram maior peso aos 20, 28 e 42 dias de vida (P< 0,05) que leitões LW, mesmo quando consumiram a mesma quantidade de colostro. A ordem de parto da mãe biológica não teve efeito no desempenho dos leitões até 42 dias de vida (P>0,05). Leitões amamentados por multíparas tiveram maior peso que aqueles amamentados por primíparas. Leitões que morreram até 42 dias de vida tinham menor (P< 0,05) peso ao nascer, ingestão de colostro e IgG no soro as 24 h de vida comparados com leitões que sobreviveram, e estes menores valores foram também observados em leitões com baixo desempenho (<9.5 kg) comparados com leitões de alto desempenho (>9.5 kg). Não houve diferença entre IgG no soro aos 10 e 20 dias de vida (P= 0,3461) entre leitões com baixo e alto desempenho. Em conclusão, leitões LW são mais dependentes da ingestão de colostro que leitões HW para assegurar a sua sobrevivência e melhor desempenho até os 42 dias de vida. A sobrevivência e o crescimento não são afetados pela ordem de parto das mães biológicas, enquanto que leitões amamentados por fêmeas multíparas possuem melhor desenvolvimento que aqueles amamentados por fêmeas primíparas. / The objective of this study was to evaluate the effect of the birth weight and colostrum intake on mortality and growth performance of piglets until 42 days of age, also taking into account the parity order of the biological and foster dams. Colostrum intake from birth to 24 h after birth was estimated in 300 piglets each from primiparous and multiparous dams by weighing at birth and 24 h of age. These piglets were then cross-fostered in 25 primiparous and 25 multiparous sows at 25.9 ± 0.09 h after farrowing. The concentration of serum immunoglobulin G (IgG) was determined in the sows after the end of farrowing and in the piglets before cross-fostering (24 h after farrowing), at 10 and 20 days of age. Piglets from primiparous consumed less colostrum (P< 0.003) than piglets from multiparous dams, but their serum IgG concentrations at 24 h after birth were similar (P> 0.05). The risk of mortality until 42 days of age was not affected by the parity order of biological or foster dams (P> 0.05). Higher odds of mortality were observed in piglets of low (LW - 1.10–1.2 kg) and intermediate (IW - >1.2–1.3 kg) birth weight that consumed ≤150 g of colostrum compared to heavy piglets (HW - >1.3 kg) that consumed >250 g colostrum. HW piglets at birth had higher weight at 20, 28 and 42 days of age (P< 0.05) than LW piglets at birth, even when consuming the same amount of colostrum. The parity order of the biological dam had no effect on the performance of piglets until 42 days of age (P> 0.05). Piglets suckled by multiparous foster dams showed higher weight than those suckled by primiparous sows. Piglets that died before 42 days of age had lower (P< 0.05) birth weight, colostrum intake and serum IgG at 24 h after birth compared to surviving piglets, and these lower values were also observed in piglets with low (<9.5 kg) performance compared to high (>9.5 kg) performance piglets. There were no differences in serum IgG concentrations at 10 and 20 days of age (P= 0.346) between high and low performance piglets. In conclusion, LW piglets are more dependent on colostrum intake than HW piglets to assure higher survival and better development up to 42 days of age. Survival and growth are not affected by the parity order of the biological dam, whereas piglets suckled by multiparous sows have better development than those suckled by primiparous sows.
39

Efeito do peso ao nascer e ingestão de colostro na mortalidade e desempenho de leitões após a uniformização em fêmeas de diferentes ordens de parição / Effect of birth weight and colostrum intake on mortality and performance of piglets after cross-fostering in sows of different parities

Ferrari, Cristina Vicente January 2013 (has links)
O objetivo do estudo foi avaliar o efeito do peso ao nascer e ingestão de colostro na mortalidade e desempenho dos leitões levando em conta a ordem de parto das mães biológicas e adotivas. A ingestão de colostro do nascimento até as 24 horas de vida foi estimada em 300 leitões de primíparas e 300 leitões de multíparas através de pesagem ao nascimento e as 24 h de vida. Estes leitões foram uniformizados em 25 primíparas e 25 multíparas com 25,9 ± 0,09 h após o nascimento. A concentração de imunoglobulina G (IgG) no soro foi determinada nas fêmeas após o final do parto e nos leitões antes da uniformização (24 h após o parto), aos 10 e 20 dias de vida. Leitões de primíparas consumiram menos colostro (P= 0,0027) que leitões de multíparas, mas a concentração de IgG no soro dos leitões as 24 h de vida foi semelhante (P> 0,05). O risco de mortalidade até 42 dias de vida não foi afetado pela ordem de parto das mães biológicas ou adotivas (P> 0,05). Maior chance de mortalidade foi observada em leitões de baixo (LW - 1.10–1.2 kg) e intermediário (IW - >1.2–1.3 kg) peso ao nascer que consumiram ≤150 g de colostro comparados a leitões pesados (HW - >1.3 kg) que consumiram >250 g de colostro. Leitões HW tiveram maior peso aos 20, 28 e 42 dias de vida (P< 0,05) que leitões LW, mesmo quando consumiram a mesma quantidade de colostro. A ordem de parto da mãe biológica não teve efeito no desempenho dos leitões até 42 dias de vida (P>0,05). Leitões amamentados por multíparas tiveram maior peso que aqueles amamentados por primíparas. Leitões que morreram até 42 dias de vida tinham menor (P< 0,05) peso ao nascer, ingestão de colostro e IgG no soro as 24 h de vida comparados com leitões que sobreviveram, e estes menores valores foram também observados em leitões com baixo desempenho (<9.5 kg) comparados com leitões de alto desempenho (>9.5 kg). Não houve diferença entre IgG no soro aos 10 e 20 dias de vida (P= 0,3461) entre leitões com baixo e alto desempenho. Em conclusão, leitões LW são mais dependentes da ingestão de colostro que leitões HW para assegurar a sua sobrevivência e melhor desempenho até os 42 dias de vida. A sobrevivência e o crescimento não são afetados pela ordem de parto das mães biológicas, enquanto que leitões amamentados por fêmeas multíparas possuem melhor desenvolvimento que aqueles amamentados por fêmeas primíparas. / The objective of this study was to evaluate the effect of the birth weight and colostrum intake on mortality and growth performance of piglets until 42 days of age, also taking into account the parity order of the biological and foster dams. Colostrum intake from birth to 24 h after birth was estimated in 300 piglets each from primiparous and multiparous dams by weighing at birth and 24 h of age. These piglets were then cross-fostered in 25 primiparous and 25 multiparous sows at 25.9 ± 0.09 h after farrowing. The concentration of serum immunoglobulin G (IgG) was determined in the sows after the end of farrowing and in the piglets before cross-fostering (24 h after farrowing), at 10 and 20 days of age. Piglets from primiparous consumed less colostrum (P< 0.003) than piglets from multiparous dams, but their serum IgG concentrations at 24 h after birth were similar (P> 0.05). The risk of mortality until 42 days of age was not affected by the parity order of biological or foster dams (P> 0.05). Higher odds of mortality were observed in piglets of low (LW - 1.10–1.2 kg) and intermediate (IW - >1.2–1.3 kg) birth weight that consumed ≤150 g of colostrum compared to heavy piglets (HW - >1.3 kg) that consumed >250 g colostrum. HW piglets at birth had higher weight at 20, 28 and 42 days of age (P< 0.05) than LW piglets at birth, even when consuming the same amount of colostrum. The parity order of the biological dam had no effect on the performance of piglets until 42 days of age (P> 0.05). Piglets suckled by multiparous foster dams showed higher weight than those suckled by primiparous sows. Piglets that died before 42 days of age had lower (P< 0.05) birth weight, colostrum intake and serum IgG at 24 h after birth compared to surviving piglets, and these lower values were also observed in piglets with low (<9.5 kg) performance compared to high (>9.5 kg) performance piglets. There were no differences in serum IgG concentrations at 10 and 20 days of age (P= 0.346) between high and low performance piglets. In conclusion, LW piglets are more dependent on colostrum intake than HW piglets to assure higher survival and better development up to 42 days of age. Survival and growth are not affected by the parity order of the biological dam, whereas piglets suckled by multiparous sows have better development than those suckled by primiparous sows.
40

Efeito do peso ao nascer e ingestão de colostro na mortalidade e desempenho de leitões após a uniformização em fêmeas de diferentes ordens de parição / Effect of birth weight and colostrum intake on mortality and performance of piglets after cross-fostering in sows of different parities

Ferrari, Cristina Vicente January 2013 (has links)
O objetivo do estudo foi avaliar o efeito do peso ao nascer e ingestão de colostro na mortalidade e desempenho dos leitões levando em conta a ordem de parto das mães biológicas e adotivas. A ingestão de colostro do nascimento até as 24 horas de vida foi estimada em 300 leitões de primíparas e 300 leitões de multíparas através de pesagem ao nascimento e as 24 h de vida. Estes leitões foram uniformizados em 25 primíparas e 25 multíparas com 25,9 ± 0,09 h após o nascimento. A concentração de imunoglobulina G (IgG) no soro foi determinada nas fêmeas após o final do parto e nos leitões antes da uniformização (24 h após o parto), aos 10 e 20 dias de vida. Leitões de primíparas consumiram menos colostro (P= 0,0027) que leitões de multíparas, mas a concentração de IgG no soro dos leitões as 24 h de vida foi semelhante (P> 0,05). O risco de mortalidade até 42 dias de vida não foi afetado pela ordem de parto das mães biológicas ou adotivas (P> 0,05). Maior chance de mortalidade foi observada em leitões de baixo (LW - 1.10–1.2 kg) e intermediário (IW - >1.2–1.3 kg) peso ao nascer que consumiram ≤150 g de colostro comparados a leitões pesados (HW - >1.3 kg) que consumiram >250 g de colostro. Leitões HW tiveram maior peso aos 20, 28 e 42 dias de vida (P< 0,05) que leitões LW, mesmo quando consumiram a mesma quantidade de colostro. A ordem de parto da mãe biológica não teve efeito no desempenho dos leitões até 42 dias de vida (P>0,05). Leitões amamentados por multíparas tiveram maior peso que aqueles amamentados por primíparas. Leitões que morreram até 42 dias de vida tinham menor (P< 0,05) peso ao nascer, ingestão de colostro e IgG no soro as 24 h de vida comparados com leitões que sobreviveram, e estes menores valores foram também observados em leitões com baixo desempenho (<9.5 kg) comparados com leitões de alto desempenho (>9.5 kg). Não houve diferença entre IgG no soro aos 10 e 20 dias de vida (P= 0,3461) entre leitões com baixo e alto desempenho. Em conclusão, leitões LW são mais dependentes da ingestão de colostro que leitões HW para assegurar a sua sobrevivência e melhor desempenho até os 42 dias de vida. A sobrevivência e o crescimento não são afetados pela ordem de parto das mães biológicas, enquanto que leitões amamentados por fêmeas multíparas possuem melhor desenvolvimento que aqueles amamentados por fêmeas primíparas. / The objective of this study was to evaluate the effect of the birth weight and colostrum intake on mortality and growth performance of piglets until 42 days of age, also taking into account the parity order of the biological and foster dams. Colostrum intake from birth to 24 h after birth was estimated in 300 piglets each from primiparous and multiparous dams by weighing at birth and 24 h of age. These piglets were then cross-fostered in 25 primiparous and 25 multiparous sows at 25.9 ± 0.09 h after farrowing. The concentration of serum immunoglobulin G (IgG) was determined in the sows after the end of farrowing and in the piglets before cross-fostering (24 h after farrowing), at 10 and 20 days of age. Piglets from primiparous consumed less colostrum (P< 0.003) than piglets from multiparous dams, but their serum IgG concentrations at 24 h after birth were similar (P> 0.05). The risk of mortality until 42 days of age was not affected by the parity order of biological or foster dams (P> 0.05). Higher odds of mortality were observed in piglets of low (LW - 1.10–1.2 kg) and intermediate (IW - >1.2–1.3 kg) birth weight that consumed ≤150 g of colostrum compared to heavy piglets (HW - >1.3 kg) that consumed >250 g colostrum. HW piglets at birth had higher weight at 20, 28 and 42 days of age (P< 0.05) than LW piglets at birth, even when consuming the same amount of colostrum. The parity order of the biological dam had no effect on the performance of piglets until 42 days of age (P> 0.05). Piglets suckled by multiparous foster dams showed higher weight than those suckled by primiparous sows. Piglets that died before 42 days of age had lower (P< 0.05) birth weight, colostrum intake and serum IgG at 24 h after birth compared to surviving piglets, and these lower values were also observed in piglets with low (<9.5 kg) performance compared to high (>9.5 kg) performance piglets. There were no differences in serum IgG concentrations at 10 and 20 days of age (P= 0.346) between high and low performance piglets. In conclusion, LW piglets are more dependent on colostrum intake than HW piglets to assure higher survival and better development up to 42 days of age. Survival and growth are not affected by the parity order of the biological dam, whereas piglets suckled by multiparous sows have better development than those suckled by primiparous sows.

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