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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.
181

Berufliche Sozialisation und Rollenverständnis der Geschlechter in der Gegenwart dargestellt am Beispiel von Frauen in der Schutzpolizei /

Swoboda-Riecken, Susanna. Unknown Date (has links) (PDF)
Universiẗat, Diss., 2002--Kiel.
182

Studies on the ecology of European Peristenus spp. (Hymenoptera: Braconidae) and their potential for the biological control of Lygus spp. (Hemiptera: Miridae) in Canada

Haye, Tim. Unknown Date (has links) (PDF)
University, Diss., 2004--Kiel.
183

Die Bestimmung des Herzminutenvolumens mittels Doppler-Echokardiographie im Vergleich zur Thermodilutionsmethode an Kälbern der Rasse Holstein Friesian

Holzhauer, Patricia Daniela. Unknown Date (has links) (PDF)
Tierärztliche Hochsch., Diss., 2005--Hannover.
184

Untersuchungen zum peripartalen Festliegen von Kühen der Rassen Fleckvieh and Holstein-Friesian

Lesch, Stephanie. January 1900 (has links)
Freie Universiẗat, Diss., 2005--Berlin. / Dateiformat: zip, Dateien im PDF-Format. Erscheinungsjahr an der Haupttitelstelle: 2004.
185

Germaine de Staël und George Sand : Eine inhaltliche untersuchung über den Einfluss ihrer Frauenromane auf Zeitgenössische deutsche Autorinnen /

Wortmann-Lacouronne, Virginie. January 1997 (has links)
Diss.--Mannheim--Universität Mannheim, 1997.
186

Užitkovost a plodnost pastevně odchovaných jalovic holštýnského skotu / The performance and fertility of pasture reared Holstein heifers

NEJEDLÁ, Alice January 2013 (has links)
The aim of this thesis was to evaluate the parameters of the milk performance, reproduction indicators and health of Holstein cows that were raised on pasture. The data were obtained from 50 pure bred animals and its crossbreeds which had been grazed and the control group which was represented by 20 heifer which had been reared in stable. The evaluation of parameters was set on the first standardized lactation in the range of 240 to 305 days. The first lactation milk performance traits were: quantity of milk (kg), quantity and content of fat (kg; %), quantity and content of protein (kg; %). The fertility traits were: length of service period (days), insemination interval (days), age at first calving (days).
187

Vyhodnocení ukazatelů užitkovosti a dlouhověkosti u stáda dojnic červeného holštýnského skotu / Evaluation of indicators of performance and longevity in dairy herd of red Holstein cattle

VONDRA, Vojtěch January 2014 (has links)
The aim of the study was to evaluate the effects selected for milk production, fertility and longevity in dairy herd of Holstein cattle (RED). Data processing for the thesis was collected from cows that ended the lactation period from 1 October 2012 to 30 September 2013, ie during the previous inspection year. From the reports were selected information on lactation, genotype, milk yield, meantime, service period, due to retirement, days of lactation and age at first calving for each cow separately. By tracking and a total of 274 cows Holstein cattle (RED) genotypes R1 (R88% or more), R2 (R76% - 87%) and R3 (R51% - 75%). There were statistically significant differences (P <0,05) milk yield of dairy cows with genotype R3, divided by lactation. When the third lactation had the highest yields (8,520 kg of milk). In the thesis was relationship between age at first calving and lifetime performance (rxy = -0,21). The relationship between age at first calving and age at retirement wasn´t demonstrated. Other differences were not statistically significant (P>0.05). The highest yield of dairy cows in the investigated group reached the second lactation (7571 kg of milk). The average time of insemination interval was 71 days, best service period amounted to dairy cows on the third and higher lactation (107 days). The average length of the interim reporting for dairy herd does not exceed the limit of 400 days. Shortest age at first calving cows reached genotype R1 and R2 (777 days). Longevity culled dairy cows in lactation was 2,8.
188

Proposta de avaliação da condição corporal em vacas holandesas e nelores

Maciel, Ana Beatriz de Barros [UNESP] 13 February 2006 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:27:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-02-13Bitstream added on 2014-06-13T20:36:08Z : No. of bitstreams: 1 maciel_abb_me_botfmvz.pdf: 314242 bytes, checksum: 995eff69a174817c4a4cabd2909349c8 (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Universidade Estadual Paulista (UNESP) / O objetivo deste estudo foi verificar a relação entre a espessura da camada de gordura subcutânea (ECGS) avaliada por meio de ultra-som (US) e o índice de condição corporal (ICC) em vacas das raças Holandesa e Nelore. Foram utilizadas 78 vacas holandesas e 73 nelores. Foi criado um sistema de ICC com visualização de três pontos da garupa, entre o osso sacro e a tuberosidade coxal, entre tuberosidade coxal e isquiática e na região de inserção da cauda e tuberosidade isquiática com escala de 1 (extremamente magra) a 5 (extremamente gorda) com intervalos de 0,25 pontos. Os exames de US para ECGS foram realizados na garupa. Para estimar as correlações entre ECGS e ICC eliminaram-se as vacas com ECGS < 2 mm ou ECGS > 7 mm. Uma análise preliminar dos dados não detectou correlação entre ECGS e ICC na raça Holandesa com baixo ICC. Foi feita uma regressão de Patamar (GLM do SAS) para fixar o ponto a partir do qual se aplicaria a correlação. Para estimar correlação entre ECGS e ICC e entre avaliadores aplicou-se o programa CORR do SAS. Verificou-se correlação entre ECGS e ICC positiva (P<0,001), de 0,79 (n = 19) nas holandesas e de 0,45 (n = 63) nas nelores. Foi detectada correlação entre avaliadores (P<0,001), na raça Holandesa entre 0,79 e 0,84 (n = 75) e na raça Nelore de 0,52 (n = 72). Este sistema proposto de avaliação do ICC visualizando apenas a garupa da vaca apresentou repetibilidade entre avaliadores e também alta correlação com ECGS por US, mostrando refletir adequadamente a energia armazenada como gordura subcutânea, em vacas holandesas e nelores.
189

Proposta de avaliação da condição corporal em vacas holandesas e nelores /

Maciel, Ana Beatriz de Barros. January 2006 (has links)
Orientador: José Luiz Moraes Vasconcelos / Banca: Pietro Sampaio Baruselli / Banca: Mário De Beni Arrigoni / Abstract: The aim of this study was to verify the relationship between subcutaneous fat thickness (SFT) measured by ultrasound (US) and body condition score (BCS) in Holstein and Nellore cows. 78 Holstein and 73 Nellore cows were used. A BCS system was developed based on the visualization of three points of the rump: between sacrum and hooks, between hooks and pins, tail head and pins area, using a 1 (extremely thin) to 5 (extremely fat) scale with intervals of 0.25 points. US exams to SFT measurements were made on the rump (P8). Cows with SFT < 2 mm or SFT > 7 mm were not considered, to estimate the correlations between SFT and BCS. A first data analysis did not detect correlation between SFT and BCS in low BCS Holstein cows. A Patamar regression was made (GLM of SAS) to fix the point in which the correlation between SFT and BCS would be detected. Therefore, for Holstein data, cows with BCS < 3.17, point obtained from Patamar regression, were not considered. The CORR program of SAS was used to estimate correlation between SFT and BCS which was positive (P<0.001), in Holstein (0.79) (n = 19) and Nellore cows (0.45) (n = 63). In Holstein cows a correlation between assessors (P<0.001) varying from 0.79 to 0.84 (n=75), was detected whereas in Nellore cows it was 0.52 (n=72). This proposed BCS system, visualizing only the cow rump presents good repeatability between assessors and also high correlation with SFT, properly presenting energy stored as subcutaneous fat in Holstein and Nellore cows. / Resumo: O objetivo deste estudo foi verificar a relação entre a espessura da camada de gordura subcutânea (ECGS) avaliada por meio de ultra-som (US) e o índice de condição corporal (ICC) em vacas das raças Holandesa e Nelore. Foram utilizadas 78 vacas holandesas e 73 nelores. Foi criado um sistema de ICC com visualização de três pontos da garupa, entre o osso sacro e a tuberosidade coxal, entre tuberosidade coxal e isquiática e na região de inserção da cauda e tuberosidade isquiática com escala de 1 (extremamente magra) a 5 (extremamente gorda) com intervalos de 0,25 pontos. Os exames de US para ECGS foram realizados na garupa. Para estimar as correlações entre ECGS e ICC eliminaram-se as vacas com ECGS < 2 mm ou ECGS > 7 mm. Uma análise preliminar dos dados não detectou correlação entre ECGS e ICC na raça Holandesa com baixo ICC. Foi feita uma regressão de Patamar (GLM do SAS) para fixar o ponto a partir do qual se aplicaria a correlação. Para estimar correlação entre ECGS e ICC e entre avaliadores aplicou-se o programa CORR do SAS. Verificou-se correlação entre ECGS e ICC positiva (P<0,001), de 0,79 (n = 19) nas holandesas e de 0,45 (n = 63) nas nelores. Foi detectada correlação entre avaliadores (P<0,001), na raça Holandesa entre 0,79 e 0,84 (n = 75) e na raça Nelore de 0,52 (n = 72). Este sistema proposto de avaliação do ICC visualizando apenas a garupa da vaca apresentou repetibilidade entre avaliadores e também alta correlação com ECGS por US, mostrando refletir adequadamente a energia armazenada como gordura subcutânea, em vacas holandesas e nelores. / Mestre
190

Analýza užitkovosti a plodnosti stáda holštýnského skotu / Analysis of efficiency and fertility herd of holstein cattle

KORYNTOVÁ, Karolína January 2007 (has links)
Problems of efficiency and fertility dairycows of holstein cattel herd in warious types of lairage.

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