Dissertations / Theses on the topic 'Legehenne'
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Duss, Claudia Inge. "Untersuchungen zum Einfluss von experimentellen Ascaridia-galli-Infektionen auf das Verhalten von Legehennen." Wettenberg : VVB Laufersweiler, 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976066394.
Full textRudolph, Birgit. "Untersuchungen zu Enterococcus faecalis als möglicher Faktor zur Entstehung der amyloiden Arthropathie der braunen Legehenne." [S.l. : s.n.], 2004. http://www.diss.fu-berlin.de/2004/290/index.html.
Full textMahboub, Hamada Dahy Hussein. "Feather pecking, body condition and outdoor use of two genotypes of laying hens housed in different free range systems." [S.l. : s.n.], 2004. http://dol.uni-leipzig.de/pub/2004-9.
Full textHomann, Tomas. "Untersuchungen zur Resistenz von LSL Hühnern gegenüber experimentellen Ascaridia Galli-Infektionen." Giessen : VVB Laufersweiler, 2007. http://geb.uni-giessen.de/geb/volltexte/2007/4729/index.html.
Full textHäusler, Kirsten. "Untersuchungen zur Motivation zum Federfressen bei Legehennen." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:100-opus-2177.
Full textKruschwitz, Anja. "Evaluation des Legeverhaltens bei Legehennen und Untersuchungen zur Nestwahl unter Berücksichtigung der Motivation für den Nestzugang zu arbeiten." München Verl. Dr. Hut, 2008. http://d-nb.info/989622665/04.
Full textThum, Cornelia. "Verhalten und Raumnutzung von Legehennen in Kleingruppenhaltungen gemäss der deutschen Tierschutz-Nutztierhaltungsverordnung sowie der Einfluss von Tageszeit, Besatzdichte, Rasse und Gruppengrösse auf diese Parameter." Berlin mbv, Mensch-und-Buch-Verl, 2009. http://d-nb.info/1000286770/04.
Full textKäser, Cornelia. "Untersuchung verschiedener in Sachsen angewandter Impfstrategien zur Vorbeugung der Salmonella Enteritidis-Infektion in Legehennenbeständen." Doctoral thesis, Universitätsbibliothek Leipzig, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-96800.
Full textWahlström, Annsofie. "Diet x hybrid interactions in large groups of laying hens /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5728-9.pdf.
Full textFröhlich, Brigitte, Roland Küblböck, Ulf Müller, and Ralf Fischer. "Kupierverzicht bei Legehennen: Praxiserprobung zum Verzicht auf das Kupieren von Schnäbeln bei Legehennen." Sächsisches Landesamt für Umwelt, Landwirtschaft und Geologie, 2017. https://slub.qucosa.de/id/qucosa%3A16186.
Full textLippmann, Jens. "Emissionen aus Haltungssystemen für Legehennen." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-152917.
Full textRanck, Frederik. "Mycoplasma synoviae assoziierte Eischalenpoldefekte bei Legehennen." Doctoral thesis, Universitätsbibliothek Leipzig, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-70117.
Full textHens laying eggs with egg-pole shell defects (EPS) were examined in a clinical prospective study. 86 hens with EPS and 72 hens without EPS from 3 flocks were selected for this study. All examined flocks showed a good laying performance, although laying many eggs off quality class B. The rate was over 5 percent of all laid eggs, most of them were dirty eggs. There was a significant correlation between EPS-eggs and dirty eggs, although between EPS-eggs and broken- and thin shelled eggs. This phenomenon could be explained by the decreased eggshell strength of the EPS-eggs. The selected hens with EPS showed a rate between 46 and 64 percent EPS-eggs of all laid eggs, the rate of broken- and thin shelled eggs was between 27 and 38 percent. Those broken- and thin shelled eggs increased absolute laying performance, because of their instability many of them were lost on the way from the cage to the packing station. The selected hens with EPS produced almost no normal eggs. It could be shown that if a hen starts laying EPS-eggs, she is almost unable to lay normal eggs any more. It could be proven serologically that hens with EPS had significant (p<0.05) higher titers against Mycoplasma synoviae (MS) then hens without EPS. MS-DNA was detectable from the tracheal swab in all tested hens. PCR tested cloacal swabs for MS were more frequently positive from hens with EPS (n=72; 87%) then from hens without EPS (n=13; 18%). Furthermore MS could be cultivated from the oviduct of 5 hens with EPS. Additionally 49 Eggs with EPS and 43 Eggs without EPS were examined microbiologically. MS-DNA was detectable in the albumen of nearly all eggs with EPS (n = 48; 98 %), contrary to the eggs without EPS (n = 11; 26%). Due to the findings it is very likely that an infection of the oviduct with MS results in eggs with EPS, whereas different factors may play an important role for the infection of the oviduct. In the qualitative investigation EPS-eggs had a significant (p<0.05) decreased pole eggshell strength than the eggs without EPS. The pole eggshell strength of the EPS-eggs of flock A (group “Pol A”) was with 11,4N just about a quarter of the pole eggshell strength of the reference flock. Nearly all eggs without EPS had a pole eggshell strength over 40N. It could be shown that hens without EPS had no decreased eggshell strength. The color of the brown EPS-eggs was often significant brighter than color of brown eggs without EPS. Furthermore the color pigments of the EPS-eggs were significant (p<0.05) changed. Dry eggshell weight was in EPS-eggs up until 1 gram difference significant (p<0.05) lower compared to eggs without EPS. Scanning electron microscopy was performed in 2 eggs with EPS and 2 eggs without EPS. This investigation revealed that eggs with EPS showed considerable differences of the eggshell structure as well as the cross section dimension according to eggs without EPS. It is doubtful whether the changed eggshell of EPS-eggs is impaired in its microbiological barrier function. The relevant variables for the freshness of the egg varied in the EPS-eggs in some cases significantly (p<0.05) compared to the control eggs. In Brown EPS-eggs increased Meat-spots occurred. However, MS could not be cultivated from EPS-eggs. Therewith fulfilled the investigated EPS-eggs - if their shell was intact - the formal requirements for fresh eggs of grade A eggs under regulation VO (EG) No. 1234/2007 and 598/2008. A gel electrophoretic analysis of the organic matrix of the eggshells of EPS-eggs and normal eggs was made. Intensity of the lysozyme-associated band was in the EPS eggs respectively higher than in the control eggs. However, this could not be proven statistically. Etiologically is conceivable that subclinical bacterial colonization of the hens oviduct with MS and the resulting immune response increases the lysozyme level in the uterine secretions. The shift of the lysozyme level affects both quantitatively and qualitatively negative on the eggshell formation. The result is a decrease in shell strength. The morphological correlate is the visible eggshell pole defect
Neser, Stefan. "Gasförmige Emissionen aus Haltungssystemen für Legehennen." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962146242.
Full textLouton, Helen. "Optimierung der Kleingruppenhaltung von Legehennen Schwerpunkt." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-167068.
Full textThis thesis describes the experimental design and the results of a comparative behavioral study of Lohmann Selected Leghorn laying hens housed in enriched colony housing systems of three different manufacturers in four facilities (A, B, C and D) and one deep litter system as a comparison (E). The facilities A to D differed in group size (33 to 50 animals per group) as well as in the alignment and division of the functional areas dust bath, perches and nest. In the deep litter system, 100 animals were housed per group. In all systems only artificial lighting was used. The study was funded by the German Federal Ministry of Food, Agriculture and Consumer Protection and the German Federal Office for Agriculture and Food as part of the Program for encouragement of Innovation. In order to study the behavior of the laying hens, video recordings of 48 hours duration were taken in three observational periods (ObPs) during the laying period (1st ObP 24/25 weeks of age, 2nd ObP 47/48 weeks of age, 3rd ObP 63/64 weeks of age). The cameras were installed so that an observation of the use of perches, dust bath area and wire mesh was possible. Day and night observations were analyzed separately. During the day time the dust bathing behavior was observed with the focal animal sampling method within three time slots (TZ). The time slots for the focal animal sampling were 30 minutes during the time of dawn in the early morning (TZ I), 60 minutes after the dawn in the morning (TZ II) and 60 minutes after the first filling of food into the litter area (TZ III). During this time it was observed how many and how long the hens dust bathe, why and in which frequency dust baths were interrupted and why dust baths were terminated. The fraction of dust bathing hens in the area of the dust bath and the wire mesh were noted through behavior sampling, hourly from 30 minutes after the start of the day onwards. During the main period of dust bathing (9:30 to 14:30 hours) the behavior sampling was done in a 20 minutes interval. The location of the hens in the functional areas of the housing system was observed through the scan sampling method, with an hourly interval 30 minutes after the beginning of the day light period. During the night time scan sampling was used twice to record the distribution of the laying hens in the system. The intensity of illumination was measured at three observation times (31st/34th, 51st, 64th/65th weeks of age) within the laying period. A six-directional-measurement was used to build an average for each area of investigation (dust bath, feeding trough, laying nest, middle of the compartment). An inspection of injuries was done three times within the laying period. Significantly fewer animals were seen in the area of the dust bath of the enriched colony housing systems (facility A to D; 12.8 % to 10.9 %) compared to the deep litter system (facility E; 27.6 % to 35.7 %) during the day period at all observational periods. However, during the daytime more hens were seen on the perches of the enriched colony housing systems (22.1 % to 26.8 %) than in the deep litter system (15.1 % to 11.3 %). 59.5 % to 65.5 % of the hens in the enriched colony housing systems used the perches during the night period. In the deep litter system, 64.3 % to 68.4 % of the hens used the roosts which included perches and bars for approaching the slats. A preference for different perches was seen in some of the facilities. During the daytime, perches which were positioned underneath the drinking trough in the enriched colony housing systems were used significantly more than others. Lower perches, which were not aligned underneath the drinking trough, were used less than higher perches of the enriched colony housing systems. The dust bathing behavior showed differences both between the different enriched colony housing systems as well as the enriched colony housing systems and the deep litter system. The hens of the facility C, the facility with the larger and connected areas for dust bathing, showed (partly significant) more dust bath bouts in the TZ III than in the other facilities. In the facility B, the total fraction of dust bathing hens during the daytime was in all observational periods (ObPs) significantly lower than in the facilities A, C, and D, and in the second and third ObP significantly lower than in all other facilities (A, C, D and E). During all ObPs, the major fraction of dust bathing hens of the facilities A and B was observed dust bathing on the wire mesh rather than on the provided litter area. In the facility B, this difference was significant in all ObPs, in the facility A it was significant in the 1st and 3rd ObP. The location of dust bathing on the wire mesh was observed and it was noted, that in the facilities A and B in all ObPs and in the facility D during the 2nd and 3rd ObPs it was seen significantly more often in front of the feeding trough than on the wire mesh between the perches. In the facilities C, D and E significantly more animals were seen during all ObPs dust bathing on the provided litter area. No dust bathing on the wire mesh was observed in the facility E. The average duration of a dust bath bout varied, in all facilities very short dust baths (shortest observed dust bath: 0.07 minutes, facility C) and very long dust baths (longest observed dust bath: 44.03 minutes, facility D) were observed. In the facility B, in all ObPs dust baths with the shortest average were observed (longest dust bath bout of the facility B: 5.60 minutes). Regarding the termination of the dust bath bouts, differences between the enriched colony housing systems and the deep litter system were observed. At all observation periods solely in the facility E significantly more dust baths were terminated unobstructed than by disrupting influences. The disruption of dust baths was seen more frequently in the facility A, C and D than in the facility E in all observation periods (in the 2nd and 3rd ObPs significant). Numerous times, no obvious reason for the disruption could be observed. In the facility E, the average intensity of illumination was 24.2 luces, in the enriched colony housing systems a maximum average of 7.5 luces was measured. No direct coherence between high intensities of illumination and severe injuries/high mortality rates was noted. However, because of the cannibalism during the former laying periods (in the facility A, B and D), low intensities of illumination were adjusted from the begin of this study. A clear increase of the intensity of illumination (measured in luces) could be obtained in the facility A by installing LED lights horizontally above the litter area. In the facility D an enhancement of the light intensity in cages with LED lights above the litter area compared to cages which did not have these lights was not possible. This was probably because the intensity of illumination in this facility was dependent on the position of the cage in the system and the illumination of the cage by the luminescent screen tube. In the facility D, more dust bathing hens were observed throughout the day at all ObPs in cages without LED than in cages with LED. In the facility A, this observation was not constant. However, throughout the day of all ObPs more hens of the facilty A were observed dust bathing in the litter area of cages with LED compared to cages without LED. The results of this thesis indicate that in following studies the intensity of illumination (in luces) rather than the existence of LED lights should be used as a comparing factor regarding the use of the litter area in dependency to the illumination. In the facility E, less severe and/or fewer injuries of the hens were noted than in the facilities A, B, C and D. The most severe and highest rate of injuries was noted in the facility B at all observation periods. In the facility B and D high mortality rates of 15.7 % (facility B) and 29.9 % (facility D) were recorded, the major cause of death in these facilities was cannibalism. The results of this study showed the occurrence of the behavioral disorder ‘sham dust bathing’ and ‘cannibalism’ in several of the observed enriched colony housing systems. Measures to optimize the enriched colony housing systems in consideration of enhancing the possibility to perform normal behavior are necessary. These measures of optimization should mainly affect the area of the dust bath (litter). The size of the dust bath area should provide enough space for 25 % to 35 % of the hens at the same time and should be one connected (not subdivided) area. Other functional areas, such as the drinking or feeding trough and perches should not cross or lie directly at the area of the dust bath.
Telle, Monika. "Verhaltensbeobachtungen bei der Kleingruppenhaltung von Legehennen (LSL)." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-134295.
Full textSiegwart, Nico. "Ursache und Pathogenese von Fussballengeschwüren bei Legehennen /." [S.l.] : [s.n.], 1991. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Full textWeigl, Birgit. "Gesundheitsstatus von Legehennen in Klein- und Großvolierenhaltung im Vergleich." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-72980.
Full textMayr, Sandra [Verfasser], and Michael [Akademischer Betreuer] Erhard. "Optimierung der Kleingruppenhaltung von Legehennen : Tiergesundheit und Leistung von Lohmann Selected Leghorn (LSL) und Lohmann Brown Classic (LB) Legehennen / Sandra Mayr. Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1078852189/34.
Full textHergt, Franziska. "Vergleichende Untersuchung zum Verhalten von Legehennen in Klein- und Großvolierenhaltung." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-74901.
Full textKaltenecker, Martin. "Zum Carry over von Toxaphen in Legehennen und Eiern Beitrag zur Etablierung eines Höchstwertes für Toxaphenrückstände in Futtermitteln für Legehennen auf Basis einer indikatorspezifischen Analytik /." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963444417.
Full textIcken, Wiebke. "Schätzung genetischer Parameter für Verhaltens- und Leistungsmerkmale von Legehennen in Gruppenhaltungssystemen /." Kiel : Selbstverl. des Inst. für Tierzucht und Tierhaltung der Christian-Albrechts-Univ. zu Kiel, 2009. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=017635663&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textLippmann, Jens. "Stickstoffdynamik im Umfeld einer Legehennenhaltung." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-76085.
Full textTelle, Monika Verfasser], and Michael [Akademischer Betreuer] [Erhard. "Verhaltensbeobachtungen bei der Kleingruppenhaltung von Legehennen (LSL) / Monika Telle. Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1015203310/34.
Full textWehlitz, Romi, Ulf Müller, Christin Huhnstock, and Andrea Schneider. "Beleuchtungskörper in der Legehennenhaltung: Einfluss des Lichtspektrums von Beleuchtungskörpern in der Legehennenhaltung." Sächsisches Landesamt für Umwelt, Landwirtschaft und Geologie, 2016. https://slub.qucosa.de/id/qucosa%3A7590.
Full textBaumgart, Bianca. "Tiergesundheit, Verhalten und Leistung unter besonderer Berücksichtigung der Besatzdichte bei Legehennen in Volierenhaltung." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-37461.
Full textJürgens, Wolfram. "Rückstände in Eiern nach Anwendung von Enrofloxacin bei Legehennen in Boden- und Käfighaltung." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980694345.
Full textParshad, Denice Helga. "Zur Stressreaktivität von Legehennen zweier Hybridlinien (LB und LSL) nach körperlicher Fixation ("Flügelkreuzen")." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-168926.
Full textFitz, Bernd. "Vergleichende Untersuchungen zu Gesundheit, Leistung und Verhalten von Legehennen mit unterschiedlichen Einstreumaterialien in Volierenhaltung." Diss., [S.l.] : [s.n.], 2007. http://edoc.ub.uni-muenchen.de/archive/00006534.
Full textBazer, Daniela. "Einfluss einer Auslaufstrukturierung auf das Verhalten, den Gesundheitszustand und die Leistung von Legehennen in Freilandhaltung." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-41400.
Full textSchmied, Eva-Maria. "Vergleichende Untersuchung zum Resistenzverhalten ausgewählter Bakterien von Legehennen und Eiern aus konventionellen und ökologischen Haltungssystemen." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-69865.
Full textSchmied, Eva-Maria Veronika. "Vergleichende Untersuchung zum Resistenzverhalten ausgewählter Bakterien von Legehennen und Eiern aus konventionellen und ökologischen Haltungssystemen." [S.l.] : [s.n.], 2007. http://edoc.ub.uni-muenchen.de/archive/00006986.
Full textStahl, Johanna Katharina [Verfasser]. "Einfluss einer Supplementierung mit 25-Hydroxycholecalciferol auf die Calcium-Homöostase von Legehennen / Johanna Katharina Stahl." Hannover : Bibliothek der Tierärztlichen Hochschule Hannover, 2013. http://d-nb.info/1046801082/34.
Full textEva, Dorothee [Verfasser]. "Verzerrung von Studienergebnissen der Beurteilung von Haltungssystemen für Legehennen durch Haltung und Management / Dorothee Eva." Hannover : Bibliothek der Tierärztlichen Hochschule Hannover, 2017. http://d-nb.info/1150188820/34.
Full textSchümann, Alexandra. "Einfluss einer Auslaufstrukturierung mit Flachdächern auf die Gesundheit, Leistung und das Verhalten von Legehennen in Freilandhaltung." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-81626.
Full textBöhland, Corinna [Verfasser]. "Erfahrungen zum Einsatz verschiedener E. coli-Inaktivatvakzine bei Legehennen im alternativen Haltungssystem unter Feldbedingungen / Corinna Böhland." Berlin : Freie Universität Berlin, 2007. http://d-nb.info/1022456342/34.
Full textDuß, Claudia Inge [Verfasser]. "Untersuchungen zum Einfluss von experimentellen Ascaridia-galli-Infektionen auf das Verhalten von Legehennen / Claudia Inge Duß." Wettenberg : VVB Laufersweiler, 2005. http://d-nb.info/976066394/34.
Full textPelz, Ute [Verfasser]. "Untersuchungen zum Ausscheidungsverhalten von Yersinia enterocolitica O:3/4 von Legehennen nach experimenteller oraler Infektion / Ute Pelz." Berlin : Freie Universität Berlin, 2010. http://d-nb.info/1025126602/34.
Full textLippmann, Jens. "Kenndaten zur Legehennenhaltung Natura 60 und High Rise 3." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-68518.
Full textLe, Bris Morana. "Vergleichende Untersuchungen zum Verhalten sowie zur Gesundheit und Leistung von Legehennen unterschiedlicher Linien (LSL, LB, LT) in Volierenhaltung." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-32050.
Full textHammes, Adriane [Verfasser], and Michael [Akademischer Betreuer] Erhard. "Haltung unkupierter Legehennen in alternativen Haltungssystemen unter Berücksichtigung der Tiergesundheit und des Stallklimas / Adriane Hammes ; Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2017. http://d-nb.info/1129105334/34.
Full textPlattner, Christina [Verfasser], and Michael [Akademischer Betreuer] Erhard. "Verhalten nicht-schnabelgekürzter Legehennen in Boden- und Freilandhaltung mit Fokus auf das Pickverhalten / Christina Plattner. Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1079140204/34.
Full textLenz, Alice [Verfasser], and Michael [Akademischer Betreuer] Erhard. "Federpicken und Kannibalismus bei nicht-schnabelgekürzten Legehennen in Praxisbetrieben : Einfluss von Management und Haltung / Alice Lenz. Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1080122354/34.
Full textKaesberg, Anne-Katrin [Verfasser], and Michael [Akademischer Betreuer] Erhard. "Untersuchungen zur Prävention von und frühzeitigen Reaktion auf Federpicken und Kannibalismus bei Legehennen / Anne-Katrin Kaesberg ; Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1171131615/34.
Full textLouton, Helen [Verfasser], and Michael [Akademischer Betreuer] Erhard. "Optimierung der Kleingruppenhaltung von Legehennen Schwerpunkt : Verhalten und Lichtmanagement von Lohmann Selected Leghorn Hennen / Helen Louton. Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1048522415/34.
Full textZurhelle, Georg. "Entwicklung und Anwendung einer automatisierten HPLC-Methode mit gekoppelter On-line-Dialyse Metabolismus, Verteilung und Elimination dreier Tetracycline bei Legehennen /." [S.l.] : [s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=960169067.
Full textHäffelin, Katharina Elisabeth [Verfasser], Robby Akademischer Betreuer] Andersson, Nicole [Gutachter] [Kemper, and Silke [Gutachter] Rautenschlein. "Messung von Corticosteron in Federn von Jung- und Legehennen / Katharina Elisabeth Häffelin ; Gutachter: Nicole Kemper, Silke Rautenschlein ; Betreuer: Robby Andersson." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2021. http://d-nb.info/1237684803/34.
Full textGozzoli, Livio. "Die Haltung von Legehennen in der Auslauf-, Boden- und Gitterrosthaltung : eine vergleichende Beurteilung anhand von Untersuchungsdaten aus 33 Hühnerherden in Praxisbetrieben /." [S.l.] : [s.n.], 1986. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=7943.
Full textBues, Mara [Verfasser], and Mirja [Akademischer Betreuer] Wilkens. "Interaktion zwischen Selektion auf Leistungseffizienz und Adaptationsvermögen an eine reduzierte Calcium-Konzentration im Futter bei Legehennen / Mara Bues ; Betreuer: Mirja Wilkens." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2019. http://d-nb.info/1202774814/34.
Full textSzczepanek, Anna [Verfasser], and Michael [Akademischer Betreuer] Erhard. "Untersuchungen zu Risikofaktoren für das Auftreten von Federpicken und Kannibalismus bei nicht-schnabelgekürzten Legehennen in Praxisbetrieben / Anna Szczepanek. Betreuer: Michael Erhard." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1096162636/34.
Full textRanck, Frederik [Verfasser], Maria-Elisabeth [Akademischer Betreuer] Krautwald-Junghanns, Maria-Elisabeth [Gutachter] Krautwald-Junghanns, Karsten [Akademischer Betreuer] Fehlhaber, and Michael [Gutachter] Lierz. "Mycoplasma synoviae assoziierte Eischalenpoldefekte bei Legehennen / Frederik Ranck ; Gutachter: Maria-Elisabeth Krautwald-Junghanns, Michael Lierz ; Maria-Elisabeth Krautwald-Junghanns, Karsten Fehlhaber." Leipzig : Universitätsbibliothek Leipzig, 2011. http://d-nb.info/1237894174/34.
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