Roessler, Regina

[["dc.bibliographiccitation.artnumber","jbg.12730"],["dc.bibliographiccitation.firstpage","723"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Journal of Animal Breeding and Genetics"],["dc.bibliographiccitation.lastpage","737"],["dc.bibliographiccitation.volume","139"],["dc.contributor.affiliation","Hameed, Asif; 1\r\nAnimal Husbandry in the Tropics and Subtropics\r\nUniversity of Kassel and University of Göttingen\r\nWitzenhausen Germany"],["dc.contributor.affiliation","Schlecht, Eva; 1\r\nAnimal Husbandry in the Tropics and Subtropics\r\nUniversity of Kassel and University of Göttingen\r\nWitzenhausen Germany"],["dc.contributor.affiliation","Tariq, Muhammad; 2\r\nDepartment of Livestock Management\r\nUniversity of Agriculture\r\nFaisalabad Pakistan"],["dc.contributor.affiliation","Buerkert, Andreas; 3\r\nOrganic Plant Production and Agroecosystems Research in the Tropics and Subtropics\r\nUniversity of Kassel\r\nWitzenhausen Germany"],["dc.contributor.affiliation","Scheper, Carsten; 4\r\nInstitute of Animal Breeding and Genetics\r\nJustus‐Liebig‐University of Gießen\r\nGießen Germany"],["dc.contributor.affiliation","König, Sven; 4\r\nInstitute of Animal Breeding and Genetics\r\nJustus‐Liebig‐University of Gießen\r\nGießen Germany"],["dc.contributor.author","Hameed, Asif"],["dc.contributor.author","Schlecht, Eva"],["dc.contributor.author","Tariq, Muhammad"],["dc.contributor.author","Buerkert, Andreas"],["dc.contributor.author","Scheper, Carsten"],["dc.contributor.author","König, Sven"],["dc.contributor.author","Roessler, Regina"],["dc.date.accessioned","2022-11-28T09:46:12Z"],["dc.date.available","2022-11-28T09:46:12Z"],["dc.date.issued","2022-07-04"],["dc.date.updated","2022-11-27T10:11:32Z"],["dc.description.abstract","Abstract\r\nDue to climate change, irrigated agriculture may become restricted in the mountain valleys in northern Pakistan in the future. Hence, the importance of yak (Bos grunniens) keeping in the mountain ranges as risk‐mitigating strategy for mountain dwellers will potentially increase. However, little is known about the current status of the domestic yak in this region. We therefore used phenotypic characteristics and 13 microsatellite loci to determine the phenotypic differences and the level of genetic differentiation between populations of six valleys. Larger body measures and partially different physical appearance were observed in Shimshal and Khaplu yaks, especially when compared with yaks in the Chapurson valley. Overall, the mean observed heterozygosity was similar to the mean expected heterozygosity. Average genetic diversity was highest in the Hopar population and lowest in the Haramosh population. A low FIS value indicated that individuals were less related than expected under a model of random mating. Three distinct genetic clusters were found for the six yak populations under study. Genetic distances were largest between Shimshal and Khaplu populations, and lowest between populations of Phandar and Hopar. It is concluded that yaks of Shimshal, Khaplu and Haramosh valleys were genetically distinct from yak populations in Chapurson, Hopar and Phandar valleys, indicating that the free‐range conditions and pastoral yak rearing system in the region have preserved the underlying genetic diversity of the yak populations."],["dc.description.sponsorship","Deutscher Akademischer Austauschdienst http://dx.doi.org/10.13039/501100001655"],["dc.description.sponsorship","International Centre for Development and Decent Work"],["dc.description.sponsorship","Georg‐August‐Universität Göttingen http://dx.doi.org/10.13039/501100003385"],["dc.identifier.doi","10.1111/jbg.12730"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/117324"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-597"],["dc.relation.eissn","1439-0388"],["dc.relation.issn","0931-2668"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made."],["dc.rights.uri","http://creativecommons.org/licenses/by-nc-nd/4.0/"],["dc.title","Phenotypic and genetic diversity of domestic yak (Bos grunniens) in high‐altitude rangelands of Gilgit‐Baltistan, Pakistan"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","100070"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Animal"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Roessler, R."],["dc.contributor.author","Schlecht, E."],["dc.date.accessioned","2021-06-01T10:49:24Z"],["dc.date.available","2021-06-01T10:49:24Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1016/j.animal.2020.100070"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/86277"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.issn","1751-7311"],["dc.title","Application of the laser methane detector for measurements in freely grazing goats: impact on animals' behaviour and methane emissions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1372"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Asian-Australasian journal of animal sciences"],["dc.bibliographiccitation.lastpage","1381"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","Brown, Michael Mensah"],["dc.contributor.author","Alenyorege, Benjamin"],["dc.contributor.author","Teye, Gabriel Ayum"],["dc.contributor.author","Roessler, Regina"],["dc.date.accessioned","2019-07-09T11:44:48Z"],["dc.date.available","2019-07-09T11:44:48Z"],["dc.date.issued","2017-10"],["dc.description.abstract","OBJECTIVE: Our study provides information on phenotypes of local chickens and guinea fowl and their body measures as well as on major genes in local chickens in northern Ghana. METHODS: Qualitative and morphometric traits were recorded on 788 local chickens and 394 guinea fowl in urban households in Tamale, Ghana. RESULTS: The results showed considerable variation of color traits and numerous major genes in local chickens, while color variations and related genotypes in guinea fowl were limited. In local chickens, white was preferred for plumage, whereas dark colors were preferred for beak and shanks. More than half of the chickens carried at least one major gene, but the contributions of single gene carriers were low. All calculated allele frequencies were significantly lower than their expected Mendelian allele frequencies. We observed higher mean body weight and larger linear body measures in male as compared to female chickens. In female chickens, we detected a small effect of major genes on body weight and chest circumference. In addition, we found some association between feather type and plumage color. In guinea fowl, seven distinct plumage colors were observed, of which pearl grey pied and pearl grey were the most prevalent. Male pearl grey pied guinea fowl were inferior to pearl grey and white guinea fowl in terms of body weight, body length and chest circumference; their shank length was lower than that of pearl grey fowl. CONCLUSION: Considerable variation in qualitative traits of local chickens may be indicative of genetic diversity within local chicken populations, but major genes were rare. In contrast, phenotypic and genetic diversity in local guinea fowl is limited. Broader genetic diversity studies and evaluation of trait preferences of local poultry producers are required for the design of appropriate breeding programs."],["dc.identifier.doi","10.5713/ajas.17.0145"],["dc.identifier.pmid","28728378"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14902"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59097"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1011-2367"],["dc.rights","CC BY-NC 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc/4.0"],["dc.subject.ddc","630"],["dc.title","Phenotypic diversity, major genes and production potential of local chickens and guinea fowl in Tamale, northern Ghana."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","207"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Animals"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Roessler, Regina"],["dc.date.accessioned","2019-07-09T11:51:18Z"],["dc.date.available","2019-07-09T11:51:18Z"],["dc.date.issued","2019"],["dc.description.abstract","BACKGROUND: Participatory approaches of designing livestock breeding programs for tropical production systems have been extensively applied for rural livestock, whereas the peri-/urban livestock production sector tends to be widely neglected. In order to ensure the viability of the commercial cattle and sheep production sector in Ouagadougou, Burkina Faso, structured breed improvement programs are needed. The study aims to better understand selection decisions of cattle and sheep breeders and their trait preferences for local and imported breeds. METHODS: 49 cattle and 31 sheep breeders in peri-/urban areas of the city were approached in personal interviews. Data were analyzed in R version 3.5.1. RESULTS: The main motivation for keeping cattle and sheep was to generate regular cash income through the selling of milk (cattle only) and surplus animals. Some (modern) breeders used imported breeds because of higher production performances. For imported cattle breeds, improved breeding technologies and management were applied to further enhance production outputs. Nevertheless, local livestock breeds were predominantly used due to their good adaptation. CONCLUSIONS: Selection decisions and trait preferences for local and imported cattle and sheep breeds were strongly based on performance traits. Especially sheep breeders, but also traditional cattle breeders, did not record performance traits and did not take conscious breeding decisions."],["dc.identifier.doi","10.3390/ani9050207"],["dc.identifier.pmid","31052262"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16098"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59920"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.publisher","MDPI"],["dc.relation.eissn","2076-2615"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","630"],["dc.title","Selection Decisions and Trait Preferences for Local and Imported Cattle and Sheep Breeds in Peri-/Urban Livestock Production Systems in Ouagadougou, Burkina Faso"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","1199"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Sustainability"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Roessler, Regina"],["dc.contributor.author","Mpouam, Serge"],["dc.contributor.author","Muchemwa, Tichaona"],["dc.contributor.author","Schlecht, Eva"],["dc.date.accessioned","2019-07-09T11:42:59Z"],["dc.date.available","2019-07-09T11:42:59Z"],["dc.date.issued","2016"],["dc.description.abstract","In this study, we try to capture the degree of specialization or integration, and of intensification or extensification, of (peri-) urban livestock production, along with the factors that influence such decisions and their impact on natural resource uses. A total of 181 and 187 structured questionnaires were completed in livestock-keeping households in Ouagadougou (Burkina Faso) and Tamale (Ghana). Categorical principal component and two-step cluster analysis were used to identify homogenous groups of livestock-keeping households. Cross tabulation and logistic regression analysis revealed factors that influence livestock husbandry, showing their impacts on resource use by livestock keepers in the two cities. A diversity of livestock species was kept, mostly integrated with crop farming. Yet, some households specialized in either sheep, pig or commercial milk production, and partly intensified their production. The decision to specialize and/or intensify livestock production is site-specific and influenced by the education level of the household head and security of land ownership. Higher inputs in livestock systems do not necessarily lead to higher outputs, and specialization inevitably leads to higher manure wastages. Therefore, links of livestock producers to crop farmers and markets for livestock manure must be strengthened to enable recycling of resources and limit negative externalities of specialized livestock production. Strategies need to be identified to improve livestock productivity by enhancing outputs as input use increases."],["dc.identifier.doi","10.3390/su8111199"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14070"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58803"],["dc.language.iso","en"],["dc.relation.issn","2071-1050"],["dc.rights.access","openAccess"],["dc.title","Emerging Development Pathways of Urban Livestock Production in Rapidly Growing West Africa Cities"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","843"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","South African Journal of Animal Science"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Roessler, R."],["dc.contributor.author","Amprako, L."],["dc.contributor.author","Sayibu, A.R."],["dc.contributor.author","Mohammed, A."],["dc.contributor.author","Menezes, R.C."],["dc.contributor.author","Hölscher, D."],["dc.contributor.author","Alenyorege, B."],["dc.contributor.author","Dei, H.K."],["dc.contributor.author","Steiner, C."],["dc.date.accessioned","2020-12-10T18:47:49Z"],["dc.date.available","2020-12-10T18:47:49Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.4314/sajas.v47i6.12"],["dc.identifier.eissn","2221-4062"],["dc.identifier.issn","0375-1589"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78903"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Effects of false yam tuber meals and charcoal on broiler chicken production and blood parameters"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","201"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Nutrient Cycling in Agroecosystems"],["dc.bibliographiccitation.lastpage","230"],["dc.bibliographiccitation.volume","115"],["dc.contributor.author","Schlecht, Eva"],["dc.contributor.author","Plagemann, Julian"],["dc.contributor.author","Mpouam, Serge Eugène"],["dc.contributor.author","Sanon, Hadja Oumou"],["dc.contributor.author","Sangaré, Mamadou"],["dc.contributor.author","Roessler, Regina"],["dc.date.accessioned","2020-12-10T14:11:34Z"],["dc.date.available","2020-12-10T14:11:34Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1007/s10705-019-09996-x"],["dc.identifier.eissn","1573-0867"],["dc.identifier.issn","1385-1314"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71113"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Input and output of nutrients and energy in urban and peri-urban livestock holdings of Ouagadougou, Burkina Faso"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2353"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Dairy Science"],["dc.bibliographiccitation.lastpage","2364"],["dc.bibliographiccitation.volume","102"],["dc.contributor.author","Roessler, Regina"],["dc.contributor.author","Mpouam, Serge E."],["dc.contributor.author","Schlecht, Eva"],["dc.date.accessioned","2020-12-10T18:44:02Z"],["dc.date.available","2020-12-10T18:44:02Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.3168/jds.2018-15348"],["dc.identifier.issn","0022-0302"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78304"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Genetic and nongenetic factors affecting on-farm performance of peri-urban dairy cattle in west Africa"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","110"],["dc.bibliographiccitation.journal","Computers and Electronics in Agriculture"],["dc.bibliographiccitation.lastpage","117"],["dc.bibliographiccitation.volume","150"],["dc.contributor.author","Roessler, R."],["dc.contributor.author","Chefor, F."],["dc.contributor.author","Schlecht, E."],["dc.date.accessioned","2020-12-10T14:23:15Z"],["dc.date.available","2020-12-10T14:23:15Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.compag.2018.04.010"],["dc.identifier.issn","0168-1699"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71874"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Using a portable laser methane detector in goats to assess diurnal, diet- and position-dependent variations in enteric methane emissions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]