Baitsi Podisi, Sara Knott, David W. Burt, P.M. Hocking,
Abstract Background Comparisons of quantitative trait loci (QTL) for growth and parameters of growth curves assist in understanding the genetics and ultimately the physiology of growth. Records of body weight at 3, 6, 12, 24, 48 and 72 weeks of age and growth rate between successive age intervals of about 500 F 2 female chickens of the Roslin broiler-layer cross were available for analysis. These data were analysed to detect and compare QTL for body weight, growth rate and parameters of the Gompertz ...
Tópico(s): Genetics and Plant Breeding
2013 - BioMed Central | BMC Genomic Data
Daniel Hillel, Cynthia Rosenzweig,
... Africa (CCARPASA)—Evidence from Rainfed SystemsBerhanu F. Alemaw, Baitsi K. Podisi, Simon Mwale and Timothy E. Simalenga2 ...
Tópico(s): Climate change impacts on agriculture
2010 - Imperial College Press | ICP series on climate change impacts, adaptation, and mitigation
Baitsi Podisi, Sara Knott, Ian Dunn, Andy Law, David W. Burt, P.M. Hocking,
Critical age, weight and body composition have been suggested as necessary correlates of sexual maturity. A genome scan to identify quantitative trait loci (QTL) for age and body weight at first egg (AFE and WFE) was conducted on 912 birds from an F(2) broiler-layer cross using 106 microsatellite markers. Without a covariate, QTL for body WFE were detected on chromosomes 2, 4, 8, 27 and Z and a single QTL for AFE was detected on chromosome 2. With AFE as a covariate, additional QTL for body WFE were ...
Tópico(s): Animal Nutrition and Physiology
2010 - Bioscientifica | Reproduction
Tim Downing, David J. Lynn, Sarah Connell, Andrew T. Lloyd, AK Fazlul Haque Bhuiyan, Pradeepa Silva, A. N. Naqvi, Rahamame Sanfo, Racine-Samba Sow, Baitsi Podisi, Cliona OʼFarrelly, Olivier Hanotte, Daniel G. Bradley,
Tópico(s): Animal Nutrition and Physiology
2009 - Springer Science+Business Media | Immunogenetics
Tim Downing, David J. Lynn, Sarah Connell, Andrew T. Lloyd, AKFH Bhuiyan, Pradeepa Silva, A. N. Naqvi, Rahamame Sanfo, Racine-Samba Sow, Baitsi Podisi, Olivier Hanotte, Cliona OʼFarrelly, Daniel G. Bradley,
The comparative analysis of genome sequences emerging for several avian species with the fully sequenced chicken genome enables the genome-wide investigation of selective processes in functionally important chicken genes. In particular, because of pathogenic challenges it is expected that genes involved in the chicken immune system are subject to particularly strong adaptive pressure. Signatures of selection detected by inter-species comparison may then be investigated at the population level in ...
Tópico(s): Silkworms and Sericulture Research
2009 - Springer Science+Business Media | BMC Evolutionary Biology
Baitsi Podisi, Sara Knott, Ian Dunn, David W. Burt, P.M. Hocking,
1. An F₂ cross of a broiler male line and a White Leghorn layer line was used to identify quantitative trait loci (QTL) for bone density at the onset of lay and at the end of the laying period. A total of 686 measures of humeral bone density were available for analysis. 2. There was no evidence for epistasis. 3. Genome-wide significant QTL for bone density at the onset of lay were identified on chromosomes 1 (311 cM) and 8 (2 cM) and on chromosomes 1 (311 cM), 3 (57 cM) and 8 (2 cM) with a covariate for ...
Tópico(s): Animal Nutrition and Physiology
2012 - Taylor & Francis | British Poultry Science
Tim Downing, Cliona OʼFarrelly, AKFH Bhuiyan, P. Silva, A. N. Naqvi, R. Sanfo, Racine-Samba Sow, Baitsi Podisi, Olivier Hanotte, Daniel G. Bradley,
Summary The chicken lysozyme gene encodes a hydrolase that has a key role in defence, especially in ovo . This gene was resequenced in global chicken populations [red, grey, Ceylon and green jungle fowl (JF)] and related bird species. Networks, summary statistics and tests of neutrality indicate that although there is extensive variation at the gene, little is present at coding sites, with the exception of one non‐synonymous site. This segregating site and a further fixed non‐synonymous change between ...
Tópico(s): Genetic and phenotypic traits in livestock
2009 - Wiley | Animal Genetics
Berhanu F. Alemaw, Baitsi Podisi, S.S. Mwale, T.E. Simalenga,
Sustainability of rainfed farming systems under climate variability and change conditions is a key concern for policy and adaptation planning processes to improve food and nutrition security. The challenge is to improve farming and tillage practices to enhance soil moisture availability and harvest excess runoff, thereby making the farming systems more reliable and resilient to the unpredictable risks of climate change and variability. In this short chapter, an assessment of climate change impact ...
Tópico(s): Soil Carbon and Nitrogen Dynamics
2020 - Springer International Publishing | Sustainable development goals series
Tim Downing, David J. Lynn, Sarah Connell, Andrew T. Lloyd, Abul Kashem Fazlul Haque Bhuiyan, Pradeepa Silva, A. N. Naqvi, Rahamame Sanfo, Racine Samba Sow, Baitsi Podisi, Cliona OʼFarrelly, Olivier Hanotte, Daniel G. Bradley,
Tópico(s): Livestock and Poultry Management
2009 - Springer Science+Business Media | Immunogenetics
Tim Downing, David J. Lynn, Sarah Connell, Andrew T. Lloyd, AKFH Bhuiyan, Pradeepa Silva, A. N. Naqvi, Rahamame Sanfo, Racine-Samba Sow, Baitsi Podisi, Cliona OʼFarrelly, Olivier Hanotte, Daniel G. Bradley,
Tópico(s): Livestock and Poultry Management
2009 - Springer Science+Business Media | Immunogenetics