Please enable JavaScript.
Coggle requires JavaScript to display documents.
HIP DYSPLASIA IN GERMAN SHEPHERDS - Coggle Diagram
HIP DYSPLASIA IN GERMAN SHEPHERDS
Background of disease
Hip scoring methods
BVA hip / elbow scoring scheme
Outline of population
Objectives of breeding goals
Outline of breeding goals
Lit review
Genetic controls
Diagnostic tests
Selective breeding
HJL / HD phenotype
Considered non-effective due to some of the major genes being recessive (Ginja
et al
., 2010)
early HJL determination reliable / 2 hip evaluations (Ginja
et al
., 2010)
Normal radiographic phenotype may still be carriers for dysplasia genes
Could still cause HD - therefore progress would slow down
genetic markers
Breeding value - selection for polygenic traits (Ginja
et al
., 2010, pp. 269-276)
hip quality of of relatives and offspring
measures dogs genetic quality than individual records
German shepherd study (Janutta
et al
., 2008) did not signify any improvement being seen using this method
Methods to identify genetic potential for chosen traits????
Recommend how these objectives can be achieved
Which strategies are best to adopt - JUSTIFICATION
Estimates of expected outcomes - rate of improvement, inbreeding rates, benefits of cross breeding??
Opportunities and barriers for further development of breeding program through emerging technologies
Bioethics
Utilitarian
Breeding to improve breed - cant only use 0 scoring dogs as this would cause bottleneck effect
Need to breed from dogs scoring higher than 0 - will be more difficult
Contractarian
Breeding dogs for our own benefit, not the dogs
Health isn't considered - hip scores not done - COST - bred anyway
Breeding contract - animals are seen as an asset rather than an individual
Deontology
Breeding using low hip scores to breed
Wouldn't directly help the individual - but would better the overall breed
Should not suffer or be in pain - dystocia potential? Risk?
Virtue theory