ANFS350 Lecture Notes - Lecture 99: Central Pattern Generator, Peppered Moth Evolution, Peripheral Nervous System
30 Aug 2016
School
Department
Course
Professor
Document Summary
44: managing behavior in domestic and companion animals. Lecture 2: evolution and domestication, effects on behavior: evolution. Domestication: group size, parental contact, sexual grouping. White spotting on forehead, floppy ears, shortened snouts, curly tails, widened skull: breeds/strain/line variation, family variation, behavioral traits are determined by genes and environmental factors, genes, composed of dna, contain codes for behavior. Selection is very specific: selection for agonistic behavior, drosophila aggressive genetic study, selection for maternal aggressive behavior. Greater uniformity in response to training: some domestic animals have upregulation in certain genes. Includes both aggressive and submissive or escape behaviors. Important for establishment of social hierarchies or dominance orders, animal survival and reproduction. Divergent selection was demonstrated in as few as 5 generations and response to selection was symmetrical (chickens) Study identified over 1500 genes that were differentially expressed between aggressive and submissive lines. Biogenic amines: low levels of serotonin are associated with increased aggressive behavior.
