genetic variation of viral protein 1 genes of field strains of waterfowl parvoviruses and their attenuated understand the genetic variations between the field strains of waterfowl parvoviruses and their attenuated derivatives, we analyzed the complete nucleotide sequences of the viral protein 1 (vp1) genes of nine field strains and two vaccine strains of waterfowl parvoviruses. sequence comparison of the vp1 proteins showed that these viruses could be divided into goose parvovirus (gpv) related and muscovy duck parvovirus (mdpv) related groups. the amino acid difference between gpv- and mdpv-relat ...200415529973
evidence for natural recombination in the capsid gene vp2 of taiwanese goose investigate the possible role of recombination in the evolution of muscovy duck parvovirus (mdpv) and goose parvovirus (gpv) in taiwan, we analyzed a potentially significant recombination event that occurred only in gpv by comparing thirteen complete sequences of the capsid gene vp2 of gpv and mdpv. the recombination event occurred between gpv strain 06-0239 as the minor parent and strains 99-0808 as the major parent, which resulted in the gpv recombinant v325/tw03. gpv v325/tw03 is likely to ...201526085285
heritabilities and genetic correlations of laying performance in muscovy ducks selected in taiwan.1. genetic parameters in the base population of a closed experimental strain of muscovy ducks, selected for body weight at 10 weeks of age, were estimated from data in 8 successive generations, for the following traits: age at first egg (age1egg), total number of eggs laid at 40 and 52 weeks of age (negg40 and negg52), number of eggs laid during 15 and 22 weeks in the first laying cycle (negg15w and negg22w), and their box-cox transformed data. 2. the method of multi-trait restricted maximum lik ...200415222414
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