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Four genetically related Improved Awassi sheep flocks had sporadic births of lambs with congenital visual impairments that differed from other known forms of sheep blindness. Pedigree analysis suggested an autosomal recessive mode of inheritance. Behavioural studies of 4-month old affected lambs showed that their day vision (but not night vision) was(More)
The lack of affordable techniques for gene transfer in birds has inhibited the advancement of molecular studies in avian species. Here we demonstrate a new approach for introducing genes into chicken somatic tissues by administration of a lentiviral vector, derived from the feline immunodeficiency virus (FIV), into the chorioallantoic membrane (CAM) of(More)
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