OALib Journal期刊
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Biodisponibilidade de fontes organicas e inorganicas de zinco em ovinos
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this research was done to compare the effects of different zinc sources and doses in the santa ines sheep diet. forty lambs at weaning, with 18,4kg bw were randomly allotted and fed 10 treatments: 1- base diet without
2- base diet + 200mg zn/kg 3- base diet + 400mg zn/kg 4- base diet + 600mg zn/kg 5- base diet + 200mg zn/kg of d 6- base diet + 400mg zn/kg of d 7- base diet + 600mg zn/kg of d 8- base diet + 200mg zn/kg of d 9- base diet + 400mg zn/kg of d 10- base diet + 600mg zn/kg of dm as proteinato zinc. the animals were weighed and sampled for blood zinc analysis, phosphatase alkaline analysis and immunoglobulins g and m analysis. at the end of the experiment liver samples were collected to study the zinc hepatic levels. there was no difference in phosphatase alkaline levels, hepatic zinc levels and weight gain (p>0,05) but differences (p<0,05) in plasmatic zinc levels and in igg and igm levels were observed. based on liver tissue uptake, estimates of the zinc bioavailability, through the regression equations showed that the organic and inorganic sources of zinc did not differ.
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