Performance and Deficiency Symptoms of Young Pigs Fed Diets Low in Vitamin E and Selenium

Effect of selenium on the digestive enzymes of the porcine pancreas

“…The ADG, regardless of treatment, increased linearly (P < .01) with time on experiment. These results agree with those of Eggert et al (1957), Pellegrini (1958), and Ewan et al (1969), who reported that adding selenium to vitamin Esupplemented diets did not affect growth rate. Glienke and Ewan (1977) reported that selenium supplementation improved growth rate in pigs weaned from sows fed a selenium-deficient diet through 5 reproductive cycles.…”

“…synthesis. Ewan et al (1969) and Niyo et al (1977) were unable to find any gross or histological degeneration of pancreatic tissue from vitamin E-selenium-deficient pigs even when the pigs died exhibiting other symptoms of vitamin E-selenium deficiency. Glienke and Ewan (1977), while not examining pancreatic function, shewed that apparent digestibility of dry matter, nitrogen, and ether extract was significantly improved when pigs, from sows fed vitamin Eselenium-deficient diets, were supplemented with .05 ppm selenium.…”

Studies of selenium-vitamin E deficiency produced experimentally in young pigs

“…The slight depres sions in weight gains noted between 21 and 28 days of age were correlated with low feed consumption by all groups during the first week of the postweaning period. Failure to improve weight gains in weaned pigs by supplementing pigs with selenium and/or vitamin E in the present study is consistent with findings by other workers (Ewan et al, 1969;Grant, I96I;Groce et al, 1971;Van Vleet et al, 1973).…”

“…(Ewan et al, 1969;Gorham et al, 1951&, 1951b Mahan £t , 1973» Michel ^ , I969;Nafstad and Tollersrud, 1970;Obel, 1953; Orstadius ^ al., I963; Trapp ^ , 1970;Van Vleet ^ al., 1970).…”

“…Naturally occurring and experimentally produced cases of nutritional muscular dystrophy in pigs have been exten sively discussed (Dodd and Mewling, I96O; Ewan et al, 1969; Hartley and Grant, I96I; Lanneck ^ al., I96I; Lindberg and Orstadius, I96I; Ludvigsen, 1953» Michel et al,, 19695 Nafstad andThafvelin, I96O;Trapp et al, 1970;Van Vleet et al, 1970). This condition has been produced by feeding pigs diets that are high in fat and deficient in vitamin E and/or selenium.…”