4WILGUS H S, NORRIS L A C, HEUSER G F. The effect of various calcium and phosphorus salts on theseverity of perosis [ J ]. Poultry Science, 1937, 16: 232 -237.
5LEACH R M, ANNA-MARIE M. Studies on the role of manganese in bone formation: 1. Effect upon the mucopolysaccharide content of chick bone [ J ]. The Journal of Nutrition, 1962,78 : 51 - 56.
6STOCK R H, LATSHAW J D. The effect of manga- nese, biotin, and choline on hexosamine and hydroxyproline content as related to leg weakness [ J ]. Poultry Science, 1981,60 : 1011 - 1016.
7LONGSTAFF M, HILL R. The influence of manga- nese in association with other dietary components on certain shell characteristics [ J ]. British Poultry Sci- ence, 1971,12 : 169 - 178.
8JI F, LUO X G, LU L, et al. Effects of manganese source and calcium on manganese uptake by in vitro everted gut sacs of broiler' s intestinal segments[J]. Poultry Science ,2006,85 : 1217 - 1225.
9JI F, LUO X G, LU L, et al. Effects of manganese source on manganese absorption by the intestine of broilers [ J ]. Poultry Science, 2006,85:1947 - 1952.
10AISEN P, AASA R, REDFIELD A G. The chromi- um, manganese, and cobalt complexes of transferrin[J]. The Journal of Biological Chemistry, 1969,244 : 4628 - 4633.
