Abstract
Two experiments using commercial incrossbred pullets, 22 weeks of age, were conducted. In experiment No. 1 the results on performance of two levels of added choline chloride (400 and 1600 Gms/ton), B₁₂ (4 and 16 milligrams/ton) and vitamin E (4,000 and 16,000 I.U./ton) were compared. In experiment No. 2 the availability of lysine from opaque-2 corn was compared with a synthetic source. Two lysine levels were superimposed upon three cereal grain sources: (1) a commercial red grain sorghum; (2) a specially bred milo supplied by a certified breeder; and (3) a commercially available yellow corn. The two lysine levels were 0.45% which is slightly below the NRC recommended level of lysine for laying hens and 0.50% which is the NRC stated requirement. The increase from 0.45% to 0.50% was brought about by supplementation with opaque-2 corn and with a synthetic lysine. A positive control diet containing 0.76% lysine was used for checking adequacy of 0.50 lysine. ...
Murthy, Pinapaka Venkata Lakshmi Narasimha (1969). Effects of selected dietary factors on performance and incidence of fatty livers in commercial layers. Doctoral dissertation, Texas A&M University. Texas A&M University. Libraries. Available electronically from
https : / /hdl .handle .net /1969 .1 /DISSERTATIONS -175237.