Effects of Debeaking and Feeding Whole Grain on the Reproductive Performance of Pullets

Poultry Science - Tập 43 - Trang 356-362 - 1964
S.J. Slinger1, W.F. Pepper1
1Department of Poultry Science, Ontario Agricultural College, Guelph, Ontario, Canada

Tài liệu tham khảo

Bray, 1960, Performance of pullets debeaked at various times during the laying year, Poultry Sci., 39, 15461550, 10.3382/ps.0391546 Davis, 1951, Detrimental effect of corn of coarse particle size in rations for chicks, Poultry Sci., 30, 325, 10.3382/ps.0300325 Duncan, 1955, Multiple range and multiple F tests, Biometrics, 11, 1, 10.2307/3001478 Lonsdale, 1957, Debeaking at one day of age and the feeding of pellets to broiler chickens, Poultry Sci., 36, 565, 10.3382/ps.0360565 Slinger, 1962, The effects of debeaking at eight weeks of age on the grit consumption, weight gains and feed efficiencies of growing pullets, Poultry Sci., 41, 1614, 10.3382/ps.0411614 Snedecor, 1956 Vondell, 1957, Debeaking at one day of age and the feeding of pellets to broiler chickens. 2, Poultry Sci., 36, 1310, 10.3382/ps.0361310