THE INFLUENCE OF HOUSING SYSTEMS AND AGING OF LAYERS ON EGG QUALITY AND HATCHING

[1] ASMUNDSON VS, 1933, P WORLDS POULTRY C R, V5, P479

[2] THE VALUE OF A GRASS SWARD FOR BREEDING HENS [J]. POULTRY SCIENCE, 1957, 36 (04) : 780 - 788

[3] BRANT AW, 1953, USDA TECH B, V1066

[4] DOLES R, 1956, AGR REV, V2, P36

[5] DUNN LC, 1922, STORRS AGR EXPT STAT, V109

[6] RELATIONS OF YOLK, ALBUMEN AND EGG WEIGHT IN INBRED LINES OF BROWN LEGHORNS [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1954, 45 (01) : 32 - 35

[7] FRONING SW, 1958, POULTRY SCI, V37, P215

[8] GREENWOOD A. W., 1956, Journal of Agricultural Science, V47, P40, DOI 10.1017/S0021859600039769

[9] HAYS F. A., 1949, JOUR AGRIC RES, V78, P285

[10] JONES KWB, 1960, J SCI FOOD AGR

[1] ASMUNDSON VS, 1933, P WORLDS POULTRY C R, V5, P479

[2] THE VALUE OF A GRASS SWARD FOR BREEDING HENS [J]. POULTRY SCIENCE, 1957, 36 (04) : 780 - 788

[3] BRANT AW, 1953, USDA TECH B, V1066

[4] DOLES R, 1956, AGR REV, V2, P36

[5] DUNN LC, 1922, STORRS AGR EXPT STAT, V109

[6] RELATIONS OF YOLK, ALBUMEN AND EGG WEIGHT IN INBRED LINES OF BROWN LEGHORNS [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1954, 45 (01) : 32 - 35

[7] FRONING SW, 1958, POULTRY SCI, V37, P215

[8] GREENWOOD A. W., 1956, Journal of Agricultural Science, V47, P40, DOI 10.1017/S0021859600039769

[9] HAYS F. A., 1949, JOUR AGRIC RES, V78, P285

[10] JONES KWB, 1960, J SCI FOOD AGR