Ca requirement in feeds for laying hens. 1. Effect of different Ca contents on liveweight of laying hens, laying, feed intake and egg weight

Ca requirement in feeds for laying hens. 2. Effect of different Ca contents on weight of eggs laid at different levels of laying. Pol'nohospoddrstvo. 15: 365-375, 1969

Antibiotics in feeds for laying hens On the influence of Aureomcin mixed in different amounts in the feed on laying performance, body weight, feed utilization, brooding and hatching efficiency, mortality of hens and ehicks and yolk color. Arch Geflugelk: 217-239, 1958

Effect of different contents of Ca and P in feeds for laying hens reared intensively. 1. Effect on intake of feed and weight of eggs. Acta Zootechnica 26: 77-86, 1973

Calcium requirement in feed compounds for laying hens i influence of different calcium content on laying hen live weight egg laying feed consumption and egg weight 1. Pol'nohospodarstvo 14(5): 382-388, 1968

Effect of different contents of Ca in feeds for laying hens on its utilisation during the laying period. Acta Zootechnica 23: 167-179, 1972

Requirements of Ca and P in feeds for laying hens. 2. Effect of different contents of Ca and P on some indices of the quality of egg shells and laying performance. Acta zootech. Univ. Agric. Nitra. 16: 81-89, 1967

The quality of feed protein for laying hens. 10. Effect of a high proportion of wheat, fertilised late with N, with a supplement of L-lysine compared with a complete feed for laying hens. Arch. Geflugelzucht Kleintierk, 17: 105-127, 1968

Egg yield and feed intake of laying hens given all-mash feeds with different contents of energy and protein. Archiv fur Geflugelkunde 46(2): 84-94, 1982

Different contents of energy and calcium added in the form of grit to appetite in feeds for laying hens. 1. Effect on egg yield, feed intake and egg quality. Pol' nohospodarstvo 23(6): 546-555, 1977

Effect of laying house design and cage placement on egg laying and egg weight in laying hens. Revista de la Facultad de Agronomia, Universidad del Zulia 20(3): 339-351, 2003

Effects of different contents of nitrogen in feeds for rearing hens of laying type on their efficiency during laying. Zivocisna Vyroba 20(6): 423-434, 1975

The influence of various contents of Calcium in mixed feed for laying hens, upon its utilization during the period of laying. Acta zootechnica: 3 167-179, 1972

Effects of iso-energetic low-fat feed, soybean oil or palm oil containing feed offered to laying hens, either separately or for self-selection, on feed intake, laying and reproductive performance and on egg quality. Landbauforschung Volkenrode 52(4): 239-247, 2002

Study on the energy requirement of laying hens effect of different energy levels on the laying performance of hen and laying performance by strains of hens. Korean Journal of Animal Science 22(2): 143-152, 1980

Keepingsystems of laying hens in the future - The Commission's Proposal for a Council Directive laying down minimum standards for the protection of laying hens kept in various systems of rearing. DTW (Deutsche Tieraerztliche Wochenschrift) 106(4): 157-160, April, 1999