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Title: The effects of extended daylight and closed-up housing on egg production, egg size, feed intake and mortality of black Australorp hens
Author: Marais, C. L. ; van der Vyver, J. H.
Series: Technical communication (South Africa. Dept. of Agricultural Technical Services), ; no. 68.
Description: iii, 7 p. ; 24 cm.
Holdings: n.68 (1967)
Subject: Feed intake. ; Poultry housing. ; Egg production. ; Hens. ; Photoperiod.
Type: Serial
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1 1967 68 On Shelf Storage 05:63(680)
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