Effect of constant and of changing photoperiod on plasma LH and FSH concentrations and age at first egg in layer strains of domestic pullets

Author: Lewis P. D.   Perry G. C.   Morris T. R.   Douthwaite J. A.   Bentley G. E.  

Publisher: Taylor & Francis Ltd

ISSN: 1466-1799

Source: British Poultry Science, Vol.39, Iss.5, 1998-12, pp. : 662-670

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Abstract