INFLUENCE OF PHOTOPERIOD AND PATTERN OF PHOTOPERIOD CHANGE DURING GROWING AND LAYING PERIODS ON AGE OF SEXUAL MATURITY OF PULLETS, EGG PRODUCTION AND EGG WEIGHT

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SHUTZE, JV
MATSON, WE
MCGINNIS, J
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S8 [畜牧、 动物医学、狩猎、蚕、蜂];
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0905 ;
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